Crowcon Gas-Pro - Fault Descriptions

49
9.2.1 Fault Descriptions
Fault
codes
Symtom/Error
Message
Icon Cause Action
0 or 9 Instrument won’t
switch on.
NA Flat Battery. Recharge battery.
N/A No condence
beep/ash.
NA Function disabled. Recongure with PC
software.
26 - 30,
58 - 62
Gas Reading with
no gas present.
NA Zero drifted. Zero the instrument in
clean air.
34 - 38,
50- 54,
58 - 62
Unstable/
inaccurate gas
reading.
NA Sensor failure. Do not use; exit
hazardous area
immediately. Send
instrument to authorised
service agent.
26 - 30,
34 - 38,
50 - 54,
58 - 62
Autozero failed.
Zeroing in a
contaminated
atmosphere.
Switch off and restart in
clean air.
26 - 30,
34 - 38,
50 - 54,
58 - 62
Cannot autozero
due to alarm.
Zeroing in a
contaminated
atmosphere.
Switch off and restart in
clean air.
67 Calibration
Expired.
The calibration due date
has passed.
Send instrument to
authorised service agent.
25 Calibration
Expired
The calibration due
date has passed and
“lock on cal due” has
been congured which
causes the monitor to go
inoperable*.
Send monitor to
authorised service agent
for calibration.
69 The pump stops.
The Pump is blocked. Clear the blockage.
70 N/A
The sensors are blocked
by the ow plate.
Clear the blockage by
removing the ow plate.
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