The respective accident prevention regulations established by the
professional associations for electrical systems and equipment
must be strictly met at all times.
Avoid any heating up of the instrument by direct sunlight to ensure
perfect functioning and long instrument life.
If the operator’s safety is no longer ensured, the instrument is to be
put out of service and protected against use. The safety is no lon-
ger insured, if the instrument:
• shows obvious damage
• does not carry out the desired measurements
• has been stored for too long under unfavourable conditions
• has been subjected to mechanical stress during transport.
Appropriate Usage
The instrument may only be used under those conditions and for
those purposes for which it was conceived. For this reason, in par-
ticular the safety references , the technical data including environ-
mental conditions (and the usage in dry environments must be fol-
lowed.
When modifying or changing the instrument, the operational safe-
ty is no longer ensured.
The instrument may only be opened by an authorised service tech-
nician, e.g. for fuse replacement.
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