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4. BATTERY INSTALLATION AND
REPLACEMENT
The total battery life without
backlighting and alarm is about 400
hours. The battery bar annunciator
represents the battery strength. An
empty battery annunciator indicates low
battery strength; a blinking battery
annunciator
indicates that the batteries
should be replaced immediately
.
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
thermocoupl
e.
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
.
5.
Install
cover
and
tig
h
ten
screw
.
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