
PS200
PORTABLE GAS MONITOR
24
64171
5.4. Sensor Faults
If a sensor fault is detected, the backlight illuminates red, audible/visual alarms are activated,
and a wrench symbol is shown next to the faulty sensor.
5.4.1. Sensor Fault - LEL or O
2
If a sensor fault is detected for LEL or O
2
, as illustrated in
, return the
monitor to an approved service/repair facility.
Figure 34: LEL SENSOR FAULT
5.4.2. Sensor Fault - CO or H
2
S
If a sensor fault is detected for CO or H
2
S, as illustrated in
allow the monitor to run in clean air for 20 minutes. If the fault persists, return the monitor to an
approved service/repair facility.
Figure 35: CO/H
2
S SENSOR FAULT
5.4.3. Flow Fault (Pumped Monitors Only)
If a sample fault exists, the monitor displays a FLOW FAULT warning, as shown in
. The display will be red and both the audible alarm and red LED’s will be activated.
Check sample line, filter, or probe for blockage. Clear blockage, then restart pump by pressing
and holding the R button.
Revision 12
.1