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18
18.2 Data Acquisition Units (DAU)
264
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
18.2 Data Acquisition Units (DAU)
DAU types
Measured value processing of the DAU types (in detail)
Table 18-6 DAU types
Type Application Number of channels Measuring ranges
(overview)
VCDAU Recording of voltage,
current and binary signals
- 8 analog (4 voltage
and 4 current)
- 16 binary V: AC 1.5 V to AC 400 V
I: AC 5 mA to AC 400 A
binary: Table 18-8
VDAU Recording of voltages and
binary signals
- 8 analog (voltage)
- 16 binary V: AC 1.5 V to AC 400 V
binary: Table 18-8
CDAU Recording of currents and
binary signals
- 8 analog (current)
- 16 binary I: AC 5 mA to AC 400 A
binary: Table 18-8
DDAU Recording of process
values and binary signals
- 8 analog (8 voltage
or 8 current)
- 16 binary V: DC ±1 V / DC ±10 V
(>40 k
Ω
/ >400 k
Ω)
I: DC ±20 mA (50
Ω
)
binary: Table 18-8
BDAU Recording of binary signals - 32 binary binary: Table 18-8
Table 18-7 Measuring ranges and important parameters (without binary inputs)
Type Measuring ranges / accuracy Parameters
VCDAU
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 %)
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 %)
Impedance: >100 k
Ω
Overvoltage: 300 V max. for 5 s
Impedance: >200 k
Ω
Overvoltage: 600 V max. for 5 s