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Maintenance and service
6.6 Other errors
No.
S14
S15
See also
Relay allocation (function 71) (Page 5-40)
Binary inputs (function 72) (Page 5-42)
Save data, load (function 75) (Page 5-50)
Error on/off (function 87) (Page 5-60)
Start-up state (function 91) (Page 5-62)
6.6
Other errors
Regularly calibrate the device at the zero point (function 20) and with regard to span
(function 21) with the corresponding test gases in accordance with the drift specifications.
Make sure the gas preparation is clean.
A larger zero drift is usually a sign that residue or dust particles have deposited in the FID.
The following errors are not signalized or stored by the device, but are only detectable based
on characteristic measured values.
Table 6-3
Fault
Large zero drift toward +
Large span drift
Span depends strongly on flow
See also
Zero calibration (function 20) (Page 5-13)
Span calibration (function 21) (Page 5-13)
Cleaning the device (Page 6-3)
Technical data of the FIDAMAT 6 series (Page 7-1)
6-8
Fault signal
Explanation
Measured value
Measured value is
>
greater than
Characteristics
characteristics end
end value
value (+5 %)
Calibration
terminated
Other faults
Possible causes
Remedy
Incorrect
•
•
calibration
•
Wrong test gas
•
•
Sample gas
•
concentration too
high
During an Autocal,
the process was
terminated
Possible cause and its remedy
Check gas preparation
•
Clean FID
•
Detector leaky
•
FID nozzle defective
•
Exhaust gas line is congested/clogged, e.g. by
water condensation
Operating instructions, 07/2006, A5E00478463
Repeat calibration
Check test gas
Check measuring range
FIDAMAT 6-G
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