HIOKI U8974 – High Voltage Measurement Unit for Memory HiCorders
Product information HIOKI U8974 – High Voltage Measurement Unit for Memory HiCorders
The U8974 High Voltage Unit is a 2-channel voltage measurement module for high-voltage signals for the memory recorders MR6000, MR6000-01, MR8848, MR8827, MR8740, MR8741 and MR8740T. It supports DC and RMS voltage measurement with selectable modes and enables direct input of high-voltage signals. The module provides measurement ranges from 200 mV/div to 50 V/div (DC) and 500 mV/div to 50 V/div (RMS) with a maximum input voltage of 1000 V DC and 700 V AC. Simultaneous sampling of both channels is performed at up to 1 MS/s with 16-bit A/D conversion. A frequency characteristic from DC to 100 kHz and integrated RMS measurement functions support analysis of voltage signals.
Typical applications include measurement of high-voltage signals in power electronics, monitoring of power supply systems, and analysis of voltage waveforms in electrical systems.
Technical specifications
- Number of channels: 2 (voltage measurement, DC/RMS selectable)
- Input: banana terminal, input impedance 4 MΩ, input capacitance 5 pF
- Measurement range: 200 mV/div to 50 V/div (DC), 500 mV/div to 50 V/div (RMS), 8 / 7 ranges
- Maximum input voltage: 1000 V DC, 700 V AC • Sampling rate: 1 MS/s
- Resolution: 16 bit (1/1600 of measurement range)
- Accuracy: ±0.25% f.s. (with 5 Hz filter)
- RMS measurement: ±1.5% f.s. (30 Hz to 1 kHz), ±3% f.s. (1 kHz to 100 kHz), response time 150 ms / 500 ms / 2.5 s
- Frequency characteristic: DC to 100 kHz (−3 dB)
- Input coupling: DC / GND
Compatible memory recorders MR6000, MR6000-01, MR8848, MR8827, MR8740, MR8741, MR8740T
- U8974 High Voltage Unit
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Product Brochure with Data Sheet, Memory Recorder MR6000 (English)11,517 KB pdf
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Product brochure with data sheet, Modular Memory Recorder MR8848 (English)5,154 KB pdf
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Instruction Manual, Modules for Memory Recorders (Japanese, English)2,514 KB pdf
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Product brochure with datasheet, Memory Recorder MR8740T (English)7,728 KB pdf
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