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DI-8B34 Linearized 2- or 3-wire RTD Input Modules

Linearizes RTD Signal
DI-8B Industrial Signal Conditioning Data Acquisition Module

View the DI-8B Module Selection Guide

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-8B34 module isolates, filters, amplifies, and linearizes a single channel of temperature input from an RTD and provides an analog voltage output.

RTD excitation is provided from the module using two matched current sources. When using a 3-wire connection, this method allows equal currents to flow through the sensor leads, cancelling the effects of lead resistances. The excitation currents are small (0.25mA) which minimizes the self-heating of the RTD.

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-8B34 module 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.

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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Check out our add-on software:

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Port Data Acquired with your DI-710 Data Logger to MySQL

WinDaq/MySQL This free WinDaq Software data acquisition add-on allows you to port acquired data directly into a MySQL database in real time.

Part # Price Order
DI-8B34-01
-100°C to +100°C (-148°F to +212°F)
$113
Quantity: 
DI-8B34-02
0°C to +100°C (+32°F to +212°F)
$113
Quantity: 
DI-8B34-03
0°C to +200°C (+32°F to +392°F)
$113
Quantity: 
DI-8B34-04
0°C to +600°C (+32°F to +1112°F)
$113
Quantity: 
Accessories
Backplanes and Power Supplies.
N/A Go to Accessories

Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country.
DI-8B Signal Conditioners have typical lead times of 2 weeks ARO.

DI-8B Industrial Signal Conditioning Modules DatasheetDI-8B34 Datasheet (pdf)

DI-8B Industrial Signal Conditioning Modules DatasheetGeneral DI-8B Module Datasheet (pdf)

Export Data to ExcelHow to Export Recorded Data to Excel

WinDaq Data Acquisition SoftwareWinDaq Software

DI-8B Module Selection Guide

View the DI-8B Module Selection Guide

Compatible Products

DI-788 Industrial Data Acquisition System

DI-788 Features 32 channels designed specifically for DI-8B modules, 14-bit resolution, and up to 180 kHz sample throughput rate.

DI-718B Data Logger

DI-718B Data Logger Features 8 channels designed specifically for DI-8B modules, 14-bit resolution, up to 10 kHz sample throughput rate, and a stand-alone data logger option.

DI-718Bx Data Logger

DI-718Bx Data Logger Features 16 channels designed specifically for DI-8B modules, 14-bit resolution, up to 10 kHz sample throughput rate, and a stand-alone data logger option.

DI-78B backpack

DI-78B Backpack 8B module expansion device for DI-720, DI-722, and DI-730 instruments featuring 8 channels designed specifically for DI-8B modules

data acquisition selection and data logger product screener

Try out our NEW data acquisition and data logger product screener for help choosing the right product for your application

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Ports data directly to Windows Excel

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Knowledge Base and Common Support Issues

The Importance of Isolation

Dimensions and Pinout

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