Unacceptable Quality Control Test Results; Other Issues - MAGEE Scientific Aethalometer AE33 User Manual

Aethalometer
Model AE33
16384 AutoCleanAir
test status
32768 CF card failure
65536 Database size
warning

13.3 Unacceptable quality control test results

Test Criteria
Flow Measured flows differ by
verification more than 10 %
Leakage test ζ > 10 %
Stability test PPBC61 > 450 ng/m
Clean air test PPBC61 > 550 ng/m

13.4 Other issues

Issue description
Reported flow <> set flow
Overlapping spots on filter
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User's manual – Ver. 1.55
Result of clean air test
is not acceptable
Database size reaching
limit
Solution
Calibrate flow
Use good flow calibrator
Verify use of correct flow reporting standard
Lubricate optical chamber sliders
Clean the optical chamber
Possible electronics problem
Clean the optical chamber
Check for air-conditioning effects
Possible cause
Flow not calibrated
Tape sensors need
adjustment or
calibration
July 2017
Service of the instrument is
recommended.
CF card needs to be replaced.
Contact support.
Delete old data
Solution
calibrate flow
increase value of "TA adjust"
parameter
perform tape sensor calibration
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