Instruction Manual

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
Selecte d se ttin gs are stor ed in
memory and will remain in memory
even after power is turned off, or while
batteries
are being replac ed.
1. Before changing batter y , tur n
instrume
nt off and disconnect RTD .
2.
Loosen screw and lift batter y cover
off back of case.
3.
Remove the t hree AA batteries.
4. Insert three
new batteri es observing
pol
arit y .
- 6 -
5.
Install
cover and tig h ten screw .