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SCM5B - Series

Isolated Analog Signal Conditioning Modules for Backpanels

Dataforth Corporation offers cost-effective, isolated industrial signal conditioning modules. The SCM5B analog modules are form, fit, and functional equivalents to similar products from other manufacturers. The product line includes a complete selection of backpanel options, interface cables, racks, fuses, jumpers, power supplies, and other accessory items.

Each SCM5B module provides a single channel of isolated analog input or output. Input modules interface to all types of external sensors. The modules filter, isolate, amplify, and convert the input signal to a high-level analog voltage output. The output modules accept a high-level analog voltage signal from a host system, then buffer, isolate, and amplify before providing a process current or voltage output to field devices. Over 250 different SCM5B modules are available encompassing a wide selection of isolated analog input and output functions. Analog inputs include voltage and current in narrow and wide bandwidths, thermocouple, RTD, accelerometer, potentiometer, strain gage, frequency and 2-wire transmitter. Custom I/O ranges are also available. All modules are CSA C/US certified for safe operation in Class I, Division 2, Groups A, B, C, and D hazardous environments. They are also CE and ATEX compliant.

Accessories include addressable and non-addressable single, dual, 8- and 16-channel backpanels which include on-board temperature sensors and cold junction thermocouple compensation, power supplies, mounting racks, interface cables, and evaluation boards.


Dataforth SCM5B modules offer several advantages when compared with competitive parts, while maintaining equivalent price:

  • 50 times better noise rejection by using a 6-pole filter with 95dB
    (NMR, versus a 3-pole filter with 60dB NMR)
  • Lower output noise
  • True 3-way isolation
  • 20dB better CMR of noise spikes than competing models


Custom Signal Conditioning

Custom modules are available: consult factory for minimum quantity and pricing details on custom input ranges, output ranges, bandwidth, and other key parameters.


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Specifications

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  • ±0.03% Accuracy (Typical)
  • ±0.005% Linearity
  • 1500Vrms Transformer Isolation & 240 Vrms Field-side Protection
  • ANSI/IEEE C37.90.1 Transient Protection
  • 5V Power ( 30mA Typical)
  • 4- to 6-Pole Low-Pass Filtering
  • Up to 160dB CMR
  • 95dB NMR at 60Hz, 90dB at 50Hz
  • ±1 µV/°C Drift
  • Output Noise as low as 150μVrms
  • -40°C bis +85°C Operating Temperature
  • CSA C/US Certified (Class I, Division 2, Groups A, B, C, D)
  • CE and ATEX Compliant
  • Manufactured per RoHS Directive 2002/95/EC