MT300 Digital Manometer Getting Started Guide · Digital Manometer User’s Manual IM MT300-01EN The manual explains all the instrument features. It is included in the accompanying

User’sManual MT300

Digital ManometerGetting Started Guide

IM MT300-02EN2nd Edition

Product RegistrationThank you for purchasing YOKOGAWA products.

YOKOGAWA provides registered users with a variety of information and services.Please allow us to serve you best by completing the product registration form accessible from our website.

http://tmi.yokogawa.com/

PIM 103-04E

iIM MT300-02EN

Thank you for purchasing the MT300 digital manometer. This getting started guide primarily explains the handling precautions and basic operations of this instrument. To ensure correct use, please read this manual thoroughly before operation.After reading this manual, keep it in a safe place. The manuals for this instrument are listed on the next page. Please read all manuals.

Contact information of Yokogawa offices worldwide is provided on the following sheet.Document No. DescriptionPIM 113-01Z2 List of worldwide contacts

Notes• The contents of this manual are subject to change without prior notice as a result of continuing

improvements to the instrument’s performance and functions. The figures given in this manual may differ from those that actually appear on your screen.

• Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest YOKOGAWA dealer.

• Copying or reproducing all or any part of the contents of this manual without the permission of YOKOGAWA is strictly prohibited.

Trademarks• Microsoft, Internet Explorer, Windows, Windows 8.1, and Windows 10 are registered trademarks or

trademarks of Microsoft Corporation in the United States and/or other countries.• Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems Incorporated.• VCO is a registered trademark of SWAGELOK Company in the United States.• In this manual, the TM and ® symbols do not accompany their respective registered trademark or

trademark names.• Other company and product names are trademarks or registered trademarks of their respective

holders.

Revisions• October 2019 1st Edition• June 2020 2nd Edition

2nd Edition: June 2020 (YMI)All Rights Reserved, Copyright © 2019 Yokogawa Test & Measurement Corporation

ii IM MT300-02EN

Manuals

The following manuals, including this one, are provided as manuals for this instrument. Please read all manuals.Manual Title Manual No. DescriptionMT300 Digital Manometer User’s Manual

IM MT300-01EN The manual explains all the instrument features.It is included in the accompanying CD.

MT300 Digital Manometer Getting Started Guide

IM MT300-02EN This document. Provided as a printed manual. This guide explains the handling precautions, basic operations, and specifications of the instrument.

MT300 Digital Manometer IM MT300-92Z1 Document for ChinaBattery Pack Handling Precautions IM 739883-01EN This manual is included in models with the /EB

option (battery pack + battery pack cover). It explains the handling precautions of the battery pack.

739883 Battery Pack IM 739883-92Z1 Document for ChinaThis manual is included in models with the /EB option (battery pack + battery pack cover).

269918 Battery Pack Cover IM 269918-92Z1 Document for ChinaThis manual is included in models with the /EB option (battery pack + battery pack cover).

The “EN”, “E”, and “Z1” in the manual numbers are the language codes.

iiiIM MT300-02EN

Checking the Contents of the Package

Unpack the box, and check the following before operating the instrument. If the wrong items have been delivered, if items are missing, or if there is a problem with the appearance of the items, contact your nearest YOKOGAWA dealer.

MT300Check that the product that you received is what you ordered by referring to the model name and suffix code given on the name plate on the side panel.

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx






MODEL Suffix1 SpecificationsMT300 Digital ManometerPressure type and range

-G01 Gauge pressure 10 kPa-G03 Gauge pressure 200 kPa-G05 Gauge pressure 1000 kPa-G06 Gauge pressure 3500 kPa-G07 Gauge pressure 16 MPa-G08 Shield gauge pressure 70 MPa-A03 Absolute pressure 130 kPa-A05 Absolute pressure 700 kPa-A06 Absolute pressure 3500 kPa-D00 Differential pressure 1 kPa-D01 Differential pressure 10 kPa-D03 Differential pressure 130 kPa-D05 Differential pressure 700 kPa

Pressure unit -U1 Pa, hPa, kPa, MPa, mbar, bar, atm-U2 Pa, hPa, kPa, MPa, mbar, bar, atm, mmHg, inHg, gf/cm2, kgf/cm2,

Torr, psi, mmH2O@4°C, mmH2O@20°C, ftH2O@4°C, ftH2O@20°C, inH2O@4°C, inH2O@20°C

Input connection section

-P1 Rc 1/4 female-threaded-P2 1/4 NPT female-threaded-P3 VCO 1/4 male-threaded2

-P4 1/2 NPT female-threaded (When -G08 is selected, only -P4 can be selected for -G08.)

Power cord3 -D UL/CSA standard and PSE compliant, Rated voltage: 125 V-F VDE/Korean standard, Rated voltage: 250 V-R Australian standard, Rated voltage: 250 V-Q British standard, Rated voltage: 250 V-H Chinese standard, Rated voltage: 250 V-N Brazilian standard, Rated voltage: 250 V-T Taiwanese standard, Rated voltage: 125 V-B Indian standard, Rated voltage: 250 V-U IEC plug Type B, Rated voltage: 250 V-Y No power cord included4

Options /F1 Measurement mode switching function5

/DM DMM function and 24 VDC output6/DA D/A output and comparator output/R1 One additional display resolution digit7/EB Battery pack + battery pack cover

1 For products whose suffix contains “Z,” an exclusive manual may be included. Please read it along with the standard manual.

2 A product equivalent to that of Swagelok.3 Make sure that the attached power cord meets the designated standards of the country and area that you

are using it in.4 Prepare a power cord that complies with the standard specified by the country or region that the instrument

will be used in.5 Not selectable for -G07, -G08, or the differential pressure model.6 Selectable on the gauge pressure model and absolute pressure model.7 Not selectable for -G08 or -D00.

iv IM MT300-02EN

No.(Instrument number)When contacting the dealer from which you purchased the instrument, please give them the instrument number.

Standard AccessoriesThe following accessories are included. Check that all contents are present and undamaged.

Item Model or Part No. Quantity Specifications and NotesPower cord — (1) Included or not included depending on the suffix

codeRubber stoppers A9088ZM 1 1 sheet (2 pcs.), attached to the rear feet.Measurement target designation label

B8511HA 1 —

VCO body B9320GU 1(2) When -P3 is selectedOne piece is included with the gauge pressure model and absolute pressure model and two pieces with the differential pressure model.

Conversion connector 91086 1 When -P4 is selected1/2 NPT male-threaded – 1/4 NPT female-threaded (maximum working pressure is 98 MPa.)

91087 1 When -P4 is selected1/2 NPT male-threaded – Rc1/4 female-threaded (maximum working pressure is 98 MPa.)

Cap for the pressure input port G9330DB 1 (When -G08 is selected: Attached on the instrument before shipment)

Measurement lead 366961 1 On models with the /DM optionTerminal plug A2119JT 1 On models with the /DA optionBattery pack 739883 1 On models with the /EB optionBattery pack cover 269918 1 On models with the /EB optionManuals

Printed manuals IM MT300-02EN 1 Getting Started Guide (this guide)IM 739883-01EN 1 Battery Pack Handling Precautions

On models with the /EB optionIM MT300-92Z1 1 Document for ChinaIM 739883-92Z1 1 Document for China

On models with the /EB optionIM 269918-92Z1 1 Document for China

On models with the /EB optionPIM 113-01Z2 1 List of worldwide contacts

Manual CD A1030US 1 Contains PDF data of the user’s manuals.(For the types of manuals that CD contains, see the next page.)

Standard accessories are not covered by warranty.

UL/CSA standard and PSE compliantA1006WD

VDE/Korean standardA1009WD

Australian standardA1024WD

D F R

Power cord (one cord that matches the suffix code is included) *

Chinese standardA1064WD

H

Brazilian standardA1088WD

N

Taiwanese standardA1100WD

T B

Indian standardA1101WD

IEC plug Type BA1102WD

U

British standardA1054WD

Q

* Make sure that the attached power cord meets the designated standards of the country and area that you are using it in. If the suffix code is -Y, a power cord is not included.


vIM MT300-02EN

Battery pack(lithium-ion)739883

Battery pack cover269918

Manuals• Printed manuals • Manual CD

Measurement target designation label B8511HA

VCO body B9320GU

Conversion connector 91086, 91087

Cap G9330DB

Rubber stoppersA9088ZM

Measurement lead366961

Terminal plugA2119JT

Manual CDThe English folder in the manual CD contains the PDF files shown below. The CD also contains Japanese manuals.

File Name Manual Title Manual No.MT300 User’s Manual.pdf MT300 Digital Manometer User’s Manual IM MT300-01ENTo view the PDF data, you need Adobe Acrobat Reader or a software application that can open PDF data.

Optional Accessories (Sold separately)The optional accessories below are available for purchase separately. For information about ordering accessories, contact your nearest YOKOGAWA dealer.

Item Model/Part No.

Minimum Q’ty Unit

General Specifications Manual No.

Connector assembly kit B9984BY 1 For the Φ4×Φ6 vinyl tube (for -P1) —Connector assembly kit B9984BW 1 For the Φ4×Φ6 vinyl tube (for -P2) —Binding post(Conversion adapter)

99045 1 Binding post (red-black pair) with one sheet plate

—

99046 1 Binding post (red-red pair) with one sheet plate

—

Conversion adapter 366921 1 BNC-to-binding post —Conversion connector 91080 1 R1/4 male-threaded – 1/8 NPT

female-threaded (for -P1)(maximum working pressure is 21 MPa.)

—

91081 1 R1/4 male-threaded – 1/4 NPT female-threaded (for -P1)(maximum working pressure is 21 MPa.)

—

91082 1 1/4 NPT male-threaded – 1/8 NPT female-threaded (for -P2)(maximum working pressure is 21 MPa.)

—

91083 1 1/2 NPT male-threaded – 1/8 NPT female-threaded (for -P4)(maximum working pressure is 84 MPa.)

—

91086 1 1/2 NPT male-threaded – 1/4 NPT female-threaded (for -P4) (maximum working pressure is 98 MPa.)

—

91087 1 1/2 NPT male-threaded – Rc1/4 female-threaded (for -P4) (maximum working pressure is 98 MPa.)

—

Carrying case 701963 1 — —Rack mount kit 751533-E3 1 set For EIA single mount IM 751533-E3-11E

751534-E3 1 set For EIA dual mount IM 751534-E3-11E751533-J3 1 set For JIS single mount IM 751533-J3-11E751534-J3 1 set For JIS dual mount IM 751534-J3-11E

Battery pack 739883 1 — IM 739883-01ENBattery pack cover 269918 1 — —Accessories (sold separately) are not covered by warranty.


vi IM MT300-02EN

External Dimensions of Conversion Connectors

91080 26.9 7.1 Engraved as “NPT” 91081 36.1 7.1 Engraved as “NPT”91082 26.9 7.191083 27.4 8.691086 46.0 6.4 91087 40.4 11.3*

Conversion Connector

A(mm)

B(mm)

Note

*: Diameter of C

Location of engraving

A

B C


viiIM MT300-02EN

Conventions Used in This Manual

NotesThe notes and cautions in this manual are categorized using the following symbols.

Improper handling or use can lead to injury to the user or damage to the instrument. This symbol appears on the instrument to indicate that the user must refer to the user's manual for special instructions. The same symbol appears in the corresponding place in the user’s manual to identify those instructions. In the manual, the symbol is used in conjunction with the word “WARNING” or “CAUTION.”

WARNING Calls attention to actions or conditions that could cause serious or fatal injury to the user, and precautions that can be taken to prevent such occurrences.

CAUTION Calls attention to actions or conditions that could cause light injury to the user or damage to the instrument or user’s data, and precautions that can be taken to prevent such occurrences.

French

AVERTISSEMENT Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des blessures graves (voire mortelles), et sur les précautions de sécurité pouvant prévenir de tels accidents.

ATTENTION Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des blessures légères ou d’endommager l’instrument ou les données de l’utilisateur, et sur les précautions de sécurité susceptibles de prévenir de tels accidents.

Note Calls attention to information that is important for the proper operation of the instrument.

Prefixes k and KThis manual distinguishes prefixes k and K used before units as follows:k: Denotes 1000. Example: 100 kPa (pressure value)K: Denotes 1024. Example: 720 KB (file size)

Notations Used in the Procedural ExplanationsThe contents of the procedural explanations are indicated using the following symbols.

Procedure Carry out the procedure according to the step numbers. All procedures are written under the assumption that you are starting operation at the beginning of the procedure, so you may not need to carry out all the steps in a procedure when you are changing the settings.

Explanation This section describes the setup items and the limitations regarding the procedures.

Characters and Terminology Used in Procedural ExplanationsPanel Keys and Soft Keys

Bold characters used in the procedural explanations indicate panel keys or soft keys (setup menus).

viii IM MT300-02EN

Safety Precautions

This product is designed to be used by a person with specialized knowledge.This instrument is an IEC safety class I instrument (provided with a terminal for protective earth grounding).The general safety precautions described herein must be observed during all phases of operation. If the instrument is used in a manner not specified in this manual, the protection provided by the instrument may be impaired.This manual is part of the product and contains important information. Store this manual in a safe place close to the instrument so that you can refer to it immediately. Keep this manual until you dispose of the instrument. YOKOGAWA assumes no liability for the customer’s failure to comply with these requirements.

The following symbols are used on this instrument. Handle with care. Refer to the user’s manual or service manual. This symbol appears on

dangerous locations on the instrument which require special instructions for proper handling or use. The same symbol appears in the corresponding place in the manual to identify those instructions.

Ground or the functional ground terminal (do not use as the protective earth ground terminal)

Alternating current

Direct current

On(power)

Stand-by

Power-on state

Power-off state

French À manipuler délicatement. Toujours se reporter aux manuels d’utilisation et d’entretien. Ce

symbole a été apposé aux endroits dangereux de l’instrument pour lesquels des consignes spéciales d’utilisation ou de manipulation ont été émises. Le même symbole apparaît à l’endroit correspondant du manuel pour identifier les consignes qui s’y rapportent.

Borne de terre ou borne de terre fonctionnelle (ne pas utiliser cette borne comme prise de terre.)

Courant alternatif

Courant direct

Marche (alimentation)

Veille

Marche

Arrêt

ixIM MT300-02EN

Follow the precautions below. Failure to comply with the precautions below could lead to injury or death or damage to the instrument.

WARNINGUse the Instrument Only for Its Intended PurposeThis instrument measures pressure. Do not use it for any other purpose.

Check the Physical AppearanceDo not use the instrument if there is a problem with its physical appearance.

Use the Correct Power supplyFirst, ensure that the source voltage matches the rated supply voltage of the instrument and that it is within the maximum rated voltage of the power cord you will use. Then connect the power cord.

Use the Correct Power Cord and PlugTo prevent the possibility of electric shock or fire, be sure to use the power cord for the instrument. The main power plug must be plugged into an outlet with a protective earth terminal. Do not invalidate this protection by using an extension cord without protective earth grounding. Further, do not use this power cord with other instruments.

Connect the Protective Ground TerminalBe sure to connect the protective earth to prevent electric shock before turning ON the power. The power cord that you can use for the instrument is a three-prong cord. Connect the power cord to a properly grounded three-prong outlet.

Do Not Impair the Protective GroundingNever cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal. Doing so may result in electric shock or damage to the instrument.

Do Not Use When the Protection Functions Are DefectiveBefore using this instrument, check that the protection functions, such as the protective grounding and fuse, are working properly. If you suspect a defect, do not use the instrument.

Ground the Instrument before Making External ConnectionsSecurely connect the protective grounding before connecting to the item under measurement or to an external control unit. Before touching a circuit, turn off its power and check that it has no voltage.

Do Not Operate in an Explosive AtmosphereThis instrument is not explosion-proof.Do not operate the instrument in the presence of flammable gases or vapors. Doing so is extremely dangerous.

Observe the Pressure LimitDo not apply more than the allowable input pressure. Doing so may cause the instrument to break, cause a physical explosion, or the like. This could endanger the user or the surrounding instruments.

Safety Precautions

x IM MT300-02EN

Measure High-Pressure Fluids Properly• Use tubes and pressure connectors that can withstand the pressure to be measured.• Make sure that there are no leaks from the tubes, connectors, and joints and that the joints

are not loose. If the fluid under measurement leaks or if a joint comes loose, the pressure can endanger the user or the surrounding instruments. Note that higher the pressure, greater the danger.

• Depending on the amount or type of gas, if you are handling gas that is 1 MPa or higher, supervision may be required under the High Pressure Gas Safety Act.

• Do not measure flammable, explosive, poisonous, or corrosive liquids. Such an act can endanger the user.• Do not measure substances or mixtures (dangerous fluids) in Group 1 defined in Directive

2014/68/EC Article 13(1)a.• If high-pressure fluid or gas bursts out, do not bring your hand or body close to where it is

bursting out. High-pressure fluid or gas could penetrate through the skin, causing serious injury.

• When you need to increase pressure, increase it slowly. If you increase the pressure quickly, the force that causes the tube to straighten out will jerk the instrument or the tube. This could endanger the user or the surrounding instruments.

Do Not Remove the Covers or Disassemble or Alter the InstrumentRemoving covers and disassembling or altering the instrument are strictly prohibited.Some sections inside the instrument have high voltages that are extremely dangerous. For internal inspection and adjustment, contact your nearest YOKOGAWA dealer.

Measurement CategoryThe measurement category of this instrument is Other (O). Do not use it to measure the main power supply or locations that fall under Measurement Categories II, III, and IV.

Install or Use the Instrument in Appropriate LocationsInstall the instrument so that you can immediately remove the power cord if an abnormal or dangerous condition occurs.

Manual CDNever play this manual CD, which contains the user’s manuals, in an audio CD player. Doing so may cause loss of hearing or speaker damage due to the large sounds that may be produced.

AccessoriesUse the accessories specified in this manual. Moreover, use the accessories of this product only with Yokogawa products that specify them as accessories. Do not use faulty accessories.The same applies to the attached conversion connector for -P4.

Safety Precautions

xiIM MT300-02EN

Battery packOnly use the battery pack for this instrument. Do not use this battery pack with other instruments. Only use this instrument to charge the battery pack.When the battery pack is charged with the instrument turned off, if the battery pack is still charging after 6 hours, stop charging it immediately.Your clothing may be damaged or you may be injured if you come in contact with the electrolyte in the battery pack due to fluid leakage or the battery pack exploding. Because the electrolyte may cause loss of eyesight, if it comes in contact with your eyes, immediately wash the affected area with clean water, and consult a doctor as soon as possible.When you change the battery pack, be sure to turn off the device under measurement, and disconnect it. Failure to do so may lead to electric shock or other accidents.Do not throw the battery pack into fire or heat it. Such actions are dangerous as they may cause the battery pack to explode or the electrolyte to be sprayed about.Follow the additional handling precautions that are included in the battery pack's user's manual.When you are not using the battery pack, attach a battery pack terminal protection cover to the battery pack terminal area of the instrument. Do not use the instrument without the battery pack terminal protection cover.

CAUTION• Do not use the instrument to measure gas or liquids that can corrode the tube material,

high temperature liquids (50°C or higher) or gas-liquid mixtures. If you are measuring gas, make sure the gas is dry and clean. Do not measure air with high

moisture or high oil content.• For safety and sanitary reasons, do not use the instrument to measure liquids for drinking.• Because this instrument is a precision instrument, handle it carefully without applying

shock.• Do not use the instrument where the ambient temperature drastically fluctuates. Such

environment can cause measurement errors.• Using the instrument where there is wind or air flow may degrade the measurement

accuracy.• On the -G08 model, cap the pressure inlet port when the instrument is not used.

Operating Environment LimitationsThis product is classified as Class A (for use in industrial environments). Operation of this product in a residential area may cause radio interference, in which case the user will be required to correct the interference.

Safety Precautions

xii IM MT300-02EN

French

AVERTISSEMENTUtiliser l’instrument aux seules fins pour lesquelles il est prévuCet instrument est conçu pour mesurer la pression. Utilisez cet instrument uniquement pour la mesure de pression.

Inspecter l’apparence physiqueNe pas utiliser l’instrument si son intégrité physique semble être compromise.

Vérifier l’alimentationAssurez-vous que la tension d’alimentation correspond à la tension d’alimentation nominale de l’appareil et qu’elle ne dépasse pas la plage de tension maximale du cordon d’alimentation à utiliser.

Utiliser le cordon d’alimentation et la fiche adaptésPour éviter tout risque de choc électrique, utiliser exclusivement le cordon d’alimentation prévu pour cet instrument. La fiche doit être branchée sur une prise secteur raccordée à la terre. En cas d’utilisation d’une rallonge, celleci doit être impérativement reliée à la terre. Par ailleurs, ne pas utiliser ce cordon d’alimentation avec d’autres instruments.

Brancher la prise de terreAvant de mettre sous tension, veiller à brancher la mise à la terre de protection afin d’éviter les chocs électriques. Le cordon d’alimentation que vous utilisez pour l’instrument est un cordon à trois broches.Brancher le cordon d’alimentation sur une prise de courant à trois plots et mise à la terre.

Ne pas entraver la mise à la terre de protectionNe jamais neutraliser le fil de terre interne ou externe, ni débrancher la borne de mise à la terre. Cela pourrait entraîner un choc électrique ou endommager l’instrument.

Ne pas utiliser lorsque les fonctions de protection sont défectueusesAvant d’utiliser l’instrument, vérifier que les fonctions de protection, telles que le raccordement à la terre et le fusible, fonctionnent correctement. En cas de dysfonctionnement possible, ne pas utiliser l’instrument.

Relier l’instrument à la terre avant de le brancher sur des connexions externesToujours relier l’instrument à la terre avant de le brancher aux appareils à mesurer ou à une commande externe. Avant de toucher un circuit, mettre l’instrument hors tension et vérifier l’absence de tension.

Ne pas utiliser dans un environnement explosifCet instrument n’est pas antidéflagrant.Ne pas utiliser l’instrument en présence de gaz ou de vapeurs inflammables. Cela pourrait être extrêmement dangereux.

Respecter la limite de pressionNe pas appliquer une pression supérieure à la pression d’entrée admissible Si vous le faites, l’instrument risque de se casser, de provoquer une explosion physique ou autre. Cela pourrait mettre en danger l’utilisateur ou les instruments environnants.

Safety Precautions

xiiiIM MT300-02EN

Mesure du fluide haute pression• Utiliser une tuyauterie et des connecteurs pression pouvant résister à la pression à

mesurer.• S’assurer de l’absence de fuites au niveau de la tuyauterie, des connecteurs et des joints,

et vérifier que les joints ne sont pas desserrés. En cas de fuite du fluide mesuré ou de desserrage d’un joint, la pression risque de mettre en danger l’utilisateur ou les instruments environnants. Il est à noter que plus la pression est élevée, plus le danger est important.

• En cas de manipulation de gaz à 1MPa ou plus, la législation relative à la sécurité des gaz haute pression peut rendre une surveillance obligatoire, en fonction de la quantité ou du type de gaz.

• Ne pas mesurer des liquides inflammables, toxiques ou corrosifs. Une telle action peut s’avérer dangereuse pour l’utilisateur.• Cet instrument ne s’adresse pas aux substances et mélanges du Groupe 1 (liquides

dangereux) tels que listés dans la Directive 2014/68/EU Article 13 (1) a ;.• Si un liquide ou un gaz sous haute pression jaillissent, ne pas approcher la main ou le

corps du jet. Le liquide ou le gaz sous haute pression pourraient pénétrer par la peau, entraînant des blessures graves.

• Augmenter la pression lentement lors de la pressurisation. En cas de pressurisation soudaine, cet instrument et les tubes connectés peuvent balayer la zone sous la force de redressage.

Ne pas retirer le capot, ni démonter ou modifier l’instrumentSeul le personnel YOKOGAWA qualifié est habilité à retirer le capot et à démonter ou modifier l’instrument. Certains composants à l’intérieur de l’instrument sont à haute tension et par conséquent, représentent un danger.

Catégorie de mesureLa catégorie de mesure de cet instrument est Autre (O). Ne l’utilisez pas pour mesurer l’alimentation principale ou les emplacements relevant des catégories de mesure II, III et IV.

Installer et utiliser l’instrument aux emplacements appropriésInstaller l’instrument de manière à pourvoir immédiatement le débrancher du secteur en cas de fonctionnement anormal ou dangereux.

CD de manuelsCe CD contient les manuels d’utilisation. Ne jamais insérer ce CD dans un lecteur de CD audio. Cela pourrait entraîner une perte d’audition ou l’endommagement des enceintes en raison du volume potentiellement élevé des sons produits.

AccessoiresUtiliser les accessoires spécifiés dans ce manuel. En outre, utiliser les accessoires de ce produit uniquement avec des produits Yokogawa pour lesquels ils sont spécifiés comme accessoires. Ne pas utiliser d’accessoires défectueux. La même chose s’applique au connecteur de conversion attaché pour -P4.

Safety Precautions

xiv IM MT300-02EN

Pack de batteriesUtiliser exclusivement le pack de batteries pour cet instrument. Ne pas utiliser ce pack de batteries avec d’autres instruments. Utiliser uniquement cet instrument pour charger le pack de batteries.Lorsque le pack de batteries est chargé et que l’instrument est éteint, si le pack de batteries est encore en charge après 6 heures, interrompre la charge immédiatement.Tout contact avec l’électrolyte échappé en raison d’une fuite ou d’une explosion du pack de batteries peut endommager les vêtements ou causer des blessures. L’électrolyte peut entraîner la cécité, par conséquent, en cas de contact avec les yeux, rincer immédiatement à l’eau et consulter un médecin dans les plus brefs délais.Lors du remplacement du pack de batteries, veiller à toujours mettre hors tension l’appareil à mesurer, et le débrancher.Le non-respect de cette consigne peut entraîner un choc électrique ou tout autre indicent. Tenir le pack de batteries éloigné de toute source de chaleur et des flammes pour éviter le risque d’explosion du pack de batteries ou de déversement d’électrolyte.Respecter les consignes de manipulation supplémentaires fournies dans le manuel d’utilisation du pack de batteries.Lorsque vous n’utilisez pas le pack de batteries, fixez un couvercle de protection des bornes de celui-ci à la zone de fixation du pack de batteries de l’instrument. Ne pas utiliser l’instrument sans le couvercle de protection des bornes du pack de batteries.

ATTENTION• Ne pas utiliser l’instrument pour mesurer des gaz ou des liquides susceptibles de corroder

le matériau de la tuyauterie, des liquides haute température (50 °C ou plus) ni des mélanges gaz-liquides.

En cas de mesure de gaz, s’assurer que le gaz est propre et sec. Ne pas mesurer de l’air très humide ni de l’air à haute teneur en huile.

• Pour des raisons sécuritaires et sanitaires, ne pas utiliser l’instrument pour mesurer des liquides destinés à être ingérés.

• Comme il s’agit d’un instrument de précision, manipulez-le avec précaution sans appliquer de choc.

• Ne pas utiliser l’instrument dans un lieu exposé à de fortes fluctuations de la température ambiante. Un tel environnement peut provoquer des erreurs de mesure.

• L’utilisation de l’instrument dans un lieu exposé au vent ou aux courants d’air risque d’affecter la précision de la mesure.

• Sur le modèle -G08, bouchez l’orifice d’entrée de pression lorsque l’instrument n’est pas utilisé.

Limitations relatives à l’environnement opérationnelCe produit est un produit de classe A (pour environnements industriels). L’utilisation de ce produit dans un zone résidentielle peut entraîner une interférence radio que l’utilisateur sera tenu de rectifier.

Safety Precautions

xvIM MT300-02EN

Regulations and Sales in Each Country or Region

Waste Electrical and Electronic Equipment Waste Electrical and Electronic Equipment

(This directive is valid only in the EU.) This product complies with the WEEE directive marking requirement. This marking indicates

that you must not discard this electrical/electronic product in domestic household waste.

Product Category With reference to the equipment types in the WEEE directive, this product is classified as a

“Monitoring and control instruments” product.

Do not dispose in domestic household waste. When disposing products in the EU, contact your local Yokogawa Europe B.V. office.

EU Battery Directive EU Battery Directive

(This directive is valid only in the EU.) Batteries are included in this product. This marking indicates they shall be sorted out and

collected as ordained in the EU battery directive.

Battery type 1. Lithium Do not try to replace the battery yourself. When you need to replace batteries, contact

your local Yokogawa Europe B.V.office. 2. Lithium-ion (739883 Battery Pack) Do not disassemble the battery pack. When you remove the battery pack from this instrument and dispose of the battery pack

by itself, follow the domestic law concerning disposal. Take the proper action to dispose batteries in accordance with the established collection system in the European Economic Area. For the battery removal procedure, see section 2.4.

Pressure Equipment DirectiveThis instrument is a Sound Engineering Practice (SEP) product as defined in the Pressure Equipment Directive (PED).

Recycle Mark Do not dispose with regular waste. To protect the environment, discard in accordance with your local recycling regulations.

Authorized Representative in the EEAYokogawa Europe B.V. is the authorized representative of Yokogawa Test & Measurement Corporation for this product in the EEA. To contact Yokogawa Europe B. V., see the separate list of worldwide contacts, PIM 113-01Z2.

xvi IM MT300-02EN

關於在台灣銷售This section is valid only in Taiwan.關於在台灣所販賣的符合其相關規定的電源線A1100WD的限用物質含量信息，請至下麵的網址進行查詢

https://tmi.yokogawa.com/support/service-warranty-quality/product-compliance/

DisposalWhen disposing of YOKOGWA products, follow the laws and ordinances of the country or region where the product will be disposed of.

Regulations and Sales in Each Country or Region

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Contents

Manuals ............................................................................................................................................ iiChecking the Contents of the Package............................................................................................ iiiConventions Used in This Manual .................................................................................................. viiSafety Precautions ......................................................................................................................... viiiRegulations and Sales in Each Country or Region .........................................................................xv

Chapter 1 Component Names and Functions1.1 Front Panel, Rear Panel, and Top Panel .......................................................................... 1-11.2 Panel Keys ....................................................................................................................... 1-41.3 Display .............................................................................................................................. 1-6

Chapter 2 Measurement Preparation2.1 Handling Precautions ....................................................................................................... 2-12.2 Appropriate Locations for Using the Instrument ............................................................... 2-4

2.3 Connecting the Power Supply and Turning the Power Switch On and Off ....................... 2-8 2.4 Mounting, Removing, and Charging the Battery Pack (/EB option) ................................2-112.5 Performing Zero Calibration ........................................................................................... 2-15

2.6 Connecting the Connector to the Pressure Input Port .................................................... 2-17

Chapter 3 Common Operations3.1 Key Operation and Functions ........................................................................................... 3-13.2 Entering Values and Strings ............................................................................................. 3-23.3 Setting the Date and Time ................................................................................................ 3-33.4 Initializing Settings ............................................................................................................ 3-43.5 Initializing the Zero Calibration Value ............................................................................... 3-53.6 Displaying and Clearing the Error Log ............................................................................. 3-6

Chapter 4 External Signal I/O4.1 External Trigger/Sync Signal Input (TRIG IN/SYNC IN) ................................................... 4-14.2 Sync Signal Output (SYNC OUT) ..................................................................................... 4-24.3 Voltage Input (V)/Current Input (A) (/DM option) .............................................................. 4-34.4 24 VDC Output (24 V OUT) (/DM option) ......................................................................... 4-44.5 D/A Output (D/A OUTPUT) (/DA option) ........................................................................... 4-54.6 Comparator Output (COMP/BUSY OUT) (/DA option) ..................................................................... 4-6

Chapter 5 Troubleshooting, Maintenance, and Inspection5.1 If a Problem Occurs .......................................................................................................... 5-15.2 Error Code Descriptions and Corrective Actions .............................................................. 5-25.3 Communication Error Messages ...................................................................................... 5-35.4 Viewing System Information (Overview)........................................................................... 5-65.5 Carrying Out Self-Tests .................................................................................................. 5-105.6 Power Supply Fuse .........................................................................................................5-115.7 Recommended Part Replacement ..................................................................................5-115.8 Adjustment and Calibration ............................................................................................ 5-12

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Chapter 6 Specifications6.1 Pressure Measurement Specifications ............................................................................. 6-1

MT300-G01 ...................................................................................................................... 6-1MT300-G03 ...................................................................................................................... 6-2MT300-G05 ...................................................................................................................... 6-3MT300-G06 ...................................................................................................................... 6-4MT300-G07 ...................................................................................................................... 6-5MT300-G08 ...................................................................................................................... 6-6MT300-A03 ....................................................................................................................... 6-7MT300-A05 ....................................................................................................................... 6-8MT300-A06 ....................................................................................................................... 6-9MT300-D00 .................................................................................................................... 6-10MT300-D01 .....................................................................................................................6-11MT300-D03 .................................................................................................................... 6-12MT300-D05 .................................................................................................................... 6-13

6.2 Voltage Input (V)/Current Input (A) and 24 VDC output Specifications (/DM option) ...... 6-146.3 D/A output and comparator output Specifications (/DA option) ........................................... 6-156.4 Functional Specifications ................................................................................................ 6-166.5 Communication Specifications ....................................................................................... 6-176.6 General Specifications ................................................................................................... 6-186.7 External Dimensions ...................................................................................................... 6-20

AppendixAppendix 1 Factory Default Settings .....................................................................................App-1Appendix 2 Additional Explanation for Communication Commands .....................................App-3

Contents

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Chapter 1 Component Names and Functions

1.1 Front Panel, Rear Panel, and Top Panel

Front PanelAbsolute Pressure/Gauge Pressure Model/Shield Gauge Pressure Model (-G08 only)

Soft keysUse these keys to select items on the setup menus that appear during configuration.

Power switchTurns the power on and offSee section 2.3.

Pressure input portThere is also another port on the rear panel, but it cannot be used simultaneously with this port. See section 2.6.

The pressure input port of -G08 model is only on the rear panel.(It is not available on the front panel.)

Battery pack charge statusLights when the battery pack is being charged.Blinks when the battery pack’s battery level falls below 15%.

LCDExplanations of displayed information See section 1.3.

Panel keysSee section 1.2.

Reference point of the pressure receiving sectionSee section 2.5.

Panel KeysSee section 1.2.

Absolute Pressure/Gauge Pressure Model (with the /DM option)

Current input terminalThis terminal is used when measuring the current with the DMM function.See section 4.3.

Voltage input terminalThis terminal is used when measuring the voltage with the DMM function.See section 4.3.

24 VDC output terminalThis terminal supplies 24 VDC power.See section 4.4.

Common terminal

Differential Pressure Model

Pressure input port high sideThere is also another port on the rear panel, but it cannot be used simultaneously with this port.See section 2.6.

Pressure input port low sideThere is also another port on the rear panel, but it cannot be used simultaneously with this port.See section 2.6.

1-2 IM MT300-02EN

Rear PanelAbsolute Pressure/Gauge Pressure Model

Ethernet portUsed to connect the instrument to a networkSee the user’s manual.

USB port for PCs Type BUse to connect to a PC that has a USB port.See the user’s manual.

External trigger/sync signal input terminalUse to apply external trigger signals and sync signals.See section 4.1.

Sync signal output terminalUsed to output sync signals from the instrument.See section 4.2.

GP-IB portUse this connector to communicate with the instrument through the GP-IB interface.See the user’s manual.

Power inlet See section 2.3.

Comparator output terminal (/DA option)Used to output judgment results.See section 4.6.D/A output terminal

(/DA option)Used to output D/A signals.See section 4.5.

Pressure input port There is also another port on the front panel, but it cannot be used simultaneously with this port.See section 2.6.


Pressure input port low sideThere is also another port on the front panel, but it cannot be used simultaneously with this port.See section 2.6.

Pressure input port high sideThere is also another port on the front panel, but it cannot be used simultaneously with this port.See section 2.6

Shield Gauge Pressure Model (-G08)

Pressure input portThe pressure input port is only on the rear panel.(It is not available on the front panel.)See section 2.6.


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Top Panel

Handle

Battery pack terminal protection coverThis cover is used when mounting the battery pack (/EB option).See section 2.4.


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1.2 Panel Keys

MENU KeyDisplays the top menu. Use this key to display various settings.

Arrow keysPress the arrow (▲, ▼, ◄, ►) keys to change values, move between digits, and move the cursor.

ENTER keyPress this key to confirm procedures and settings.

ESC (LOCAL) keyUse this key to close setup menus and dialog boxes and to return to the setup menu level above the current one. Use this key also to switch from remote connection to local connection.

REMOTE IndicatorThis indicator lights when the instrument is connected remotely.

KEY LOCK keyYou can lock only the ZERO CAL key or all keys except the KEY LOCK key.

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ZERO CAL KeyExecutes zero calibration (zero CAL) of pressure.

RELATIVE KeyDisplays pressure with relative values. Displays the relative value on the main screen and the pressure value and reference value on the sub screen. The key remains lit while the relative value, pressure, and reference value are displayed on the screen.

MAX/MIN KeyDisplays the maximum and minimum pressure values on the sub screen. The key remains lit while the maximum and minimum pressure values are displayed on the screen. When the DMM function (/DM option) is on, the maximum and minimum DMM values are also displayed.

HOLD KeyStops acquiring data and holds the displayed data. The key remains lit while the displayed data is held.

TRIG KeyUse this key to trigger manually. When you press the key, the instrument is triggered once. When data is acquired, the key lights momentarily. The key indicator can be turned off by the setting.

STORE KeySaves data when in manual store mode.

START/STOP KeyStarts and stops data saving. The key lights while the data is being saved.

ON/OFF Key (with the /DM option)Turns on and off the 24V DC output. The key lights when the output is turned on.

1.2 Panel Keys

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1.3 Display

Example of a Pressure Measurement Screen

When the scaling function is turned ON

Date and time

Displayed when an AC power supplies connected

Key lock mode Z.LOCK: Locks only the ZERO CAL key K.LOCK: Locks all keys except the KEY LOCK key

Displayed when hold is on

Displayed when an error is in the error log

Trigger mode INT: Internal trigger mode EXT: External trigger mode SYNC: Sync trigger mode

Setup menu

Main screen

Sub screen

Pressure type and range

Battery pack’s battery level(/EB option)

: 60% or more: 25% or more but less than 60%

: 15% or more but less than 25%

: Less than 15% or 10 V or less

: Displayed when an incompatible battery pack is connected

User unit stringUp to 15 characters can be specified.

Scaled result

Displayed when communication resistance (/DM option) is on

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On a Model with the /R1 OptionUp to seven digits are displayed for values shown on the screen.

Top MenuPress the MENU key to display the top menu.

1.3 Display

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Chapter 2 Measurement Preparation

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2.1 Handling Precautions

Safety PrecautionsIf you are using this instrument for the first time, make sure to thoroughly read the safety precautions given on pages viii to xiv.

Do Not Remove the CaseDo not remove the case from the instrument. Some parts of the instrument use high voltages and are extremely dangerous. For internal inspection and adjustment, contact your nearest YOKOGAWA dealer.

Unplug If Abnormal Behavior OccursIf you notice smoke or unusual odors coming from the instrument, immediately turn off the power and unplug the power cord. Then, contact your nearest YOKOGAWA dealer.

Do Not Damage the Power CordNothing should be placed on top of the power cord, and it should be kept away from any heat sources. When removing the plug from the power outlet, do not pull on the cord. Pull from the plug. If the power cord is damaged or if you are using the instrument in a location where the power supply specifications are different, purchase a power cord that matches the specifications of the region that the instrument will be used in.

Operating Environment and ConditionsThis instrument complies with the EMC standard under specific operating environment and operating conditions. If the installation, wiring, and so on are not appropriate, the compliance conditions of the EMC standard may not be met. In such cases, the user will be required to take appropriate measures.

General Handling PrecautionsDo Not Place Objects on Top of the InstrumentNever place other instruments or objects containing water on top of the instrument, otherwise a breakdown may occur.

Do Not Subject the Inputs to Mechanical ShockApplying shock to the input connectors, measurement leads, and the like, can cause electrical noise to enter the instrument through the signal lines.

Do Not Damage the LCDBecause the LCD is very vulnerable and can be easily scratched, do not allow any sharp objects near it. Also it should not be exposed to vibrations and shocks.

Unplug during Extended Non-Use• Unplug the power cord from the outlet.• Remove the battery pack from the main unit.

Connecting a PC to the InstrumentBefore connecting a PC to the USB port for PCs, ground the PC to the same electrical potential as the instrument.


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When Carrying the InstrumentFirst, turn off the item under measurement. Then, turn the instrument’s power switch off. Finally, disconnect the cables, tubes, and the power cord. When carrying the instrument, hold the instrument with both hands, hold the handle on the left side panel, or use the carrying case, sold separately.

WARNING• When you hold or put away the handle, be careful not to get your hand caught between the

handle and the case.• When you carry the instrument, be careful not to get your hand caught between the wall,

installation surface, or other objects and the instrument.

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AVERTISSEMENT• Lorsque vous attrapez ou rabattez la poignée, veillez à ne pas vous coincer la main entre

la poignée et l’instrument.• Lorsque vous déplacez l’instrument, veillez à ne pas vous coincer la main entre l’instrument

et le mur, la surface d’installation ou tout autre objet.

When Cleaning the InstrumentWhen cleaning the case or the operation panel, first remove the power cord from the outlet, and then wipe with a dry, soft, clean cloth. Do not use chemicals such as benzene or thinner. These can cause discoloring and deformation.

CAUTIONOn the -G08 model, you can see the diaphragm for detecting the pressure from the pressure input port on the rear panel. Pay attention not to touch the diaphragm while cleaning.

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ATTENTIONSur le modèle -G08, vous pouvez voir le diaphragme pour détecter la pression à partir de l’orifice d’entrée de pression sur le panneau arrière. Faites attention à ne pas toucher le diaphragme pendant le nettoyage.

Other Precautions• Keep electrically charged objects away from the input terminals. They may damage the internal

circuitry.• Do not cover the case or operation panel with a volatile material or leave rubber or vinyl products in

contact with the case or operation panel for a long time. Doing so may cause discoloration.• Do not use the instrument without the battery pack terminal protection cover.• For the handling precautions of the battery pack, see section 2.4, “Mounting, Removing, and

Charging the Battery Pack (/EB option).”

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Storage PrecautionsStorage LocationAvoid the following kinds of places for storing the instrument:• Where the temperature falls outside the storage temperature and humidity ranges• In direct sunlight or near heat sources• Where an excessive amount of soot, steam, dust, or corrosive gas is present• Where the level of mechanical vibration is high• On an unstable surface• Where an excessive amount of soot, dust, salt, or iron is present


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2.2 Appropriate Locations for Using the Instrument

WARNING• Install the instrument so that you can immediately remove the power cord if an abnormal or

dangerous condition occurs.• Do not use the instrument to measure locations that fall under Measurement Categories II,

III, and IV.

CAUTIONThis instrument is equipped with voltage and current source and measurement features. Do not use the instrument when it is wet. Doing so may damage the instrument.

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AVERTISSEMENT• Installer l’instrument de manière à pourvoir immédiatement le débrancher du secteur en

cas de fonctionnement anormal ou dangereux.• Ne pas utiliser l’instrument pour mesurer des emplacements appartenant aux catégories

de mesure II, III, et IV.

ATTENTIONCet instrument est doté de fonctions de mesure et de source de courant et de tension. Ne pas utiliser l’équipement lorsqu’il est mouillé. Le cas échéant, un endommagement de l’équipement risquerait de se produire.

Installation ConditionsInstall the instrument in a place that meets the following conditions.

Flat, Even SurfaceInstall the instrument on a stable surface that is level in all directions. Pressure may not be measured correctly when the instrument is placed in an unstable or inclined place.

Ambient Temperature, Ambient Humidity, and Altitude at the Location of UseUse the instrument in the following environment.

Ambient temperature 5°C to 40°C (10°C to 35°C when -D00 is selected)Ambient humidity 20% RH to 80% RH; no condensationOperating altitude 2000 m or less

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Note• To ensure high measurement accuracy, operate the instrument within 23°C ± 3°C.• When using the instrument in a place where the ambient humidity is 30% or less, take measures to

prevent static electricity such as using an anti-static mat.• Condensation may occur if the instrument is moved to another place where the ambient temperature or

humidity is higher, or if the temperature changes rapidly. In such cases, allow the instrument adjust to the new environment for at least an hour before using the instrument.

Do not install the instrument in the following places.• Outdoors• In direct sunlight or near heat sources• Where the instrument is exposed to water or other liquids• Where an excessive amount of soot, steam, dust, or corrosive gas is present• Near strong magnetic field sources• Near noise sources, such as high-voltage equipment or power lines• Where the level of mechanical vibration is high• On an unstable surface• In an environment where ignition or explosion may occur, such as in explosive gas

Installation OrientationDesktopInstall the instrument so that it is flat or with the rear panel facing down. After installation, be sure to perform a zero calibration according to section 2.5.

Stand

Feet

Rubber StoppersThe supplied rubber stoppers can be attached to the rear feet at the bottom of the instrument to prevent the instrument from sliding. One set of rubber stoppers (two stoppers) are included in the package.

WARNING• When you put away the stand, be careful not to get your hand caught between the stand

and the instrument.• Handling the stand without firmly supporting the instrument can be dangerous. Please take

the following precautions. • Only handle the stand when the instrument is on a stable surface. • Do not handle the stand when the instrument is tilted.• Do not place the instrument in any position other than those shown in the above figures.

CAUTIONDo not apply excessive force or shock to the stand. Doing so may break the stand support.


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AVERTISSEMENT• Lorsque vous rabattez le support, veillez à ne pas vous coincer la main entre le support et

l’instrument.• Lorsque vous manipulez le support, soutenez toujours l’instrument fermement. Prenez les

précautions suivantes.• Ne manipulez le support que lorsque l’instrument est placé sur une surface stable.• Ne manipulez pas le support lorsque l’instrument est incliné.

• Ne pas placer l’instrument dans des positions autres celles indiquées ci-dessus. Ne pas empiler l’instrument.

ATTENTIONÉvitez d’appliquer une force excessive ou des chocs sur le support. Le système de soutien dusupport peut se casser.

Rack MountingTo rack-mount the instrument, use the separately sold rack mount kit.Item Model NotesRack mount kit 751533-E3 For EIA single mount

751534-E3 For EIA dual mount751533-J3 For JIS single mount751534-J3 For JIS dual mount

An outline of the mounting procedure is given below. For detailed instructions, see the manual that is included with the rack mount kit.

1. Remove the handle from the left side of the instrument.

2. Remove the four feet from the bottom of the instrument.

3. Remove the two plastic rivets and the two seals covering the rack mount attachment holes on each side of the instrument near the front.

4. Place seals over the feet and handle attachment holes.

5. Attach the rack mount kit to the instrument.

6. Mount the instrument on a rack.

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Note• Make sure to provide adequate support from the bottom of the instrument.• Store the removed parts in a safe place.• When rack-mounting the instrument, remove the feet from the rear of the instrument if they are coming

into contact with the rack and are thus preventing you from rack-mounting the instrument. After you have rack-mounted the instrument, re-attach the feet to the rear of the instrument.

• The pressure input port and the like protrude from the front panel and rear panel. Make sure you do not hit it against the rack when mounting the instrument.

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2.3 Connecting the Power Supply and Turning the Power Switch On and Off

Before Connecting the Power SupplyMake sure to follow the warnings below when connecting the power supply. Failure to do so may cause electric shock or damage to the instrument.

WARNING• First, ensure that the source voltage matches the rated supply voltage of the instrument

and that it is within the maximum rated voltage of the power cord you will use. Then connect the power cord.

• Connect the power cord after checking that the power switch of the instrument is turned off.• To prevent electric shock or fire, use the power cord for the instrument.• To prevent electric shock, make sure to ground the instrument. Connect the power cord to

a three-prong power outlet with a protective earth terminal. • Do not use an ungrounded extension cord. If you do, the instrument will not be grounded.• If there is no AC outlet that is compatible with the power cord that you will be using and you

cannot ground the instrument, do not use the instrument.

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AVERTISSEMENT• Assurez-vous que la tension d’alimentation correspond à la tension d’alimentation

nominale de l’appareil et qu’elle ne dépasse pas la plage de tension maximale du cordon d’alimentation à utiliser.

• Brancher le cordon d’alimentation après avoir vérifié que l’interrupteur d’alimentation principal de l’instrument est sur OFF.

• Pour éviter tout risque de choc électrique, utiliser exclusivement le cordon d’alimentation prévu pour cet instrument.

• Pour éviter tout risque de choc électrique, l’instrument doit impérativement être relié à la terre. Brancher le cordon d’alimentation sur une prise de courant à trois plots reliée à la terre.

• Toujours utiliser une rallonge avec broche de mise à la terre, à défaut de quoi l’instrument ne serait pas relié à la terre.

• Si une sortie CA conforme au câble d’alimentation fourni n’est pas disponible et que vous ne pouvez pas relier l’instrument à la terre, ne l’utilisez pas.

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Connecting the Power Cord1. Check that the instrument’s power switch is turned off and that cables are not connected.

2. Connect the power cord plug to the power inlet on the rear panel.

3. Connect the other end of the cord to an outlet that meets the following conditions. Use a grounded three-prong outlet.

ItemRated supply voltage* 100 VAC to 120 VAC, 200 VAC to 240 VACPermitted supply voltage range 90 VAC to 132 VAC, 180 VAC to 264 VACRated supply frequency 50/60 HzPermitted supply frequency range 47 Hz to 63 HzPower consumption During pressure measurement: 25 VA MAX (100 VAC

system), 40 VA MAX (200 VAC system)When charging the battery: 80 VA MAX (100 VAC system), 100 VA MAX (200 VAC system)

* This instrument can use a 100 V or a 200 V power supply. The maximum rated voltage differs according to the type of power cord. Check that the voltage supplied to the instrument is less than or equal to the maximum rated voltage of the power cord that you will be using before use.

MT300Three-prong outlet

Before Turning On the Power, Check That:• The instrument is installed properly. See section 2.2, “Appropriate Locations for Using the

Instrument.”• The power cord is connected properly. See the previous page.

Power Switch LocationThe power switch is located in the lower left of the front panel.

Turning On and Off the Power SwitchThe power switch is a push button. Press the button once to turn the instrument on and press it again to turn the instrument off.

OnOff

MT300


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Operations Performed When the Power Is Turned OnWhen the power switch is turned on, a self-test starts automatically.When the self-test completes successfully, the instrument will be configured with the settings that were in use immediately before the power was turned off.Before using the instrument, make sure that the self-test completes successfully.

Note• After turning the power off, wait at least 10 seconds before you turn it on again.• It may take a few seconds for the startup screen to appear.

When the Power-on Operation Does Not Start Normally• Turn off the power switch, and check the following items.

• Check that the power cord is securely connected.• The correct voltage is coming to the power outlet (see the previous page).

• If the instrument still does not work properly after checking these items, contact your nearest YOKOGAWA.

To Make Accurate MeasurementsAllow the instrument to warm up for at least 5 minutes after turning on the power.

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2.4 Mounting, Removing, and Charging the Battery Pack (/EB option)

WARNING• Turn off the device under measurement and disconnect the measurement leads before

mounting or removing the battery pack cover. Mounting or removing the cover while cables are connected to dangerous electric potential constitutes an electric shock hazard.

• To prevent problems before they occur, periodically inspect the battery pack exterior to confirm that there is no damage such as cracks or deformations and to confirm that there is no fluid leakage.

• Use 739883, the battery pack dedicated to this instrument. Do not use it with other instruments.

• Use this instrument to charge the battery pack. When charging, observe the operating environment given in “General Specifications” of chapter 6. Failure to do so can cause fluid leakage, heating, smoke, explosions, or fire.

• Follow the handling precautions that are included in the battery pack’s user’s manual.• The battery pack is made of lithium-ion cells. When transporting this instrument, remove

the battery pack.• For information on transporting lithium-ion batteries by air, see the requirement for

each packing instruction (lithium battery packing instruction Section II) in the latest IATA Dangerous Goods Regulations.

CAUTIONThe battery pack weights approximately 500 g. Be careful not to drop it on your feet or hands.

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AVERTISSEMENT• Éteindre l’appareil à mesurer et débrancher les fils de mesure avant de charger ou de

retirer le couvercle du pack de batteries. Charger ou retirer le couvercle lorsque les câbles sont connectés à un potentiel électrique dangereux constitue un risque de choc électrique.

• À titre préventif, inspecter régulièrement le boîtier extérieur du pack de batteries afin de déceler tout signe d’endommagement, comme l’apparition de fissures ou de déformations, et vérifier qu’il n’y a aucune fuite.

• Utiliser exclusivement le pack de batteries 739883. Ne pas utiliser ce pack de batteries avec d’autres instruments.

• Utiliser cet instrument pour charger le pack de batteries. Lors de la charge, observer l’environnement opérationnel exposé dans les “Spécifications générales” du chapitre 6, afin d’éviter les risques de fuite, de surchauffe, de fumée, d’explosion du d’incendie. Un adaptateur CA vendu séparément est nécessaire pour charger le pack de batteries.

• Respecter les consignes de manipulation indiquées dans le manuel d’utilisation du pack de batteries.

• Le pack de batteries est composé de cellules au lithium-ion. Lors du transport de cet instrument, retirer le pack de batteries.


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• Pour toute information sur le transport aérien des batteries au lithium-ion, consulter les exigences énoncées dans le Règlement de l’IATA sur le transport des marchandises dangereuses (Section II pour les batteries au lithium).

ATTENTIONLe pack de batteries pèse environ 500 g. Éviter de le laisser tomber sur les doigts ou les orteils.

ProcedureMounting the Battery Pack

1. Remove the seals from the four battery pack attachment holes on the top panel.

2. Remove the two screws holding the battery pack terminal protection cover.

Battery pack terminal protection cover

Screw

Screws Seals on the battery pack attachment holes

3. Flip the cover over, and place it at the location indicated in the following figure. Using a screwdriver, screw the cover at two locations.

Battery pack cushion

Fasten the screw.

Fasten the screw.

Battery pack terminal Battery pack terminal protection cover

4. Align the battery pack terminal with the battery pack cover terminal, and place the battery pack on the battery pack cover. Gently push the battery pack with your fingers so that the terminals become securely connected.

Battery packPress with your finger.

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5. Turn over the battery pack cover.

6. Align the battery pack cover connector to the connector on the instrument, and place the battery pack cover on top of the instrument.

Screw

Screw

7. Check that the battery pack cover is not loose, and then fasten the two attachment screws with a flat-bladed screwdriver.Tightening torque: Approx. 0.6 N•m

NotePressing the battery pack’s TEST button turns on the indicator that shows the battery level; this is not a malfunction. The indicator will turn off after a while.

Over Discharge and Long Periods of Storage• If you do not use the instrument for an extended period of time with the battery pack connected to the

instrument, the battery pack may become over discharged. This shortens the service life of the battery pack. To avoid over discharging, if you will not use the instrument for one week or longer, charge the battery pack, remove it from the instrument, and store the battery pack in a cool place (10°C to 30°C) away from direct sunlight.

• When you store the battery pack for six months or longer, to replenish the power that is lost through self-discharge, recharge the battery using the instrument once every six months.

• Avoid storing the battery pack for an extended period of time when it is fully charged (after it has just been charged) or when it has no power left (when the instrument will not turn on). Storing the battery pack under these conditions will degrade its performance and reduce its longevity. It is best to store the battery pack when it is 40% to 50% charged. This is equivalent to the state the battery is in after you turn off the instrument and charge an empty battery pack for about 2.5 hours at room temperature.

• Charge the battery pack prior to its first use or if it has not been used for an extended period of time.

Removing the Battery Pack1. Loosen the battery pack cover screws with a flat-bladed screwdriver until the screw head

moves up and down.

2. Lift and remove the battery pack cover.

3. Flip the battery pack cover over, with your fingers, lift the side that does not have the battery pack terminal.

4. Pull the battery pack out in the direction of the arrow.

Battery pack

Lift with your finger.


2-14 IM MT300-02EN

5. Attach the battery pack terminal protection cover to the instrument by reversing the procedure for mounting the battery pack.

CAUTIONWhen removing the battery pack cover, lifted straight up. If you swing the battery pack cover sideways or lift it in an angle, the connector will break.

French

ATTENTIONLorsque vous enlevez le couvercle du pack de batteries, soulevez le couvercle vers le haut. Si vous faites pivoter le couvercle du pack de batteries latéralement ou si vous le soulevez en biais, le connecteur se brisera.

Charging the Battery PackTo charge the battery pack, connect the power cable to the instrument with the battery pack mounted. For details on connecting the power cable, see section 2.3.While the battery pack is being charged, the front panel indicator lights. When charging is complete, the front panel indicator turns off.

• The charge time is about 6 hours if the battery is charged with the power turned off.• The charge time may exceed 15 hours if the battery is charged with the power turned on.

CAUTIONIf battery charging does not complete within 6 hours with the power turned off, stop immediately. The battery pack may be malfunctioning. Do not use the battery pack, and contact your nearest YOKOGAWA dealer.

French

ATTENTIONSi la charge des batteries n’est pas terminée au bout de 6 heures alors que l’appareil est éteint, l’interrompre immédiatement. Le pack de batteries peut être défaillant. Ne pas utiliser le pack de batteries et contacter le revendeur YOKOGAWA le plus proche.

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2-15IM MT300-02EN

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2.5 Performing Zero Calibration

Be sure to perform zero calibration (zero CAL) before making a measurement. If the environmental conditions change while you perform continuous measurements, perform zero calibration again.

ProcedureGauge Pressure/Differential Pressure Model

1. Open the input to the atmosphere.

2. Press ZERO CAL. Zero calibration is executed.

Absolute Pressure ModelUse of vacuum pump with a 1 Pa or higher performance.

1. Connect the vacuum pump to the input port, and evacuate the air.Make the tube between the vacuum pump and the instrument as short as possible to increase the degree of vacuum.

2. Press ZERO CAL. The following menu appears.

3. Press the Exec soft key. Zero calibration is executed.

Zero Calibration (with offset) Prepare a reference instrument (vacuum gauge) with the following specifications: 1 kPa abs or less

and 0.2% of reading or better.

1. Connect the reference instrument (vacuum gauge) and the vacuum pump to the input port.

Evacuate the air to 1 kPa abs or less.

2. Press ZERO CAL. The following menu appears.

3. Press the Exec Value soft key. The following screen appears.

4. Use the arrow (▲, ▼, ◄, and ►) keys to enter the input reference value.The unit is kPa.

5. Press ENTER. Zero calibration is executed.Accuracy includes the accuracy of the reference instrument in use.If the difference between the zero CAL value and the default value (factory default) is outside the –1 kPa to +1 kPa range, an error occurs, and zero CAL is not executed.

2.5 Performing Zero Calibration

2-16 IM MT300-02EN

Explanation

Zero Calibration (Zero CAL)Zero calibration corrects the influence caused by changes in the temperature and installation environment in order to perform highly accurate pressure measurements.

Zero Calibration (with offset)This is available only on absolute pressure models.

The difference between the measured value and input reference value when zero CAL is executed is assumed to be the zero CAL value.You can set the input reference value in the range of 0 kPa to 1 kPa.

Note• Zero calibration is effective even if you change the unit of measure.• Perform zero calibration after warm-up.• For liquid measurements, fill the tubing and the instrument (measurement system) with liquid first, and

then perform zero calibration.• If you need to align the pressure reference with a pressure balance or a gauge with a clear pressure

reference, align the height with the reference point of the pressure receiving section shown in the following figure, and then perform zero calibration.

App

rox.

135

mm

1

(App

rox.

147

mm

2)

App

rox.

73

mm

1

(App

rox.

63

mm

2)

Approx. 216 mm1 (Approx. 210 mm2 )Reference point of the pressure receiving section 1: For -G01, -D01, -D03, -D05

2: For -G03, -G05, -G06, -G07, -A03, -A05, -A06

On the models other than -G08

App

rox.

63

mm

Approx. 27 mm

Reference point of the pressure receiving section

On the -G08 model

Reference point of the pressure receiving section is indicated with the line on the right side of the front panel.

Appr

ox. 6

3 m

m

App

rox.

73

mm

Reference point of the pressure receiving section

• On the gauge pressure model, perform a zero calibration each time you change the orientation.• On the absolute pressure model, the zero calibration procedure is complex. If the orientation during zero

calibration is different from the orientation during use, correct the error using a relative value display function or the like.

• The zero CAL value cannot be initialized by initializing the instrument’s settings or with the *RST communication command. For details on initializing the instrument’s settings, see section 3.4.

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2.6 Connecting the Connector to the Pressure Input Port

WARNING• Before applying pressure to the instrument, make sure that tubing is connected properly.

Improper connection may cause gas or liquid to leak, which may in turn cause injury or damage to the instrument.

• After use, be sure to depressurize adequately so that compressed gas or liquid does not burst out. Then remove tubing.

CAUTION• Do not apply pressure exceeding the allowable input pressure to the pressure input port.

If you do, the instrument may malfunction. The allowable input pressure ranges are shown below.Suffix Allowable Input Pressure Range Measurement Display Range-G01 2.7 kPa abs to 50 kPa gauge −12 kPa to 12 kPa-G03 2.7 kPa abs to 500 kPa gauge Up to 240 kPa-G05 2.7 kPa abs to 3000 kPa gauge Up to 1200 kPa-G06 2.7 kPa abs to 4500 kPa gauge Up to 4200 kPa-G07 2.7 kPa abs to 21 MPa gauge Up to 19200 kPa-G08 2.7 kPa abs to 98 MPa gauge Up to 77000 kPa-A03 1 Pa abs to 500 kPa abs Up to 156 kPa abs-A05 1 Pa abs to 3000 kPa abs Up to 840 kPa abs-A06 1 Pa abs to 4500 kPa abs Up to 4200 kPa abs-D00 1 Pa abs to 50 kPa gauge −1.2 kPa to 1.2 kPa-D01 2.7 kPa abs to 50 kPa gauge −12 kPa to 12 kPa-D03 2.7 kPa abs to 500 kPa gauge −156 kPa to 156 kPa-D05 2.7 kPa abs to 1000 kPa gauge −156 kPa to 840 kPa

• When using the -G01, -D00, or -D01 model, make sure that the input pressures below are not exceeded. Exceeding them may destroy the sensor section.

-G01: The difference from the atmospheric pressure is 50 kPa or less. -D00, -D01: The difference between atmospheric pressure and the high side and that

between atmospheric pressure and the low side are both 50 kPa or less, and the difference between the high side and the low side is 50 kPa or less.

• When joining the connector, using a spanner only on the connector side may break the inside of the instrument. Be sure to use another spanner on the cut-out of the input port to tighten the connector.

• “+OverRange” or “-OverRange” is displayed when there is any input over the measurement display range.


2-18 IM MT300-02EN

French

AVERTISSEMENT• Avant de mettre l’instrument sous pression, s’assurer que les tubes sont correctement

connectés. Une connexion incorrecte peut provoquer une fuite de gaz ou de liquide, ce qui à son tour peut être à l’origine de blessures ou d’un endommagement de l’instrument.

• Après utilisation, veiller à effectuer une dépressurisation correcte, de façon à éviter que le gaz ou le liquide comprimé ne jaillisse hors de l’instrument. Retirer ensuite les tubes.

ATTENTION• N’appliquez jamais au port d’entrée une pression dépassant la pression d’entrée autorisée,

sinon cela pourrait endommager l’instrument. Les plages de pression d’entrée admissibles sont indiquées ci-dessous.Suffixe Plage de pression d’entrée autorisée Plage d’affichage de mesure-G01 2.7 kPa abs à 50 kPa jauge −12 kPa à 12 kPa-G03 2.7 kPa abs à 500 kPa jauge Jusqu’à 240 kPa-G05 2.7 kPa abs à 3000 kPa jauge Jusqu’à 1200 kPa-G06 2.7 kPa abs à 4500 kPa jauge Jusqu’à 4200 kPa-G07 2.7 kPa abs à 21 MPa jauge Jusqu’à 19200 kPa-G08 2.7 kPa abs à 98 MPa jauge Jusqu’à 77000 kPa-A03 1 Pa abs à 500 kPa abs Jusqu’à 156 kPa abs-A05 1 Pa abs à 3000 kPa abs Jusqu’à 840 kPa abs-A06 1 Pa abs à 4500 kPa abs Jusqu’à 4200 kPa abs-D00 1 Pa abs à 50 kPa jauge −1.2 kPa à 1.2 kPa-D01 2.7 kPa abs à 50 kPa jauge −12 kPa à 12 kPa-D03 2.7 kPa abs à 500 kPa jauge −156 kPa à 156 kPa-D05 2.7 kPa abs à 1000 kPa jauge −156 kPa à 840 kPa

• Lors de l’utilisation des modèles -G01, -D00 ou -D01, s’assurer que les pressions d’entrée ci-dessous ne sont pas dépassées. Leur dépassement risque de détruire la section du capteur.

-G01: Une différence de pression atmosphérique inférieure à 50 kPa. -D00, -D01: La différence entre la pression atmosphérique et le côté haut et celle

entre la pression atmosphérique et le côté bas sont toutes deux égales ou inférieures à 50 kPa, et la différence entre le côté haut et le côté bas est de 50 kPa ou moins.

• L’utilisation d’une clé uniquement sur le côté connecteur lors du raccordement du connecteur risque de casser l’intérieur de l’instrument. Pour serrer le connecteur, veiller à utiliser une autre clé sur la découpe du port d’entrée.

• «+ OverRange» ou «-OverRange» s’affiche lorsqu’il y a une entrée sur la plage d’affichage des mesures.

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2-19IM MT300-02EN

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ProcedureThis instrument’s pressure input port is Rc1/4 female (input connection section specification -P1), 1/4NPT female (input connection section specification -P2), VCO 1/4 male (input connection section specification -P3), or 1/2NPT female (input connection section specification -P4; only for -G08).

1. For -P1, -P2 and -P4, wrap seal tape around the connector.

For -P3, clean the input port and the O-ring area, and then fasten a VCO body (accessory) to the connector.

2. Using two spanners, attach the connector to the pressure input port of the instrument.

Connector

Tube

Nut

Sleeve

Input port

3. There is an input port on the front panel and another on the rear panel. Cover the unused input port with a plug.This instrument except the 70 MPa model is shipped with the input port on the rear panel covered.The pressure input port on the 70 MPa model (-G08) is only on the rear panel.

Note• Nonflammable, nonexplosive, nontoxic, noncorrosive fluid gases and liquids can be measured.• Affix a label (accessory) indicating the measured fluid near the input port.• There is an input port on the front panel and another on the rear panel. The connection method is the

same for both ports, but they cannot be used simultaneously.• Make the connection secure to prevent the gas or fluid from leaking.• Changing the measurement source from a gas to a liquid or vice versa will cause measurement errors.

Avoid using the instrument in this manner. If you have to change the measurement source, open the plug and completely remove the gas or fluid

remaining in the tube, fill the tube with the new measurement source, and then measure the pressure.• If internal cleaning is necessary, contact your nearest YOKOGAWA dealer (indicate the type of

measurement source).

Notes When Using the 1 kPa Model (-D00), 10 kPa Model (-G01/-D01) On the 1 kPa and 10 kPa models, a slight hysteresis will occur at the zero point when switching

between positive and negative pressure sides. To prevent this from happening, when switching between positive and negative pressure sides,

apply full-scale pressure once, open the input to air, perform a zero calibration, and then make the measurement.

In addition, if you want to make accurate measurements in each positive and negative pressure regions, we recommend performing the same procedure.

Notes when using the 70 MPa model (-G08) The reference pressure chamber for the pressure sensor of the 70 MPa model is sealed without

any opening to allow atmospheric pressure to enter. Therefore, the differences by fluctuations in atmospheric pressure are added to the measured pressure values.

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Chapter 3 Common Operations

3.1 Key Operation and Functions

How to Use Setup Menus That Appear When Keys Are PressedThe operation after you press a key varies depending on the key that you press.

Measure Config menu

Trigger menu

C

ZeroCal menu

F C

G G

A B D

E

A: A related setup menu or dialog box appears when you press the soft key.B: A selection menu appears when you press the soft key. Press the soft key that corresponds to the appropriate setting.C: The selected value switches each time you press the soft key.D: This is displayed when there are several items in the setup menu. Pressing the soft key displays the next page menu.E: Press the soft key to apply the value assigned to the key.F: Pressing the soft key displays a number input box.G: Pressing the soft key executes the operation.

ESC Key OperationIf you press ESC when a setup menu or available options are displayed, the screen returns to the menu level above the current one.

How to Operate ListsUse the arrow (▲ and ▼) keys to move the cursor to the item you want to set. Pressing ESC clears the list from the screen.

3-2 IM DLM3054-02EN

3.2 Entering Values and Strings

ProcedureEntering Values

Use the arrow keys to input values.

1. Use the arrow (◄ and ►) keys to move to the input position.

2. Use the arrow (▲ and ▼) keys to input values.

Displayed when you enter or change a value

3. Press ENTER. The value is confirmed, and the screen returns to the previous menu.

Entering Character StringsUse the arrow keys to input character strings.

1. Use the arrow (▲ and ▼) keys to input characters.

When you press the up (▲) key, a character appears at the input position in the following order. When you press the down (▼) key, the order is reversed.

a to z, A to Z, 0 to 9, /, @, -, blank

Order in which the characters are displayed

2. Use the arrow (◄ and ►) keys to move the input position.

Displayed when you enter or change a character

Deletes the last character

3. Press ENTER. The character string is confirmed, and the screen returns to the previous menu.

Note@ cannot be entered consecutively.

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3.3 Setting the Date and Time

Procedure1. Press MENU to display the top menu.

2. Press the Utility soft key and then the Next soft key. The following menu appears.

3. Press the Time Adjust soft key. The following screen appears.

4. Use the arrow (▲, ▼, ◄, and ►) keys to enter the date and time, and then press ENTER.The value is confirmed, and the screen returns to the previous menu.

3-4 IM DLM3054-02EN

3.4 Initializing Settings


2. Press the Utility soft key. The following menu appears.

3. Press the Initialize soft key. The following screen appears.

4. Pressing the Exec soft key initializes the settings.Press ESC to return to the previous screen.

ExplanationYou can reset the instrument settings to their factory default values. This feature is useful when you want to cancel all the settings that you have entered or when you want to redo measurement from scratch.For details on the items that are initialized, see appendix 1.

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3.5 Initializing the Zero Calibration Value

ProcedureOn gauge pressure models and differential pressure models, the zero CAL value can be initialized.

1. Press MENU to display the top menu.

2. Press the ZeroCal soft key to display the following menu.

3. Press the Initialize Exec soft key to execute the initialization of the zero CAL value.

NoteYou can view the history of zero CAL values by pressing the History soft key. You can check the zero calibration execution dates, zero CAL values, and so on.For details on the zero CAL history, see section 6.1 in the user’s manual (IM MT300-01EN).

Explanation

Zero CAL ValueThe measured value when zero CAL is executed or when the communication command is received is saved as the zero CAL value. The default value is 0 kPa. The zero CAL value is overwritten each time a zero calibration is executed.

Initializing the Zero CAL valueThe zero CAL value is returned to its default value.

3-6 IM DLM3054-02EN

3.6 Displaying and Clearing the Error Log

ProcedureDisplaying the Error Log


2. Press the Utility soft key to display the following menu.

3. Press the Error Log soft key to display the error log.

4. Use the arrow (▲ and ▼) keys to move the cursor.

Clearing the Error Log5. Press the Clear soft key to clear the entire error log.

Press ESC to return to the previous screen.

Explanation

Displaying the Error LogErrors that occurred in the past are listed. The error log displays the following items.• Error number (code)• Error details (message)

• Error message• Date and time• Communication command that caused the error

Note• If an error message or communication command cannot be displayed, “...” Is displayed.• Errors are displayed in order from the oldest. A new error is appended to the error log.• If you restart the instrument, the entire error log will be deleted.

4-1IM MT300-02EN

External Signal I/O

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4.1 External Trigger/Sync Signal Input (TRIG IN/SYNC IN)

CAUTIONOnly apply signals that meet the specifications below. Excessive voltage or the like may damage the instrument.

French

ATTENTIONLes signaux ne correspondant pas aux spécifications risquent d’endommager cet instrument, à cause de facteurs tels qu’une tension excessive.

External Trigger/Sync Signal Input Terminal (TRIG IN/SYNC IN)This is used to make an external signal the trigger source or to perform synchronous measurement on up to four MT300s.

Item SpecificationsInput level HIGH: 2.5 V or more, LOW: 0.8 V or lessInput range -0.3 V to 5.5 VEffective input edge FallingTrigger signal pulse width 10 ms or moreTerminal BNC terminal

For details on the minimum trigger input interval, see section 2.2 in the user’s manual (IM MT300-01EN).

Chapter 4 External Signal I/O

4-2 IM MT300-02EN

4.2 Sync Signal Output (SYNC OUT)

CAUTIONDo not short the SYNC OUT terminal or apply an external voltage to it. If you do, the instrument may malfunction.

French

ATTENTIONNe pas mettre la borne SYNC OUT en court-circuit et ne pas y appliquer une tension externe. Si vous le faites, l’instrument risque de ne pas fonctionner correctement.

Sync Signal Output Terminal (SYNC OUT)This terminal outputs a signal when a trigger occurs.

Item SpecificationsOutput level HIGH: 3.5 V or more, LOW: 0.45 V or lessOutput range -0.3 V to 5.5 VTerminal BNC terminal

4-3IM MT300-02EN

External Signal I/O

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4.3 Voltage Input (V)/Current Input (A) (/DM option)

CAUTIONDo not apply voltage or current exceeding the maximum allowable input. If you do, the instrument may malfunction.

French

ATTENTIONNe pas appliquer de tension ou courant supérieur à la tension d’entrée maximum. Si vous le faites, l’instrument risque de ne pas fonctionner correctement.

Voltage Input Terminal (V)This terminal is used when measuring the voltage with the DMM function.

Item SpecificationsMaximum allowable input ±30 VInput resistance Approx. 1 MΩTerminal Plug-in terminal (Φ4mm banana jack (female type))

Current Input Terminal (A)This terminal is used when measuring the current with the DMM function.

Item SpecificationsMaximum allowable input ±100 mAInput resistance Approx. 10 ΩTerminal Plug-in terminal (Φ4mm banana jack (female type))

4-4 IM MT300-02EN

4.4 24 VDC Output (24 V OUT) (/DM option)

CAUTION• Do not short or apply an external voltage to the 24 VDC output terminal. If you do, the

instrument may malfunction.• If this instrument is run continuously off of the battery pack with the load current through

the 24 VDC output exceeding 20 mA, the battery pack consumption will increase, which will reduce the instrument running time.

French

ATTENTION• Ne pas court-circuiter ou appliquer une tension externe à la borne de sortie de 24 VDC. Si

vous le faites, l’instrument risque de ne pas fonctionner correctement.• Si cet instrument fonctionne en continu hors du pack de batteries avec un courant de

charge sur la sortie de 24 VDC supérieur à 20 mA, la consommation du pack de batteries augmente, ce qui réduit le temps de fonctionnement de l’instrument.

24 VDC Output (24 V OUT)A 24 V DC voltage is output when performing loop current measurement.

Item SpecificationsSupply voltage, current Communication resistance is off: 24 V±1 VDC, 24 mA

Communication resistance is on: 24 V±6 VDC, 20 mATerminal Plug-in terminal (Φ4mm banana jack (female type))

NoteFor details on loop current measurement, see section 4.5 in the user’s manual (IM MT300-01EN).

4-5IM MT300-02EN

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4.5 D/A Output (D/A OUTPUT) (/DA option)

CAUTIONDo not short the D/A output terminal or apply external voltage to it. If you do, the instrument may malfunction.

French

ATTENTIONNe pas court-circuiter la borne de sortie D/A et ne pas y appliquer de tension externe. Si vous le faites, l’instrument risque de ne pas fonctionner correctement.

D/A Output Terminal (D/A OUTPUT)This terminal converts pressure measurement results into voltage (D/A conversion) and outputs it.

Item SpecificationsSource range 2 VDC range, 5 VDC rangeOutput update interval Dynamic mode off: Approx. 2 ms (normal measurement mode)

Approx. 0.25 ms (medium-speed/high-speed measurement mode*)

Dynamic mode on*: Approx. 0.25 msTerminal BNC terminal* Selectable on models with the /F1 option.

NoteFor details on the D/A output, see section 4.2 in the user’s manual (IM MT300-01EN).

4-6 IM MT300-02EN

4.6 Comparator Output (COMP/BUSY OUT) (/DA option)

CAUTIONDo not short or apply an external voltage to the comparator output terminal. If you do, the instrument may malfunction.

French

ATTENTIONNe pas court-circuiter ou appliquer une tension externe à la borne de sortie du comparateur. Si vous le faites, l’instrument risque de ne pas fonctionner correctement.

Comparator Output Terminal (COMP/BUSY OUT)The instrument compares the pressure measurements to the set reference values (upper and lower limits), and depending on the judgment results, output signals through this terminal.

Item SpecificationsOutput signal HI/IN/LO, BUSYOutput level HIGH: 3.5 V or more, LOW: 0.45 V or lessOutput range -0.3 V to 5.5 VTerminal Detachable terminal block

NoteFor details on the comparator output, see section 4.3 in the user’s manual (IM MT300-01EN).

5-1IM MT300-02EN

Chapter 5 Troubleshooting, Maintenance, and Inspection

Troubleshooting, Maintenance, and Inspection

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5.1 If a Problem Occurs

Faults and Corrective Actions• If an error code is displayed on the screen, see section 5.2.• If the instrument does not operate properly even after you have attempted to deal with the

problem according to the instructions in this section, contact your nearest YOKOGAWA dealer.

Problems and Solutions Reference Section

The instrument does not turn on.Securely connect the power cord to the instrument and to the power outlet. 2.3Set the supply voltage and frequency to within the permitted range. 2.3If you are using the battery pack, check that the battery pack is mounted correctly. 2.4If you are using the battery pack, check that the battery pack’s battery level is sufficient. 1.3 and 2.4

The display is odd.Confirm that the ambient temperature and humidity are within their specified ranges. 2.2Connect the connectors securely. 2.6Turn the power off and then on again. 2.3

Keys do not work.Check the REMOTE indicator. If the REMOTE indicator is illuminated, press LOCAL to turn it off.

1.2

Confirm that keys are not locked. 1.1 and 6.6*The measured values are not correct.

Confirm that the ambient temperature and humidity are within their specified ranges. 2.2Allow the instrument to warm up for at least 5 minutes after turning on the power. 2.3Check that the connectors are connected properly. 2.6Cover the unused input port. 1.1 and 2.6Perform a zero calibration. 2.5Check that the plugs are not loose. 2.6

Unable to configure or control the instrument through the communication interface.GP-IB communication

Check to make sure that the GP-IB address setting matches the specifications.7.3*

USB CDC communicationCheck the port number used in the program and the PC’s port number.

9.3*

Ethernet communicationsCheck to make sure that the TCP/IP settings match the specifications.

8.3*

Confirm that the interface meets the electrical and mechanical specifications. 7.1*, 8.1*, and 9.1*

* See IM MT300-01EN, which is included in the accompanying CD.

5-2 IM MT300-02EN

5.2 Error Code Descriptions and Corrective Actions

This section explains error codes that may appear on the front panel.

Error CodesIf any of the following error codes appears, the instrument will beep intermittently. Immediately turn off the power. Servicing is required.Code Description904 The internal power supply is abnormal.

Error Codes That Appear at Power-on or during the Self-testIf any of the following error codes appears, servicing is required. If the error appears at power-on, the instrument beeps.Code Description920 CPU board error.921 CPU board error.922 CPU board error.923 CPU board error.924 CPU board error.952 Internal lithium battery failure, or error detected in stored data.The stored data will be initialized.953 Error detected in zero calibration value or zero calibration history. The zero calibration value will be set to

its default value.954 Error detected in DMM adjustment value or calibration date.955 Error detected in DA adjustment value or calibration date.956 Error detected in the adjustment value of pressure sensor unit or the calibration date.957 Error detected in the adjustment value of pressure calculation unit or the calibration date.958 Failed to detect pressure sensor.959 Hardware error detected in the pressure measurement section.

Warning CodesCode Description Corrective Action Reference

Section35 Detected a current overload. Check the connection conditions or load. 4.5*36 Detected an unexpected battery. Connect a regular battery. 2.4

37 Extremely low battery level. Connect the AC power supply, or turn off the power.

2.3

38 Hardware error detected in the pressure measurement section.

If this display persists, servicing is required. –

39 Hardware error detected in the DMM measurement section.

If this display persists, servicing is required. –

52 Invalid reference pressure value. Check that the reference pressure is entered correctly.

2.6

53 Attempted to perform an operation not allowed in the instrument’s current mode.

Check for errors in the operation. –

54 Data store memory full. Delete unnecessary measurement data. 5.3*55 Creating CSV file. – –56 Overrange or overflow occurred in the

measured pressure value.– –

57 File ID and stored data not found. – –58 Please reboot the instrument. –* See the user’s manual (IM MT300-01EN), which is included in the accompanying CD.

5-3IM MT300-02EN


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5.3 Communication Error Messages

This section explains communication error messages.

• Error messages that are read from a PC such as through the :STATus:ERRor? command are output in English.

• If servicing is required, contact your nearest YOKOGAWA dealer.• The error messages described here are only those that you can read with the :STATus:ERRor?

command from a PC or the like. For other messages, which are displayed on the front panel, see section 5.2.

Communication Syntax Errors (100 to 199)Code Message Corrective Action Page102 Syntax error. A syntax error not covered by error codes 100 to 199. Chapters

10* and 11*

103 Invalid separator. Separate data values with a comma. 10-1*

104 Data type error. Use a correct data type. 10-6* and10-7*

108 Parameter not allowed. Check the number of data values. 10-6* andchapter 11*

109 Missing parameter. Be sure to include all necessary data values. 10-6* andchapter 11*

111 Header separator error. Use a comma to separate each header from its data. 10-1*

112 Program mnemonic too long. Check the command length. chapter 11*

113 Undefined header. Check the header. chapter 11*

114 Header suffix out of range. Check the header. chapter 11*

120 Numeric data error. A value must be specified where the syntax contains <NRf>.

10-6*

123 Exponent too large. Where the syntax contains <NR3>, make the exponent that follows E smaller.

10-6* andchapter 11*

124 Too many digits. Limit numeric values to 255 digits or less. 10-6* andchapter 11*

128 Numeric data not allowed. Use a data type other than <NRf>. 10-6* andchapter 11*

131 Invalid suffix. Check the unit of <Voltage>, <Current>, <Time>, or <Pressure>.

10-6*

134 Suffix too long. Check the unit of <Voltage>, <Current>, <Time>, or <Pressure>.

10-6*

138 Suffix not allowed. Only the following units can be used: <Voltage>, <Current>, <Time>, <Pressure>.

10-6*

141 Invalid character data. Be sure to select one of the listed choices when the syntax contains {...|...|...}.

Chapters 10* and 11*

144 Character data too long. Check the spelling of the strings when the syntax contains {...|...|...}.

Chapter 11*

148 Character data not allowed. Use a data type other than {...|...|...}. Chapter 11*

150 String data error. Enclose parameters with single or double quotation marks where the syntax contains <String>.

10-7*

151 Invalid string data. The <String> is either too long, or it contains an unusable character.

Chapter 11*

158 String data not allowed. Use a data type other than <String>. Chapter 11*

161 Invalid block data. <Block data> cannot be used. 10-7* andChapter 11*

168 Block data not allowed. <Block data> cannot be used. 10-7*

171 Missing Right Mathematical operations cannot be used. —172 Invalid expression. Mathematical operations cannot be used. Chapter 11*

178 Expression data not allowed. Mathematical operations cannot be used. Chapter 11*

181 Invalid outside macro definition. The instrument does not support the IEEE 488.2 macro specifications.

—

* See the user’s manual (IM MT300-01EN), which is included in the accompanying CD.

5-4 IM MT300-02EN

Communication Execution Errors (200 to 299)Code Message Corrective Action Page203 Command protected See “Adjustment and Calibration” in section 5.8. 5-12221 Setting conflict. Check settings that are related to each other. Chapter 11*

222 Data out of range. Check the ranges of the settings. Chapter 11*

223 Too much data. Check data byte lengths. Chapter 11*

224 Illegal parameter value. Check the ranges of the settings. Chapter 11*

225 OverFlow. Keep program messages to 1024 bytes or less in length, including <PMT>.

10-2*

226 Out Of Memory. Keep program messages to 1024 bytes or less in length, including <PMT>.

10-2*

241 Hardware missing. Check that the specified options are all installed. —260 Expression error. Mathematical operations cannot be used. —270 Macro error. The instrument does not support the IEEE 488.2 macro

specifications.—

272 Macro execution error. The instrument does not support the IEEE 488.2 macro specifications.

—

273 Illegal macro label. The instrument does not support the IEEE 488.2 macro specifications.

—

275 Macro definition too long. The instrument does not support the IEEE 488.2 macro specifications.

—

276 Macro recursion error. The instrument does not support the IEEE 488.2 macro specifications.

—

277 Macro redefinition not allowed. The instrument does not support the IEEE 488.2 macro specifications.

—

278 Macro header not found. The instrument does not support the IEEE 488.2 macro specifications.

—


System Communication Errors (300 and 399)Code Message Corrective Action Page300 Communication device-specific error. Servicing is required. —399 Fatal error in the communication driver. Servicing is required. —


5-5IM MT300-02EN


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Communication Query Errors (400 to 499)Code Message Corrective Action Page410 Query INTERRUPTED. Check the transmission and reception order. 10-2*

420 Query UNTERMINATED. Check the transmission and reception order. 10-2*

430 Query DEADLOCKED. Keep program messages to 1024 bytes or less in length, including <PMT>.

10-2*

440 Query UNTERMINATED after indefinite response. Do not write a query after *IDN? or *OPT?. —


Communication Warnings (50)Code Message Corrective Action Page50 *OPC/? exists in message. Write *OPC or *OPC? at the end of program messages. —

Other Errors (350)Code Message Corrective Action Page350 Queue overflow. Read the error queue. 12-6*


NoteCode 350 occurs when the error queue overflows.

Execution Errors (800 to 899)Code Message Corrective Action Page800 Illegal date-time. Set the values correctly. 3-3802 Invalid command. The command cannot be executed in user adjustment

mode.—


System Errors (900/999)Code Message Corrective Action Page911 to 999

CPU board error. For details about the message and corrective action, see section 5.2.

5-2


5-6 IM MT300-02EN

5.4 Viewing System Information (Overview)

ProcedureViewing System Information


2. Press the Utility soft key and then the Next soft key. The following menu appears.

3. Press the Overview soft key to display the Overview menu.

4. Press the soft key for the information you want to view.

Displaying Text in the Model InformationYou can display text of your choice in User Memo of the model information. Up to 15 characters can be specified.


2. Press the Utility soft key, the Next soft key, and then the Next soft key. The following menu appears.

3. Press the Maintenance soft key to display the Maintenance menu.

4. Press the User Memo soft key. The following menu appears.

5. Use the arrow (▲, ▼, ◄, and ►) keys to enter the characters, and then press ENTER.For details on the type of characters that can be entered, see section 3.2.

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ExplanationModel information (Model Info), version information (Version Info), communication information (Remote Info), calibration date information (Cal Info), and option information (Option Info) can be displayed.

Model Information (Model Info)

Displayed InformationModel The model numberSerial No The serial number (instrument number)MAC Address The MAC addressSensor Range The sensor rangeSensor Position The reference point of the pressure receiving section

when the sensor is installed horizontallyFor details, see section 2.5.

User Memo User notes

Version Information (Version Info)

Displayed InformationFirmware Version The firmware version and link timeBoot Version The boot versionCounter Version The counter versionDMM Version* The Version of the DMM functionFPGA Version The FPGA versionHardware Version The hardware version

* Displayed on models with the /DM option.


5-8 IM MT300-02EN

Communication Information (Remote Info)

Displayed InformationCommand Type The command typeGPIB Address The GPIB addressUSB Function The USB functionIP Address The IP addressSubnet mask The subnet maskDefault Geteway The default gateway

Calibration Date Information (Cal Info)This screen shows the last date pressure, DMM function (/DM option), and D/A output (/DA option) were calibrated. When you press the Detail soft key, the date the instrument was calibrated at Yokogawa (Factory Calibration Date) and the date you calibrated the instrument (User Calibration Date) are shown.

Last Calibration Date (Latest)

Detailed Display of the Last Calibration Date (Detail)

NoteFor details on how to enter the user calibration date, see section 5.8.


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Option Information (Option Info)

Displayed InformationDMM Function [/DM] DMM function and 24 VDC output availability (yes/no)D/A,Comparator Output [/DA] D/A output and comparator output availability (yes/no)High Speed Measure [/F1] Measurement mode switching function availability (yes/no)Display Resolution 1 Digit Up [/R1] One additional display resolution digit function availability

(yes/no)


5-10 IM MT300-02EN

5.5 Carrying Out Self-Tests




4. Press the Selftest soft key. The following screen appears.

5. Press the Exec soft key to start the self-test.

Press ESC to return to the previous screen.

ExplanationYou can perform the following tests.• Internal circuit• Pressure sensor• SUM check on the DMM board correction value (on models with the /DM option)• SUM check on the D/A board correction value (on models with the /DA option)

A self-test is also performed automatically when the power is turned on.You can also execute a self-test with a communication command.

If an Error Occurs during a Self-TestExecute the self-test again. If an error occurs even after you perform self-tests numerous times, contact your nearest YOKOGAWA dealer.

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5.6 Power Supply Fuse

Because the power supply fuse used by this instrument is inside the case, you cannot replace it yourself. If you believe that the power supply fuse inside the case has blown, contact your nearest YOKOGAWA dealer.

5.7 Recommended Part Replacement

The life and replacement period for expendable items varies depending on the conditions of use. Refer to the table below as a general guideline.For part replacement and purchase, contact your nearest YOKOGAWA dealer.

Parts with Limited Service LifePart Name Service LifeBattery pack Number of charges/discharges approx. 300 timesLCD panel Approx. 50000 hours for the backlight brightness to become half the initial brightness

Consumable Parts We recommend replacing them at the following intervals.

Part Name Service LifeBackup battery (lithium battery) 5 years

5-12 IM MT300-02EN

5.8 Adjustment and Calibration

AdjustmentContact your nearest YOKOGAWA dealer to have your instrument adjusted.You can also make adjustments to the instrument. Have a qualified engineer adjust the instrument at a facility with sufficient precision. A manual explaining the adjustment procedure of the instrument is available for downloading from the following webpage. To download the information, you need to register.http://www.yokogawa.com/jp-ymi/tm/Bu/MT300/

CalibrationWe recommend that you calibrate the instrument once a year to check its accuracy. Contact your nearest YOKOGAWA dealer to have your instrument calibrated.

Calibrating the Pressure Measurement FunctionThe word calibration as used in this document refers to finding the relationship between the value indicated by the measuring instrument and that indicated by the standard.This instrument is a high precision instrument. We recommend that you calibrate it once a year. When calibrating, you need to carefully consider the pressure standard to use and the measurement environment.Use a pressure standard with a clear traceability to national standards and an accuracy better than ± 0.01%.If you are using a pressure balance as a standard, carefully consider matters regarding the use of a pressure balance (corrections for gravity at the measurement point, mass of the weight, buoyancy in air, and the like, temperature coefficient, measurement temperature, etc.), and calibrate by applying accurate pressure.YOKOGAWA performs accurate calibration according to your request. We recommend that you ask your nearest YOKOGAWA dealer to have your instrument calibrated.

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5.8 Adjustment and Calibration

ProcedureIf you are calibrating the instrument, enter the calibration date.

Entering the User Calibration Date1. Press MENU to display the top menu.



4. Press the Calibration Date soft key. The following menu appears.

5. Press the Pressure Cal. Date soft key. The following screen appears.

6. Use the arrow (▲, ▼, ◄, and ►) keys to enter the date, and then press ENTER.

7. When you calibrate the DMM function (/DM option) or D/A output (/DA option), press the DMM Cal. Date or D/A Cal. Date soft key, and enter the calibration date, in the same manner as Pressure Cal. Date.

6-1IM MT300-02EN

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6.1 Pressure Measurement Specifications

MT300-G01Item SpecificationsRange 10 kPaPressure type Gauge pressureMeasurement range (Guaranteed Accuracy Range) Positive pressure: 0 kPa to 10 kPa, negative pressure: –10 kPa to 0 kPaMeasurement display range —12 kPa to 12 kPaDisplay resolution 0.0001 kPa, 0.00001 kPa on models with the /R1 optionAccuracy (1 year)(23°C ± 3°C, after zero calibration)1

Normal measurement mode (measurement integration time 1500 ms or more2)

Positive pressureRelative accuracy3: ±0.01% of full scaleAbsolute accuracy: ±(0.015% of reading + 0.0015 kPa)

Negative pressureRelative accuracy3: ±(0.1% of reading + 0.0050 kPa)Absolute accuracy: ±(0.2% of reading + 0.0100 kPa)

Medium-speed measurement mode4

Add ±0.002 kPa to the accuracy for normal measurement mode

High-speed measurement mode4 Add ±0.006 kPa to the accuracy for normal measurement modeDisplay update interval5

Normal measurement mode 250 msMedium-speed measurement mode4

100 ms

High-speed measurement mode4 100 msResponse time6 Normal measurement mode 2.5 s or less


200 ms or less

High-speed measurement mode4 100 ms or lessAllowable input 2.7 kPa abs to 50 kPa gaugeInfluence of temperature Positive pressure: ±(0.001% of reading + 0.00015 kPa)/°C

Negative pressure: ±(0.001% of reading + 0.00015 kPa)/°CInfluence of positional setup

At 90° forward or backward inclination

Zero point: ±0.01 kPa

At 30° right or left inclination Zero point: ±0.25 kPaWeight Approx. 7.0 kg (main unit only, excluding options)Volume Approx. 12 cm3

Leakage 10-6 Pa•m3/s or lessMeasured fluid Gas and liquid (nonflammable, nonexplosive, nontoxic, noncorrosive fluid)

Substances and mixtures defined in Directive 2014/68/EC Article 13(1)a are excluded.

Measured fluid temperature 5°C to 50°CFluid kinematic viscosity 5×10–6 m2/s or less

1 Zero-point calibration condition: Under atmospheric pressure2 When the measurement integration time is 250 ms, add ±0.0007 kPa to the accuracy.3 A value relative to the YOKOGAWA working standard4 On models with the /F1 option, the measurement mode can be switched between normal, medium speed, and high speed.5 The data output interval through communication is the same as the display update interval.6 Conditions of response time measurement:

• The time from when the change starts to when the value settles within ±1% of the convergence value.• From the full scale value, open the input to the atmosphere (with the input section under no load).• Measure using D/A output.• When the measurement integration time is 1500 ms

Chapter 6 Specifications

6-2 IM MT300-02EN

MT300-G03Item SpecificationsRange 200 kPaPressure type Gauge pressureMeasurement range (Guaranteed Accuracy Range) Positive pressure: 0 kPa to 200 kPa, negative pressure: –80 kPa to 0 kPaMeasurement display range to 240 kPaDisplay resolution 0.001 kPa, 0.0001 kPa on models with the /R1 optionAccuracy (1 year)(23°C ± 3°C, after zero calibration)1


Positive pressureRelative accuracy3:

25 kPa to 200 kPa: ±(0.008% of reading + 0.002 kPa)0 kPa to 25 kPa: ±0.004 kPa

Absolute accuracy:25 kPa to 200 kPa: ±(0.02% of reading)0 kPa to 25 kPa: ±0.005 kPa






100 ms



200 ms or less

High-speed measurement mode4 50 ms or lessAllowable input 2.7 kPa abs to 500 kPa gaugeInfluence of temperature Positive pressure: ±(0.001% of reading + 0.0013 kPa)/°C











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Positive pressureRelative accuracy3: ±(0.01% of reading + 0.03 kPa) or ±0.01% of full

scale, whichever is smallerAbsolute accuracy:

100 kPa to 1000 kPa: ±(0.02% of reading + 0.03 kPa)0 kPa to 100 kPa: ±0.05 kPa




High-speed measurement mode4


Display update interval5


100 ms


100 ms

Response time6 Normal measurement mode 2.5 s or lessMedium-speed measurement mode4

200 ms or less


70 ms or less

Allowable input 2.7 kPa abs to 3000 kPa gaugeInfluence of temperature Positive pressure: ±(0.001% of reading + 0.007 kPa)/°C











6-4 IM MT300-02EN



Positive pressureRelative accuracy3: ±(0.01% of reading + 0.09 kPa)

or ±0.01% of full scale, whichever is smallerAbsolute accuracy: ±(0.02% of reading + 0.10 kPa)








100 ms


100 ms

Response time6 Normal measurement mode 2.5 s or lessMedium-speed measurement mode4

200 ms or less


150 ms or less

Allowable input 2.7 kPa abs to 4500 kPa gaugeInfluence of temperature Positive pressure: ±(0.001% of reading + 0.03 kPa)/°C











6-5IM MT300-02EN

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MT300-G07Item SpecificationsRange 16 MPaPressure type Gauge pressureMeasurement range (Guaranteed Accuracy Range) 0 kPa to 16000 kPaMeasurement display range to 19200 kPaDisplay resolution 0.1 kPa, 0.01 kPa on models with the /R1 optionAccuracy (1 year)(23°C ± 3°C, after zero calibration)1


Relative accuracy3: ±(0.008% of reading + 1.4 kPa) or ±0.01% of full scale, whichever is smaller

Absolute accuracy: ±(0.02% of reading + 1.5 kPa)


Normal measurement mode 250 ms

Response time5 Normal measurement mode 2.5 s or lessAllowable input 2.7 kPa abs to 21 MPa gaugeInfluence of temperature ±(0.001% of reading + 0.16 kPa)/°CInfluence of positional setup







1 Zero-point calibration condition: Under atmospheric pressure2 When the measurement integration time is 250 ms, add ±0.6 kPa to the accuracy.3 A value relative to the YOKOGAWA working standard4 The data output interval through communication is the same as the display update interval.5 Conditions of response time measurement:

• The time from when the change starts to when the value settles within ±1% of the convergence value.• From 3500 kPa, open the input to the atmosphere (with the input section under no load).• Measure using D/A output.• When the measurement integration time is 1500 ms


6-6 IM MT300-02EN

MT300-G08Item SpecificationsRange 70 MPaPressure type Shield gauge pressureMeasurement range (Guaranteed Accuracy Range) 0 kPa to 70000 kPaMeasurement display range to 77000 kPaDisplay resolution 0.1 kPaAccuracy (1 year)(23°C ± 3°C, after zero calibration)1


Relative accuracy3, 4: ±(0.008% of reading + 5.0 kPa) or ±0.01% of full scale, whichever is smaller

Absolute accuracy3: ±(0.02% of reading + 6.0 kPa)



Response time6 Normal measurement mode 2.5 s or lessAllowable input 2.7 kPa abs to 98 MPa gaugeInfluence of temperature ±(0.001% of reading + 0.7 kPa)/°CInfluence of positional setup




Measured fluid Gas and liquid (nonflammable, nonexplosive, nontoxic, noncorrosive fluid) Substances and mixtures defined in Directive 2014/68/EC Article 13(1)a are excluded.


1 Zero-point calibration condition: Under atmospheric pressure2 When the measurement integration time is 250 ms, add ±3.0 kPa to the accuracy.3 Excludes stability of the zero point.4 A value relative to the YOKOGAWA working standard5 The data output interval through communication is the same as the display update interval.6 Conditions of response time measurement:



6-7IM MT300-02EN

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MT300-A03Item SpecificationsRange 130 kPaPressure type Absolute pressureMeasurement range (Guaranteed Accuracy Range) 0 kPa to 130 kPaMeasurement display range to 156 kPaDisplay resolution 0.001 kPa, 0.0001 kPa on models with the /R1 optionAccuracy (1 year)(23°C ± 3°C, after zero calibration)



Absolute accuracy2: ±(0.03% of reading + 0.006 kPa)Medium-speed measurement mode4




100 ms



200 ms or less

High-speed measurement mode4 50 ms or lessAllowable input 1Pa abs to 500kPa absInfluence of temperature ±(0.001% of reading + 0.0013 kPa)/°CInfluence of positional setup



At 30° right or left inclination Zero point: ±0.26 kPaWhen using the stand Zero point: ±0.10 kPa

Weight Approx. 6.0 kg (main unit only)Volume Approx. 12 cm3




1 When the measurement integration time is 250 ms, add ±0.006 kPa to the accuracy.2 Excludes long-term stability of the zero point.3 A value relative to the YOKOGAWA working standard4 On models with the /F1 option, the measurement mode can be switched between normal, medium speed, and high speed.5 The data output interval through communication is the same as the display update interval.6 Conditions of response time measurement:



6-8 IM MT300-02EN








100 ms



200 ms or less

High-speed measurement mode4 70 ms or lessAllowable input 1 Pa abs to 3000 kPa absInfluence of temperature ±(0.001% of reading + 0.007 kPa)/°CInfluence of positional setup











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100 ms



200 ms or less

High-speed measurement mode4 150 ms or lessAllowable input 1 Pa abs to 4500 kPa absInfluence of temperature ±(0.001% of reading + 0.03 kPa)/°CInfluence of positional setup











6-10 IM MT300-02EN

MT300-D00Item SpecificationsRange 1 kPaPressure type Differential pressureMeasurement range (Guaranteed Accuracy Range) 0 kPa to 1 kPa (High input ≥ Low input)Measurement display range —1.2 kPa to 1.2 kPaDisplay resolution 0.00001 kPaAccuracy (1 year)(23°C ± 3°C, after zero calibration)1

Normal measurement mode (measurement integration time 4000 ms 2)

Relative accuracy3: ±(0.01% of reading + 0.00025 kPa)Absolute accuracy: ±(0.02% of reading + 0.00030 kPa)



Response time5 Normal measurement mode 5 s or lessAllowable input 1 Pa abs to 50 kPa gaugeInfluence of static pressure Zero point: ±0.00015 kPa / 50 kPa gaugeInfluence of temperature ±(0.001% of reading + 0.00005 kPa)/°CInfluence of positional setup



At 5° right or left inclination Zero point: ±0.05 kPaWeight Approx. 7.2 kg (main unit only, excluding options)Volume Approx. 12 cm3 (common to High input and Low input)Leakage 10-6 Pa•m3/s or lessMeasured fluid Gas and liquid (nonflammable, nonexplosive, nontoxic, noncorrosive fluid)



1 Zero-point calibration condition: Under atmospheric pressure2 When the measurement integration time is 2500 ms or less, add ±0.00070 kPa to the accuracy.3 A value relative to the YOKOGAWA working standard4 The data output interval through communication is the same as the display update interval.5 Conditions of response time measurement:



6-11IM MT300-02EN

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MT300-D01Item SpecificationsRange 10 kPaPressure type Differential pressureMeasurement range (Guaranteed Accuracy Range) 0 kPa to 10 kPa (High input ≥ Low input)Measurement display range —12 kPa to 12 kPaDisplay resolution 0.0001 kPa, 0.00001 kPa on models with the /R1 optionAccuracy (1 year)(23°C ± 3°C, after zero calibration)1

Normal measurement mode(measurement integration time 1500 ms or more2)

Relative accuracy3: ±0.01% of full scaleAbsolute accuracy: ±(0.015% of reading + 0.0025 kPa)



Response time5 Normal measurement mode 2.5 s or lessAllowable input 2.7 kPa abs to 50 kPa gaugeInfluence of static pressure Zero point: ±0.0005 kPa / 50 kPa gaugeInfluence of temperature ±(0.001% of reading + 0.00015 kPa)/°CInfluence of positional setup









6-12 IM MT300-02EN




Absolute accuracy:25 kPa to 130 kPa: ±(0.02% of reading + 0.013 kPa)0 kPa to 25 kPa: ±0.018 kPa












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Absolute accuracy:100 kPa to 700 kPa: ±(0.02% of reading + 0.10 kPa)0 kPa to 100 kPa: ±0.12 kPa












6-14 IM MT300-02EN

6.2 Voltage Input (V)/Current Input (A) and 24 VDC output Specifications (/DM option)

Item SpecificationsVoltage Input (V)/Current Input (A)

Measurement range

DCV: 5 VDC range, DCA: 20 mADC range

Guaranteed Accuracy Range

DCV: 0 V to ±5.25 V, DCA: 0 mA to ±21 mA

Measurement display range

DCV: 0 V to ±6 V, DCA: 0 mA to ±24 mA

Display resolution

DCV: 0.0001 V, DCA: 0.001 mA

Accuracy (1 year)23°C±3°C

DCV: ±(0.015% of reading + 0.5 mV)DCA: ±(0.015% of reading + 3 µA)

Measurement time

Approx. 300 ms (when AVERAGE OFF)

Response time Approx. 500 ms (when AVERAGE OFF)Allowable input DCV: ±30 V, DCA: ±100 mAInput resistance DCV: Approx. 1 MΩ, DCA: Approx. 10 ΩInfluence of temperature

±(0.01% of reading + 2digits)/10°C

CMRR 100 dB or more (50 Hz/60 Hz, Rs=1 kΩ)NMRR 60 dB or more (50 Hz/60 Hz)Terminal Plug-in terminal (Φ4mm banana jack (female type))

24 VDC output Supply voltage, current

Communication resistance is off: 24 V±1 VDC, 24 mACommunication resistance is on: 24 V±6 VDC, 20 mA

Maximum output current

30 mA (current limit approx. 40 mA)

Load capacitance 0.1 µF or lessCommunication resistance

250 Ω ON/OFF

Terminal Plug-in terminal (Φ4mm banana jack (female type))Rated voltage to ground (between all signal input terminals and ground): 42 Vpeak

6-15IM MT300-02EN

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6.3 D/A output and comparator output Specifications (/DA option)

Item SpecificationsD/A output Source range 2 VDC range, 5 VDC range

Guaranteed Accuracy Range

2 VDC range: 0 V to ±2 V, 5 VDC range: 0 V to ±5 V

Output resolution

16 bit

Output range Approx. ±120% of the rangeOutput accuracy (1 year)(23°C±3°C, when pressure is stable)

When dynamic mode is off: Add ±0.05% of full scale to the pressure accuracy

Dynamic mode on1: ±0.5% of full scale ±0.7% of full scale (when -G01 is selected)

Output update interval

Dynamic mode off: Approx. 2 ms (normal measurement mode) Approx. 0.25 ms (medium-speed/high-speed measurement mode1)

Dynamic mode on1: Approx. 0.25 msResponse time2 Dynamic mode off: Conforms to the pressure measurement specifications

Dynamic mode on1: Conforms to the high-speed mode of pressure measurement specifications

Output resistance

0.1 Ω or less

Influence of temperature

±(0.005% of full scale)/°C

Load resistor 10 kΩ or moreLoad capacitance

0.1 µF or less

Terminal BNC terminalComparator output Output signal HI/IN/LO, BUSY

Output range —0.3 V to 5.5 VOutput level HIGH: 3.5 V or more, LOW: 0.45 V or lessTerminal Detachable terminal block

1 All models with the /F1 option, the dynamic mode can be turned on and off, and the measurement mode can be switched between normal, mid-speed, and high-speed.

2 The time from when the change starts to when the value settles within ±1% of the convergence value.

Rated voltage to ground (between the D/A output terminal and ground): 42 VpeakThe comparator output GND is grounded.

6-16 IM MT300-02EN

6.4 Functional Specifications

Item SpecificationsComparator function Display location In the main LCD

Displayed content HI/IN/LOJudgment target PressureJudgment interval Every trigger

Trigger function Trigger mode Internal trigger, external trigger, sync triggerTrigger source Internal trigger: display update (period: 100 ms/250 ms)

External trigger: TRIG key, external input (TRIG IN/SYNC IN), communication command

Sync trigger: External input (TRIG IN/SYNC IN)Trigger I/O range —0.3 V to 5.5 VTrigger input level HIGH: 2.5 V or more, LOW: 0.8 V or lessEffective trigger input edge FallingTrigger output level HIGH: 3.5 V or more, LOW: 0.45 V or lessTerminal Input (TRIG IN/SYNC IN): BNC,

Output (SYNC OUT): BNC terminalSynchronization Number units that can be

synchronizedUp to four in a daisy chain connection

Synchronization accuracy Trigger delay within 2.5 ms between the reference unit (master unit) and slave units

Data store function Storage mode Auto store, manual storeAuto store acquisition interval Normal measurement mode:

0.25 s/0.5 s/1 s/2 s/5 s/10 s/30 s/60 s /2 min/5 min

Medium-speed/high-speed measurement mode:* 0.1 s/0.5 s/1 s/2 s/5 s/10 s/30 s/60 s /2 min/5 min

Stored data Date/time, pressure measurements, DMM measurements, setting information

Maximum number of data entries per file

10000

Total number of data entries 30000Maximum number of files 200

Correction function Gauge/differential pressure range zero calibration

Zero calibration

Absolute pressure range correction

Absolute pressure zero calibration,absolute pressure zero calibration (with offset)

Relative value display function Measured value as reference, set value as referenceComputation function %ERROR, scaling, leakage testStatistical processing Average, standard deviation, MAX/MIN* On models with the /F1 option, the measurement mode can be switched between normal, medium

speed, and high speed.

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6.5 Communication Specifications

Item SpecificationsUSB PC Connector type USB type B (receptacle)

Electrical and mechanical

USB Rev. 2.0 compliant

Supported transfer modes

HS (High Speed) mode (480 Mbps)FS (Full Speed) mode (12 Mbps)

Supported protocols USB-FUNCTION interfaceUSBTMC-USB488 (USB Test and Measurement Class Ver.1.0)

Virtual COM portCDC (Communication Device Class)

StorageMass storage devices that comply with USB Mass Storage Class Ver. 1.1

ETHERNET Connector type RJ-45 connectorElectrical and mechanical

IEEE 802.3 compliant

Transmission system 100 BASE-TX/10 BASE-TTransfer rate 100 Mbps max.Protocol TCP/IPSupported services DHCP/VXI-11

GP-IB Electrical and mechanical

Complies with IEEE St’d 488-1978

Functional specifications SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, and C0Protocol Complies with IEEE St’d 488.2-1992Address 0 to 30

6-18 IM MT300-02EN

6.6 General Specifications

Item SpecificationsDisplay

Display device 4.3-inch TFT color LCD (480 x 272 dots)The LCD may include a few defective pixels. There may be some pixels on the LCD that never light or are always lit (total number defective pixels 5 or less). These pixels are not defects.

Pressure display digits Six digits max. (number of digits selectable, excluding the minus sign)Seven digits max. (on models with the /R1 option, number of digits selectable, excluding the minus sign)

DMM display digits Five digits (on models with the /DM option, number of digits fixed, excluding the minus sign)

Warm-up time Approx. 5 minOperating temperature and humidity

5°C to 40°C, 20 to 80%RH, no condensation10°C to 35°C, 20 to 80%RH, no condensation (when -D00 is selected)

Operating altitude range 2000 m or lessStorage temperature range –20°C to 60°C RH, no condensationPower supply Dual power supply system with AC and battery pack (739883)1

AC power supply ratingRated supply voltage 100 V AC to 120V AC/200 V AC to 240 V ACPermitted supply voltage range

90 V AC to 132 V AC/180 V AC to 264 V AC

Rated supply frequency 50 Hz/60 HzPermitted supply frequency range

47 Hz to 63 Hz

Battery pack (739883)Battery pack capacity Lithium-ionRunning time Approx. 6 hours with all functions turned onCharge time Approx. 6 hours (when the power is off)Mounting method Battery pack and battery pack cover mounted on top of the instrument

Power consumption During pressure measurement: 25 VA MAX (100 VAC system), 40 VA MAX (200 VAC system)When charging the battery: 80 VA MAX (100 VAC system), 100 VA MAX (200 VAC system)

Insulation resistance 100 MΩ or more at 500 V DC (between the AC power supply and case)Withstand voltage 1500 VAC, at 50 Hz/60 Hz for 1 minute (between the AC power supply and case)

350 VAC, at 50 Hz/60 Hz for 1 minute (between the DMM input terminal/24 VDC output terminal and case)350 VAC, at 50 Hz/60 Hz for 1 minute (between the D/A output terminal and case)

Dimensions Main unit: Approx. 213 mm (W) × 132 mm (H) × 350 mm (D), excluding protrusionsBattery pack cover: Approx. 87 mm (W) × 31 mm (H) × 304 mm (D)

Weight Main unit: See the pressure specifications.Battery pack + battery pack cover: Approx. 720 g

Pressure sensor Silicon resonant sensorPressure sensing element DiaphragmPressure measurement area material

On the models other than -G07 and -G08Diaphragm: Hastelloy C276, measurement chamber flange, internal piping, input port: SUS316, O-ring: fluororubber or neoprene rubber

On the -G07 modelDiaphragm: Hastelloy C276, measurement chamber flange, internal piping, input port: SUS316•fluorine rubber, metal gasket: SUS316L

On the -G08 modelDiaphragm: Hastelloy C276, input port: SUS316

Pressure input port On the models other than -G08Select Rc1/4 female-threaded, 1/4NPT female-threaded, or VCO21/4 male-threaded. Front panel area and rear panel area (simultaneous input not allowed)

On the -G08 model1/2NPT female-threaded, rear panel area

1 Battery pack cover (269918) is required for battery pack operation.2 VCO is a registered trademark of Swagelok Company in the United States. A conversion connector

equivalent to that of Swagelok is included.

6-19IM MT300-02EN

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6.6 General Specifications

Item SpecificationsSafety standards1 Compliant standards

EN 61010-1Overvoltage Category II2Pollution degree 23

EN 61010-2-030Measurement Category Other (O)4

Emissions1 Compliant standardsEN 61326-1 Class AEN 55011 Class A, Group1EN 61000-3-2EN 61000-3-3EMC Regulatory Arrangement in Australia and New Zealand EN 55011 Class A, Group 1Korea Electromagnetic Conformity Standard ( 한국 전자파적합성기준 )This product is classified as Class A (for use in industrial environments). Operation of this product in a residential area may cause radio interference, in which case the user will be required to correct the interference.

Cable conditionsUSB port (USB)

Use a shielded cable that is 3 m in length or less.GP-IB connector (GP-IB)

Use a shielded cable that is 3 m in length or less.Ethernet port (ETHERNET)

Use a category 5 or better Ethernet cable (STP) that is 30 m in length or less.Trigger/sync input input terminal (TRIG IN/SYNC IN)

Use a BNC cable that is 3 m in length or less.Sync output terminal (SYNC OUT)

Use a BNC cable that is 3 m in length or less.DMM/24VOUT terminal (on models with the /DM option)

Use the included measurement lead (366961).D/A output terminal (on models with the /DA option)

Use a BNC cable that is 3 m in length or less.Comparator output terminal (on models with the /DA option)

Use the included terminal plug (A2119JT) and a cable that is 3 m in length or less.Immunity1 Compliant standards

EN 61326-1 Table 2 (for use in industrial locations)Influence in the immunity test environment: Within ±20% of the range settingHowever, the measured values may receive noise effects.

Cable conditionsSame as the emission cable conditions.

Environmental standards1

Compliant standardsEN 50581 Monitoring and control instruments including industrial monitoring and control instruments.

Pressure directive1 Sound Engineering Practice (SEP) as defined in the Pressure Equipment Directive (PED)1 Applies to products with CE marks. For information on products without CE marks, contact your

nearest YOKOGAWA dealer.2 The overvoltage category (installation category) is a value used to define the transient overvoltage

condition and includes the rated impulse withstand voltage. The overvoltage category II applies to electrical equipment that is powered through a fixed installation, such as a switchboard.

3 Pollution Degree applies to the degree of adhesion of a solid, liquid, or gas that deteriorates withstand voltage or surface resistivity. Pollution degree 2 applies to normal indoor atmospheres (with only non-conductive pollution).

4 The measurement category of the instrument signal terminals is Other (O). Do not use it to measure the main power supply or for Measurement Categories II, III, or IV. Measurement category O (Other) applies to measurement of circuits that are not directly connected

to a main power supply. This category applies to measurement of secondary electric circuits in equipment across a transformer. The estimated transient overvoltage that may appear at the instrument’s signal input is 350 V.

Measurement category II applies to measurement of circuits, such as household electric appliances and portable electric tools, that are connected to low-voltage installations.

Measurement category III applies to measurement of facility circuits, such as distribution boards and circuit breakers.

Measurement category IV applies to measurement of power source circuits, such as entrance cables to buildings and cable systems, for low-voltage installations.

6-20 IM MT300-02EN

6.7 External Dimensions

132

2029

Rear view

Unit: mm


On the models other than -G08

On the -G08 model

Absolute Pressure/Gauge Pressure Model

Absolute Pressure/Gauge Pressure Model (/DM)

Absolute Pressure/Gauge Pressure Model


11.5 350 28.5

350

132

20

21313

When the battery pack is mounted

Unless otherwise specified, tolerances are ±3% (however, tolerances are ±0.3 mm when below 10 mm).

App-1IM MT300-02EN

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Appendix

Appendix 1 Factory Default Settings

Item Factory Default Value

Initialized by Setup Initialization or *RST?

Setting Saved When Powered Off?

System setupBEEP On No YesDisplay Brightness 3 No Yes

Range information Off No YesRange information color Black No Yes

Date and time Date 2000/1/1 No YesTime 00:00:00 No Yes

Key lock Off Yes YesCSV file format Period and comma No YesLanguage English No Yes

Communication setupCommand type Nrm No YesHeader of measured value output data* Available No YesStatus byte cause setting* 31 No YesGP-IB Address 1 No YesETHERNET DHCP On No Yes

The IP address 192.168.0.1 No YesSubnet mask 255.255.255.0 No YesGateway address 0.0.0.0 No Yes

USB Operation protocol USB-TMC No YesTerminator CR+LF No Yes

* Valid only when the command type is compatible command

App-2 IM MT300-02EN

Appendix 1 Factory Default Settings

Item Factory Default Value

Initialized by Setup Initialization or *RST?

Setting Saved When Powered Off?

Pressure measurement setupMeasurement interval

Measurement mode Normal Yes YesMeasurement integration time 1500ms* Yes Yes

Trigger Trigger mode Internal trigger Yes YesTrigger delay 0ms Yes YesTrigger LED On Yes Yes

Display Displayed unit kPa Yes YesDisplayed digit masking Off Yes YesHold Off Yes No

Scaling On/Off Off Yes YesInput method Two Yes Yes2-point mode Span upper limit Measurement

rangeYes Yes

Span lower limit 0 Yes YesScale upper limit 1 Yes YesScale lower limit 0 Yes Yes

Direct input mode

A 1 Yes YesB 0 Yes Yes

User unit string “” Yes YesFixed decimal point mode Off Yes YesFixed exponent E+00 Yes Yes

Storage mode Mode Man Yes YesStorage interval 1s Yes YesStorage count 50 Yes YesStart/Stop Stop Yes No

Correction value Zero CAL value 0 No YesAbsolute zero CAL Value - No Yes

Relative value display

On/Off Off Yes NoMode Meas Yes YesReference for manual setting 0 Yes Yes

MAX/MIN function Off Yes NoFunction selection (Off/Statistics/% display (% ERROR display)/Leak test)

Off Yes Yes

Statistics Start/Stop Stop Yes NoPercentage display(% ERROR display)

0% value 0 Yes Yes100% value Measurement

rangeYes Yes

Leak test Start/Stop Stop Yes NoMeasurement time 0:10:00 Yes Yes

D/A outputOn/Off On Yes YesRange 2V Yes YesDynamic mode Off Yes Yes

Comparator outputOn/Off Off Yes YesUpper limit Measurement

rangeYes Yes

Lower limit 0 Yes YesDMM

On/Off Off Yes YesRange 5V Yes YesAveraging On/Off On Yes Yes

24 VDC output On/Off Off Yes NoCommunication resistance

On/Off Off Yes Yes

* 4000 ms for -D00

App-3IM MT300-02EN

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Appendix 2 Additional Explanation for Communication Commands

This section explains the units that can be set using communication commands when the pressure unit suffix code is -U2.

Standard Command:SENSe:UNITFunction Sets or queries the pressure unit.Syntax :SENSe:UNIT {PA|HPA|KPA|MPA|MBAR|BAR|ATM|MMH2O4|MMH2O20|INH2O4|

INH2O20|FTH2O4|FTH2O20|MMHG|INHG|GFCM2|KGFCM2|PSI|TORR}

PA: Pa HPA: hPa KPA: kPa MPA: MPa MBAR: mbar BAR: bar ATM: atm MMH2O4: mmH2O@4°C MMH2O20: mmH2O@20°C INH2O4: inH2O@4°C INH2O20: inH2O@20°C FTH2O4: ftH2O@4°C FTH2O20: ftH2O@20°C MMHG: mmHg INHG: inHg GFCM2: gf/cm2

KGFCM2: kgf/cm2

PSI: psi TORR: TorrExample :SENSE:UNIT KPA

:SENSE:UNIT? -> :SENSE:UNIT KPA

Compatible CommandPU/PU?Function Sets or queries the pressure unit.Syntax PUm<terminator>

PU?<terminator>

m = 1 to 7 1: inH2O@4°C 2: inHg 3: psi 4: kPa 5: kgf/cm2

6: mmH2O@4°C 7: mmHgExample PU4

Description When percentage display or %ERROR display is in use, you cannot set the unit.

Documents

MT300 Digital Manometer Getting Started Guide · Digital Manometer User’s Manual IM MT300-01EN The manual explains all the instrument features. It is included in the accompanying