User manual

H61.0.01.6C-03 User’s Manual GMH3156 page 11 of 12
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GREISINGER electronic GmbH Hans-Sachs-Straße 26 Fon: 0049 - 9402 / 9383-0 http://www.greisinger.de
D-93128 Regenstauf Fax: 0049 - 9402 / 9383-33 eMail: [e-mail]
5 Pressure Connection To The Sensors
The device is designed to be connected to the sensors of the GMSD/GMXD...-series without a new calibration being
necessary. Therefore a great variety of replaceable sensors of e.g. –1.999...2.500 mbar relative up to 0...400.0 bar
absolute pressure can be connected to the device.
Relative Pressure Sensors (types: GMSD/GMXD...MR, GMSD/GMXD...BR)
• For measurements of over- or under pressure:
Connect plastic tube with internal dia of 4 mm to pressure port "B". Port "A" will not be used!
Pressure sensors GMSD 2,5 MR, GMSD 25 MR and GMSD 350 MR allow for measurements of under pressure up
to the entire over pressure measuring range by re-plugging the tube to pressure port "A". Please note that all values
are displayed as positive values. No minus sign will be shown. (Example for GMSD 25 MR: For tube connection "B"
the measuring range covers -19.99 to 25.00 mbar. If you replug to port "A" under pressure measurements down to -
25.00 mbar could be carried out with the display showing the value 25.00 (no minus sign).
•
For measurements of pressure differences:
Connect both plastic tubes with an internal dia of 4 mm to pressure port "B" and "A"; make sure to apply higher
pressure to port "B".
Absolute pressure sensors: (types: GMSD/GMXD...BA)
Connect plastic tube with an internal dia of 4 mm to pressure port "A". (Port "B" is not used.)
Stainless steel pressure sensors: (types: GMSD/GMXD...MRE, GMSD/GMXD...BRE, GMSD/GMXD...BAE)
For measurements of over-, under- or absolute pressure screw sensor to G1/4" pressure terminal or plug plastic tube to
a suitable adapter.
Measurements of pressure differences with two sensors
By means of the calculation sensor 1 – sensor 2 (DIF) press. differences of any sensor combinations can be measured.
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
No sensor connected Switch off device and connect sensor
Connected sensor or device defective If 2nd sensor available, check if device is ok. Return
defective device/sensor to manufacturer for repair
or Err.9
Value extremely out of measuring range Check: pressure not within sensor range?
Battery empty Replace battery
Mains operation: 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 not within sensor range?
-> measuring value to high!
Err.1
Sensor defective Return to manufacturer for repair
Measured value below allowable range Check: pressure not within sensor range?
-> measuring value to low!
Err.2
Sensor defective Return to manufacturer for repair
Err.3
Display range overflow Check: value above 19999 -> to high to be displayed
Err.4
Display range underflow Check: value below -19999 (Tara?) -> to low
Value could not be calculated Choose different unit
Er.11
Calculation overflow happened Choose different unit
Err.7
System error Return to manufacturer for repair
Sensor not present / recognised reconnect sensor,
during logging: stop the logger and restart it
– – – –
could not calculate value suitable sensor / unit combination necessary