Dansensor A/S COPYRIGHT © PBI-200114-D 04/2013
ISM-3 EN User Manual 23
8. Error indication/error correction
In the ISM-3 all error indications are presented as ER.XX where xx is a specific error number. The error
numbers are grouped in the following way.
Error number
range
Description
1 -9
User error. The value entered is not within the valid range, etc.
30 - 31
Possible hardware error. Mains supply line failure signal error.
32 - 34
When ISM-3 is switched on all set-up values are read from the Flash memory.
Data has been read OK but the data contains errors (outside the valid range etc.).
The data in question is reset (lost) and written to the Flash memory.
Always control the data in question in the set-up menu subsequently.
50 - 57
Fatal hardware errors (not error 54)
Problem Possible cause Possible solution
The display does not show
O
2
values even though
measurement has been
started
ISM-3 is not warm. Wait until ISM-3 has warmed up. If the unit is
cold, this will take 10 min. (less after shorter
interruptions).
The display is not lit ISM-3 is not supplied with
the correct voltage
Check connections and switches
The fuse in ISM-3 is blown Replace the fuse (see specification)
The display flashes
FL.ER
Gas inlet tube blocked Replace the tube
Too low/high gas inlet
pressure (ISM-3 without
pump)
Check the set-up in set-up menu
Wrong set-up of
min./max. flow limits
Check the set-up in the set-up menu
Defective pump Return ISM-3 for repair.
ISM-3 shows a higher
oxygen content than
expected
Leaks in the system
Incorrect calibration
Check measuring gas hose connections.
Check the calibration data
The display shows:
er. 1
Invalid programming of
the set-up menu
Check within which range the set values must
be. See “The setup menu SET.” on page 15 for
details.
The display shows:
er. 2
Programming outside the
valid range for the Flush
delay (
DEL.) parameter
The display shows :
er. 3 Invalid setting of pa.
See "Setting up of options, relay and external
measurement control" on page 16
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