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MP100 User’s Guide different sensors (normally 60 seconds), after count-down is finished, span calibration result will be displayed on the LCD, pass or fail .
If user does not want to do span calibration during count-down, press the Right Key, LCD displays , span calibration is aborted.
Bump test
Bump test is to check if sensor and alarm devices are working properly, it is done with a known concentration gas. When LCD displays , apply the known gas to the unit, then press the Left Key to start bump test. Unit will start count-down, the count-down time depends on different sensors (normally 45 seconds), after count-down is finished, bump test result will be displayed on the LCD, pass or fail .
If user does not want to do bump test during count-down, press the Right Key, LCD displays , bump test is aborted.
Change alarm limit
All the preset alarm limits, High, Low, STEL & TWA can be changed. When LCD displays:
, , , to change the corresponding alarm limit, the value change process is similar.
, press the Left Key
. First the current setting value is displayed, with the first digit flashing:
10
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