Sper Scientific 850037 Large Display Conductivity Pen - Manual (Page 52)

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BATTE
RY RE
PLACE
MENT
Note…
If the pen will not be in
use for a month or longer,
remove the batteries and
replace when ready to
use the pen.
BATTERY REPLACEMENT
1. Press
SET to turn the pen off.
2. Remove the battery cover located
on the top of the unit by rotating
counterclockwise. Do NOT discard the
black washer.
3. Remove the old batteries and replace
with 4 new LR44 batteries, ensuring
correct polarity.
4. Replace the battery cover by rotating in
the clockwise direction.