Siemens FIDAMAT 6-G, Operating Instructions Manual, Page: 121 / 160

Maintenance and service
6.4 List of maintenance requests
FIDAMAT 6-G
Operating instructions, 07/2006, A5E00478463
6-5
6.4 List of maintenance requests
The following messages entail a maintenance request (display in the status line and storage
in the logbook) with the FIDAMAT 6 and are signalized externally if you have configured a
corresponding relay with function 71.
With function 87, you can switch off each maintenance request individually, which includes
suppressing the display in the status line, storage in the logbook, as well as the external
signal.
Table 6-1 Maintenance requests
No. Signal Possible causes Remedy Remarks
Test gas was changed Repeat calibration W1 Calibration
difference too
great
Drift behavior due to
contaminated gas-
conducting lines
Check whether drift is
normal;
Check gas-
conducting lines for
contamination and
exchange, if
necessary.
Calibration tolerance,
see also function 78;
Drift of channel
according to technical
data:
Zero: 1 % of the full-
scale value/ week
Span: 1 % of the full-
scale value / week
W4 Set clock (function
58)
The device was shut
off
New input of date and
time
Function 58
Combustion air
pressure / sample gas
pressure is too high or
too low;
•
Check the seal of
the exhaust gas
restrictor
(restrictor 4)
•
Check piping
• Pressure sensor,
readjust with
pressure regulator
Combustion gas
pressure is too high or
too low;
See above
Limit values are
chosen too close.
See above
W5 Combustion air
pressure / gas
pressure
Sample gas feed
malfunction:
•
Exhaust restrictor
clogged
•
Leaky
lines/connections
•
External sample
gas feed defective
•
Sample gas feed
clogged
See above
The device changes to
the "warm-up phase"
operating state.
With firmware version
1.2 and higher, the
device will only leave
this state once the
maintenance request
has been
acknowledged.
W6 Temp. sensor LCD
display
Ambient temperature
lies outside of the
tolerances specified in
the technical data (5°C
to 45°C).
Make sure that the
ambient temperature
lies within the range
of 5°C to 45°C.
Exchange the display,
sensor defective.