21
UMG 512
When connecting the voltage to be measured,
the following must be observed:
• A suitable circuit breaker must be fitted to
disconnect and de-energise the UMG 512.
• The circuit breaker must be placed in the vicinity
of the UMG 512, be marked for the user and easily
accessible.
• Use a UL/IEC approved circuit breaker for the
overcurrent protection and disconnector.
• The overcurrent protection must have a rated
value, which is suitable for the short circuit current
at the connection point.
• Measured voltages and measured currents must
derive from the same network.
c
Please note!
Voltages that exceed the allow nominal
network voltages must be connected via
a voltage transformer.
c
Please note!
The UMG 512 is not suitable for measuring
DC voltages.
c
Please note!
The voltage measurement inputs on
the UMG 512 are dangerous if touched!
c
Please note!
The voltage measurement inputs may not
be used for voltage measurement in SELV
circuits (safe extra low voltage).
Содержание UMG 512
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Страница 116: ...116 UMG 512 Dimension diagrams Cut out size 138 0 8 x 138 0 8 mm Rear side Patch cable ...
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