64171, Rev. 10/May 2019
3M™ GMI™ PS200 PORTABLE GAS MONITOR
OPERATION
3-8
6. MAX/MIN readings can be reset by pressing and holding the R button for 2 seconds when either
of the MAX/MIN screens are displayed.
After resetting, the monitor will return to the normal operating screen.
MAX/MIN/STEL/LTEL will be automatically reset during warmup, if the monitor is configured
for multi users.
3.6. Manual Datalog
Press the L button once to manually store the current gas readings. LOGGING appears on the moni-
tor as shown in
Figure 3-15: Manual Datalog
3.7. Alarms Reset or Acknowledge
When the monitor reaches an alarm set point, the audible, visual, and vibrating alarms will be acti-
vated to alert the user.
Alarms are individually programmable to be either:
• Latching - alarms are active until the user resets by pressing and holding the R button after the
gas readings have returned to a safe level.
• Non-Latching - alarms will reset automatically when the gas readings have returned to a safe
level.
The audible alarm on each pre-set alarm can be muted for 60 seconds by pressing and holding the R
button. After this time, should the gas value remain out with the pre-set alarm limit, the non-latching
audible alarm will become active again. If latching, the audible alarm will become active again
regardless of gas value.
3.7.1. CONFIDENCE SIGNAL
During normal operation, the monitor sounds a confidence beep and illuminates the green LED’s
briefly every 15 seconds. This function informs the user that the monitor is operating correctly.
3.8. Sample Line Connection and Use
The monitor has an internal pump for remote sensing. Connect the sample line tubing to the sample
. The pump is OFF after start-up.
NOTE: The operation of the confidence beep and/or LEDs is configurable.
