HIOKI MR8905 - 2-channel voltage module for MR8875, 500 kS/s, 1000 VDC
Product information HIOKI MR8905 - 2-channel voltage module for MR8875, 500 kS/s, 1000 VDC
The MR8905 Analog Unit is a 2-channel voltage input module for the memory recorder MR8875. It enables voltage measurement of instantaneous values and AC RMS values.
Each channel supports measurement ranges from 500 mV to 50 V/div. The module uses 16-bit A/D conversion and supports simultaneous sampling across both channels at up to 500 kS/s. The frequency characteristics extend from DC to 100 kHz (–3 dB).
The module supports RMS measurement with defined accuracy and response time. Input coupling modes DC, AC-RMS, and GND are selectable.
The maximum allowable input voltage is 1000 V DC or 700 V AC. The maximum rated voltage to earth is CAT II 1000 V AC/DC and CAT III 600 V AC/DC.
Typical applications include voltage measurement, RMS evaluation, and waveform analysis in laboratory and industrial environments.
Technical specifications
- Channels: 2 (voltage, instantaneous / AC RMS selectable)
- Input: banana connector, 4 MΩ, <1 pF
- Measurement range: 500 mV to 50 V/div
- Accuracy: ±0.5 % f.s. (instantaneous), ±1.5 % / ±3 % f.s. (RMS, frequency-dependent)
- Sampling / resolution: 500 kS/s simultaneous, 16-bit (1/1250)
- Frequency characteristics: DC to 100 kHz (–3 dB)
- Low-pass filter: 5, 50, 500 Hz, 5 kHz, OFF
- Input coupling: DC, AC-RMS, GND
- Maximum input: 1000 V DC, 700 V AC
- Maximum rated voltage to earth: CAT II 1000 V AC/DC, CAT III 600 V AC/DC
- MR8905 Analog Unit
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