Balansa Ohaus Ct 1200

8/10/2019 Balansa Ohaus Ct 1200

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CT SERIESCT SERIESCT SERIESCT SERIESCT SERIES

RS-232 INTERFRS-232 INTERFRS-232 INTERFRS-232 INTERFRS-232 INTERFAAAAACECECECECEKITKITKITKITKIT

For use with Models

CT10, CT200, CT600, CT600LCT1200, CT3000L and CT6000

Instruction ManualInstruction ManualInstruction ManualInstruction ManualInstruction Manual

Ohaus Corporation 1989, all rights reservedOhaus Corporation 1989, all rights reservedOhaus Corporation 1989, all rights reservedOhaus Corporation 1989, all rights reservedOhaus Corporation 1989, all rights reserved

WARNING:WARNING:WARNING:WARNING:WARNING:THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIOFREQUENCY ENERGY AND IF NOT INSTALLED AND USED IN ACCORDANCEWITH THE INSTRUCTION MANUAL, MAY CAUSE INTERFERENCE TO RADIOCOMMUNICATIONS. IT HAS BEEN TESTED AND FOUND TO COMPLY WITH CLASSA REQUIREMENTS IN BOTH PART 15 OF FCC RULES AND THE RADIO INTER-FERENCE REGULATION OF THE CANADIAN DOC. THIS EQUIPMENT DOES NOTEXCEED THE LIMITS FOR RADIO NOISE EMISSIONS. OPERATION OF THISEQUIPMENT IN A RESIDENTIAL AREA MAY CAUSE UNACCEPTABLE INTERFER-

ENCE TO RADIO AND TV RECEPTION REQUIRING THE OPERATOR TO TAKEWHATEVER STEPS ARE NECESSARY TO CORRECT THE INTERFERENCE.

LE PRSENT APPAREIL NUMRIQUE NEMET PAS DE BRUITS RADIOLECTRI-QUES DEPASSANT LES LIMITES APPLICABLES AUX APPAREILS NUMRIQUESDE CLASSE A PRESCRITES DANS LE REGLEMENT SUR LE BROUILLAGE RA-DIOLECTRIQUE EDICT PAR LE MINISTERE DES COMMUNICATIONS DU CAN-ADA.


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The CT Series RS-232 Accessory is a bidirectional interface which enables the balanceto communicate with a printer or computer that is equipped with an RS-232 serial port.The Interface assembly is easily installed in the balance and all communicationparameters are configured using the Setup Menu (reference the CT Series Manual).

Before installing the Interface assembly, observe the following:

WARNINGWARNINGWARNINGWARNINGWARNING

To prevent damage to the balance, be certain that the power supply isdisconnected before removing the cover.

Even though the balance may have been switched OFF, voltage is presentinside the balance as long as the power supply is connected.

If the AC Adapter is being used, disconnect it.If batteries are installed, remove them.

INSTALLATIONINSTALLATIONINSTALLATIONINSTALLATIONINSTALLATION

To install the RS-232 Interface Acces-sory, first remove the Pan from the bal-ance, and turn the balance upside down.(Do not remove Pan on CT3000L andCT6000 Models.)

1. The bottom plate is held by fourscrews, one located in each corner.Remove the four screws and lift offthe bottom plate.

NOTE:NOTE:NOTE:NOTE:NOTE:On earlier models the bot-tom plate is held by one screw lo-cated toward the center of the plate.

2. On the rear of the balance, a protec-

tive label is provided which coversthe hole for the 9-pin RS-232 con-nector.

Peel off the label to expose the hole.

3. Place the circuit board and connec-


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tor assembly in the balance so thatthe 9-pin connector fits through thehole.

4. Fasten the assembly using the two

scriptions for the connector.

The balance will not output any informa-tion unless pin 5 (CTS) is held in an ONstate (+3 to +15 VDC). Interfaces notutilizing the CTS handshake may tie pin5 to pin 6 to defeat it.

NOTE:NOTE:NOTE:NOTE:NOTE: This interface does not strictlyadhere to the official RS-232 standard(particularly in the connector used). How-ever, it is compatible with what is com-monplace in the microcomputer indus-try.

screws provided.

5. Slide the ribbon connector onto theedge of the main circuit board asshown in the diagram.

Replace the bottom plate and installthe batteries or AC Adapter. Re-place the pan if it was removed.

9-PIN CONNECTOR9-PIN CONNECTOR9-PIN CONNECTOR9-PIN CONNECTOR9-PIN CONNECTOR

The balance can now be interfaced withother equipment utilizing the 9-pin con-nector which has been installed. Thediagram shows the pin-out and pin de-


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SETUPSETUPSETUPSETUPSETUP

Once installation is completed, the interface parameters must be entered using theSetup Menu (reference the CT Series Manual). When the interface is installed in thebalance, the Setup Menu will include an additional item, the Print submenu. Using thePrint submenu to enter the interface parameters includes:

Selecting a Baud Rate Selecting a Data Frame Format (data bits, parity, stop bits) Selecting the Auto Print Interval (1-99 seconds) Enabling or Disabling the Print Stable Data Only feature

To begin, access the Setup Menu as explained in the CT Series manual, then repeatedlypress the UNITS button until Print is displayed. When Print is displayed, press theTARE button to access the Print submenu selections. (On Legal for Trade models, theRE-ZERO button replaces the TARE button.)

The first item displayed will be the RS-232 parameter selection. Pressing the UNITSbutton repeatedly enables you to scroll through the Print submenu. Pressing the TAREbutton lets you access the displayed selection.

r S232 - Used to select baud rate and data frame

A .P. - Used to set Auto Print Interval (1-99 seconds) PrintSubmenu S tb. - Used to set Stable Data Only feature ON or OFF

E nd - Used to exit Print submenu and return to main Setup Menu

Use the following procedures to set each of these parameters.

RS-232 ParametersRS-232 ParametersRS-232 ParametersRS-232 ParametersRS-232 Parameters

This selection is used to select the desired baud rate and data frame format. There arefive available baud rates (300, 1200, 2400, 4800, 9600), and nine data frame formats(numbered 0-8) to choose from. Use the following procedure to set these parameters:

1. Access the RS-232 Parameters se-lection. When the TARE button is

released, the current baud rate set-ting will be displayed. The baud rateis preceded by the letter b.

2. Press the UNITS button repeatedlyuntil the desired baud rate is dis-played. Then press the TARE buttonto select the displayed baud rate.


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Fr. 0Fr. 0Fr. 0Fr. 0Fr. 0 START 7 STOP STOPBIT DATA BITS BIT BIT

Fr. 1Fr. 1Fr. 1Fr. 1Fr. 1 START 7 EVEN STOPBIT DATA BITS PARITY BIT BIT

Fr. 2Fr. 2Fr. 2Fr. 2Fr. 2 START 7 ODD STOPBIT DATA BITS PARITY BIT BIT

Fr. 3Fr. 3Fr. 3Fr. 3Fr. 3 START 7 EVEN STOP STOPBIT DATA BITS PARITY BIT BIT BIT

Fr. 4Fr. 4Fr. 4Fr. 4Fr. 4 START 7 ODD STOP STOPBIT DATA BITS PARITY BIT BIT BIT

Fr. 5Fr. 5Fr. 5Fr. 5Fr. 5 START 8 STOPBIT DATA BITS BIT

Fr. 6Fr. 6Fr. 6Fr. 6Fr. 6 START 8 ODD STOPBIT DATA BITS PARITY BIT BIT

Fr. 7Fr. 7Fr. 7Fr. 7Fr. 7 START 8 EVEN STOPBIT DATA BITS PARITY BIT BIT

Fr. 8Fr. 8Fr. 8Fr. 8Fr. 8 START 8 STOP STOPBIT DATA BITS BIT BIT

Press the UNITS button repeatedly until the desired frame number is displayed.Then press the TARE button to select the displayed frame number.

When the TARE button is released, rS232 will be displayed and the Print submenuis returned.

3. Once the baud rate is entered, theDisplay will change to show the cur-rent frame format selection. This willbe the letters Fr followed by a number from 0 to 8.

The number corresponds to one of the following data frames:


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Auto Print IntervalAuto Print IntervalAuto Print IntervalAuto Print IntervalAuto Print Interval

The Auto Print feature enables the scale to automatically send displayed data to a printeror computer, at a specified time interval. The interval can be set from 1 to 99 seconds.Setting the interval to 0 disables the Auto Print feature. Use the following procedure toset the Auto Print interval:

1. Access the Auto Print selection. When the TARE button is released, the currentAuto Print interval will be displayed. The number is preceded by the letters A.P.

2. Press the UNITS button repeatedly to increase the setting. Holding the UNITSbutton down will cause the value to increase more rapidly.

3. Press the TARE button to select the displayed value.

When the TARE button is released, A.P. will be displayed and the Print submenuwill be returned.

Print Stable Data OnlyPrint Stable Data OnlyPrint Stable Data OnlyPrint Stable Data OnlyPrint Stable Data Only

When enabled, this feature restricts the balance to sending only stable display datawhen requested. (Display data is stable when the Unit Indicator is shown in the Display.)To turn this feature ON or OFF:

1. Access the Stable Data selection. When the TARE button is released, the currentstatus will be displayed.

2. Press the UNITS button to switch the status ON or OFF as desired.

3. Press the TARE button to select the displayed status.

When the TARE button is released, Stb. will be displayed and the Print submenu

will be returned.

NOTE:NOTE:NOTE:NOTE:NOTE:On Legal for Trade models, Stb. does not appear. The feature is always ON.

Exit Print SubmenuExit Print SubmenuExit Print SubmenuExit Print SubmenuExit Print Submenu

When you are finished making your selections, End must be used to exit the Printsubmenu. Use the following procedure:

1. Access the End selection. When the TARE button is released, Print will bedisplayed and the Setup Menu will be returned.

2. Press the UNITS button repeatedly until End is displayed on the Setup Menu.

3. Press the TARE button to exit the Setup Menu and save your selections.


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DIRECT CONNECTION TO A PRINTERDIRECT CONNECTION TO A PRINTERDIRECT CONNECTION TO A PRINTERDIRECT CONNECTION TO A PRINTERDIRECT CONNECTION TO A PRINTER

The balance can be connected directly to a printer using the RS-232 Interface. Displaydata can be sent to the printer in the format shown below, using one of three methods:

using the Auto Print feature using the UNITS button (balances with version 2.0 software or later) using an external print switch

To send data to the printer using the UNITS button, press and hold the button for at leastthree seconds. The word Print will be displayed and the current display data will besent. If only one weighing unit is enabled (in the Setup Menu), the UNITS buttonbecomes a dedicated PRINT button and does not have to be held for three seconds.

An external print switch may be connected between pins 9 (PRINT) and 7 (GND) of the9-pin connector. This must be a normally open switch. When the switch is closed, thecurrent display data will be sent.

CONNECTION TO A COMPUTERCONNECTION TO A COMPUTERCONNECTION TO A COMPUTERCONNECTION TO A COMPUTERCONNECTION TO A COMPUTER

The balance can be connected to a computer using the RS-232 Interface. Thisconfiguration enables full control of balance functions from the computer, except forswitching the scale ON and OFF. The balance will respond to commands sent as ASCIIcharacters followed by a Carriage Return (CR) or Carriage Return Line Feed (CRLF)character. The following table defines the accepted commands. Any other controlcharacters or commands will be ignored.

COMMAND SENTBY COMPUTER DESCRIPTION BALANCE RESPONSE

P Print Display Data The balance responds by sending thedisplayed data in the format illustrated inDIRECT CONNECTION TO PRINTER.This includes Polarity, Displayed Value,Weighing Units, Stability Status followed bya CRLF.

COMMAND SENT

POLARITY

Field is Blank ifpositive.

DISPLAYED VALUE

Number is right justifiedpadded with zeroes.

UNITS

GOZOZTDWT

LBSPCSUSR

CT

STABILITY

Blank if stable.? if unstable.

1 2 3 4 5 6 7 8 9 10 11 12 13 14

X X X . X X Sp X X X Stb. Cr Lf


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BY COMPUTER DESCRIPTION BALANCE RESPONSE

? Print Display Units The balance responds by sending thecurrent unit indicator and stability status inthe following format:

(Field) Units Stability CR(# of Chars.) 3 1 1

M UNITS Button This command has the same effect aspressing the UNITS button on the frontpanel. No data is output.

T TARE Button This command has the same effect as

pressing the TARE button on the frontpanel. No data is output.

E Extended UNITS This command has the same effect asButton pressing and holding the UNITS button on

the front panel.

* L Start Linearity Starts Linearity Calibration procedure (seeLinearity Calibration in CT Series Manual).

* C Start Calibration Starts Span Calibration procedure (seeSpan Calibration in CT Series Manual).

0D Turn OFF 1 Second Disables the 1 second delay the balanceDelay waits before responding to a P command.

When disabled, the balance respondsimmediately.

1D Turn ON 1 Second Enables a 1 second delay in the balancesDelay response to a P command. This isprovided for computers requiring such adelay.

* 0S Turn OFF Disables the Stable Data Only printing"Stable Data Only" feature. When disabled, the balance will

send display data in response to a Pcommand, regardless of the stability status.

* 1S Turn ON Enables the Stable Data Only printing"Stable Data Only" feature. When the feature is enabled, the

balance will only send stable display data inresponse to the P command.

* Does not apply to Legal For Trade models.

COMMAND SENT


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BY COMPUTER DESCRIPTION BALANCE RESPONSE

nnA Set Auto Print Set the Auto Print Interval to nn secondsInterval (nn = 0 to 99). Setting the interval to 00

disables the Auto Print function.

* 0Z Turn OFF Auto Zero Disables the Auto Zero Tracking featureTracking (see Setup Menu in CT Series Manual).

* 1Z Turn ON Auto Zero Enables the Auto Zero Tracking featureTracking (see Setup Menu in CT Series Manual).

** V Print PROM Causes the balance to respond with theRevision Level revision level of the PROM installed in the

balance. Output is in the format: CT V_._.

** N Disable Automatic Permits you to disable the automatic printingError Message of error messages output by the balance.Printing This command is reset on power-off.

** D Revert to Factory Sets all balance menu selections to theDefault Settings following factory defaults:

All available units enabled

Default units = Grams*Auto-Zero Tracking is ON

High Speed Display Update is OFF

*Custom Unit = Carats

*Custom Unit Conversion Factor is set to: 1.0000, LSD = 1, Exponent = 0

Stable Data Only printing is ON

Auto Print feature is OFF

* Does not apply to Legal For Trade models.** Available only on balances with version 2.0 software or later.

RS-232 Error MessagesRS-232 Error MessagesRS-232 Error MessagesRS-232 Error MessagesRS-232 Error Messages

If the balance is in an error condition when a request for output occurs, the current errormessage number (Err0 - Err6) will be sent in the following format:

(Field) Error # CR LF(# of Chars.) 5 1 1


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OPTIONAL ACCESSORIESOPTIONAL ACCESSORIESOPTIONAL ACCESSORIESOPTIONAL ACCESSORIESOPTIONAL ACCESSORIES

OhausPart Number

Interface Cables:Blunt End (User Defined) 90641-01IBM- PC 90641-02Apple IIe 90641-03Epson HX-20 90641-04AppleIIc 90641-05

Apple is a registered trademark of Apple Corporation.IBM is a registered trademark of International Business Machines Corporation.

OHAUS CORP.OHAUS CORP.OHAUS CORP.OHAUS CORP.OHAUS CORP. OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.29 Hanover Road Broad Lane, CottenhamFlorham Park, N.J. 07932 Cambridge CB4 4SWTel: 201-377-9000 ENGLANDTelex: 6853191 OHAUS UW Tel: 0954-51343Fax: 201-593-0359 Telex: 817285 OSCALE G

Fax: 0954-50205

OHAUS is the registered trademark of Ohaus Corporation as are the followingtrademarks: AUTOGRAM , BRAINWEIGH , CENT-O-GRAM , CHECK-O-GRAM ,

CUBE-O-GRAM

, DEC-O-GRAM

, DIAL-O-GRAIN

, DIAL-O-GRAM

, DU-O-MEASURE , GALAXY , LUME-O-GRAM , PORT-O-COUNT , PORT-O-GRAM ,PRACT-O-GRAM , PRIMER , STO-A-WEIGH , TOUCH-N-WEIGH , 5-0-5 , and 10-10 .

P/N 77171-00 R1289


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Instruction Manual

PORTABLEAdvanced

Electronic BalancesCT Series

Ohaus CorporationOhaus CorporationOhaus CorporationOhaus CorporationOhaus Corporation29 Hanover Road

Florham Park NJ

07932-0900


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NOTICE:NOTICE:NOTICE:NOTICE:NOTICE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLYWITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15OF THE FCC RULES.

THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTIONAGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATEDIN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES,AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLEDAND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSEHARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OFTHIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFULINTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO COR-RECT THE INTERFERENCE AT HIS OWN EXPENSE.

THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS A LIMITS FORRADIO NOISE EMISSIONS FROM DIGITAL APPARATUS AS SET OUT IN THEINTERFERENCE-CAUSING EQUIPMENT STANDARD ENTITLED DIGITAL APPA-RATUS, ICES-003 OF THE DEPARTMENT OF COMMUNICATIONS.

CET APPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITSRADIOELECTRIQUES APPLICABLES AUX APPAREILS NUMERIQUES DE CLASSEA PRESCRITES DANS LA NORME SUR LE MATERIEL BROUILLEUR : APPAREILSNUMERIQUES, NMB-003 EDICTEE PAR LE MINISTRE DES COMMUNICATIONS.

Unauthorized changes or modifications to this equipment are not permitted.


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TABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTS

INTRODUCTION.................................................................................................. 5

DESCRIPTION..................................................................................................... 5

FEATURES .......................................................................................................... 6UNPACKING ........................................................................................................ 7

INSTALLATION.................................................................................................... 7

Environment .................................................................................................. 7

Power Options .............................................................................................. 8

Battery Installation ........................................................................................ 8

AC Adapter ................................................................................................... 8

Model CT200 Shipping Bracket .................................................................... 9

Platform Installation ...................................................................................... 9

Weigh Below Hook ...................................................................................... 10

OPERATION ...................................................................................................... 10

Turning the Balance On and Off ................................................................. 10

Checking Calibration ................................................................................... 11

Weighing ..................................................................................................... 11

Taring .......................................................................................................... 12

Parts Counting ............................................................................................ 13

Printing ........................................................................................................ 14

USING MENUS TO CONFIGURE THE BALANCE ........................................... 15

CALIBRATION MENU........................................................................................ 16

Calibration Menu Protection ....................................................................... 16

Calibration Masses ..................................................................................... 16

Span Calibration ......................................................................................... 17

Linearity Calibration .................................................................................... 18

End .............................................................................................................. 18

SETUP MENU .................................................................................................... 20

Accessing the Setup Menu ......................................................................... 21

Reset to Factory Settings ........................................................................... 21

Unit Selection .............................................................................................. 22

Taels ........................................................................................................... 22

Custom Units .............................................................................................. 23


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Custom Units Conversion Factor ................................................................ 24

Example ................................................................................................... 26

Averaging Level .......................................................................................... 27

Stability Range ............................................................................................ 28

Auto-Zero .................................................................................................... 29

Parts Counting Error Level ......................................................................... 30

Auto-Off ....................................................................................................... 31

End .............................................................................................................. 31

CALIBRATION LOCK-OUT PROTECTION....................................................... 32

CARE AND MAINTENANCE ............................................................................. 33

TROUBLESHOOTING ....................................................................................... 33

Error Codes ................................................................................................. 34

SERVICE INFORMATION ................................................................................. 34

PARTS INFORMATION ..................................................................................... 35

REPLACEMENT PARTS ................................................................................... 35

SECURITY ......................................................................................................... 36

ACCESSORIES ................................................................................................. 36

SPECIFICATIONS ............................................................................................. 37

LIMITED WARRANTY ....................................................................................... 38


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INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION

This manual covers installation, operation and troubleshooting for the OHAUS

Portable Advanced Electronic Balances, Models CT10, CT200, CT600, CT1200 andCT6000. To ensure proper operation of the balance, please read this manualcompletely.

DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION

The Ohaus Portable Advanced balances are precision weighing instruments, de-signed to provide years of service with virtually no maintenance. The PortableAdvancedhousing is constructed of a material which is impact resistant, contains aone piece solid-state precision electronics PC board, and a five digit LCD display whichis 0.5 inches in height. All Portable Advancedbalances are initially factory set tomeasure in grams and can be set to measure in other units of measure as desired.Each balance operates through a series of menus which enable precise calibration andthe selection of various parameters which enhance operation. A built in lock switchprevents calibration settings from being changed. Power is supplied through an ACadapter or batteries. Accessories include: an RS232 Interface Kit which allows printingof results through an external computer or printer, security device, calibration masses,scoops and carrying cases. See accessory section.

Portable Advanced Balance


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FEATURES

PortableAdvanced balances contain two display menus which enable you to calibrateand configure the balance for specific operating requirements. When an optionalRS232 Interface is installed, a third menu is available.

CALIBRATIONCALIBRATIONCALIBRATIONCALIBRATIONCALIBRATIONMenu - Allows the balance to be calibrated by using either Span orLinearity calibration methods.

SETUPSETUPSETUPSETUPSETUPMenu - Allows the balance to be set for environmental conditions andcustomized for specific weighing functions.

PRINTPRINTPRINTPRINTPRINTMenu - When an optional RS232 Interface is installed, allows the selectionof parameters under which the balance will interface with a computer or a printer.Instructions for installing and using the interface are provided in a separate manualwhich comes with the accessory.

When the balance is first turned on, it can be used to weigh in grams or tare itemswithout setting the menus. Refer to the individual menus in this manual for detaileddescriptions and procedures for programming.


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UNPACKINGUNPACKINGUNPACKINGUNPACKINGUNPACKING

All Portable Advanced balances are supplied with a weighing platform, AC poweradapter, instruction manual and warranty card. Items checked below are supplied withspecific models as follows:

CT10CT10CT10CT10CT10 CT200CT200CT200CT200CT200 CT600CT600CT600CT600CT600 CT1200CT1200CT1200CT1200CT1200 CT6000CT6000CT6000CT6000CT6000

Calibration MassCalibration MassCalibration MassCalibration MassCalibration Mass Draft ShieldDraft ShieldDraft ShieldDraft ShieldDraft Shield Gem CupGem CupGem CupGem CupGem Cup Weigh Below HookWeigh Below HookWeigh Below HookWeigh Below HookWeigh Below Hook Antistatic TowelettesAntistatic TowelettesAntistatic TowelettesAntistatic TowelettesAntistatic Towelettes ScoopScoopScoopScoopScoop Hex KeyHex KeyHex KeyHex KeyHex Key

Carefully unpack all items. The platform for models CT200, CT600 and CT1200 ispacked in the upper portion of the packing material. Be sure to remove the platformand do not discard the packing material. It is recommended to save the packingmaterial and carton for storing and/or transporting the balance. The packing materialmay also be used as an insert for the Vinyl carrying case (optional accessory) listedin the accessory section of this manual.

AC Adapter

Receptacle

Display

Window

Location for optionalsecurity device

Location for optional

RS232 interface

Specifications Label

Calibration MenuLockout Switch

EnvironmentEnvironmentEnvironmentEnvironmentEnvironment

Balance performance can be affected by excessive air currents, corrosives, vibration,temperature or humidity extremes.

DO NOTDO NOTDO NOTDO NOTDO NOTuse the balance:

Next to open windows or doors causing drafts or rapid temperature changes. Near air conditioning or heat vents. Near vibrating, rotating or reciprocating equipment. On an non-level work surface. Near corrosive vapors (example: nitric acid).



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Power OptionsPower OptionsPower OptionsPower OptionsPower Options

The balance can be operated using 8 AA alkaline batteries (not included), or from anyAC electrical outlet by using the AC adapter supplied.

Battery InstallationBattery InstallationBattery InstallationBattery InstallationBattery Installation

1. Remove the platform on all models except the CT6000 (platform is not removableon the CT6000).

2. Turn the balance over.

3. Press the tabs on the battery cover inward and lift the cover off.

4. Remove the battery holder.

5. Install the 8 AA alkaline batteries in the battery holder, orienting the plus (+) andminus (-) ends as indicated on the holder.

6. Replace the battery holder in the compartment. Make sure the snap connector isconnected.

7. Replace the battery cover.

NOTENOTENOTENOTENOTE: The illustration shows a balancewith four feet. Certain models containonly three feet.

Press tabs toremove cover

AC AdapterAC AdapterAC AdapterAC AdapterAC Adapter

Plug the jack from the adapter into thereceptacle located on the right side of thebalance. Plug the adapter into a con-venient AC outlet.


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Model CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping Bracket

The Model CT200 is factory packedwith a shipping bracket which must beremoved before installing the Platform.

1. Using the hex key provided, re-move the screw which securesthe bracket to the transducer.

2. Slide the bracket out to remove it.

BRACKET

CAUTION:CAUTION:CAUTION:CAUTION:CAUTION:DO NOT ATTEMPT TO

REMOVE THE DOWN STOPADJUSTMENT SCREW.

REMOVE SMALLER SCREW

(TURN COUNTERCLOCKWISE)

Platform InstallationPlatform InstallationPlatform InstallationPlatform InstallationPlatform Installation

On the CT10 and CT6000 models, theplatform is installed before shipment(CT10 platform is removable, CT6000platform is not). On all other models,the platform must be installed on top ofthe balance by inserting the shaft of theplatform into the hole in the weighingmechanism.

The CT10 is equipped with a draftshield which fits over the platform.

NOTE:NOTE:NOTE:NOTE:NOTE:The CT10 draft shield and gemcup should be wiped with the antistatictowelette supplied with the balance toeliminate any static buildup.


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Low Battery Indicator

Parts Counting Indicator

Weighing Unit Indicators&

Stability Indicators

Weigh Below HookWeigh Below HookWeigh Below HookWeigh Below HookWeigh Below Hook

A weigh below hook is provided with mod-els CT200, CT600 and CT1200 for belowbalance weighing applications.

To install the hook, turn the balance overholding the platform in place. Screw thehook into the platform shaft from the bot-tom of the balance. Tighten finger-tight.Mount the balance on a suitable surface orstand which permits below balance weigh-ing.

Turning the Balance On and OffTurning the Balance On and OffTurning the Balance On and OffTurning the Balance On and OffTurning the Balance On and Off

With no load on the platform, press .

All segments of the display will turn on,

then the software version is displayed.

The display will momentarily blank and

then indicate zero.

NOTE:NOTE:NOTE:NOTE:NOTE: Allow at least 5 minutes for the

balance to temperature stabilize before

using. If the balance is moved to a differ-

ent temperature environment, allow addi-

tional time to stabilize.

To turn the balance off, press and

hold until OFF is displayed, then

release it.

OPERATIONOPERATIONOPERATIONOPERATIONOPERATION

Weigh Below Hook


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Checking CalibrationChecking CalibrationChecking CalibrationChecking CalibrationChecking Calibration

Before using the balance, its calibrationshould be checked. The balance hasbeen calibrated before shipment, how-ever, calibration is influenced by factors

such as:

Variations in the earths gravitational

field at different latitudes of the world.

Rough handling.

Changes in work location.

Height above sea level.

To check the balances calibration, placea known mass on the center of the plat-form and read the displayed weight.

If the displayed weight differs from theknown mass by more than acceptablelimits, refer to the Calibration Menu andthe Specifications at the rear of the manual.

WeighingWeighingWeighingWeighingWeighing

1. Press to set the display to zero.

2. Place the object to be weighed on the

platform.

3. Wait until the unit indicator appears

before reading the displayed weight.

When the unit indicator appears, the

reading is stable.


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TaringTaringTaringTaringTaring

When weighing samples that must be heldin a container, taring enables the balanceto subtract the weight of the container anddisplay only the net weight of the sample.

1. Press with no load on the plat-

form to set the display to zero.

2. Place the empty container on the plat-

form. Its weight will be displayed.

3. Press . Zero will be displayed

and the containers weight will be stored

in the balances memory.

4. Add the sample to the container and

read its net weight on the display.

NOTE:NOTE:NOTE:NOTE:NOTE:The combined weight of the con-

tainer and the sample must notmust notmust notmust notmust notexceed the

capacity of the balance.

5. When the container and its con-

tents are removed, the container

weight will be displayed as a

negative number.

The tared weight will remain in

memory until is pressed

again or the balance is turned

off.

(Example)


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Parts CountingParts CountingParts CountingParts CountingParts Counting

Parts Counting must be enabled in theSetup menu before using this procedure.The balance will count parts based on the

weight of a reference sample, 5, 10, 20,30, 40 or 50 parts. For optimum results,the parts should be uniform in weight.

1. Repeatedly press untilPC

CON

is displayed.

2. Place a container on the platform,

then press . The balance dis-

playsPC

ADD 5 which is the preset

reference quantity.

3. To change the reference quantity,

repeatedly press until the de-

sired quantity is displayed.

NOTE:NOTE:NOTE:NOTE:NOTE: If you need to exit or restart parts

counting at any time, press and hold

until PCCON is displayed, then release it.

Return to step 2 to restart, or press

for other weighing functions.

4. Add the displayed number of parts to

the container, then press . The

balance will display the current num-

ber of parts.

Parts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory Settings

Parts Counting Mode ........... Disabled

PC Err ......................................... OFF


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NOTENOTENOTENOTENOTE: If PCErr is displayed, the sample is

too small to provide accurate results within

the selected parts counting error level (PC

Err of the Setup menu).

5. Add parts to the container as desired

and read the quantity on the display.

NOTENOTENOTENOTENOTE: The reference quantity will remain

in memory until it is changed or the bal-ance is turned off.

6. To switch between viewing the quan-

tity and weight of the parts,

press .

(Example)

PrintingPrintingPrintingPrintingPrinting

If the optional RS232 interface is installed,

display data can be output from the bal-

ance. The button operates in a

different manner depending upon if more

than one measuring unit is selected.

When only one measuring unit is en-

abled, a short press on will enable

printing when -P- is displayed. A long

press will turn the balance off. When

more than one measuring unit is enabled,

a short press on changes the mea-

suring unit, a one-second press will initate

printing, a long press will turn the balance

off. To print data, press and

hold until -P- is displayed, then

quickly release it.


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USING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCE

The following illustration identifies the items in each menu and the factory defaultsettings are shown in bold type.

SETUP

RESETYes,No

UNIT SELECTIONggggg, oz, oz t, dwt, lb,t, (custom), PC

DFLT/USR

AVERAGING LEVEL

0, 11111, 2

STABILITY.5d, 1d1d1d1d1d, 2d, 5d

AUTO ZEROOFF, .5d.5d.5d.5d.5d, 1d,3d

CUSTOM UNITCONVERSIONFACTOR

Mantissa1.00001.00001.00001.00001.0000Exponent

E0E0E0E0E0,E1, E2,E3,E -3,E -2, E-1

LSD.1d, .2d, .5d, 1d1d1d1d1d,2d, 5d, 10d

PARTS COUNTINGERROR LEVEL

OFFOFFOFFOFFOFF, 1, 2.5, 5

AUTO OFFOFFOFFOFFOFFOFF, 60, 120, 180

END

CAL

SPAN

LINEARITY

END

PRINT

NOTE: Refer to instructionsprovided with the optionalRS232 interface kit.

To access a menu, press and hold until desired menu appears, then release it.

Use these buttons to step through menus and select submenus:

nextselection

selectdisplayed item


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CALIBRATION MENUCALIBRATION MENUCALIBRATION MENUCALIBRATION MENUCALIBRATION MENU

Portable Advanced balances can be calibrated in two ways: Span calibration orLinearity calibration. Span calibration resets the balances weighing range using twopoints: zero and a calibrated mass value at or near the balances capacity. Linearitycalibration minimizes deviation between actual and displayed weights within thebalances weighing range using three points: zero, a calibrated mass value within thebalances weighing range, and a value at or near the balances specified capacity. Theillustration below indicates the sequence in which submenus appear on the Calibrationmenu.

CAL

SPAN

LINEARITY

END

Calibration Menu ProtectionCalibration Menu ProtectionCalibration Menu ProtectionCalibration Menu ProtectionCalibration Menu Protection

The Calibration menu may be locked outto prevent unauthorized access. To lockout calibration menu, refer to the section

titled Calibration Lock-Out Protection.

Calibration MassesCalibration MassesCalibration MassesCalibration MassesCalibration Masses

Before beginning calibration, make surecalibrated masses are on hand. If youbegin calibration and realize masses arenot available, either turn the balance off, orgo through the procedure without masses.

The balance will use previously storedcalibration data. Calibration should beperformed as necessary to ensure accu-rate weighing. Masses required to per-form the procedures are listed in the adja-cent table.

Model Span LinearityModel Span LinearityModel Span LinearityModel Span LinearityModel Span Linearity

Masses Masses Masses Masses Masses Masses Masses Masses Masses Masses

CT10 10g 5g, 10g

CT200 200g 100g, 200gCT600 300g (2) 300gCT1200 1000g 500g, 1000gCT6000 2000g (3) 2000g

1000g 1000g

Required Calibration MassesRequired Calibration MassesRequired Calibration MassesRequired Calibration MassesRequired Calibration Masses


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Span CalibrationSpan CalibrationSpan CalibrationSpan CalibrationSpan Calibration

1. Press and hold until CAL is dis-

played, then release it. Balance will

display SPAN.

2. Press . When released, C 0g

will be displayed indicating that no

mass should be on the platform.

3. Press . The display will show

-C- followed by the value of the mass

which must be placed on the plat-

form.

NOTE:NOTE:NOTE:NOTE:NOTE: Do not disturb the balance when

-C- is displayed. Disturbances will result

in improper calibration.

4. Place the required mass on the plat-

form and press . The display will

show -C- while the balance recali-

brates. When the mass on the plat-

form is displayed along with the cur-

rent unit indicator, the balance is reca-

librated.


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Linearity CalibrationLinearity CalibrationLinearity CalibrationLinearity CalibrationLinearity Calibration

1. Press and hold until CAL is

displayed, then release. Balance will

display SPAN.

2. Press and the display will show

LIN.

3. Press . When released, C 0g

will be displayed, indicating that no

mass should be on the platform.


-C- followed by the value of the mass

which must be placed on the plat-

form.


form.


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-C- momentarily, then C followed by

the next mass to be placed on the

platform. Do not disturb the balance

when -C- is displayed. Disturbances

will result in improper calibration.


form, then press . The display

will show -C- while the balance reca-

librates. When the mass on the plat-

form is displayed along with the cur-

rent unit indicator, the balance is reca-

librated.

EndEndEndEndEnd

If you have entered the Calibration menuand do not wish to calibrate the balance,use END to return to normal weighingoperations.

1. Repeately press until END is

displayed.

2. Press . When released, the bal-

ance will returned to normal weighing

operations.


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SETUP

RESETYes,No

UNIT SELECTIONggggg, oz, oz t, dwt, lb,t, (custom), PC

DFLT/USR

AVERAGING LEVEL0, 11111, 2

STABILITY.5d, 1d1d1d1d1d, 2d, 5d

AUTO ZEROOFF, .5d.5d.5d.5d.5d, 1d,3d

CUSTOM UNIT*CONVERSION

FACTORMantissa1.00001.00001.00001.00001.0000

ExponentE0E0E0E0E0,E1, E2,E3,E -3,E -2, E-1

LSD.1d, .2d, .5d, 1d1d1d1d1d,2d, 5d, 10d

PARTS COUNTING**ERROR LEVEL

OFFOFFOFFOFFOFF, 1, 2.5, 5

AUTO OFFOFFOFFOFFOFFOFF, 60, 120, 180

END

* C.UNIT only appears in menu if custom unit is enabled in SEL submenu.** PC ERR only appears in menu if parts counting is enabled in SEL submenu.

SETUP MENUSETUP MENUSETUP MENUSETUP MENUSETUP MENU

The Setup menu is used to customize the operation of the balance for your specificrequirements. It contains submenus which enable you to turn features on or off, andprogram balance parameters. The illustration below indicates the sequence in which

submenus appear on the Setup menu.


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SETUP MENUSETUP MENUSETUP MENUSETUP MENUSETUP MENU

FACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGS

Unit Selection g

Averaging Level 1Stability 1dAuto Zero .5dConversion Factor

Mantissa 1.0000Exponent 0LSD 1

PC Error Level OFFAuto Off OFF

Accessing the Setup MenuAccessing the Setup MenuAccessing the Setup MenuAccessing the Setup MenuAccessing the Setup Menu

To access the Setup menu, press and hold

until SETUP is displayed, then re-

lease.

To access a submenu:

1. Repeatedly press until the de-

sired submenu is displayed.

2. Press to select the displayed

submenu.

NOTE:NOTE:NOTE:NOTE:NOTE:You must use END to store any

changes you make to the Setup menu.

The following sections describe each itemon the Setup menu in detail.

Reset to Factory SettingsReset to Factory SettingsReset to Factory SettingsReset to Factory SettingsReset to Factory Settings

This submenu enables you to reset allSetup menu selections to the original fac-tory settings outlined in the adjacent table.

To reset to factory settings:

1. Access the Reset submenu.

2. Press to enter RESET.

3. Press repeatedly to change the

setting from YES to NO. Selecting

YES resets the Setup menu to the

original factory settings.

4. Press to accept the displayed

setting.


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Display Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and Modes Indicator Indicator Indicator Indicator Indicator

g gramsgramsgramsgramsgrams oz ounces ozt troy ounces dwt pennyweight lb pounds t taels

custom unit

pc parts counting

Unit SelectionUnit SelectionUnit SelectionUnit SelectionUnit Selection

The Unit Selection submenu permits youto specify which weighing units and oper-ating modes will be enabled for use dur-ing operation. The adjacent table lists the

units and modes available on PortableAdvanced balances.

1. Access the Sel submenu.

2. Press , the display will show

the grams unit indicator (g) along

with the current status (ON/OFF).

3. Press to change the status.


status, when released, the display

will show the next unit indicator along

with the current status.

5. Set each unit or mode ON or OFF as

in steps 3 and 4.

TaelsTaelsTaelsTaelsTaels

If taels are enabled, you will be requiredto choose one of three different taels:Hong Kong, Singapore, or Taiwan.

1. When the display shows TAEL 1,

press to change to another tael

if desired.


tael.

Taiwan

Hong Kong

Singapore


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Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)

Proceed through all of the weighing unitsin the same manner, setting each one asdesired.

Custom UnitsCustom UnitsCustom UnitsCustom UnitsCustom Units

Custom Units can be set to one of thefollowing:

DFLT Causes carats to be used as thecustom unit.

USR Enables you to enter a conversionfactor (to convert grams to someother unit of measure), and displayweight in the desired custom units.The conversion factor is entered inthe C. Unit submenu.


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1. Access the C.Unit submenu.

2. The mantissa of the current conver-sion factor will be displayed. This will

be a number between 0 and 9.9999with the first digit flashing. For con-version factors outside of this range,the exponent will be be used to movethe decimal point.

3. Press to change the value of

the first digit.

4. When the desired value is displayed,

press to accept it and the next

digit will begin flashing.

FLASHING

FLASHING

Custom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion Factor

Conversion Weight Weight Factor x in = in

grams custom unit

Conversion factors are expressed in sci-

entific notation and entered into the bal-ance in three parts:

A number between 0 and 9 to fourdecimal places

A power of 10 called the exponent.

A least significant digit (LSD).

Use the following procedure to enter con-version factors:

When you need to display weight measurements in a weighing unit other than thoseprovided standard with the balance, this feature can be used to create your own customweighing unit. It permits you to enter a conversion factor which the balance will use toconvert grams to the desired unit of measure.

One example is shown at the end of this section. It illustrates how to set the conversionfactors to display weight in Grains.

ExponentExponentExponentExponentExponent

SCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATIONNumberNumberNumberNumberNumber

BetweenBetweenBetweenBetweenBetweenConv.Conv.Conv.Conv.Conv. 0 and0 and0 and0 and0 and PowerPowerPowerPowerPower Man-Man-Man-Man-Man-

FactorFactorFactorFactorFactor 9.99999.99999.99999.99999.9999 of 10of 10of 10of 10of 10 tissatissatissatissatissa Exp.Exp.Exp.Exp.Exp.

1234 = 1.234 x 1000 = 1.234 x 103

123.4 = 1.234 x 100 = 1.234 x 102

12.34 = 1.234 x 10 = 1.234 x 101

1.234 = 1.234 x 1 = 1.234 x 100

.1234 = 1.234 x .1 = 1.234 x 10-1

.01234 = 1.234 x .01 = 1.234 x 10-2

.00123 = 1.23 x .001 = 1.23 x 10-3


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5. Set the value of all digits in the same

manner.

6. After the last digit is entered, the dis-

play will show the current exponent.

The exponent is shown on the display

preceded by the letter E.

There are 7 exponent values which youcan choose from (see table).

7. Press to change the exponent.


exponent. When is released,

the display will show the current least

significant digit.

The least significant digit is the digit in thelast decimal place on the display. Theselection you make causes the balance tocount by 1s, 2s or 5s in this position.There are 7 LSD settings you can choose

from (see table).

9. Press to change the LSD.


LSD. When is released, C.Unit

will be displayed again and theSetup menu will be returned.

11. Proceed to the next item on the Setup

menu or use END to exit the Setup

menu and save your selections.

EXPONENTSEXPONENTSEXPONENTSEXPONENTSEXPONENTSE-3 Moves decimal point 3

places to the left.

E-2 Moves decimal point 2places to the left.

E-1 Moves decimal point 1place to the left.

E0E0E0E0E0 Leaves decimal point inLeaves decimal point inLeaves decimal point inLeaves decimal point inLeaves decimal point in

normal position.normal position.normal position.normal position.normal position.

E1 Moves decimal point 1place to the right.

E2 Moves decimal point 2places to the right.

E3 Moves decimal point 3places to the right.

LSDsLSDsLSDsLSDsLSDs

LSD .1 *Adds one decimal placeand Display counts by 1s.

LSD .2 *Adds one decimal placeand Displayby counts by2s.

LSD.5 *Adds one decimal placedisplay counts by 5s.

LSD 1LSD 1LSD 1LSD 1LSD 1 Display counts by 1s.Display counts by 1s.Display counts by 1s.Display counts by 1s.Display counts by 1s.

(Normal Setting)(Normal Setting)(Normal Setting)(Normal Setting)(Normal Setting)

LSD 2 Display counts by 2s.

LSD 5 Display counts by 5s.

LSD 10 Removes last decimalplace and Display counts

by 1s.

* Sensitivity to vibration is increasedwith this LSD setting.


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IF 1 grain = 0.0647989 grams

THEN 1 gram =

OR 1 gram = 15.43236 grains

10.0647989

15432

Number = 1.5432E = 1 (to move the decimal point

one place to the right)d = 1 (normal setting)

ExampleExampleExampleExampleExample

Converting to GrainsConverting to GrainsConverting to GrainsConverting to GrainsConverting to Grains

1. Determine the number of grains equal

to one gram:

2. Since the balance displays only 5

digits, round the number to the 5 most

significant digits:

3. Using this number, enter the conver-

sion factor:

The display will indicate 1 unit for every

grain placed on the platform.


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Averaging LevelAveraging LevelAveraging LevelAveraging LevelAveraging Level

Averaging level compensates for vibra-tion or excessive air currents. During op-eration, the balance continually takesweight readings from the weighing cell.

Successive readings are then digitally pro-cessed to achieve a stabilized display.Use this submenu to specify how muchprocessing you need to obtain stable re-sults.

NOTENOTENOTENOTENOTE: Averaging level does not affectbalance accuracy.

Select one of three averaging levels usingthe adjacent table as a guide.

To view or change the averaging level:

1. Access the AL submenu.

2. Press to display the current set-

ting.

3. Press to change the setting.


setting, when released, AL will be

displayed again.

AVERAGING LEVELAVERAGING LEVELAVERAGING LEVELAVERAGING LEVELAVERAGING LEVEL

AL 0 Reduced stability, fasteststabilization time.

AL 1AL 1AL 1AL 1AL 1 Normal stability, normalNormal stability, normalNormal stability, normalNormal stability, normalNormal stability, normal

stabilization timestabilization timestabilization timestabilization timestabilization time.....

AL 2 More stability, slowstabilization time.


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Stability RangeStability RangeStability RangeStability RangeStability Range

The stability range specifies how much adisplayed weight may change while thestability indicator (unit indicator) remainsON. When displayed weight changesbeyond the allowable range, the stabilityindicator turns OFF indicating an unstablecondition. Portable Advanced balancespermit you to select one of four stabilityranges (in divisions) as shown in the table.

NOTENOTENOTENOTENOTE: When the RS232 interface is

configured to print stable data only, the

stability range also governs data output.

Displayed data will only be output if it is

within the selected stability range.

To view or change the stability range:

1. Access the Stb submenu to displaythe current setting.


ting.



setting, when released, Stb will be

displayed again.

STABILITY RANGESTABILITY RANGESTABILITY RANGESTABILITY RANGESTABILITY RANGE

.....5d Smallest range: stability indi-cator is ON only when dis-played weight is within .5 divi-sions.

1d1d1d1d1d Normal range.Normal range.Normal range.Normal range.Normal range.2d Increased range.

5d Largest range: stability indi-cator is ON with displayedweight changes up to 5 divi-sions.


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Auto-ZeroAuto-ZeroAuto-ZeroAuto-ZeroAuto-Zero

Auto-Zero minimizes the effects of tem-perature changes and shift on the zeroreading. By defining a threshold level in

divisions, the balance maintains the zerodisplay until the threshold is exceeded.This submenu permits you to select one ofthree threshold levels, or turn the featureOFF. Auto-zero only functions when thedisplay reads zero.

To view or change the auto-zero setting:

1. Access the Auto0 submenu.


ting.



setting, when released, Auto0 will be

displayed again.

AUTO ZEROAUTO ZEROAUTO ZEROAUTO ZEROAUTO ZERO

OFF Turns Auto-Zero OFF.

.5d.5d.5d.5d.5d Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.1d Sets threshold to 1 division.3d Sets threshold to 3 divisions.


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Parts Counting Error LevelParts Counting Error LevelParts Counting Error LevelParts Counting Error LevelParts Counting Error Level

The parts counting error level is based onthe resolution (readability) of the particularmodel balance and sample weight. Theadjacent table lists error levels that youcan choose from.

To view, change or disable the parts count-ing error level:

1. Access the PCErr submenu.


ting.



setting, when released, PCErr will be

displayed again.

ERROR LEVELSERROR LEVELSERROR LEVELSERROR LEVELSERROR LEVELS

OFFOFFOFFOFFOFF Disables error level limits.Disables error level limits.Disables error level limits.Disables error level limits.Disables error level limits.

1 % 1 % acceptable error.

2.5 % 2.5 % acceptable error.

5 % 5.0 % acceptable error.


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TIMER SETTINGSTIMER SETTINGSTIMER SETTINGSTIMER SETTINGSTIMER SETTINGS

OFFOFFOFFOFFOFF Disables feature.Disables feature.Disables feature.Disables feature.Disables feature.

60 Turns off in 60 seconds.



Auto OffAuto OffAuto OffAuto OffAuto Off

Auto Off permits the selection of eitherOFF, 60 seconds, 120 seconds or 180seconds. When this function is selected,the balance will turn off if it is idle for the

selected period of time (60, 120 or 180seconds). This feature is especially usefulwhen the balance is operated from inter-nal batteries.

To view, change or disable the auto offfeature:

1. Access the A. Off submenu.


ting.



setting. When is released,

A. Off will be displayed again.

EndEndEndEndEnd

You must use End to exit the Setup menu.

Changes you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menu

are only stored in memory if you useare only stored in memory if you useare only stored in memory if you useare only stored in memory if you useare only stored in memory if you use

End.End.End.End.End.

To exit the Setup menu and store your

settings, press when END is dis-

played. When is released, the bal-

ance will be returned to normal weighing

operations.


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CALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTION

Access to the Calibration menu can be disabled using the lock out switch located onthe right side of the balance.

1. Turn the balance off and unplug the power cord.

2. Locate the access hole on the right side of the balance where the switch is located

and remove the plug from the hole.

3. Using a small screwdriver, slide the switch to the front of the balance for LOCKED

or towards the rear of the balance for UNLOCKED.

4. Replace the plug in the access hole.

5. Plug in the power cord and turn on the balance.

LOCK OUTSWITCH

UNLOCK

LOCK

LOCK OUT SWITCH ACCESS HOLE


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TROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTING

SYMPTOM

No Display

LO BAT Indicator

- - -

Incorrect WeightReading

Calibration Proce-dure does not work

Unable to displayweight in a particu-lar weighing unit

Unable to accessC. UNIT in Setupmenu to enterConversion Factor

Balance won't storeselections made inSetup menu

PROBABLE CAUSE

Power Adapter notconnected.

Batteries are dead.

Batteries are weak.

Underweight Indicator,

platform may be off ofbalance.

Balance was notrezeroed before weigh-ing.

Balance has not beenproperly calibrated.

Incorrect weights beingused.

Weighing unit notenabled in Setup menu.

Custom Units ( ) notenabled in Setup menu,or not set to USR.

END selection was notused to exit Setup menu.

REMEDY

Connect Power Adapter.

Replace batteries.

Replace batteries.

Replace platform.

Press ON TARE with noweight on the platform,then weigh item.

Recalibrate correctly.

Use correct weights.

Use Unit Selection sub-menu to set desired unitsON (see Setup menu).

Use Unit Selection sub-menu to set Custom Units( ) to USR.

You MUST use END toexit Setup menu and saveselections.

CARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCE

To keep the balance operating properly, the housing and platform should be keptclean and free from foreign material. If necessary, a cloth dampened with a milddetergent may be used. Keep calibration masses in a safe dry place.

Unplug the AC Adapter when not in use. For long term storage, remove the batteries.


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SERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATION

If the Troubleshooting section does not resolve or describe your problem, you will needto contact an authorized Ohaus Service Agent. For Service assistance in the UnitedStates, please call Ohaus Corporation toll-free at (800) 526-0659, an Ohaus ProductService Specialist will be available to help you.

NOTE:NOTE:NOTE:NOTE:NOTE:In New Jersey call (201) 377-9000.

Error CodesError CodesError CodesError CodesError Codes

The following list describes the various error codes which can appear on the displayand the suggested remedy.

Display DescriptionDisplay DescriptionDisplay DescriptionDisplay DescriptionDisplay Description

Err 0Err 0Err 0Err 0Err 0 This indicates a hardware error causing an invalid checksum on calibrationdata. The balance may need recalibration, particularly linearity calibration. Ifthe error persists after recalibration, the balance must be serviced.

Err 1Err 1Err 1Err 1Err 1 Sample being weighed exceeds the capacity of the balance. If error occurswhen the sample is within the balance capacity, balance may be incorrectlycalibrated. An underload such as the platform off of the balance could alsodisplay Err1. Recalibrate the balance.

Err 2Err 2Err 2Err 2Err 2 This indicates a hardware error causing an internal weight signal which is toohigh. The balance must be serviced.

Err 3Err 3Err 3Err 3Err 3 This indicates a hardware error causing an internal weight signal which is toolow. The balance must be serviced.

Error 3 appears on the display as "- - - ". It will be sent over the RS232 interfaceas "Err3" if that accessory is installed.

Err 4Err 4Err 4Err 4Err 4 Incorrect or no calibration weight used when performing calibration procedure.Error will flash momentarily, then balance will use previous calibration data.Recalibrate correctly.

Err 5Err 5Err 5Err 5Err 5 Value is too large to display; exceeds 99999 counts. Possibly caused by aninvalid custom unit conversion factor.

Err 6Err 6Err 6Err 6Err 6 Custom unit conversion factor exponent and LSD choices have placed the

decimal point off of the display. The error flashes momentarily and the newconversion factor will not be accepted.

Err 7Err 7Err 7Err 7Err 7 Power-on load error caused by load on platform during power-up. The displayappears for three seconds and the balance will use previously stored calibrationdata. Remove load from platform and reapply power.

Err 9Err 9Err 9Err 9Err 9 Internal data error. Return balance for servicing.


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PARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATION

If you require replacement parts or would like to purchase accessories, please callOhaus Corporation toll-free at (800) 526-0659, an Ohaus Product Parts Specialist willbe available to help you.

REPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTS

OHAUSPart Number

Span Calibration Masses:10g (CT10) 51014-05200g (CT200) 51025-06300g (CT600) 51035-05

AC Adapters:100/120 V ac US Plug 90524-77230/240 V ac European Plug 90524-75230/240 V ac UK Plug 90524-79240 V ac Australian Plug 90524-76

Platforms:1.75" dia. (CT10) 76680-114" dia. (CT200) 77521-004" dia. (CT200V) 77576-014.75" dia. (CT600) 77261-014.75" dia. (CT600V) 77577-01

4.75" x 6.5" (CT1200) 77467-02

Draft Shield - (CT10) 76681-01

Scoop - (CT200, CT600, CT1200) 4" x 3-1/2", black 4590-30

Gem Cup - (CT10) 76684-00

Antistatic Towelettes - (CT10 and CT200) 76685-00

Weigh Below Hook 5227-04


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SECURITYSECURITYSECURITYSECURITYSECURITY

The balance can be secured to a stationary object using the Security Locking CableAccessory. The locking cable is equipped with a fastener which must be inserted inthe plugged hole in the back of the balance. The cable can be passed through the

fastener and secured to a stationary object.

OHAUSPart Number

RS232 Interface 77172-01

Security Locking Cable 76288-00

Span Calibration Mass Sets for CT1200 and CT6000CT1200 - set includes one 1000g weight 76527-02CT6000 - set includes one 1000g and one 2000g Mass 76527-00

Linearity Calibration Masses:

CT10 5g 53053-00CT200 100g 51015-05CT600 300g (use with 300g span mass 51035-05

provided to make 600g.)CT1200 500g (1000g span mass also required) 51055-06CT6000 2000g - 2 required (1000g and 2000g span 51026-02

masses also required)

Scoops:

4" x 3-1/2", gold 4590-004" x 3-1/2", aluminum 4590-10

1-1/2" x 2", aluminum 5076-00

2-1/4" x 3", gold 5077-00

2-1/4" x 3", black 5077-01

12" x 6", Stainless Steel, footed, (tare 190g), for CT6000 1078-03

12" x 6", Polypropylene, footed, (tare 125g), for CT6000 1101-20

Vinyl Carrying Case (used with original foam packing) 76525-02Deluxe Hard Carrying Case 77256-01

ACCESSORIESACCESSORIESACCESSORIESACCESSORIESACCESSORIES


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MODELMODELMODELMODELMODEL CT10 CT10 CT10 CT10 CT10 CT200CT200CT200CT200CT200 CT600CT600CT600CT600CT600 CT1200CT1200CT1200CT1200CT1200 CT6000CT6000CT6000CT6000CT6000

Capacity x Readability

grams (g) 10 x 0.002 202 x 0.01 602 x 0.1 1210 x 0.1 6010 x 0.5

ounces (oz) 0.35 x 0.0001 7.1 x 0.0005 21.2 x 0.005 42.6 x 0.005 212 x 0.02

ounces troy (oz t) 0.32 x 0.0001 6.5 x 0.0005 19.3 x 0.005 38.9 x 0.005 196 x 0.02

pennyweight (dwt) 6.4 x 0.002 130 x 0.01 387 x 0.1 778 x 0.1 3900 x 0.5

carats (ct) 50 x 0.01 999 x 0.05 3010 x 0.5 6050 x 0.5 30000 x 5

pounds (lb) 0.44 x 0.0001 1.32 x 0.0002 2.6 x 0.0002 13.4 x 0.002

HK taels 0.2671/0.0001 5.396/0.0005 16.08/0.005 32.32/0.005 160.3/0.02

Singapore taels 0.2645/0.0001 5.344/0.0005 15.92/0.005 32.01/0.005 158.7/0.02

Taiwan taels 0.2666/0.0001 5.386/0.0005 16.05/0.005 32.26/0.005 160.0/0.02

Parts counting Standard

Custom unit Standard

Repeatability (std. dev.) (g) 0.002 0.01 0.07 0.1 0.5

Linearity (g) 0.002 0.01 0.1 0.1 0.5

Tare range To capacity by subtraction

Over range capacity Capacity plus 9d

Stabilization time (Sec.) 3 3 2.5 2.5 2.5

Sensitivity drift (%/C) 0.005 0.003 0.01 0.003 0.005

Zero point drift (g/C) 0.002 0.02 0.2 0.2 1

Shift accuracy

(1/2 capacity, 1/2 distance) (g) 0.002 0.01 0.1 0.1 0.5

Operating temperature 50 to 104F/ 10 to 40C

Calibration Auto calibration

Power requirements AC adapter (supplied with balance); 100, 120, 220, 240 V ac, 50/60 Hzor 8 AA Batteries (not included)

Typical battery life 50 hours (without optional RS232 accessory)

Display (in/cm) LCD (0.5/1.3 high)

Platform Size (in/cm) 1.75/4.4 dia. 4/10.2 dia. 4.75/12.1dia. 4.75 x 6.5/ 4.75 x 6.5/ 12.1 x 16.5 12.1 x 16.5

Dimensions(W x H x D) (in/cm) 7.0 x 2.5 x 7.7/17.8 x 6.3 x 19.6

Net weight (lb/kg) 2/0.9 1.5/0.7 1.7/0.8 2.3/1 2.3/1

Shipping weight (lb/kg) 3/2 4/2 4/2 4/2 4/2

SPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONS


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LIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTY

Ohaus products are warranted against defects in materials andworkmanship from the date of delivery through the duration of thewarranty period. During the warranty period Ohaus will repair, or, at itsoption, replace any component(s) that proves to be defective at nocharge, provided that the product is returned, freight prepaid, toOhaus.

This warranty does not apply if the product has been damaged byaccident or misuse, exposed to radioactive or corrosive materials, hasforeign material penetrating to the inside of the product, or as a resultof service or modification by other than Ohaus. In lieu of a properlyreturned warranty registration card, the warranty period shall begin onthe date of shipment to the authorized dealer. No other express or

implied warranty is given by Ohaus Corporation. Ohaus Corporationshall not be liable for any consequential damages.

As warranty legislation differs from state to state and country tocountry, please contact Ohaus or your local Ohaus dealer for furtherdetails.


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Ohaus Corporation29 Hanover Road,

Florham Park, NJ 07932, USATel: (973) 377-9000,Fax: (973) 593-0359

With offices worldwide.

P/N 77145-03 R0698 Ohaus Corporation 1998, all rights reserved.


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NOTICE:NOTICE:NOTICE:NOTICE:NOTICE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FORA CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.

THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFULINTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT.THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND,IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSEHARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT INA RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THEUSER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS A LIMITS FOR RADIO NOISE EMIS-SIONS FROM DIGITAL APPARATUS AS SET OUT IN THE INTERFERENCE-CAUSING EQUIPMENTSTANDARD ENTITLED DIGITAL APPARATUS, ICES-003 OF THE DEPARTMENT OF COMMUNI-

CATIONS.

CET APPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITS RADIOELECTRIQUESAPPLICABLES AUX APPAREILS NUMERIQUES DE CLASSE A PRESCRITES DANS LA NORMESUR LE MATERIEL BROUILLEUR : APPAREILS NUMERIQUES, NMB-003 EDICTEE PAR LEMINISTRE DES COMMUNICATIONS.

Unauthorized changes or modifications to this equipment are not permitted.

CT SERIESCT SERIESCT SERIESCT SERIESCT SERIES

RS232 INTERFRS232 INTERFRS232 INTERFRS232 INTERFRS232 INTERFAAAAACECECECECE

KITKITKITKITKIT

For use with Models

CT10, CT200, CT600, CT600L

CT1200 and CT6000

Instruction ManualInstruction ManualInstruction ManualInstruction ManualInstruction Manual


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INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION

The RS232 Interface Accessory is a bidirectional interface which enables PortableAdvanced Electronic Balances to communicate with a printer or computer equippedwith an RS232 serial port. The interface assembly is easily installed in the balance and

communication parameters are configured using the Print menu after installation.

REMOVE 4 COVER SCREWS

REMOVE LABEL

CONNECTOR FROM RS232 INTERFACE


Use the following procedure to install theRS232 Interface accessory.

CAUTIONCAUTIONCAUTIONCAUTIONCAUTION

TO PREVENT DAMAGE TO THE BAL-ANCE, BE CERTAIN THAT POWER ISDISCONNECTED BEFORE REMOVINGTHE COVER.

1. Disconnect power to the balance.

2. Remove the Platform from the bal-

ance, and turn the balance upsidedown. (Do not remove Platform onCT6000 Models.)

3. Remove batteries if installed.

4. The bottom plate is held by fourscrews, one located in each corner.Remove the four screws and lift off

the bottom plate.

5. At the rear of the balance, a protectivelabel is provided which covers thehole for the 9-pin RS232 connector.Peel off the label to expose the hole.

6. The circuit board in the balance con-tains a circuit connector. Obtain the

RS232 Interface Accessory and care-fully install the ribbon connector fromthe Interface onto the edge of themain circuit board as shown.


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7. Place the RS232 circuit board andconnector assembly in the balanceso that the 9-pin connector fits throughthe hole.

8. Fasten the Interface assembly to thebalance using the two screws pro-vided with the Interface.

9 Replace the bottom plate and fastenwith the 4 screws previously removed.

10. Install the batteries (if removed) or

AC Adapter.

11. Replace the platform.

Cable ConnectionsCable ConnectionsCable ConnectionsCable ConnectionsCable Connections

It is recommended to use an Ohaus cable,however, you may configure your own.

On the rear of the balance, a 9-pin submin-iature D connector is provided for inter-facing to other devices. The pinout and pinconnections are shown in the adjacentillustration.

The balance will not output any data un-less pin 5 (CTS) is held in an ON state (+3

to +15 V dc). Interfaces not utilizing theCTS handshake may tie pin 5 to pin 6 todefeat it.

Connect the cable from the balance to theexternal device.

If communication parameters of the exter-nal device match the factory settings, the

Interface is ready for use. Refer to Print-ing. If not, refer to Configuring the PrintMenu to change the interface parameters.

INSERT CIRCUIT BOARDAS SHOWN

FASTEN SCREWS

1 Make no connection

2 Data Out (TXD)

3 Data In (RXD)4* Tare (External signal)

5 Clear To Send (CTS)6 Data Terminal Ready (DTR)7 Ground

8 Request To Send (RTS)9* Print (External signal)

* External PRINT and/or TAREswitches may be installed as shownin the diagram. Momentary con-

tact switches must be used.

PRINT *

TARE *


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PRINTINGPRINTINGPRINTINGPRINTINGPRINTING

When the Interface is installed,

the switch on the balance can initate

print commands as follows:

1. Short press when only oneoneoneoneonemeasuring unit is set on.

2. Slightly extended press when more than onemore than onemore than onemore than onemore than onemeasuring unit is on.

3. Longer press turns the balance offoffoffoffoff.

The display indicates -P- and the external device will print. Data output is in the formatshown under the P command in the RS232 Command Table.

Data output can also be initiated as follows:

1. Using the Auto Print feature.

2. Sending a print command (P) from a computer.

3. Using an external print switch.

When the interface is connected to a computer, two way communication between thecomputer and balance is possible using the commands outlined in the RS232Command Table.


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CONFIGURING THE PRINT MENUCONFIGURING THE PRINT MENUCONFIGURING THE PRINT MENUCONFIGURING THE PRINT MENUCONFIGURING THE PRINT MENU

The Print menu is used to configure the RS232 Interface parameters and customizethe balances print functions for your requirements. The following illustration showsthe sequence in which submenus appear on the Print menu.

PRINT MENU

RESETYES/NO

BAUD RATE300, 1200, 24002400240024002400,

4800, 9600

DATA BITS**77777or 8

PARITY BIT**Odd, Even, NoneNoneNoneNoneNone

STOP BITS**1 or 22222

AUTO PRINTcontinuous, on stability, OFFOFFOFFOFFOFF

STABLE DATA OUTPUT ONLY *ON or OFFOFFOFFOFFOFF

END

Resets to original factory set-tings:

Baud Rate: 2400Data Bits: 7Parity Bit: None

Stop Bit: 2Auto Print: OFFStable Data Output

Only: OFF

Must be used to exit

and store changesmade.

* Not available on Legal for Trade models. Original factory settings apply.

**The total number of bits for Data, Parity and Stop must equal 9 or 10.

To access the Print menu, press and hold until Print appears, then release it.

Use these buttons to step through the menu and make selections:

selectdisplayed item

nextselection


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D D D D D Sets all balance menu selections to the factory defaults.

PPPPP Print display data in the following format:1 2 3 4 5 6 7 8 9 10 11 12 13 14

+ display value Sp units ? Cr Lf Sp=Space

????? Print display Unit in the following format:(field) units stability Cr Lf(# of char) 3 1 1 1

MMMMM This command has the same effect as pressing the left button (OFFMODE) on the front panel.

TTTTT This command has the same effect as pressing the Right button (On

TARE) on the front panel.

EEEEE Exit parts counting mode.

L*L*L*L*L* Start a 3 point Linearity Calibration.

C*C*C*C*C* Start Span Calibration.

VVVVV Print software version in the format: "CT V-.-".

NNNNN Toggle automatic error message printing ON or OFF. Current statusafter executing the command is shown as ON or OFF. Default is ON.

0D/1D0D/1D0D/1D0D/1D0D/1D Disable/Enable a 1 second delay in the balance's response to a "P"command.

0S/1S0S/1S0S/1S0S/1S0S/1S * Disable/Enable the Stable Data Only printing feature. This is equiva-lent to the StAbL sub-menu of the Print menu.

nZ*, n=0,1,2,3nZ*, n=0,1,2,3nZ*, n=0,1,2,3nZ*, n=0,1,2,3nZ*, n=0,1,2,3 Set Auto Zero Tracking to OFF, .5d, 1d or 3d. This is the equivalent

to the Auto.0 sub-menu of the Setup menu.

nnAnnAnnAnnAnnA Set Auto Print feature to nn. This is equivalent to the Auto.P sub-menuof the Print menu with the feature of "Interval Print" added.

nn=0, Off

nn=S, On Stablenn=C, Continuousnn=1 -99, Set interval to nn seconds.

CommandCommandCommandCommandCommand

CharacterCharacterCharacterCharacterCharacter DescriptionDescriptionDescriptionDescriptionDescription

RS232 COMMAND TABLERS232 COMMAND TABLERS232 COMMAND TABLERS232 COMMAND TABLERS232 COMMAND TABLE

Only the characters shown in the following table are acknowledged by the balance. Any othercommands not shown in the table, balance responds with ES syntax error. Commands sent to

the balance must be terminated with a carriage return (CR) or carriage return-line line feed(CRLF). Data output by the balance is always terminated with a carriage return - line feed (CRLF).

* Command is not available on Legal for Trade models.


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SERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATION

For Service assistance in the United States, please call Ohaus Corporation toll-free at(800) 526-0659. An Ohaus Product Service Specialist will be available to help you.

LIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTY

Ohaus products are warranted against defects in materials andworkmanship from the date of delivery through the duration of thewarranty period. During the warranty period Ohaus will repair, or, at itsoption, replace any component(s) that proves to be defective at nocharge, provided that the product is returned, freight prepaid, toOhaus.

This warranty does not apply if the product has been damaged byaccident or misuse, exposed to radioactive or corrosive materials, hasforeign material penetrating to the inside of the product, or as a resultof service or modification by other than Ohaus. In lieu of a properlyreturned warranty registration card, the warranty period shall begin onthe date of shipment to the authorized dealer. No other express orimplied warranty is given by Ohaus Corporation. Ohaus Corporationshall not be liable for any consequential damages.

As warranty legislation differs from state to state and country tocountry, please contact Ohaus or your local Ohaus dealer for furtherdetails.


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8

Ohaus Corporation29 Hanover Road,

Florham Park, NJ 07932, USATel: (973) 377-9000,Fax: (973) 593-0359

With offices in England, France, Germany, Italy, Spain, Poland, Mexico, Japan,Korea and China.

P/N 77171-02 R1198 Ohaus Corporation 1996, 1998 all rights reserved.


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Documents

Balansa Ohaus Ct 1200