Universal ISO 1 MS/s Input Card (GN441)

This unique, high-end, input card with ultra-fast amplifier serves a variety of needs; from differential and/or isolated measurements to IEPE-based vibration or shunt-based current measurements.

The universal amplifier input card has four input channels, each sampling at 1MS/s maximum with 16 bit resolution. The voltage range for a channel can be set from ±10 mV to ±100 V, making the board adaptable to nearly every application. True optical isolation allows for measurements with up to 250 V RMS common mode voltage. The on-board differential input amplifiers eliminate noise picked up in the device under test or the measurement leads. Each amplifier typically offers a high CMRR of 80dB.

By switching to "IEPE mode", the amplifier supports any type of constant current supplied vibration and acceleration sensors. In "Current mode", the built-in shunt can be used to measure up to 1 ampere in a safe, isolated and fused manner, without the need of external shunt resistors.

Key Features

  • Full differential and/or isolated measurements
  • Support off IEPE transducer and shunt-based current measurements
  • 4 analog channels
  • Balanced differential inputs
  • ± 10 mV to ± 100 V input range
  • 250 V DC Isolation
  • User selectable digital Bessel and FIR filters
  • 1MS/s sample rate
  • 16 bit resolution
  • 512 MB memory
  • 2 Isolated BNC connectors for each channel

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