PM/dust
Clean the optical engine mirror with a soft cloth, if it is dirty. Scratches will affect performance.
Avoid measuring wet particles, fogs, and liquid mists that will tend to cling to the impactor,
optical engine, tubing, and pump surfaces.
Avoid oily mists as found near some machining operations.
This monitor is designed to measure dry particulates, not filaments.
DO NOT attempt to measure Asbestos with this instrument.
Keep a "Pump Protection Filter" or other gravimetric filter in place to help prolong the life of the
pump.
You must check and calibrate the flow rate, when using this device as a (gravimetric) sampling
pump.
This instrument cannot detect methane gas.
For best sensor life, avoid acidic condensing gases.
The presence of moisture can affect performance of the PID.
Beware of certain cross-sensitivities when measuring toxic gas levels. Readings can be
nonspecific in the presence of certain cross-contaminant gases.
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