Care And Maintenance - testo 922 Manual De Instrucciones

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7. Care and maintenance

7. Care and maintenance
This chapter describes the steps that help to maintain the
functionality of the product and extend its service life.
Cleaning t t he h h ousing:
Clean the housing with a moist cloth (soap suds) if it
is dirty. Do not use aggressive cleaning agents or
solvents!
Changing t t he b b attery/rechargeable b b attery:
The instrument is switched off.
To open the battery compartment on the rear of the
1
instrument, push the lid of the compartment in the
direction of the arrow and remove it.
Remove the spent battery/rechargeable battery and
2
insert a new battery/rechargeable battery (9 V mono-
bloc). Observe the polarity!
To close the battery compartment, replace the lid of
3
the compartment in position and push it against the
direction of the arrow.
If the voltage supply had been interrupted for a long
period, the date/time and unit of measurement will have
to be reset:
- The instrument switches itself on and configuration
mode is opened.
Set the date/time and unit of measurement.
See the chapter
S
ETTING THE DATE
P
ERFORMING SETTINGS
and following.
/
TIME
, objectives