3M GMI PS200 Series User Manual

64171, Rev. 10/May 2019
3M™ GMI™ PS200 PORTABLE GAS MONITOR
OPERATION
3-7
Figure 3-13: 4-Gas Normal Operating Display
3.4. Switch the Display Backlight On/Off
The display backlight can be manually switched ON when working in poor lighting conditions.
Press the R button once to switch ON. After 20 seconds it will automatically switch OFF.
3.5. View MAX/MIN/STEL/LTEL
The monitor records the maximum (MAX) and minimum (MIN) gas values since switch-on. It also
evaluates the short-term exposure (STEL) and long-term exposure (LTEL) for CO and H
2
S.
To view MAX/MIN/STEL/LTEL:
1. From the normal operating display, press the R button once to switch the monitor backlight ON.
2. While the backlight is still ON, press the R button once to view the MAX gas values.
3. Press the R button a 2
nd
time to view the MIN gas values.
4. Press the R button a 3
rd
time to display the STEL values.
5. Press the R button a 4
th
time to display the LTEL values.
Figure 3-14: MAX/MIN/STEL/LTEL Gas Values illustrates the MAX, MIN, STEL, and LTEL values on a
4-gas monitor.
Figure 3-14: MAX/MIN/STEL/LTEL Gas Values
NOTE: The MIN is only displayed if an Oxygen sensor is fitted in the monitor.

3M GMI PS200 Series Specifications

General

Brand	3M
Model	GMI PS200 Series
Category	Measuring Instruments
Language	English