KANOMAX 3522 Piezobalace Dust Monitor - Manual (Page 24)

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8. Regular Maintenance and Impactor Nozzle Replacement
Regular maintenance is required to ensure the long-term accuracy and performance of the
instrument.
In order to maintain the initial accuracy, it is recommended that the sensor and impactor plate be
cleaned before and after use. If the instrument is used for a long time, or used in a high
concentration environment, periodical cleaning of the needle is recommended.
8.1 Impactor Cleaning
The impactor knob can be removed by turning it counter-clockwise. The impactor nozzle can also
be removed by turning it counter-clockwise. To clean the impactor knob, wipe off the dust
accumulated on the impactor plate with a neutral detergent or alcohol. To clean the impactor
nozzle, blow clean air from the inlet to remove the dust. If water or alcohol is used, be sure to
fully dry the parts before re-assembling.
Note:
If a large amount of dust has accumulated on the impactor plate, rescattering may prevent accurate
measurement.
Impactor knob
Impactor plate
Impactor nozzle
Impactor body