TESTO TE623 Mode D'emploi page 41

7 Maintaining the product
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Changing batteries/rechargeable batteries
CAUTION
Incorrectly inserted batteries / rechargeable batteries can
damage the instrument!
> Observe the polarity when inserting the batteries /
rechargeable batteries.
1. Open the battery compartment on the rear of the instrument.
2. Remove spent batteries / rechargeable batteries from the
battery compartment and insert new batteries / rechargeable
batteries (type AA)
- Instrument turns on automatically.
3. Close the battery compartment.
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Cleaning the instrument
> If the housing of the instrument is dirty, clean it with a damp
cloth.
Do not use any aggressive cleaning agents or solvents! Weak
household cleaning agents or soap suds can be used.
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If the power supply is interrupted the settings are being
saved for at least 3 min.
If the instrument is not used over a longer period, the
batteries/rechargeable batteries should be removed from
the instrument to prevent damage to the instrument and the
batteries/rechargeable batteries.
Do not clean the instrument with compressed air, otherwise
the sensor may be damaged.
7 Maintaining the product
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