Siemens ULTRAMAT 23, Manual, Page: 179 / 244

Error and system messages
11.2 Faults
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003
179
Message Possible causes Remedy
Pressure of ambient air beyond toler-
ance
Pressure sensor faulty
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: Inform the service department
Pump not running Start the pump as described in section
Configuration: Inputs/outputs/pump
(Page 134)
Pump capacity too low Increase the pump capacity as de-
scribed in section Parameters:
Pump/LCD contrast: Pump (Page 130)
Pump faulty Pump must be replaced. Inform the
service department
No data for temperature compensa-
tion
Temperature compensation not com-
pleted successfully
New components have been loaded
EEPROM has been initialized
Download the factory data as described
in section Configuration: Special func-
tions: Factory data/reset/units: Load
factory data (Page 149)
Flow too low during AUTOCAL Sample gas path blocked or leaky Clean or replace the blocked parts
(hose, filter etc.). If the problem is still
present: Inform the service department
Pump not running Start the pump as described in section
Configuration: Inputs/outputs/pump:
Pump at CAL/MEAS (Page 142)
Pump capacity too low Increase the pump capacity as de-
scribed in section Parameters:
Pump/LCD contrast: Pump (Page 130)
Pump faulty Pump must be replaced. Inform the
service department
Concentration of O
2
too low
Measured value display: *****
O
2
sensor faulty or no longer usable as
result of aging
Replace the O
2
sensor as described in
section Replacing the electrochemical
oxygen sensor (Page 171)
O
2
sensor zero not calibrated Calibrate the zero point of the O
2
sensor
as described in section Calibration:
Electrochemical oxygen measuring
range (Page 114)
Fault at analog output Output component could not be initial-
ized when switching on
Limits were violated when calibrating the
analog section
General fault of all IR channels
Measured value display: '*****'
Chopper 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 con-
nected to the detector (the plug must
latch in twice).