Voltage metering
Three-phase, 4-wire systems with nominal voltages up to 277V/480V (+-10%)
Three-phase, 3-wire systems, unearthed,
with nominal voltages up to
IT 480V (+-10%)
Overvoltage category 300V CAT III
Rated surge voltage 4kV
Metering range L-N 0
1)
.. 300 Vrms
(max. overvoltage 520 Vrms )
Metering range L-L 0
1)
.. 520Vrms
(max. overvoltage 900Vrms )
Resolution 0.01V
Crest factor 2.45 (relative to the metering range)
Impedance 3MΩ/phase
Power consumption approx. 0.1 VA
Sampling rate 21.33 kHz (50 Hz), 25.6 kHz (60 Hz) per measuring channel
Mains frequency
- Resolution
45 Hz .. 65 Hz
0.01 Hz
1)
The UMG 96RM-M can only detect measurements when a voltage L1-N greater than 20V eff (4-wire measurement) at voltage input V1 or a voltage L1-L2 greater
than 34V eff (3-wire measurement) is applied.
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