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12
6
Device Operation
6.1
Power B
utton
:
•
Press the
“
”
button to turn ON the power. The
display comes alive.
•
Press the
“
”
button once again to turn OFF the
power and put the device into sleep mode. The
display changes from light to dark.
6.2 Zero
Button
:
•
Press the
“
“button
for the zero adjustment if any
digits are
appearing when the sensor is covered.
•
If performing the zero adjustment after powering
on, several digits may not disappear. In this case,
perform the zero adjustment again.
6.3
B
acklight
D
isplay:
•
Press
“
”
key
to turn
backlight
on. Press
the
“
”
button
again
to power off
.
•
Backlight light turns off automatically after
30
seconds.