Dansensor A/S COPYRIGHT © PBI-200114-D 04/2013
ISM-3 EN User Manual 25
The display shows: er.32
Errors in the oxygen
sensor calibration data.
The checksum does not
match.
The calibration data and the offset adjustment
is reset and stored in the Flash memory.
Calibrate the device.
The display shows:
er.33
Errors in one of or more of
the set-up values
All set-up values are changed to factory
settings. Please check the values in the set-up
menu and the set- up of the alarm limit values
al.HI and al.Lo.
The display shows: er.34
Errors in the flow sensor
calibration data.
Switch off the ISM-3 and wait 10 seconds and
switch on again. Press if there is still an error
message. The readout of flow might be
erroneous.
Eventually send ISM-3 for repair
The display shows:
er.50
Hardware error. Check
sum error in the EPROM
containing all program
code
Switch off ISM-3, wait for 10 seconds and
switch it on again. If an error is still indicated,
ISM-3 must be returned for repair.
The display shows:
er.51
Hardware error. Furnace
thermo element alarm.
Thermo element switched
off
Switch off ISM-3, wait for 10 seconds and
switch it on again. If an error is still indicated,
ISM-3 must be returned for repair.
The display shows:
er.52
Cannot reach stable
heating temperature.
Fluctuates more than
±30°C
Switch the ISM-3 off and wait 10 seconds and
then switch on again. If message of error is still
given, ISM-3 must be returned for repair.
The display shows:
er.53
Hardware error. Missing
ready signal from A/D
converter
Switch the ISM-3 off and wait 10 seconds and
then switch on again. If message of error is still
given, ISM-3 must be returned for repair.
The display shows:
er.54
Too high internal
temperature (>60 °C)
Replace the filter of the fan and check that the
ventilator is not blocked. Check also that the
surrounding temperature does not exceed
45°C. If message of error is still given the ISM-
3 must be returned for repair.
The display shows:
er.55
Hardware error. Read
error from the A/D -
Converter
Switch the ISM-3 off and wait 10 seconds and
then switch on again. If message of error is still
given, ISM-3 must be returned for repair.
The display shows:
er.56
Hardware error. Error
caused by initialisation of
I
2
C bus.
Switch ISM-3 off, wait 10 seconds and switch
on again, if there is still message of error, ISM-
3 must be returned for repair.
The display shows:
er.57
Hardware error. Error in
connection with the
reading or writing via I
2
C
bus.
Switch ISM-3 off, wait 10 seconds and switch
on again, if there is still message of error, ISM-
3 must be returned for repair.
Problem Possible cause Possible solution