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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

 
  • Interfaces to 100Ω Platinum RTDs
  • Linearizes RTD Signal
  • High Level Voltage Outputs
  • 1500Vrms Transformer Isolation
  • ANSI/IEEE C37.90.1 Transient Protection
  • Input Protected to 240VAC Continuous
  • 120dB CMR
  • 70dB NMR at 60Hz
  • Low Drift with Ambient Temperature
  • CSA, FM and CE Certifications Pending
  • Mix and Match Modules
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Part Number Description Price
(US)		 DATAQ Store
DI-8B34-01 -100°C to +100°C
(-148°F to +212°F)		 $102
Quantity:
DI-8B34-02 0°C to +100°C
(+32°F to +212°F)		 $102
Quantity:
DI-8B34-03 0°C to +200°C
(+32°F to +392°F)		 $102
Quantity:
DI-8B34-04 0°C to +600°C
(+32°F to +1112°F)		 $102
Quantity:
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.
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DI-8B34 Highlights

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 exciation 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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Want to port your data into a spreadsheet or a database?

Check out our add-on software:
Port Data Acquired with your DI-710 Data Logger to Excel

WinDaqXL This WinDaq Software data acquisition add-on allows you to port acquired data directly into a Microsoft Excel Spreadsheet in real time. 60-day Trial Version available.

Also check out the DATAQ Developer Network to learn how to use our ActiveX controls with Microsoft Excel and Access.
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.
         
 

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© 2008 DATAQ Instruments, Inc. All rights reserved. Date last edited 1/24/2007. mail Webmaster