4CH ANALOG UNIT U8975

High speed 5 MS/s, isolated 4 channel input

Key Features

  • High speed sampling of 5 MS/s ensures catching high speed phenomena
  • Isolated 4 channel input
  • Max. rated voltage to ground: 300 V AC or DC (CAT II)
  • High resolution measurement with 16 bit A/D
  • For Memory HiCorder MR6000 and MR8740T

Model No. (Order Code)

U8975 For the MR6000 and similar products
Note: Use it by installing it in the Memory HiCorder. Input code kind is not included so purchase separately.

Simultaneous measurement of multiple channels

The MR6000 can simultaneously measure up to 32 channels, while the MR8740T can measure up to 108 channels at a time.
The U8975 accepts direct input of up to 200 V DC across 4 channels. With a sampling rate of 5 MHz (across a frequency band of 2 MHz), high speed, and 16-bit resolution, it can perform multi-channel, high-speed, and high-resolution measurement.

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: 300 V AC or DC (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 4, 10, 20, 40, 100, 200 V f.s., 6 ranges
(AC voltage for possible measurement/display using the memory function: 140 V rms)
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 ±0.1% 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 200 V DC (when direct input)
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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