TESTO 720, Инструкция по эксплуатации

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7. Care and maintenance 32
7. Care and maintenance
This chapter describes the steps that help to maintain the
functionality of the product and extend its service life.
±
Cleaning tthe hhousing:
i
Clean the housing with a moist cloth (soap suds) if it
is dirty. Do not use aggressive cleaning agents or
solvents!
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Changing tthe bbattery/rechargeable bbattery:
The instrument is switched off.
1
To open the battery compartment on the rear of the
instrument, push the lid of the battery compartment in
the direction of the arrow and remove it.
2
Remove the spent battery/rechargeable battery and
insert a new battery/rechargeable battery
(9 V monobloc). Observe the polarity!
3
To close the battery compartment, replace the lid of
the battery compartment in position and push it
against the direction of the arrow.