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Gossen Metrawatt MAVOWATT 4 Manual

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16 GMC-I Messtechnik GmbH
4.5 Voltage and current measurement
Even if the meter is connected for a power measurement, you can use
the power meter to measure voltages and currents on both DC systems
and single-phase AC systems and/or three-wire, three-phase systems
of balanced load. For DC and single-phase AC systems, the voltage
must be applied to L1 (2) and L2 (5). Terminal L3 (8) must not be
connected.
With three-wire, three-phase systems of balanced load (without neutral
conductor), the voltages must be connected to terminals L1 (2), L2 (5)
and L3 (8). With current measurements, the measuring current flows
through connectors I* (1) and I (3).
4.5.1 Voltage measurement
On DC and single-phase AC systems
Set the function switch to the U and/or U position and the
selector switch for the voltage ranges to the range corresponding
to the measured value. The selector switch for the current ranges
may be set to any position.
The voltage applied to terminals L1 (2) and L2 (5) can be read
directly on the scale corresponding to the selected measuring
range
On three-wire, three-phase systems of balanced load
Set the function switch to the U position and the selector switch
for the voltage ranges to the range corresponding to the measured
value. The selector switch for the current ranges may be set to any
position.
Connect the voltage to terminals L1 (2), L2 (5) and L3 (8).
Read the measured value off the scale corresponding to the
selected measuring range
To determine the phase voltage, it is required to divide the read
voltage value by 3.
To determine the voltage of the outer conductors, it is required to
divide the read voltage value by .
3
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