Chapter 1. Getting Started
2
Model PM880 Portable Hygrometer User’s Manual
1.1 Charging the Battery Pack
The PM880 is powered by a rechargeable NiMH battery pack. When you
receive the PM880, you will need to fully charge the pack. The pack must
be charged for 4-5 hours, until the amber LED on the charger goes out, to
receive the maximum charge. When fully charged, the pack provides 16 to
24 hours of continuous operation, depending on the probe type and the
PM880 usage. An internal battery gauge indicates the remaining power in
the pack.
Before charging the battery pack, make sure the charger is properly
configured. Use the instructions below:
1.1.1 Removing the Battery Pack
1.
Make sure you are in a general-purpose location where you can safely
charge the pack.
WARNING!
THE BATTERY PACK CAN BE INSTALLED AND REMOVED IN
HAZARDOUS AREAS, HOWEVER, IT MUST BE CHARGED IN
GENERAL-PURPOSE AREAS ONLY.
2.
Remove the four thumb screws on the back panel of the PM880 that
secure the pack.
3.
Lift the pack out of the unit.