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HIGH VOLTAGE UNIT

U8974

1000V High-voltage Direct Input Module for Memory Recorders

The Hioki U8974 input module features direct high –voltage input of up to 1000 V DC and 700 V AC without using a differential probe. This is ideal for primary and secondary measurements of UPS power supplies and commercial power supply transformers, for recording the primary and secondary waveforms of inverters, and for measuring high-voltage power supply lines, such as 380 V and 480 V systems used in many countries. Key Features • Directly input up to 1000 V DC or 700 V AC • For use with Hioki Memory Hicorder series • High-speed sampling up to 1MS/s • Isolated input

Model No. (Order Code)

U8974 For the MR6000, MR8847A, MR8827, and similar products

Note: This module must be used with the Memory HiCorder. Input cords are not included. Please purchase them separately.

Guarantee3years
CE

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement functionsNumber of channels: 2, for voltage measurement, DC/RMS selectable
Maximum rated voltage to ground: 1000 V AC or DC (CAT III), 600 V AC or DC (CAT IV)
Input terminalsBanana input terminal (Input impedance: 4 MΩ, Input capacitance: 5 pF)
Measurement range200 mV/div to 50 V/div (DC mode), 8 ranges
500 mV/div to 50 V/div (RMS mode), 7 ranges
Measurement resolution1/1600 of measurement range (using 16-bit A/D conversion)
Maximum sampling rate1MS/s
Measurement accuracy±0.25% f.s. (with filter 5 Hz, zero position accuracy included)
RMS measurementRMS accuracy: ±1.5% f.s. (DC, 30 Hz to 1 kHz), ±3% f.s. (1 kHz to 100 kHz)
Response time: High speed 150 ms, Medium speed 500 ms, Low speed 2.5 s
Frequency characteristicsDC to 100 kHz (-3dB)
Input couplingDC/GND
Maximum input voltage1000 V DC, 700 V AC
Dimensions and mass106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, 230 g (8.1 oz)
AccessoriesNone

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IEEE IFEEC 2019 - Singapore

Nov 25, 2019 - Nov 28, 2019

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Nov 25, 2019 - Nov 28, 2019

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Instruction Manual Japanese
English
Ver.09

Outline Drawings

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Ver.00

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Declaration of Conformity

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