3M GMI PS200 Series, Operation & Maintenance Manual

Page: 36 / 58

5-2
3M™ GMI™ PS200 PORTABLE GAS MONITOR
WARNINGS & FAULTS
64171, Rev. 10/May 2019
Figure 5-3: LEL ZERO Fail
To acknowledge this fault, press the R button once. This will clear the audible/visual alarms. The
wrench symbol
will remain on and ZERO FAULT is displayed as shown in
Figure 5-4: LEL ZERO
FAULT
.
Figure 5-4: LEL ZERO FAULT
Return the monitor to clean air and switch it OFF then ON. If the ZERO FAULT persists, return the
monitor to a 3M GMI approved service/repair facility.
A configurable option only allows the user to switch the monitor OFF if a ZERO FAULT is detected,
as shown in
Figure 5-5: ZERO FAULT – Switch OFF
.
Figure 5-5: ZERO FAULT – Switch OFF
5.3.2. ZERO FAULT – DURING OPERATION
If ZERO FAULT is displayed during instrument operation, then:
NOTE: The monitor can still detect and alarm on all other sensors.