H61.0.34.6C-01
User’s Manual GMH3181-13
page 10 of 12
_______________________________________________________________________________________________________________________
GREISINGER electronic GmbH
Hans-Sachs-Straße 26
Fon: 0049-9402 / 9383-0
http://www.greisinger.de
D-93128 Regenstauf
Fax: 0049-9402 / 9383-33
e-mail: [email protected]
5 Pressure Connection To The Sensors
•
For measurements of over pressure (-100 mbar ... 2000 mbar):
Connect plastic tube with internal dia of 4 mm to pressure port "+". Port "-" will not be used!
•
For measurements of under pressure (-2000 mbar ... 0 mbar):
Plug the tube to pressure port "-". The measuring range covers then -2000 to 0 mbar.
Note: All values are displayed now as positive values. No minus sign will be shown.
Example: it is possible to measure under pressure down to -2000 mbar, the display shows then the value
2000 (no minus sign).
•
For measurements of pressure differences:
Connect both plastic tubes with an internal dia of 4 mm to pressure port "+" and "-"; make sure to apply
higher pressure to port "+".
6 Error And System Messages
Display
Meaning
What to do?
Low battery power, device will only continue
operation for a short period of time
Replace battery
Battery empty
Replace battery
Mains operation without battery: wrong voltage
Check power supply, replace it when
necessary
Battery empty
Replace battery
Mains operation without battery: wrong voltage
or polarity
Check power supply, replace it when
necessary
System error
Disconnect battery and power supplies,
wait shortly, then reconnect
No display or
confused
characters,
device does
not react on
keypress
Device defective
Return to manufacturer for repair
Measured value above allowable range
Check: pressure above 2000 mbar?
-> measuring value to high
Err.1
Sensor defective
Return to manufacturer for repair
Measured value below allowable range
Check: pressure below -100 mbar?
-> measuring value to low
Err.2
Sensor defective
Return to manufacturer for repair
Err.4
Value is too low to be displayed, tara is set
Check: display below -2000 (tara?)?
Err.9
Measured value far out of allowable range
Check: pressure not within sensor range?
Err.7
System error
Return to manufacturer for repair
7 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!