Opal DT-9121, Руководство по эксплуатации

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The voltage testers may no longer be used if one or several
functions fail or if no functionality is indicated.
Do not use this instrument under damp conditions.
Perfect display I sonly guaranteed within a temperature
range of -10 up to +55 , at relative humidity question
℃ ℃
<85%.
If the operator’s safety cannot be guaranteed, the
instrument must be removed from service and protected
against use.
The safety can no longer be insured if the instrument
z Shows obvious damage
z does not carry out the desired measurements
z has been stored for too long under unfavorable conditions
z has been subjected to mechanical stress during transport.
All relevant statutory regulations must be adhered to when using this
instrument.
Appropriate Usage
The instrument may only be used under those conditions and for
those purposes for which it was conceived. For this reason, in
particular the safety references, the technical data including
environmental conditions and the usage in dry environments must
be followed.
When modifying or changing the instrument, the operational safety
is no longer ensured.
The instrument may only be opened by an authorized service
technician, e.g. for fuse replacement.
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