Pressure and Temperature Sensor Series WEemanuals.nordson.com/adhesives/English_Manuals/7156744.pdf · 4 Flexible tube 5 Temperature sensor receptacle 6 Temperature sensor voltage

NORDSON ENGINEERING GMBH � LÜNEBURG � GERMANY

Pressure and Temperature SensorSeries WE

Manual P/N 7156744A− English −

Issued 06/10

P/N 7156744A � 2010 Nordson CorporationWE

NoteThis document is for products with the following P/N:

7160999

Order numberP/N = Order number for Nordson products

NoticeThis is a Nordson Corporation publication which is protected by copyright. Original copyright date 20010.No part of this document may be photocopied, reproduced, or translated to another language without theprior written consent of Nordson Corporation. The information contained in this publication is subject to

change without notice.

� 2010 All rights reserved.

TrademarksAccuJet, AeroCharge, Apogee, AquaGuard, Asymtek, Automove, Autotech, Baitgun, Blue Box, Bowtie, CanWorks, Century, CF, CleanSleeve, CleanSpray,Color-on-Demand, ColorMax, Control Coat, Coolwave, Cross-Cut, cScan+, Dispensejet, DispenseMate, DuraBlue, DuraDrum, Durafiber, DuraPail,Dura-Screen, Durasystem, Easy Coat, Easymove Plus, Ecodry, Econo-Coat, e.dot, Emerald, e.stylized, EFD, Encore, ESP, ETI−stylized, Excel 2000, Fillmaster,FlexiCoat, Flexi-Spray, Flex-O-Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Fulfill, GreenUV, HDLV, Heli-flow, Helix, Horizon, Hot Shot, iControl, iDry,iFlow, Isocoil, Isocore, Iso-Flo, iTRAX, JR, KB30, Kinetix, Lean Cell, Little Squirt, LogiComm, Magnastatic, March, Maverick, MEG, Meltex, Microcoat, Micromark,MicroSet, Millenium, Mini Squirt, Moist-Cure, Mountaingate, Nordson, OptiMix, Package of Values, PatternView, PermaFlo, PicoDot, PluraFoam, Porous Coat,PowderGrid, Powderware, Precisecoat, Primarc, Printplus, Prism, ProBlue, Prodigy, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, RBX, Rhino, Saturn, Saturn with rings,Scoreguard, SC5, S. design stylized, Seal Sentry, Select Charge, Select Coat, Select Cure, Signature, Slautterback, Smart-Coat, Solder Plus, Spectrum,Speed-Coat, Spraymelt, Spray Squirt, Super Squirt, SureBead, Sure Clean, Sure Coat, Sure-Max, Sure Wrap, Tela-Therm, Tracking Plus, TRAK, Trends,Tribomatic, TrueBlue, TrueCoat, Ultra, UniScan, UpTime, u-TAH, Vantage, Veritec, VersaBlue, Versa-Coat, VersaDrum, VersaPail, Versa-Screen, Versa-Spray,Walcom, Watermark, When you expect more. are registered trademarks − ® − of Nordson Corporation.

Accubar, Advanced Plasma Systems, AeroDeck, AeroWash, AltaBlue, AltaSlot, Alta Spray, AquaCure, ATS, Auto-Flo, AutoScan, Axiom, Best Choice,BetterBook, Blue Series, Bravura, CanNeck, CanPro+, Celero, Chameleon, Champion, Check Mate, ClassicBlue, Classic IX, Clean Coat, ContourCoat,Controlled Fiberization, Control Weave, CPX, cSelect, Cyclo-Kinetic, DispensLink, DropCure, Dry Cure, DuraBraid, DuraCoat, e.dot+, E-Nordson, Easy Clean,EasyOn, EasyPW, Eclipse, Equalizer, Equi=Bead, Exchange Plus, FillEasy, Fill Sentry, FlowCoat, Fluxplus, G-Net, G-Site, Get Green With Blue, Gluie, Ink-Dot,iON, Iso-Flex, iTrend, KVLP, Lacquer Cure, Maxima, Mesa, MicroFin, MicroMax, Mikros, MiniBlue, MiniEdge, Minimeter, MonoCure, Multifil, MultiScan, Myritex,OmniScan, Nano, OptiStroke, Origin, Partnership+Plus, PatternJet, PatternPro, PCI, Pinnacle, Plasmod, PluraMix, Powder Pilot, Powder Port, Powercure,Process Sentry, Pulse Spray, PurTech, Quad Cure, Ready Coat, RediCoat, Royal Blue, Select Series, Sensomatic, Shaftshield, SheetAire, Smart, SolidBlue,Spectral, Spectronic, SpeedKing, Spray Works, Summit, Sure Brand, SureFoam, SureMix, SureSeal, Swirl Coat, TAH, Tempus, ThruWave, TinyCure, Trade Plus,Trilogy, Ultra FoamMix, UltraMax, Ultrasaver, Ultrasmart, Universal, ValueMate, Viper, Vista, Versa, WebCure, 2 Rings (Design) are trademarks − � − of NordsonCorporation.

Designations and trademarks stated in this document may be brands that, when used by third parties for their own purposes, could lead to violation of the owners’ rights.

Table of Contents I

P/N 7156744A� 2010 Nordson Corporation WE

Table of Contents

Safety Instructions 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Use 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unintended Use - Examples - 1. . . . . . . . . . . . . . . . . . . . . . . . . . . Residual Risks 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illustration 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transport / Storage 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screwing in 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screwing out 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Connection 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting Up 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calibrating the Zero Point 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calibrating to 0 V or 4 mA 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . Fine Calibration 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calibrating Pressure Measuring Range − Not Usually Necessary 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resetting Zero Point 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resetting Zero Point and End Value to Default 6. . . . . . . . . . . . Calibrating Adapter 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning Separating Membrane 7. . . . . . . . . . . . . . . . . . . . . . . . . Checking Performance 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking Measuring Performance 8. . . . . . . . . . . . . . . . . . . . .

Accessories 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Data 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Data 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of ContentsII


Pressure and Temperature Sensor 1


Safety InstructionsWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.

Description

Intended UseThe pressure and temperature sensor - hereafter also referred to as sensor- may be used only to compile the pressure and measure the temperature ofliquid or pasty materials. The materials must be homogenous and may notcontain solid components.

The sensor may be used only in the specified measuring range. Themaximum temperature at the separating membrane may not exceed 400 °C/ 750 °F.

Any other use is considered to be unintended. Nordson will not be liable forpersonal injury or property damage resulting from unintended use.

Intended use includes the observance of Nordson safety instructions.

Unintended Use - Examples -The sensor may not be used under the following conditions:

� In defective condition (e.g. when the separating membrane is scratchedor when material particles have hardened and stuck to the separatingmembrane)

� In a potentially explosive atmosphere

� When changes or modifications have been made by the customer

� In an environment that does not correspond to the Degree of ProtectionIP 65

� When screwed into a hole of incorrect size

� Screwed into place with incorrect torque (Refer to page 9, TechnicalData).

Residual RisksIn the design of the unit, every measure was taken to protect personnelfrom potential danger. However, some residual risks can not be avoided.Personnel should be aware of the following:

� Risk of burns on the sensor

2 Pressure and Temperature Sensor


Illustration

11 6 5

4

1 32

9 8 710

Fig. 1

1 Pressure sensor voltage plug2 Magnetic pin3 Measuring head4 Flexible tube

5 Temperature sensor receptacle6 Temperature sensor voltage plug7 Grasping surface

8 Shaft9 Thread

10 Separating membrane11 Protective cap



Installation

Transport / Storage� Avoid jolts and vibrations. Transport and store only in sturdy, suitable

packaging.

� Always close with the protective caps when transporting or storing toprotect the sensitive separating membrane from damage. Beforescrewing on the protective cap, ensure that the separating membraneand the cap are clean.

� Avoid extreme temperature fluctuations to prevent condensation fromforming.

Screwing in� Apply PTFE grease to the thread, e.g. GLS 595/NZ, order number:

P/N 783959.

� The sensor should only be screwed into an absolutely clean hole of thecorrect size.

� The machine part and the sensor should be at room temperature or atclose to the same temperature before the sensor is screwed into place.

� Do not jam when screwing in. Screw by hand until the sealing surfacesare in place. Do not turn measuring head! Then screw into place with atorque wrench. Max. torque 56 Nm.

Fig. 2 Correct installation

Screwing outWARNING: Hot! Risk of burns. Wear heat-protective gloves.

WARNING: Relieve unit/system of pressure before unscrewing the sensor.Failure to observe can result in serious burns.

CAUTION: If the material hole is to be cleaned with a hard object, firstremove the sensor. Otherwise the separating membrane could bedamaged.

CAUTION: The machine part and the sensor must be at room temperaturewhen the sensor is removed. Otherwise the separating membrane couldtear.

1



Electrical ConnectionFor electrical connections on pressure sensor, refer to page 9, TechnicalData.

If the sensor is delivered as a single component, the temperature sensorreceptacle (1, Fig. 3) must be wired by the customer. Use wire end ferrules.Refer to the label on the receptacle for connecting arrangement.

NOTE: Observe technical data of the units processing signals.

Fig. 3

Starting Up

CAUTION: Calibrate the pressure sensor only when it is heated tooperating temperature.

The pressure sensor has a magnetic contact in the measuring head. Whenthe magnetic pin (1, Fig. 4) touches the contact (2, Fig. 4), variousfunctions are activated. The length of time that the pin touches the contactdetermines which functions are activated.

1 2

Fig. 4



Calibrating the Zero PointZero point calibration works only when the equipment is depressurized (0 to10 % of the pressure sensor measuring range end value).

1. Connect a suitable display unit, e.g. DC-Voltmeter. Supply operatingvoltage to the pressure sensor. Refer to page 9, Technical Data.

NOTE: Brief rises of output signal to approx. 7 mA have no effect oncalibration.

Calibrating to 0 V or 4 mA2. Hold the magnetic pin to the label for 1 to 10 seconds. The pressure

sensor zero point is calibrated to 0 V or 4 mA.

Fine Calibration3. Hold the magnetic pin to the label for 10 to 30 seconds.

4. Remove the magnetic pin.

The offset can be set between �100 mV and �1.6 mA. The signalchanges 6 mV or 12 ìA per second.

5. To stop, touch the label briefly with the magnetic pin.

NOTE: If the temperature deviates more than 10 °C from the temperatureat which calibration was performed, Nordson recommends calibrating anew.



Calibrating Pressure Measuring Range − Not Usually Necessary1. Connect a suitable display unit, e.g. DC-Voltmeter. Supply operating

voltage to the pressure sensor. Refer to page 9, Technical Data.

NOTE: Brief rises of output signal to approx. 7 mA have no effect oncalibration.

2. Perform Zero point calibration when the equipment is depressurized.

3. Apply 95 to 105 % of the measuring range end value to the pressuresensor.

4. Bridge terminals E and F. Also refer to page 6, Calibrating Adapter andpage 9, Technical Data.

5. Hold the magnetic pin to the label for 1 to 10 seconds. The pressurenow applied corresponds to 10 V or 20 mA.

6. Disconnect terminals E and F.

7. Perform Zero point calibration again when the equipment isdepressurized.

CAUTION: If the voltage supply is interrupted during calibration, the zeropoint must first be reset. Then recalibrate the zero point if necessary andcalibrate the unit anew.

The precision of calibration can be increased by repeating calibrationseveral times.

Resetting Zero PointHold the magnetic pin to the label for 30 to 60 seconds.

This resets the zero point to the factory-set default; the end value remainsunchanged.

The default value can be found on the pressure sensor ID plate.

Resetting Zero Point and End Value to DefaultHold the magnetic pin to the label for longer than 60 seconds.

The default value can be found on the pressure sensor ID plate.

Calibrating AdapterA calibrating adapter can also be used. The contacts in the calibratingadapter can be bridged with the aid of the switch. It is inserted between thepressure sensor and the connecting cable.

For the calibrating adapter order number (P/N), refer to page 8,Accessories.



MaintenanceWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.

Unit part Activity Interval Refer to

Entire sensor Check performance Dependent on purpose andconditions of use of sensor

Page 8

Calibrate zero point Every year; more often ifconditions of use require

Page 5

Calibrate Page 6

Separating membrane Check for damage With every performancecheck, more often ifnecessary

−

Check if hardened orcharred material is stuck tothe membrane; clean ifnecessary

Page 7

Cleaning Separating MembraneNOTE: Clean the separating membrane carefully. Never use hard tools.

WARNING: Hot! Risk of burns. Wear heat-protective gloves.

Remove material residue with a cleaning agent recommended by thematerial supplier. Thermoplastic materials such as hot melt adhesives mayneed to be heated with an air heater and then carefully wiped off with a softcloth.



Checking PerformanceConnect sensor electrically for performance check; do not screw in.

CAUTION: Never check performance with objects that could damage theseparating membrane. The separating membrane must be absolutely clean.Apply pressure to the separating membrane. If possible, use a suitablepressure instrument; otherwise use a finger or a flexible object.

Checking Measuring Performance

1. Connect the sensor to an ammeter. Supply the pressure sensor with 12to 30 VDC operating voltage.

2. When pressure is applied to the separating membrane, there should bean output signal of 4 to 20 mA, proportional to the pressure, at the signaloutput.

AccessoriesReceptacle plug P/N 285344

Calibrating adapter P/N 280825



Technical Data

General Data

Measuring range 0 to 100 bar 0 to 10 MPa 0 to 1450 psi

Maximum separating membranetemperature

400 °C 750 °F

Permitted ambient temperature −30 to +85 °C −22 to +185 °F

Temperature sensor type Pt 100

Length of shaft incl. thread 76 mm

Length of flexible hose 457 mm

Total length 533 mm

Thread 1/2 -20 UNF

Max. screw-in torque 56 Nm

Calibration signal 80 % of measuring range end value

Electrical Data

Degree of protection IP 65

Operating voltage 12 to 30 VDC

Output signal when the unit ispressure-less

4 mA

Output signal at nominal pressure 20 mA

Electrical connections on pressuresensor

Calibration function (connect contact E to F)

Operating voltage 12 to 30 VDC

Signal output 4 to 12 mA

No function

No function

Calibration function (connect contact E to F)

Electrical connections on temperaturesensor

Refer to labels on voltage plug and receptacle



Documents

Pressure and Temperature Sensor Series WEemanuals.nordson.com/adhesives/English_Manuals/7156744.pdf · 4 Flexible tube 5 Temperature sensor receptacle 6 Temperature sensor voltage