KANOMAX 3910 Portable Particle Counter User Manual - Manual (Page 82)

9. Troubleshooting 74
9. Troubleshooting
Symptom Possible Cause Maintenance
Cannot obtain Zero Count
(When using a filter)
1) The inside of the optical system may
be dirty.
Attach the zero filter and perform purging for a
prolonged time.
After performing a measurement in a highly
concentrated environment, attach the zero filter and
perform purging.
2) The filter’s air tightness may be
deteriorated.
Replace your zero filter.
3) Leaks may be occurring inside the
instrument.
Return the instrument to your distributor or to your
KANOMAX service center for repair.
Count value is too high
(Higher than the expected)
1) The particle concentration at the
measurement site may be high.
-
2) The inside of the optical system may
be dirty.
Attach a zero filter and perform purging for a
prolonged time.
After performing a measurement in the highly
concentrated environment, attach the zero filter and
perform purging.
3) The instrument may be being used
outside the operating environment
defined in the specifications.
(Measurement Environment Temperature
/ Humidity / Concentration etc)
Use the instrument under the environmental
conditions set in the specifications.
If you have checked the above 1), 2)
and 3), and the instrument readings
are still too high, the instrument may
require calibration or repair.
Contact your distributor or your KANOMAX service
center for repair or calibration.
Count value is too low
(Lower than the expected)
1) The particle count at the measurement
site may be low. -
2) The pump vacuum is low. Pay attention to the pump performance.
Check if an error status is displayed on the screen.
3) The instrument may be being used
outside the operating environment
defined in the specifications.
(Measurement Environment Temperature
/ Humidity / Concentration etc)
Use the instrument under the environmental
conditions set in the specifications.
4) If you have checked the above 1), 2)
and 3), and the instrument readings
are still too low, the instrument may
require calibration or repair.
Contact your distributor or your KANOMAX service
center for repair or calibration..
The output of the option
sensors is not displayed.
1) The sensor may not be connected
properly.
Check the option sensor connection.
Touch panel becomes
unresponsive
1) The touch panel may be damaged. Return the instrument to your distributor or to your
KANOMAX service center for repair.