GREISINGER GMH 3231 Operating Manual Download Page 11

H76.0.11.6C-03 

 Operating Manual GMH 3231 

page 11 of 14 

 

 

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Adjustment 

9.1  Zero Displacement Sensor 1 ('OFS.1') or Sensor 2 ('OFS.2') 

A zero displacement can be carried out for the measured value: 

value displayed = value measured  -  offset 

Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out. Together 
with the scale correction (see below) this factor is mainly used to compensate for 
sensor deviations. Input is in the display unit. 

9.2   Scale Correction Sensor 1 ('SCL.1') or Sensor 2 ('SCL.2') 

This setting influences the scale of the measuring (factor is in %): 

displayed value = measured value * (1+Scal/100) 

Standard setting: 'off' =0.000, i.e. value is not corrected. Together with the zero 
displacement (see above) this factor is mainly used to compensate for sensor 
deviations. 
 

9.3  Correction for surface measuring 

Sensor 1(’SCF.1’)  

o

r Sensor 2 (’SCF.2’) 

The correction value refers to the temperature difference between the device- / 
ambient temperature and the temperature determined by the thermocouple.

 

 
Display = device tempe (measured temperature 

– device temperature) * Corr

 

 

Standard setting

: ’off’ =1.000 

This factor is used to compensate for losses of transfer in case of surface 
measurements, occurring if the object to be measured is extremely hot but will be 
cooled by lower ambient temperatures. The same can be true for sensors with a large 
mass. Unless ’off’ is set, this value will be displayed shortly after the device is 
switched on; during operation it will be identified by means of the Corr-arrow in the 
display 
 

9.4  Calibration Services 

Calibration certificates 

– DKD-certificates – other certificates: 

If device should be certificated for its accuracy, it is the best solution to return it to the 
manufacturer. 
Only the manufacturer is capable to do efficient recalibration if necessary to get 
results of highest accuracy! 
 

 
 

  

 

 

Summary of Contents for GMH 3231

Page 1: ...ANY Tel 49 9402 9383 0 info greisinger de www greisinger de Operating manual Quick Response Double Difference Thermometer as of version 4 0 GMH 3231 Please carefully read these instructions before use WEEE Reg Nr DE 93889386 Please consider the safety instructions Please keep for future reference ...

Page 2: ...4 2 BASIC OPERATION 6 4 3 CONNECTIONS 7 4 4 POP UP CLIP 7 5 START OPERATION 8 6 CONFIGURATION OF GMH 3231 8 7 REMARKS TO SPECIAL FEATURES 9 7 1 TARE FUNCTION 9 7 2 BASE ADDRESS ADR 9 7 3 POWER OFF TIME 9 8 OUTPUT 9 8 1 SERIAL INTERFACE 9 9 ADJUSTMENT 11 9 1 ZERO DISPLACEMENT SENSOR 1 OFS 1 OR SENSOR 2 OFS 2 11 9 2 SCALE CORRECTION SENSOR 1 SCL 1 OR SENSOR 2 SCL 2 11 9 3 CORRECTION FOR SURFACE MEAS...

Page 3: ... be sure that there s no risk arising due to misinterpretation of measured values the operator must have further knowledge in case of doubt the user is liable for any harm damage resulting from misinterpretation due to insufficient knowledge The manufacturer will assume no liability or warranty in case of usage for other purpose than the intended one ignoring this manual operating by unqualified s...

Page 4: ...d the device has been stored under unsuitable conditions for a longer time In case of doubt please return device to manufacturer for repair or maintenance 3 Do not use these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury or material damage Failure to comply with these instructions could result in death or seriou...

Page 5: ...in Mains operation with power supply When using a power supply please note that operating voltage has to be 10 5 to 12 V DC Do not apply overvoltage Cheap 12V power supplies often have excessive no load voltage We therefore recommend using regulated voltage power supplies Trouble free operation is guaranteed by our power supply GNG10 3000 Prior to connecting the power supply to the mains make sure...

Page 6: ... Tare appears if tare function is active Only with difference measurement 7 Logg not in use 4 2 Basic Operation On Off min max measuring press short shows the min max value press again hides min max value press 2 sec clears particular value Tare only with DIF display and two connected sensors press short the difference CH1 CH2 will be set to 0 press 2 sec deactivates tare function Set Menu press s...

Page 7: ...ce 4 4 Pop up clip Handling Pull at label open in order to swing open the pop up clip Pull at label open again to swing open the pop up clip further Pop up clip closed Pop up clip at position 90 Pop up clip at position 180 Function The device with a closed pop up clip can be plainly laid onto a table or attached to a belt etc The device with pop up clip at position 90 can be set up on a table etc ...

Page 8: ...est power consumption SEr Output is serial interface Adr 01 11 91 Base address of interface if Out SEr OFS 1 10 0 C 10 0 C or 18 0 F 10 0 F The offset of sensor 1 will be displaced by this value to compensate for deviations in the Sensor or in the measuring device oFF Zero point displacement is deactivated 0 0 OFS 2 10 0 C 10 0 C or 18 0 F 10 0 F The offset of sensor 2 will be displaced by this va...

Page 9: ...rface communication takes place for the time of the power off time setting P Off the device will be switched off automatically to save battery power If P oFF oFF then the automatic switch off is deactivated 8 Output The output can be used as serial interface for USB 3100 USB 3100 N GRS 3100 or GRS 3105 interface adapters If none of both is needed we suggest to switch the output off because battery...

Page 10: ...lected measurement unit Supported interface functions Channel Code Function 1 2 3 x x x 0 Read measurement value x x x 3 Read system state x 12 Read ID number x 174 Delete min value x 175 Delete max value x x x 176 Read min measuring range x x x 177 Read max measuring range x x x 178 Read measuring range unit x x x 179 Read measuring range decimal point x x x 180 Read kind of measuring of sensor x...

Page 11: ...sate for sensor deviations 9 3 Correction for surface measuring Sensor 1 SCF 1 or Sensor 2 SCF 2 The correction value refers to the temperature difference between the device ambient temperature and the temperature determined by the thermocouple Display device temperature measured temperature device temperature Corr Standard setting off 1 000 This factor is used to compensate for losses of transfer...

Page 12: ...mocouple selected Temperature not within sensor range measuring value to high Sensor defective Return to manufacturer for repair Err 2 Measured value below allowable range Check correct thermocouple selected Temperature not within sensor range measuring value to low Sensor defective Return to manufacturer for repair Err 3 Display range overflow Check value above 1999 9 too high to be displayed Err...

Page 13: ...12 Specification Thermocouples J K N S T E B Resolution 0 1 C or 1 C 0 1 F or 1 F Measuring range Type K NiCr Ni 220 0 1372 0 C 364 0 2502 0 F Type J Fe CuNi 200 0 1100 0 C 328 0 2021 0 F Type T Cu CuNi 200 0 400 0 328 0 752 0 F Type N NiCrSi NiSi 200 0 1300 0 328 0 2372 0 F Type S Pt10Rh Pt 50 0 1768 0 C 58 0 3215 0 F Type E NiCr CuNi 60 0 850 0 C 76 0 1562 0 F Type B Pt30Rh Pt6Rh 300 1750 C 572 ...

Page 14: ... as additional d c connector diameter of internal pin 1 9 mm for external 10 5 12V direct voltage supply suitable power supply GNG10 3000 Power consumption approx 1 0 mA Output out off approx 1 4 mA Output out ser Low battery warning bAt Working conditions 25 50 C 0 95 RH not condensing Storage temperature 25 70 C Housing impact resistant ABS membrane keyboard transparent panel Front side IP65 Dim...

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