KANOMAX 3443 Digital Dust Monitor - Manual (Page 45)

6. Troubleshooting 39
6. Troubleshooting
6.1 Check Power
Symptom Possible Cause / Solution Refer to
- When using battery: The battery is exhausted.
=> Turn the power off and charge the battery.
4 Even when the power switch
is turned ON, on-screen
display does not appear or
display goes off quickly.
- When using AC adapter: The dedicated adapter is not being used.
=> Make sure to use the dedicated AC adapter.
5
Even after replacing batteries
with new ones, the screen
does not show up.
- The polarity of the batteries may be reversed.
=> Check if the batteries are inserted properly.
4
Batteries die very quickly.
Different type of batteries may be used.
Exhausted batteries and new batteries may be mixed.
4
The batteries may not have been charged fully.
=> Charge the batteries fully referring to the operation manual supplied
with the NiMH batteries.
4
When using NiMH batteries,
the batteries die very quickly.
The NiMH batteries may be deteriorated.
=> Purchase new NiMH batteries.
4
6.2 Check while Measuring
Symptom Possible Cause / Solution Refer to
Rubber cap may be put on the inlet.
Remove the rubber cap and then insert the removed rubber cap to the
cleaning air vent to perform a measurement.
2
Count value remains 0.
The exhaust port may be blocked.
Remove the things that block the exhaust port.
2
The rubber cap may not be inserted to the cleaning air vent.
Insert the rubber cap properly before starting a measurement.
2
Count value is too low. Compare the count value upon checking the sensitivity to the standard
count value.
If the count value upon checking the sensitivity is more than 5% lower
than the standard value, calibrate the unit to check the sensitivity.
8
The sensitivity check knob may still be at “FULL” side.
Turn the knob fully to the “ZERO” side.
2
Count value is too high. Compare the count value upon checking the sensitivity to the standard
count value.
If the count value upon checking the sensitivity is more than 5% higher
than the standard value, calibrate the unit to check the sensitivity.
8