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Model DI-8B31-01

Isolated ±1V 8B-style Amplifier

$ 133 each
This product currently has a 2-8 week lead time
  • -1V to +1V input range
  • 3Hz Bandwidth
  • 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
  • View Dimensions and pinout
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DI-8B DAQ Amplifiers
This amplifier module measure -1 to +1V.This amplifier module has 3Hz bandwidth.This data acquisition system has a 30-day Money back guaranteeThis amplifier is manufactured in the United States of America

Description

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-8B30 or DI8B31 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-8B30 and 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.

Accessories

8BP02

2-Position Backplane

$ 95
8BP02

Description

2-position analog I/O backplane, non-multiplexed. For use with DI-8B Modules. View the 8BP02 schematic or the 8BPxx schematic or download the pdf.

8BP04

4-Position Backplane

$ 153
8BP04

Description

4 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP04 schematic or the 8BPxx schematic or download the pdf.

8BP08

8-Position Backplane

$ 228
8BP08

Description

8 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP08 schematic or the 8BPxx schematic or download the pdf.

8BP16

16-Position Backplane

$ 355
8BP16

Description

16 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP16 schematic or the 8BPxx schematic or download the pdf.

DI-5B-PS

Power Supply

$65.00
Power Supply

Description

5V DC Power Supply for use with both DI-5B and DI-8B Backplanes.

Specifications

Input Range: ±1V
Input Bias Current: ±0.5nA
Input Resistance: 500kΩ (minimum)
Input Protection: Continuous: 240VAC (8B30-01: 120VAC)
Transient: ANSI/IEEE C37.90.1
CMV, Input to Output: 1500Vrms
Transient, Input to Output: ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz): 120dB
NMR: 85dB at 60Hz
Accuracy: ±0.05% Span (Includes nonlinearity, hysteresis and repeatability)
Nonlinearity: ±0.02% Span
Stability: Offset: ±10ppm/ºC
Gain: ±75ppm/ºC
Noise: Output, 100kHz: 250µVrms
Bandwidth, -3dB: 3Hz
Response Time, 90% Span: 160ms
Output Range: ±5V
Output Protection: Transient: Continuous Short to Ground
ANSI/IEEE C37.90.1
Power Supply Voltage: +5VDC ±5%
Power Supply Current: 25mA
Power Supply Sensitivity: ±25ppm/%
Mechanical Dimensions: 1.11" × 1.65" × 0.40"
(28.1mm × 41.9mm × 10.2mm)
Operating Temperature: -40ºC to +85ºC
Storage Temperature: -40ºC to +85ºC
Relative Humidity: 0 to 95% Noncondensing

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