KANOMAX 3443 Digital Dust Monitor - Manual (Page 46)

6. Troubleshooting 40
6.3 Zero Check
Symptom Possible Cause / Solution Refer to
Rubber cap may not be put on the inlet or may not be inserted properly.
Put the rubber cap on properly.
2
Filter may be clogged.
Replace the filter with a new one.
35
Inside the optical system may be dirty.
Relatively light particles such as carbon or resin could enter inside the
optical system, which could result in Zero point rise.
Perform a cleaning well (for at least 10 minutes).
If it does not become stable even after cleaning, the instrument needs to
be disassembled for further cleaning.
Please contact your distributor or KANOMAX service center.
7
Zero is not stable
The instrument may not be used under the specified usage environment.
Operating temperature limit is 5 ~ 40 ˚C and humidity limit is 95 %RH
or lower.
36
The sensitivity check knob may not be at the “ZERO” side.
Put it back to “ZERO” side.
2
Zero adjustment cannot be
performed.
The instrument may not be used under the specified usage environment.
Operating temperature limit is 5 ~ 40 ˚C and humidity limit is 95 %RH
or lower.
36
6.4 Sensitivity Check
Symptom Possible Cause / Solution Refer to
The sensitivity check knob may not be at the “FULL” side.
Put it back to “FULL” side.
2
The value is lower than the
standard count value. The
reproducibility is not good.
The instrument may not be used under the specified usage environment.
Operating temperature limit is 5 ~ 40 ˚C and humidity limit is 95 %RH
or lower.
36
The instrument may not be used under the specified usage environment.
Operating temperature limit is 5 ~ 40 ˚C and humidity limit is 95 %RH
or lower.
36
Sensitivity cannot be
adjusted.
The sensitivity may be beyond the specified sensitivity adjustment
range or the light source may be deteriorated.
Please contact your distributor or KANOMAX service center.
8