MRK-D-0034 V2.0
Aeroqual AQM 65 User Guide
Page | 82
The service frequencies should be considered conservative. Instrument operators are encouraged to develop a service schedule suitable for their local conditions and data
quality objectives.
Scheduled maintenance
Service activity
Section reference
Service frequencies
Gas inlet filter change
Section 4.4.2
4-12 weeks
Initially 4 weeks
. Later this can be modified to suit local conditions and data quality objectives
PM inlet filter change
Section 4.4.4
4-12 weeks
Initially 4 weeks
. Later this can be modified to suit local conditions and data quality objectives
Gas inlet flow check
Section 4.4.3
4-12 weeks
Initially 4 weeks
. Later this can be modified to suit local conditions and data quality objectives
PM inlet flow check
Section 4.4.5
4-12 weeks
Initially 4 weeks
. Later this can be modified to suit local conditions and data quality objectives
Gas inlet flow adjustment
Section 4.4.3.3
Adjust as required following gas inlet flow check
PM inlet flow adjustment
Section 4.4.5.2
Adjust as required following PM inlet flow check
Clean TMS cassette
Section 4.4.12.3
The TMS cassette should be checked and cleaned when required (every
3 to 6 months
typical)
PM leak check
Section 4.4.6
Every
3 months
(Quarterly)
PM zero calibration check
Section 4.4.7.1
Every
3 months
(Quarterly)
PM zero calibration flow check
Section 4.4.7.2
Every
3 months
(Quarterly)
PM inlet cleaning
Section 4.4.8
Every
3 months
(Quarterly)
Change gas flow pump
Section 4.4.9
Every
12 to 18 months
or if flow rate cannot be set correctly
Change Particle Monitor flow pumps
Section 4.4.9
Every
12 to 18 months
or if flow rate cannot be set correctly
Factory calibration of Particle Monitor
Section 4.5
Every
24 months
(2 years)
Factory calibration of Particle Profiler
Section 4.5
Every
12 months
(1 year)
Gas module calibration
Section 5.1
See section 5.1
Unscheduled maintenance
Measure flow rate of gas modules
Section 4.4.3.2
As required following gas inlet flow check
Leak check a gas module
Section 4.4.10
As required following module flow check
Recharge compressor with gas
Section 4.4.12.4
As required or when directed by Aeroqual technical support
Add, remove, replace gas module
Section 4.4.11
As required
Table 4-1 Service frequency guidelines for various service activities