MicroRAE User’s Guide
20
5.2. Battery States
The battery icon on the display shows how much charge is in the battery and alerts you to any
charging problems.
Battery low 1/3 charge
2/3 charge
Full charge
When the battery’s charge falls below a preset voltage, the instrument warns you by beeping once
and flashing once every minute. The instrument automatically powers down within 10 minutes,
after which you will to recharge the battery.
6. External Filter
The External Filter (M03-3009-000) is designed to prevent debris from entering the MicroRAE in
dirty or dusty environments. Align the filter over the sensor openings and tighten the Philips
screw to secure it in place. Replace the filter when it appears dirty.
