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HIOKI U8974 – High Voltage Measurement Unit for Memory HiCorders

Description

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 

What's in the Box
  • U8974 High Voltage Unit
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