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DI-5B34 Linearized 2- or 3-Wire RTD Input Modules

Linearizes RTD Signal

DI-5B Industrial Signal Conditioning Data Acquisition Module

Product Highlights

  • Interfaces to 100Ω Platinum, 10Ω Copper, or 120Ω Nickel RTDs
  • Linearizes RTD Signal
  • High Level Voltage Outputs
  • 1500 VRMS Transformer Isolation
  • ANSI/IEEE C37.90.1-1989 Transient Protection
  • Input Protected to 240VAC Continuous
  • 160dB CMR
  • 95dB NMR at 60Hz, 90dB at 50Hz
  • CSA Certified

Each DI-5B34 module provides a single channel of RTD input which is filtered, isolated, amplified, linearized, and converted to a high level analog voltage output. This voltage output is logic switch controlled, which allows these modules to share a common analog bus without the requirement of external multiplexers.

The DI-5B34 module is designed with a completely isolated computer side circuit which can be floated to ±50V from power common (pin 16). This complete isolation means that no connection is required between I/O common and power common for proper operation of the output switch.

RTD excitation is provided from the module by two matched current sources. When using a three-wire RTD, this method allows an equal current to flow in each RTD lead, which cancels the effects of lead resistances. The excitation currents are very small (0.25mA for 100Ω Platinum and 120Ω Nickel, and 1.0mA for 10Ω Copper) which minimizes self-heating of the RTD.

Signal filtering is accomplished with a six-pole filter which provides 95dB of normal-mode-rejection at 60Hz and 90dB at 50Hz. Two poles of this filter are on the field side of the isolation barrier, and the other four are on the computer side. After the initial field-side filtering, the input signal is chopped by a proprietary chopper circuit. Isolation is provided by transformer coupling, again using a proprietary technique to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.

A special input circuit on the DI-5B34 provides protection against accidental connection of power-line voltages up to 240VAC.

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.

Ordering Information, Models, and Prices

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Part Number Description Price
(US)
DATAQ Store
100Ω Platinum, α = 0.00385
DI-5B34-01 -100°C to +100°C (-148°F to +212°F) $150
Quantity:
DI-5B34-02 0°C to +100°C (32°F to +212°F) $150
Quantity:
DI-5B34-03 0°C to +200°C (32°F to +392°F) $150
Quantity:
DI-5B34-04 0°C to +600°C (32°F to +1112°F) $150
Quantity:
10Ω Copper, α = 0.004274
DI-5B34C-01 0°C to +120°C (32°F to +248°F) 10Ω at 0°C $150
Quantity:
DI-5B34C-02 0°C to 120°C (32°F to +248°F) 10Ω at 25°C $150
Quantity:
DI-5B34C-03 0°C to 160°C (32°F to 320°F) 10Ω at 0°C $150
Quantity:
120Ω Nickel, α = 0.00672
DI-5B34N-01 0°C to +300°C (32°F to +572°F) $150
Quantity:
Accessories
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-5B Signal Conditioners have typical lead times of 2 weeks ARO.
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Multimedia Tutorials and Demonstrations

These videos are relevant to compatible data acquisition systems.

Export Data to ExcelHow to Export Recorded Data to Excel

WinDaq Data Acquisition SoftwareWinDaq Software

Software

Compatible data acquisition systems use the following software packages. Be sure to check your hardware datasheet to verify software compatibility.

WinDaq Data Acquisition SoftwareWinDaq/Lite
Data Acquisition Recording and Playback Software (FREE)

WinDaq Data Acquisition SoftwareWinDaq/HS
High Speed Data Acquisition Recording and Playback Software

WinDaq Data Acquisition SoftwareWinDaq/Pro
High Speed Data Acquisition Recording and Playback Software.

WinDaq Data Acquisition SoftwareWinDaq/Pro+
High Speed Data Acquisition Recording and Playback Software allowing you to sample different channels at different rates.

WinDaq/XLWinDaq/XL
Ports data directly to Windows Excel

ActiveX ControlsActiveX Controls
For programming solutions (FREE)

Compatible Products

DI-785 Industrial Data Acquisition System

DI-785 Features 32 channels designed specifically for DI-5B modules, 14-bit resolution, and up to 180KHz sample throughput rate.

DI-715B Industrial Data Acquisition System

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DI-75B backpack

DI-75B Backpack 5B module expansion device for DI-715B, DI-720, DI-722, and DI-730 instruments featuring 8 channels designed specifically for DI-5B modules

DI-5B Modules

  • DI-5B30 Analog Voltage Input Modules (±10mV to ±100mV), Narrow Bandwidth
  • DI-5B31 Analog Voltage Input Modules (±1V to ±40V), Narrow Bandwidth
  • DI-5B32 Analog Current Input Modules
  • DI-5B33 Isolated True RMS Analog Voltage Input Modules
  • DI-5B34 Linearized 2- or 3-Wire RTD Input Modules
  • DI-5B35 Linearized 4-Wire RTD Input Modules
  • DI-5B36 Potentiometer Input Modules
  • DI-5B38 Strain Gage Input Modules
  • DI-5B38-100 Programmable Strain Gage Signal Conditioner
  • DI-5B40 Analog Voltage Input Modules (±10mV to ±100mV), Wide Bandwidth
  • DI-5B41 Analog Voltage Input Modules (±1V to ±40V), Wide Bandwidth
  • DI-5B42 2-Wire Transmitter Interface Modules
  • DI-5B43 Isolated DC Transducer Amplifier Input Modules
  • DI-5B45 Frequency Input Modules
  • DI-5B47 Linearized Thermocouple Input Modules
  • DI-5B48 Accelerometer Input Module
  • DI-5BICP Amplifiers for ICP-style Piezoelectric Transducers
  • DI-5B Module Accessories (backplanes and power supply)
data acquisition selection guide wizard

Hardware Selection Guide Wizard

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