User Documentation
16
1 About this documentation
The following symbols are used on the device
and in the operating instructions:
Warning against hazard. Take note of
the operating instructions.
Warning against dangerous electrical
voltage. Risk of electric shock.
Consistent double or reinforced insu-
lation (Category II DIN EN 61140)
Suitable for working under electrical
voltage
Identication of electrical and elec-
tronic devices (WEEE Directive)
Compliant with the relevant
EU directives
Instruction for correct and eective
work
► Instructions
– List
This instruction contains information and warn-
ings for working safely with the device.
► Read through the instructions completely
before using the device and take note of the
safety instructions.
► Ensure that the instruction is always available
for users.
2 Safety
2.1 General safety notice
– The device may only be used by trained per-
sons.
– The device may only be operated if it is in
perfect condition.
– If the safety of the operator is no longer guar-
anteed, the device must be put out of opera-
tion and secured against unintentional use.
Safety is no longer guaranteed in the follow-
ing cases:
– Obvious damage
– Stored for too long or incorrectly
– Leaking batteries
– Modification or reconstruction
– The device must not be used in potentially
explosive atmosphere.
– The device must not be used in the rain or
precipitation.
– The device may only be used in the indicated
measurement ranges, only in low-voltage sys-
tems of up to 690 V (VT Digi Pro to 1000 V)
and only in the indicated overvoltage cate-
gory.
– Precautions must be taken to prevent electric
shock if working with voltages that are higher
than extra-low voltage (ELV), i.e. voltages
higher than 120 V DC or 50 V eff AC. For lim-
ited areas, for example agricultural ranges,
60 V DC and 25 V AC apply as limit values.
– A faultless display is only guaranteed in the
temperature range from -15°C to +55°C with
relative humidity below 85%.