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UMG 509
Voltage measurement
The voltage measurement inputs are suitable for measurements in the following power supply systems:
Three-phase 4-conductor systems with rated voltages up to 417V/720V (+10%)
Three-phase 3-conductor systems with rated voltages up to 600V (+10%)
From a safety and reliability perspective, the voltage measurement inputs are designed as follows:
Overvoltage category 600V CAT III
Measurement surge voltage 6kV
Metering range L-N 0
1)
to 600Vrms
Metering range L-L 0
1)
to 1000Vrms
Resolution 0.01V
Crest factor 1.6 (related to 600Vrms)
Impedance 4MOhm/phase
Power consumption approx. 0.1VA
Sampling rate
20kHz / phase
Transients > 50µs
Frequency range of the fundamental oscillation
- Resolution
40Hz to 70Hz
0.001Hz
1)
The UMG 509 can only determine measured values, if at least a voltage L-N greater than 10Veff or a voltage
L-L of greater than 18Veff is present at one voltage measurement input.
Terminal connection capacity (voltage and current measurement)
Connectable conductors. Only one conductor can be connected per terminal!
Single core, multi-core, fine-stranded 0.2 - 2.5mm
2
, AWG 24-12
Terminal pins, core end sheath 0.25 - 2.5mm
2
Tightening torque 0.5 - 0.6Nm
Stripping length 7mm
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