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Aeroqual AQM60 User Guide
7.4.7. Laser Current Check.
To determine the laser current
go to “Diagnostics”
“Sensor Diagnostics View”. The column titled “PM10
Laser (mA)
” will provide the laser current. If the laser current has drifted up or down by more than 3mA, the
engine may need servicing; please contact Aeroqual for advice.
Note: The laser current should be stable at 18 ±3 mA
7.4.8. Filter Changes
There are two internal filters which are located on the side of the optical engine. They are designed to
provide protection and clean purge air. These will become dirty and must be replaced periodically.
To do this, unscrew the filters from the side of the optical engine and replace with new filters. These can be
purchased from Aeroqual. Please contact technical support for a quotation.
7.4.9. Cyclone and Inlet Cleaning
The dust cap of the sharp cut cyclone will accumulate particulate matter and will need to be periodically
cleaned. Blow out the cyclone with compressed air and unscrew the dust cap and clean. Replace the cap
tightly and ensure there are no potential leaks.
The cyclone can be disassembled completely by removing the three Allen head screws and pulling it apart.
The internal parts should be cleaned with isopropyl alcohol once a year.
Allen head
screws
Dirty
Filter
Purge
Filter
Sample
Filter
Clean
Filter
Summary of Contents for AQM60
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