4. BATTERY INSTALLATION AND
REPLACEMENT
The total battery life without
backlighting is about 400 hours.
Remaining battery power is indicated
by the battery life indicator.
Indicator Voltage
Cell + 3 bars
More than 4.1 V
Cell + 2 bars
More than 3.6 V
Cell + 1 bars
More than 3.0 V
Cell + empty bars
flashing
More than 2.85 V
Adaptor power
supply
Main power supply
connected
USB power supply
USB power
Selected settings are stored in
memory and will remain in memory
even after power is turned off, or while
batteries are being replaced.
1. Before
changing battery, turn
instrument off and disconnect RTD.
2. Loosen screw and lift battery cover
off back of case.
3. Remove the three AA batteries.
4. Insert
three
new batteries observing
polarity.
- 6 -
5. Install cover and tighten screw.