8.1 Cleaning
If the instrument is dirty after daily usage, it is advised to
clean it by using a humid cloth and a mild household deter-
gent.
Prior to cleaning, ensure that instrument is switched off
and disconnected from external voltage supply and any
other instruments connected (such as UUT, control instru-
ments, etc.).
Never use acid detergents or dissolvants for cleaning.
After cleaning, do not use the voltage tester for a period of ap-
prox. 5 hours.
8.2 Calibration Interval
The instrument has to be periodically calibrated by our
service department in order to ensure the specified accura-
cy of measurement results. We recommend a calibration
interval of one year.
8.3 Battery Replacement
Prior to storage battery replacement, disconnect the
instrument from any connected test leads.
Only use accumulators as described in the technical
data section!
Please consider your environment when you dispose
of your one-way batteries or accumulators. They be-
long in a rubbish dump for hazardous waste. In most
cases, the batteries can be returned to their point of
sale.
Please, comply with the respective valid regulation re-
garding the return, recycling and disposal of used bat-
teries and accumulators..
66
Maintenance
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