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:
c shows obvious damage
c does not carry out the desired measurements
c has been stored for too long under unfavourable conditions
c has been subjected to mechanical stress during transport.
The instrument may only be used within the operating ranges as
specified in the technical data section.
Avoid any heating up of the instrument by direct sunlight to ensu-
Z
re perfect functioning and long instrument life.
The opening of the instrument for fuse replacement, for example,
may only be carried out by professionals. Prior to opening, the
instrument has to be switched off and disconnected from any cur-
rent circuit.
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 enviro-
mental conditions and the usage in dry environments must be fol-
lowed.
When modifying or changing the instrument, the operational safety
is no longer ensured.
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