PM400 Multi-Gas Personal Monitor
REV – 2.0
[34-2900-0206-2 ]
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P a g e
5.
Press and hold the [Function] key for three seconds to enter the Calibration menu. CAL ZERO displays.
6.
Press the [Function] key once to advance to the Span Calibration screen. CAL SPAN displays.
7.
Press and hold the [Function] key for five seconds to begin Span calibration. A 90-second countdown timer
appears in the lower right corner while the display cycles through detected values of each gas.
8.
Turn on the regulator and wait for the timer to reach zero.
9.
After a successful calibration, the Calibration Success screen displays.
10.
After the calibration is complete, be sure to turn off the calibration gas.
If calibration fails, the gas(es)/sensor(s) that failed are displayed. This failed calibration message continues to flash
on the display until a successful calibration is performed.
Clear the peak values, perform a Zero calibration and try again. If calibration continues to fail, please contact your
sales representative or AimSafety Technical Support at
WARNING
All alarms are muted for approximately one minute after a successful span calibration.
Default Calibration gas concentrations.
