Dräger Polytron 7000 Instructions For Use Manual page 31

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7.2 Warnings
Number
# 1
Cause
Measurement module can-
not detect a sensor.
Sensor data error in the
gas detector.
Gas detector does not sup-
port the sensor version.
Sensor data error in the
gas detector.
Zero adjustment failed
Span calibration failed
Sensor data error
Device error
Fresh air calibration failed
(1st step of automatic cali-
bration)
Sensor not ready for oper-
ation.
Sensor electrolyte has
evaporated.
Sensor lock is switched on.
A sensor with a different
part number than previ-
ously configured is
installed.
Contact between sensor
and measurement module
is faulty.
Sensor hardware fault.
Cause
Data error in the gas
detector – various func-
tions (e.g. for data storage)
can be impaired.
Dräger Polytron 7000
Troubleshooting
Remedy
Remove and re-install the sensor (see
section 5.2).
If the error persists, check the sensor
connector or replace the sensor.
Remove the sensor and install it
again.
If the error persists, have the gas
detector checked by DrägerService.
Use a compatible sensor as per spare
parts list.
Reset the sensor to the factory set-
tings (see section 11.6).
If the error persists, have the gas
detector checked by DrägerService.
Perform zero adjustment again (see
section 6.3).
Perform span calibration again (see
section 6.4).
Replace the sensor.
Check sensor contacts, otherwise
have the gas detector checked by
DrägerService.
Perform automatic calibration again
(see section 6.5), making sure that the
ambient air is free from foreign gas.
Replace the sensor.
Replenish sensor electrolyte.
Switch off the sensor lock (see
section 11.4) or use a new sensor with
the same part number.
Check sensor contacts. Remove and
re-install the sensor several times.
If the error persists, replace the sen-
sor.
Remove and re-install the sensor. If
the error persists, replace the sensor.
Remedy
Reset the gas detector to the factory
settings (see section 9.8).
If the error persists, have the gas
detector checked by DrägerService.