Hioki PW8001-01, Instruction Manual

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Specifications of Input, Output, and Measurement
10.2 Specifications of Input, Output, and
Measurement
Basic specifications
(1) Specifications common to voltage, current, power measurement
Number of input
modules
Up to 8 modules (co-existence of different types of input modules acceptable)
Input module type U7001 2.5MS/s Input Unit
U7005 15MS/s Input Unit
Manner of input
module installation
When different types of input modules coexist, install the U7005 15MS/s Input Units all
together on the Ch. 1 side.
Wiring configuration
to be measured
Single-phase 2-wire (1P2W), single-phase 3-wire (1P3W),
3-phase 3-wire (3P3W2M, 3V3A, 3P3W3M), 3-phase 4-wire (3P4W)
Wiring configuration
setting
Installed input modules can be assigned to any wiring channels. (However, only adjacent
input modules can be used to the same wiring configuration).
Different types of input modules can coexist in the same wiring configuration.
Different types of current sensors cannot coexist in the same wiring configuration.
Measurement
method
Voltage/current simultaneous digital sampling with zero-crossing synchronized calculation
Sampling frequency,
sampling bit rate
U7001: 2.5 MHz, 16-bit
U7005: 15 MHz, 18-bit
Effective
measurement range
1% of range to 110% of range
Effects of conducted
radio-frequency
electromagnetic field
For current and active power measurement, 6% of full scale or less at 3 V
( full scale means the sensor’ rated current, only when the 9272-05 is used)
Effects of radiated
radio-frequency
electromagnetic field
For current and active power measurement, 6% of full scale or less at 10 V/m
( full scale means the sensor’ rated current, only when the 9272-05 is used)
Display range
See “10.4 Detailed Specifications of Measurement Parameters” (p. 203).
Measurement mode Wideband measurement mode
Data refresh interval 10 ms, 50 ms, 200 ms
The harmonic data refresh interval is specified separately.
LPF Cutoff frequency fc
U7001:
500 Hz, 1 kHz, 5 kHz, 10 kHz, 50 kHz, 100 kHz, 500 kHz, off
(The 500 kHz LPF setting uses an analog circuit.)
U7005:
500 Hz, 1 kHz, 5 kHz, 10 kHz, 50 kHz, 100 kHz, 500 kHz, 2 MHz, off
(The 2 MHz LPF setting uses an analog circuit.)
Analog LPF + Digital LPF
Add
±
0.05% of reading to the accuracy except if the LPF is set to off.
When fc is set at 500 Hz or 1 kHz, add another
±
0.5% of reading.
The accuracy specifications are specified for frequencies less than or equal to one tenth
the set cutoff frequency.
The peak value is based on the LPF-processed values, whereas the peak-over judgment
uses not-digital-LPF processed values.
HIOKI PW8001A961-00