PARTICLE COUNTER / EN
09/15/17 Version No. 00
19
8. MAINTENANCE
Warning
The Meter contains no user-serviceable parts. To avoid electric shock, injury,
or damage to the meter, do not open the meter.
Use the zero count filter to ensure that the meter filter is free of contamination. Refer
to “Purging the Meter”.
8-1 Cleaning the Case
Periodically wipe the case with a damp cloth and mild detergent.
Caution
To avoid damaging the meter, do not use abrasives or solvents to clean the
meter case.
8-2 Charging the battery and using the AC adapter
Recharge the battery as soon as “LOW BATTERY” appears on the display.
The battery symbols on the display show the status of the battery:
++ The battery is in “Fast Charge” mode.
The ac adapter is connected and the battery is charging. When
the battery is below 95 % of its charge, the meter uses “Fast
Charge” mode to bring the battery back up to 95 %.
+ The battery is in “Trickle Charge” mode. Once 95 % of the charge
is attained, the meter switches to “Trickle Charge” mode to charge
the remaining 5 % of the battery.
- - The battery is in “Precharge” mode.
The battery is fully charged.
The battery is partially charged.
The ac adapter is used to recharge the battery as well as power the meter.
This feature allows the meter to be used while the battery is charging.
