Dedicated Current Input Module Capable of Supplying Power to Current Sensors

Key Features

  • Clamp connection, up to 500 A AC/DC, automatic sensor identification, easy operation
  • 2 channel input
  • From low to high frequency, wide bandwidth RMS rectifier installed (DC, or 30 Hz to 10 kHz)
  • Monitor instantaneous waveforms without the need to pass through the rectifying circuit
  • High 12-bit A/D resolution
    *Not available for MR8741

Model No. (Order Code)

8971 For MR6000, MR8847A, MR8827, and similar products
Note: This module must be used with the Memory HiCorder. Current sensors are not supplied. Please purchase the appropriate sensors for the intended application.

List of Available Memory HiCorders

Please refer to the table here for the types of input units that can be used for each Memory HiCorder.

List of Available Memory HiCorders

Basic specifications

Accuracy guaranteed: 1 year, Accuracy guarantee period after adjustment made by Hioki: 1 year
Measurement functions Number of channels: 2, Current measurement with optional current sensor, Maximum 4 units connectable to the 8847
Input connectors Sensor connector (input impedance 1 MΩ, exclusive connector for current sensor via conversion cable the 9318, common ground with recorder)
Compatible current sensors CT6863, CT6862, 9709, 9279, 9278, 9277, 9272-10 (To connect the 8971 via conversion cable the 9318)
Measurement range Using 9272-10 (20A), 9277: 100mA to 5A/div (f.s.=20div, 6 settings)
Using CT6862: 200mA to 10A/div (f.s.=20div, 6 settings)
Using 9272-10 (200A), 9278, CT6863: 1A to 50A/div (f.s.=20div, 6 settings)
Using 9279, 9709: 2A to 100A/div (f.s.=20div, 6 settings)
Accuracy Using 9278, 9279: ±0.85% f.s.
Using other sensor: ±0.65% f.s.
RMS amplitude accuracy: ±1% f.s. (DC, 30Hz to 1kHz), ±3% f.s. (1kHz to 10kHz)
RMS response time: 100ms (rise time from 0 to 90% of full scale), Crest factor: 2
Frequency characteristics: DC to 100kHz, ±3dB (with AC coupling: 7Hz to 100kHz)
Measurement resolution 1/100 of range
Highest sampling rate 1 MS/s (simultaneous sampling across 2 channels)
Other functions Input coupling: AC/DC/GND, Low-pass filter: 5, 50, 500, 5k, 50kHz, or OFF
Dimensions and mass 106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, 250 g (8.8 oz)
Accessories CONVERSION CABLE 9318 × 2 (To connect the current sensor to the 8971)

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