40 GB/IE/NI
product failing to work, remove the
batteries for a short while and then
replace them. Do this as described in
the
section “Inserting / changing the
batteries“.
Maintenance and
cleaning
The product is maintenance-free.
CAUTION! Never submerse the product
in water or other liquids. Do not allow any
moisture to penetrate into the product
during cleaning.
Clean the laser beam output opening
15
and the receiver lens
16
with a
soft dry cloth gently. In the case of
more serious contamination, remove
the dirt with a dry cotton swab gently.
Do not exert any strong pressure!
Never use liquids or detergents, petrol,
solvents or other cleaning agents that
attack plastic.
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