DI-8B31 Analog Voltage Input Modules 3Hz Bandwidth

±1V to ±60V Input Range

Product Features

  • Accepts Voltage Level Signals
  • High Level Voltage Outputs
  • 1500Vrms Transformer Isolation
  • ANSI/IEEE C37.90.1 Transient Protection
  • Input Protected up to 240VAC Continuous
  • 120dB CMR
  • 85dB NMR at 60Hz
  • ±0.05% Accuracy
  • ±0.02% Linearity
  • Low Drift with Ambient Temperature
  • CSA, FM and CE Certifications Pending
  • Mix and Match Modules

Products in the Series

DI-8B Amplifiers
  • ±1 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 
DI-8B Amplifiers
  • ±5 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 
DI-8B Amplifiers
  • ±10 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 
DI-8B Amplifiers
  • ±20 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 
DI-8B Amplifiers
  • ±40 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 
DI-8B Amplifiers
  • ±60 V measurement range
  • 3 Hz bandwidth (BW)
  • Passes DC to near-DC signals
  • Isolation supports off-ground measurements
$108.00
Qty: 

DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B31 module isolates, filters and amplifies a voltage input signal and provides an analog voltage output.

Signal filtering is accomplished with a three-pole filter optimized for time and frequency response which provides 70dB of normal-mode-rejection at 60Hz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other two are on the system side.

A special input circuit on the DI-8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC.

Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.

The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.