Dataforth Corporation 8B31 Voltage Input Modules, Narrow Bandwidth 8B31-02

Description
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B30 or 8B31 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output. Signal filtering is accomplished with a 5-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 four are on the system side. A special input circuit on the 8B30 and 8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients. 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.
  • 8B31 Voltage Input Modules, Narrow Bandwidth - 8B31-02 - Dataforth Corporation
    Dataforth Corporation
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Description
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B30 or 8B31 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output. Signal filtering is accomplished with a 5-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 four are on the system side. A special input circuit on the 8B30 and 8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients. 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.
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Datasheet
Datasheet Summary
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The 8B31-02 is a voltage input module that isolates, filters, and amplifies a ±5V input signal to produce a ±5V analog voltage output. It features 1500Vrms isolation, 120dB common-mode rejection at 60Hz, and 70dB normal-mode rejection at 60Hz. Input protection supports continuous exposure to 240VAC and transient events per ANSI/IEEE C37.90.1. Accuracy is ±0.05% of span with ±0.02% linearity. The module operates from +5VDC ±5% and draws 25mA. It has a bandwidth of 3Hz, a response time of 160ms to 90% of full scale, and output noise of 250μVrms. The device is rated for operation from -40°C to +85°C and measures 1.11" x 1.65" x 0.40" (28.1mm x 41.9mm x 10.2mm). It is UL/cUL listed, CE compliant, ATEX compliance pending, and manufactured per RoHS III Directive 2015/863.

Datasheet Summary
Powered by GS/AI

The 8B31-02 is a voltage input module that isolates, filters, and amplifies a ±5V input signal to produce a ±5V analog voltage output. It features 1500Vrms isolation, 120dB common-mode rejection at 60Hz, and 70dB normal-mode rejection at 60Hz. Input protection supports continuous exposure to 240VAC and transient events per ANSI/IEEE C37.90.1. Accuracy is ±0.05% of span with ±0.02% linearity. The module operates from +5VDC ±5% and draws 25mA. It has a bandwidth of 3Hz, a response time of 160ms to 90% of full scale, and output noise of 250μVrms. The device is rated for operation from -40°C to +85°C and measures 1.11" x 1.65" x 0.40" (28.1mm x 41.9mm x 10.2mm). It is UL/cUL listed, CE compliant, ATEX compliance pending, and manufactured per RoHS III Directive 2015/863.

Suppliers

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Supplier Links
8B31 Voltage Input Modules, Narrow Bandwidth - 8B31-02 - Dataforth Corporation
Dataforth Corporation
Tucson, AZ, USA
8B31 Voltage Input Modules, Narrow Bandwidth
8B31-02
8B31 Voltage Input Modules, Narrow Bandwidth 8B31-02
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B30 or 8B31 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output. Signal filtering is accomplished with a 5-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 four are on the system side. A special input circuit on the 8B30 and 8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients. 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.

8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B30 or 8B31 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output.
Signal filtering is accomplished with a 5-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 four are on the system side.
A special input circuit on the 8B30 and 8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients.
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.

Supplier's Site Datasheet

Technical Specifications

  Dataforth Corporation
Product Category Data Acquisition
Product Number 8B31-02
Product Name 8B31 Voltage Input Modules, Narrow Bandwidth
Data Acquisition Input Module
Form Factor Modular Bay or Slot System
Outputs Analog Voltage Output
User Interface None
Application General Lab & Industrial
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