Fault – Cause – Remedy
Page 28 of 72 Pages
9023927 - 2nd edition - May 2007
Fault – Cause – Remedy
The fault and warning numbers shown in the following tables are displayed in the
menu under » Information «, » Instrument «, » Fault « or » Warnings « – see page 36.
Fault number
Cause
Remedy
# 1
Serious data error in unit –
various causes.
Initialise the unit with the menu items » Settings «,
» Instrument «, » Init. device «, page 49.
If this error occurs again:
Have the Polytron 7500 checked by suitably qualified per-
sons e.g. service personnel from Dräger Safety.
# 2
Serious unit fault –
various causes.
Have the Polytron 7500 checked by suitably qualified per-
sons e.g. service personnel from Dräger Safety.
# 61
Data error on the interface card –
various causes
Have the Polytron 7500 checked by suitably qualified per-
sons e.g. service personnel from Dräger Safety.
# 63
Hardware or software fault in the pyrolysis
module.
Have the Polytron 7500 checked by suitably qualified per-
sons e.g. service personnel from Dräger Safety.
# 64
Gas flow of the pump falls below the warn-
ing threshold.
Reliable measurements are no longer pos-
sible.
Check the hoses for blockages,
If necessary adjust pump flow.
# 65
Open-circuit in 3-wire cable.
Check the connections.
# 67
Bad contact of the relay module.
Check the connection of the relay module.
# 100
Unit cannot detect a sensor.
Remove the sensor and install it again, page 23.
Check the sensor plug or install a new sensor.
# 101
Sensor data error in the unit.
Remove the sensor and install it again, page 23.
If this error occurs again: Have the Polytron 7500 checked
by suitably qualified persons e.g. service personnel from
Dräger Safety.
# 102
Unit does not support this
sensor version.
Use a compatible sensor, see page 23.
# 103
Sensor data error in the unit.
Initialise the sensor with the menu items » Settings «,
» Sensor «, » Sensor-EC «, » Init. sensor «, page 58.
If this error occurs again: Have the Polytron 7500 checked
by suitably qualified persons e.g. service personnel from
Dräger Safety.
# 106
Zero point not correctly.
Zero point calibration, page 39.
# 107
Sensitivity calibration not executed cor-
rectly.
Repeat sensitivity calibration, page 40.
# 108
Sensor data error.
Replace the sensor, page 23.
# 109
Unit fault.
Check the sensor contacts. If this does not help, have the
Polytron 7500 checked by suitably qualified persons e.g.
service personnel from Dräger Safety.
# 121
Fresh-air calibration (first step of autocali-
bration) not executed correctly.
Repeat autocalibration, page 41. making sure that the ambi-
ent air is free of other gases.
# 125
Sensor not ready.
Replace the sensor, page 23.
