H36.0.12.6C-09
Operating Manual GMH 3691
page 9 of 12
10 Error And System Messages
Display
Description / Reason
Remedy
No sensor
or sensor defective
Connect sensor
sensor defective => return sensor to manufac-
turer for repair
Low battery voltage
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
No display
or
mazy characters
- 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
- Device defective
return to manufacturer for repair
Values exceeding measuring range
Are there any values exceeding the measuring
range specified?
->measuring value too high
Sensor/cable defective
-> replace probe
Values below measuring range
Are there any values below the measuring
range specified?
-> measuring value too low
Sensor/cable defective
-> replace probe
System fault
switch on again: if fault continues to exist, de-
vice is damaged
-> return to manufacturer for repair
No sensor
connect suitable sensor
Error in sensor
Sensor defective => return to manufacturer for repair
Temperature display correct,
oxygen display incorrect
check: plug in sensor housing connected?
Open PG-glanding and pull up plug as far as
possible.
Value could not be calculated
One measuring variable required for calculation
is missing (no sensor) or incorrect (over-
flow/underflow)
10.1 Error and System Messages during Oxygen Calibration
Display
Description / Reason
Remedy
(AL
ERR. 1
Wrong temperature
temperature has to be between 5 and 40°C
(AL
ERR.3
Sensor slope to low
check calibration environment (p.r.t. 'Calibration
of the oxygen sensor'). If error are unremedied
replace sensor element.
(AL
ERR.4
sensor slope to high
check calibration environment
(p.r.t. 'Calibration of the oxygen sensor')
(AL
ERR.5
calculated offset to large
check calibration environment (p.r.t. 'Calibration
of the oxygen sensor'). If error are unremedied
replace sensor element.
