Other Faults - Siemens FIDAMAT 6 Operating Instructions Manual

Service and maintenance

7.6 Other faults

7.6 Other faults
Regularly calibrate the device at the zero point (function 20) and span (function 21) with the
corresponding calibration gases in accordance with the drift data. Make sure the gases are
purified properly.
A larger zero drift is usually a sign that residues or dust particles have deposited in the FID.
The following faults are not signaled or stored by the device, but are only detectable based
on characteristic measured values.
Table 7- 3
Fault
Large positive zero drift
Large span drift
Span depends strongly on flow
See also
Zero calibration (function 20) (Page 66)
Span calibration (function 21) (Page 67)
Cleaning the device (Page 129)
General technical data of the FIDAMAT 6 gas analyzers (Page 149)
136
Other faults
Possible cause and its elimination
Check gas preparation system
•
Clean FID
•
Detector leaky
•
FID nozzle defective
•
Exhaust gas line is congested/clogged, e.g. by
water condensation
Operating Instructions, 03/2018, A5E00222135-03
FIDAMAT 6