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MP100 User’s Guide
4.
Take off the Calibration Adapter and complete calibration.
When monitoring, never operate the MP100 with the Calibration Adaptor attached. The
MP100’s sensor operates by diffusion. If the Calibration Adapter is attached during normal operation, inconsistent and lower-than-normal readings will occur because of decreased concentration of the gas being monitored.
Zero calibration
Zero calibration is to set the base line for the sensor, it is done in fresh air. When LCD displays , press the Left Key to start zero calibration. The unit will start a 15 second count-down, after the count-down is finished, zero calibration result will be displayed on the LCD, pass or fail .
If user does not want to do zero calibration, during the 15 seconds count, press the Right Key,
LCD displays , zero calibration is aborted.
Span calibration
Span calibration is to set the metric of the sensor to the gas, 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 span calibration. Unit will start count-down, the count-down time depends on
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