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Aeroqual AQM60 User Guide
8.2.
Particle Monitor/Profiler
Symptom
Possible Cause
Fault isolation/Solution
PM values seem incorrect
Sample flow incorrect
Sample and/or purge filters
dirty
Gain factors incorrect
Offset factor incorrect
Check sample flow and adjust to correct
value using flow adjusters
Replace filters
Perform span calibration
Perform zero calibration
Low Sensitivity
Laser is old
The laser current can be
measured in diagnostics mode
using AQM60 software. If
above 20 mA then fault
Laser needs replacing.
Send to your authorised distributor or
contact Aeroqual technical support.
Low Sensitivity
Dirty optics
Optics need cleaning
Send to your authorised distributor or
contact Aeroqual technical support.
High baseline (H0)
Dirty optics
Optics need cleaning
Send to your authorised distributor or
contact Aeroqual technical support.
COMMUNICATION
No communication over
RS232
RS232 cable disconnected
Control Module Failed
Reconnect cable.
Replace Control Module.
PC Data logging stopped
AQM power blackout
interrupted data logging
USB to serial hub not working
Close and restart AQM software.
Check USB connectors. Check the serial
hub is present on the device hardware
menu in the PC. If not reload driver
software and re-install.
No data on SD card
Card not correctly installed in
slot
Data logging interval set too
large
Data card module fault
Turn off AQM and install card in slot
correctly.
Set logging interval in configuration to a
lower interval.
Send control module to factory for
replacement module.
Summary of Contents for AQM60
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