18
18.2 Data Acquisition Units (DAU)
265Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
VDAU Voltage measuring range AC 1.5 V to AC 200 V
Accuracy *: ±0.25 % of measured value ±30 mV
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Voltage measuring range AC 3 V to AC 400 V
Accuracy *: ±0.25 % of measured value ±30 mV
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Impedance: >100 kΩ
Overvoltage: 300 V max. for 5 s
Impedance: >200 kΩ
Overvoltage: 600 V max. for 5 s
CDAU Entire current measuring range:
AC 5 mA to AC 400 A
Current measuring range AC 5 mA to AC 7 A
Accuracy *: ±0.5 % of measured value ±0.5 mA
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Current measuring range: >AC 7 A to AC 200 A
Accuracy *: ±1.5 % of measured value ±100 mA
Frequency behaviour: 0 Hz to 5,500 Hz (5 %)
Current measuring range >AC 200 A to AC 400 A
Accuracy *: ±3.5 % of measured value
Frequency behaviour: 0 Hz to 5,500 Hz (5 %)
DDAU Input range (depending on the version):
DC ±20 mA (50 Ω)
DC ±1 V / DC ±10 V (> 40 kΩ / > 400 kΩ)
Accuracy (at 23 °C ±1 °C):
Range 1 V: ±0.5 % of measured value ±1 mV
Range 10 V: ±0.5 % of measured value ±10 mV
Range 20 mA: ±0.5 % of measured value ±20 μA
* All precision data refer to the rms value in stationary operation mode at nominal frequency and at
23 °C ±1 °C.
Table 18-8 Binary inputs of VCDAU, VDAU, CDAU, DDAU, and BDAU
Input voltage L-level H-level Overload
(at 1 mA input current)
DC 24 V
DC 48 V to DC 60 V
DC 110 V to DC 125 V
DC 220 V to DC 250 V
≤7 V
≤14 V
≤28 V
≤56 V
≥18 V
≥36 V
≥75 V
≥165 V
DC 28.8 V
DC 72 V
DC 150 V
DC 300 V
Table 18-7 Measuring ranges and important parameters (without binary inputs) (Forts.)
Type Measuring ranges / accuracy Parameters
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