64171, Rev. 10/May 2019
3M™ GMI™ PS200 PORTABLE GAS MONITOR
ALARMS
4-3
Figure 4-3: Over Range Alarm
4.4.1. 10 SECOND SWITCH OFF
The monitor must be returned to clean air.
Switch OFF by pressing and holding both buttons. A timer counts down from 10 seconds to 0, and
the message GET OUT alternates with HIGH GAS, as shown in
Figure 4-4: GET OUT/HIGH GAS Timer.
Figure 4-4: GET OUT/HIGH GAS Timer
NOTE: To avoid accidental switch-off in this dangerous state, the off cycle is increased to
10 seconds.
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