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Brief Description: 

 
The GM 80 TG / PA is a DC measuring amplifier for passive, active sensors

 

or sensors with current interface. 

 
GM80 TG 

 

Table device with 24 V DC wall power supply 

GM80 PA 

 

Panel device 72 x 144 norm, cut-out in cabinet: 138 x 68 mm 

 
Inputs:  

 

Passive (SG) 0,35-3,3mV/V;    active: 0-1V...0-5V  /  0/4 – 20mA 

Data logger : 

 

can store up to 3000 measured values. For short-term to long-term measurements 

 

 

 

with many operation modes.  

RS 232: 

 

Data transfer or queries of the measured or logged values to a pc or a printer. 

10 parameter sets: 

Here, the calibration data, the sensor designation and the physical unit are stored. 

Control inputs:   

3 opto coupler inputs with functions such as data logging, RS232-issue, clear memory,  

  

 

 

tare or second limit value set. 

Limit values: 

 

2 very fast photoMos relays as closing contacts are freely configurable  

Measuring functions: 

Tare, min./max. value and delete min./max., are callable during the measurement. 

 
 
If the GM 80 is being delivered with one or more sensors, these sensors will be in-calibrated to the  
GM 80 and are immediately ready for operation. 
The assignment of these sensors to the corresponding parameter set is documented on the rear of the device. 
 

    
 
Operation Example: 
 

- GM 80 PA after current supply is immediately in the measuring mode of the previous selected parameter set. 
- GM 80 TG is switched on by pressing 

ENTER

  

Key Assignment: 

Key Menu: 

 

Scroll up 

 

Scroll down 

ENTER 

Confirmation, one step up in the menu 

ESC 

Discard, one step back in the menu 

 
- Control time and date in SYSTEM menu or adjust if necessary 

-

 Adjust 

language 

Call menu 2 SYSTEM – 2.1 LANG. When 

ENTER

 button was pressed, the GM 80 is in the selection mode. With 

keys 

PLUS

 and/or 

MINUS

 the language can be selected. With 

ENTER

 the selected language will be stored. With 

ESC

 the selected language will be discarded. 

 

-

 Adjust 

time 

Call menu 2 SYSTEM – 2.8 DATE. When 

ENTER

 button was pressed TIME will appear on the LCD. Press 

ENTER

 

again and the time can be adjusted. With 

PLUS

 and 

MINUS

 the hours can be adjusted. After 

ENTER

 the minutes 

can be adjusted with 

PLUS

 and 

MINUS

. With 

ENTER

 the selected time will be stored. With 

ESC

 the selected time 

will be discarded. 

 

- Change to the measuring mode 

From menu 1 MEASUR by pressing 

ENTER

 the list of all sensors is called. With 

PLUS

 and/or. 

MINUS

 a sensor 

parameter set is being chosen. With 

ENTER

 the GM 80 is being adjusted to this sensor parameter set. With 

ESC

 it 

is possible to switch back to menu 1 MEASUR from any mode. 

   
 

 

Summary of Contents for GM 80 PA

Page 1: ...Operating instruction DC Voltage Measuring Amplifier with Data Logger GM 80 TG PA V1 __ ...

Page 2: ...f processes It shall not be used as the only tool for the prevention of dangerous states to machines and plants Machines and plants must be constructed in such a way that erroneous states can not lead to a dangerous situation for the staff e g by independent limit switches mechanical locking devices It must be guaranteed in particular that device operating errors its malfunction or it s breakdown ...

Page 3: ...parameter set is documented on the rear of the device Operation Example GM 80 PA after current supply is immediately in the measuring mode of the previous selected parameter set GM 80 TG is switched on by pressing ENTER Key Assignment Key Menu Scroll up Scroll down ENTER Confirmation one step up in the menu ESC Discard one step back in the menu Control time and date in SYSTEM menu or adjust if nec...

Page 4: ...sured value shall be sent through an interface to a pc or printer the baud rate must be adjusted to the receiver and at SCI MODE the operating mode must be chosen For example HAND a measured value with time is displayed during every keystroke on ENTER while measuring For data logging adjust operating mode in the logger mode e g choose AUTO and interval time e g 10 sec and change to measuring mode ...

Page 5: ...GM 80 TG PA Brief Handling Overview ...

Page 6: ... It is an optocoupler input and therefore it is separated galvanically As a control signal 0V 2V is recognized as low level 3 5V 27V as high level Trigger Thus depending on the adjustment data can be stored or interface data can be issued This input has a high sampling rate therefore very short impulses are recognized as well Enable By this the min and max value is deleted externally In the displa...

Page 7: ...0 s at very slow courses a small rate e g 1 s AVERAGE Forming an average value the numbers indicate by how many measurements an average value is accumulated Applicable at e g vibrations control oscillations 2 5 PASS Password query After entering the password 9373 it is possible to enter menu 3 CALIB There the sensor parameters can be modified 2 6 LCD LCD contrast adjustment If the LCD becomes unre...

Page 8: ...is active GWS 1 2 GWS 1 and 2 are active GWS2 is activated via control input 3 CALIB Calibration menu this is active only if the password has been entered correctly in 2 5PASS For the calibration the sensor needs to be connected to the sensor socket Sensor__ Sensor number or name of the sensor which is to be calibrated POINTDIS Measuring range with decimal indication of the sensor e g 100 0 200 0 ...

Page 9: ...0 LOAD unload sensor 100 LOAD calibration by 100 load apply the nominal load nominal torque or switch to nominal value or NOMVALUE fixed value 4 20 mA SAVE query for takeover of calibration data Edit and Adjust Limit Values In menu 2 SYSTEM 2 9 INPUT Setpoint the limit value parameters can be adjusted If menu LIMIT VALUE SETS is selected and confirmed by ENTER the limit values are listed Switch to...

Page 10: ...play 4 0x34 Reset maximal value 5 0x35 Reset minimal value 6 0x36 Actuate calibration control for sensors with 100 control resistance 7 0x37 Switch off calibration control for sensors with 100 control resistance A 0x41 Read Out datalogger B 0x42 Delete datalogger C 0x43 Read Out current sensor parameter D 0x44 Read Out status E 0x45 Read Out complete status g 0x67 Change protocol setup k 0x6B ENTE...

Page 11: ...dit 0 load mA and 100 load mA Dec point 0xXXXX XXXX 000 _5000___ 001 _5 000__ 010 _50 00__ 011 _500 0__ 100 5 000___ 0 load 2Byte HEX value MSB LSB 100 load 2Byte HEX value MSB LSB Read out of status Status 2Byte general error condition of the GM80 Read out of complete status Status 2Byte general error condition of the GM80 Meas rate 1Byte 0x01 1000 sec 0x02 100 sec 0x03 10 sec 0x04 1 sec Average ...

Page 12: ...input is ended either if 256 characters are received or if the character ETX 0x03 Strg C is contained in the character string Change of Protocol Setup Protocol status 1Byte 0xXXXX XXXX binary coded 1 no closing character is sent 1 send CR LF 1 send CR 1 send LF Calculation of the Checksum CS and the Weighted Checksum gewCS The calculation takes place via all parameter bytes without the command byt...

Page 13: ...In this mode a measured value is issued via the serial interface when the Enter key is pressed at the GM 80 AUTO In this mode a measured value is issued via the serial interface in the adjusted delay TRIGGER At a trigger event In this mode a measured value is written in the logger Since the trigger pulses may occur in 10ms raster and additional time logg is not possible The flank of the trigger pu...

Page 14: ...starting time Since in GRAPHS and in the WINDOW MODE trigger events smaller than 1sec can occur an additional time log is not possible Adjustments in the Logg Mode LOGG OUT Here the data logger is switched off The logg mode in the measuring mode is switched to LOGG OUT as soon as the entire data logger has been edited HAND In this mode a measured value is written into the data logger when the ente...

Page 15: ...Pin Assignment ...

Page 16: ...attery accumulator inserted correctly Connect power supply at operation with accumulators The display begins to flash Charge the accumulators and or exchange the batteries The calibrated adjustments do not match with the sensor anymore Was the sensor overloaded Is the correct sensor selected Possibly recalibrate the sensor Wrong values are indicated after the calibration Was the sensor type select...

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