4CH ANALOG UNIT U8978

Isolated 4-channel input module to measure multiple points simultaneously

Key Features

  • Measurement of sensor output, etc. with high sensitivity range of 100 mV f.s.
  • Isolated 4 channel input
  • Max. rated voltage to ground (direct input) 30 V AC, 60 V AC; (when combined with the 9665) 300 V AC or DC (CATⅡ)
  • High speed sampling of 5 MS/s ensures high-speed phenomena are captured
  • High 16-bit A/D resolution
  • For Memory HiCorder MR6000 , MR8740T and MR8847A (ver. 3.00 or later)

Model No. (Order Code)

U8978 For the MR6000 and similar products
Note: Use it by installing it in the Memory HiCorder. Input cords not included - please purchase separately.

Simultaneously measure up to 32 channels at high resolution

The MR6000 can simultaneously measure up to 32 channels, while the MR8740T can measure up to 108 channels at a time.
Thanks to four input channels and a high-sensitivity 100 mV f.s. range, the U8978 can measure multiple channels of signals from a variety of sensors. The unit is ideal for use in measuring currents of various magnitudes in the development of automobile accessory controls. Utilized in combination with the multi-range Current Probe CT6711, it can measure currents from 1 mA to 50 A.

Observe minuscule currents using high-sensitivity wideband current probes

Analyze minuscule current waveforms from low power-consumption devices in 100 μA resolution. Record device current consumption waveforms in high resolution over extended periods of time.

Comparison Table

This is a comparison table against the discontinued 8946 4-channel analog unit. Please refer to this table when you consider replacement.
*The 8946 cannot be used with current memory HiCoders (MR6000 series, MR8847A series, MR8827, MR8740/41, and MR8740T).

Click here for the comparison table.

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: 4, for voltage measurement
Input terminals Isolated BNC terminal (Input impedance: 1 MΩ, Input capacitance: 30 pF)
Max. rated voltage to earth: Direct input: 30 V AC, 60 V DC,
When combined with the 9665: 300 V AC, DC (CAT II)
(with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage)
Measurement range 100, 200, 400 mV f.s., 1, 2, 4, 10, 20, 40 V f.s., 9 ranges
Low-pass filter: 5/500/5 k/200 kHz
Measurement resolution 1/32000 of measurement range (using 16 bit A/D conversion)
Highest sampling rate 5 MS/s (4 channel simultaneous sampling)
Measurement accuracy ±0.3% f.s. (with filter 5 Hz, zero position accuracy included)
Frequency characteristics DC to 2 MHz -3 dB
Input coupling DC/GND
Max. allowable input 40 V DC (with direct input), 400 V DC (when using the 9665)
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 None

Use with these products (1)

* Main products are listed below. For more information, please see each product page.

Voltage measurement Type A (4)

* Input voltage is limited to the specifications of the input modules in use

* Max. rated voltage to earth is limited to the specifications of the input modules in use

Voltage measurement Type B (1)

* Input voltage is limited to the specifications of the input modules in use

* Max. rated voltage to earth is limited to the specifications of the input modules in use

Voltage measurement Type C (2)

* Input voltage is limited to the specifications of the input modules in use

* Max. rated voltage to earth is limited to the specifications of the input modules in use

Voltage measurement Type D (2)

* Max. rated voltage to earth is limited to the specifications of the input modules in use

* For a list of compatible Memory HiCorders, please see the product catalog


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