Siemens 7MB2335, Operating Instructions Manual, Page: 102 / 168

Maintenance
6-4
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
Table 6-1 Fault messages
Fault message Remedy Possible causes
Flow too low during measuring Sample gas path blocked or
leaky Clean or replace the blocked
parts (hose, filter etc.). If the
problem is still present:
Pump not running Switch the pump on.
Pump capacity too low Increase the pump capacity as
described in Section 5.9.4.1.
Pump faulty
No data for temperature
compensation Temperature compensation not
completed successfully
New components have been
loaded
EEPROM has been initialized
Flow too low during AUTOCAL CAL gas path blocked or leaky Clean or replace the blocked
parts (hose, filter etc.). If the
problem is still present:
Pump not running Switch the pump on.
Pump capacity too low Increase the pump capacity as
described in Section 5.9.4.1.
Pump faulty
Conc. of O
2
too low during
AUTOCAL
M
l di l *****
O
2
sensor faulty or old Replace the O
2
sensor as
described in Section 6.2.1.
Meas. value display: *****
O
2
sensor zero not calibrated Calibrate the zero of the O
2
sensor as described in Section
5.8.2.2.
Fault at analog output Component could not be
initialized when switching on
Limits were violated when
calibrating the analog section
General fault of all IR channels
MV C1/2/3 b
d t l
Chopper faulty
MV-C1/2/3 beyond tolerance
IR source faulty
Fault of addresses for IR
channels Plug-in jumper on detector for
detection of components not OK
The cable of the detector has no
contact Check that the plug is correctly
connected to the detector (the
plug must latch in twice).
Cable of detector faulty