
www.janitza.de UMG 509-PRO
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2. 2 Safety measures
When operating electrical devices, certain
parts of these devices are invariably
subjected to hazardous voltage. Therefore,
severe bodily injuries or damage to property
can occur if they are not handled properly:
cc
WARNING!
Risk of injury due
to electric voltage!
Severe bodily injuries or death can occur
due to dangerous voltages.
Therefore, note the following:
• Before connecting connections,
earth the device at the ground wire
connection if present.
• Hazardous voltages may be present
in all switching parts that are
connected to the power supply.
• Hazardous voltages may also
be present in the device even after
disconnecting the supply voltage.
• Provide single core conductors with
sleeves.
• Only connect screw-type terminals
with a matching number of pins
and of the same type.
• If the device is not operated according
to the documentation, protection
is no longer ensured and hazards
can be posed by the device.
• De-energise the system before
starting work.
2. 3 Qualified staff
This device must only be operated
and repaired by specialised personnel.
Specialised personnel are people who are
qualified to recognise risks and prevent
potential dangers that can be caused
by the operation or maintenance
of the device based on their respective
training and experience.
cc
WARNING!
Risk of injury due to electric
voltage!
Janitza measurement devices or their
components can lead to injuries and even
death or to material damage!
• Do not use Janitza measurement devic-
es or components for critical switching,
control or protection applications where
the safety of persons and property de-
pends on this function.
• Do not carry out switching operations
with the Janitza measurement devices
or components without prior inspection
by your plant manager with specialist
knowledge! In particular, the safety of
persons, material assets and the ap-
plicable standards must be taken into
account!