Greisinger GMH 3530 pH measurement equipment 600425 Data Sheet
Product codes
600425
H33.0.02.6C-09
Operating Manual GMH 3530
page 10 of 14
12 Error And System Messages
Error or system
messages
messages
Description / Reason
Remedy
General:
Low battery voltage
device will only continue operation for
a short time
device will only continue operation for
a short time
replace battery
Low battery voltage
replace battery
- If mains operation: wrong voltage
replace power supply, if fault continues to exist:
device damaged
device damaged
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bzw.
wirre Zeichen
- Battery voltage too low
replace battery
- If mains op.: power supply defective
or wrong voltage/polarity
check/replace mains supply
- System error
disconnect battery or power supply, wait for a
short time, re-connect
short time, re-connect
- Device defective
return to manufacturer for repair
Values exceeding measuring range
Check: are there any values exceeding the
measuring range specified?
-> meas. device not suitable
measuring range specified?
-> meas. device not suitable
Electrode/sensor/cable defective
-> replace electrode/probe
Values below measuring range
check: are there any values below the measur-
ing range specified?
-> meas. device not suitable
ing range specified?
-> meas. device not suitable
Electrode/sensor/cable defective
-> replace electrode/probe
System fault
switch on again: if fault continues to exist, de-
vice is damaged
-> return to manufacturer for repair
vice is damaged
-> return to manufacturer for repair
for ’Ther.’-
measurement only:
- No temperature probe connected
connect temperature sensor
- Temperature sensor defective
- > replace temperature probe
Value could not be calculated
temperature out of compensating range
(0...105°C), or out of measuring range (Err.1 or
Err.2)
(0...105°C), or out of measuring range (Err.1 or
Err.2)
pH-measurement only:
:
Last calibration not valid, existing
calibration data are maintained.
calibration data are maintained.
repeat calibration process
(to deactivate this warning: press Cal-key while
switching device ON/OFF)
(to deactivate this warning: press Cal-key while
switching device ON/OFF)
pH-calibration:
Neutral buffer not permissible:
- Electrode defective
- Wrong buffer solution
- Buffer solution defective
- Electrode defective
- Wrong buffer solution
- Buffer solution defective
clean electrode and calibrate again
if fault occurs again -> replace electrode
always use neutral buffer as first solution!
use new buffer solution
Slope is too low:
- Electrode defective
- Buffer solution defective
- Electrode defective
- Buffer solution defective
replace electrode
use new buffer solution
H
m b a r
m b a r