SCM7B36 - Isolated Potentiometer Input Module

Main features

  • Interfaces 100 Ohm to 10k Ohm Potentiometers
  • High Level Voltage Outputs
  • 1500Vrms Transformer Isolation
  • Accuracy, ±0.03% of Span Typical, ±0.1% Max
  • ANSI/IEEE C37.90.1 Transient Protection
  • Input Protected to 120VAC Continuous
  • CSA Certified, FM Approved
  • CE and ATEX Compliant
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Price request Datasheet

Each SCM7B36 Potentiometer input module provides a single channel of resistance input which is filtered, isolated, amplified, and converted to a high level analog voltage output.

The SCM7B36 module interfaces to slidewires and potentiometers in both two or three wire configuration and incorporates a five-pole filtering approach to maximize both time and frequency response by taking advantage of both Bessel and Butterworth characteristics. One pole of the filter is on the field side of the isolation barrier; four are on the process control system side. In the 3-Wire configuration, lead resistance compensation is provided if the resistance of the “x” lead is closely equivalent to that of the “+” lead. Internal to the module, measurement error due to lead resistance is canceled.

In response to the low level current excitation, and after initial field-side filtering, the input signal is chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier, suppressing transmission of common mode spikes and surges. The signal is then reconstructed and filtered for process control system output.

Six standard input resistance ranges are offered, from 100 Ohm to 10k Ohm, with three output ranges available: 0-5V, 1-5V, and 0-10V. Modules accept a wide 14-35VDC power supply range (+24VDC nominal). Their compact packages (2.13″ x 1.705″ x 0.605″ max.) save space and are ideal for high channel density applications. They are designed for easy DIN rail mounting using any of Dataforth’s “-DIN” backpanels.

SCM7B36-01 - Input Range 0 to 100 Ohms Output Range +1 to +5V

7B

SCM7B36-01A - Input Range 0 to 100 Ohms Output Range 0 to +5V

7B

SCM7B36-01D - Input Range 0 to 100 Ohms Output Range 0 to +10V

7B

SCM7B36-02 - Input Range 0 to 200 Ohms Output Range +1 to +5V

7B

SCM7B36-02A - Input Range 0 to 200 Ohms Output Range 0 to +5V

7B

SCM7B36-02D - Input Range 0 to 200 Ohms Output Range 0 to +10V

7B

SCM7B36-03 - Input Range 0 to 500 Ohms Output Range +1 to +5V

7B

SCM7B36-03A - Input Range 0 to 500 Ohms Output Range 0 to +5V

7B

SCM7B36-03D - Input Range 0 to 500 Ohms Output Range 0 to +10V

7B

SCM7B36-04 - Input Range 0 to 1000 Ohms Output Range +1 to +5V

7B

SCM7B36-04A - Input Range 0 to 1000 Ohms Output Range 0 to +5V

7B

SCM7B36-04D - Input Range 0 to 1000 Ohms Output Range 0 to +10V

7B

SCM7B36-05 - Input Range 0 to 5000 Ohms Output Range +1 to +5V

7B

SCM7B36-05A - Input Range 0 to 5000 Ohms Output Range 0 to +5V

7B

SCM7B36-05D - Input Range 0 to 5000 Ohms Output Range 0 to +10V

7B

SCM7B36-06 - Input Range 0 to 10000 Ohms Output Range +1 to +5V

7B

SCM7B36-06A - Input Range 0 to 10000 Ohms Output Range 0 to +5V

7B

SCM7B36-06D - Input Range 0 to 10000 Ohms Output Range 0 to +10V

7B

SCM7B36Isolated Potentiometer Input Module
SCM7B36-01Input Range 0 to 100 Ohms Output Range +1 to +5V
SCM7B36-01AInput Range 0 to 100 Ohms Output Range 0 to +5V
SCM7B36-01DInput Range 0 to 100 Ohms Output Range 0 to +10V
SCM7B36-02Input Range 0 to 200 Ohms Output Range +1 to +5V
SCM7B36-02AInput Range 0 to 200 Ohms Output Range 0 to +5V
SCM7B36-02DInput Range 0 to 200 Ohms Output Range 0 to +10V
SCM7B36-03Input Range 0 to 500 Ohms Output Range +1 to +5V
SCM7B36-03AInput Range 0 to 500 Ohms Output Range 0 to +5V
SCM7B36-03DInput Range 0 to 500 Ohms Output Range 0 to +10V
SCM7B36-04Input Range 0 to 1000 Ohms Output Range +1 to +5V
SCM7B36-04AInput Range 0 to 1000 Ohms Output Range 0 to +5V
SCM7B36-04DInput Range 0 to 1000 Ohms Output Range 0 to +10V
SCM7B36-05Input Range 0 to 5000 Ohms Output Range +1 to +5V
SCM7B36-05AInput Range 0 to 5000 Ohms Output Range 0 to +5V
SCM7B36-05DInput Range 0 to 5000 Ohms Output Range 0 to +10V
SCM7B36-06Input Range 0 to 10000 Ohms Output Range +1 to +5V
SCM7B36-06AInput Range 0 to 10000 Ohms Output Range 0 to +5V
SCM7B36-06DInput Range 0 to 10000 Ohms Output Range 0 to +10V

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SCM7BP01 - Single channel backpanel with standoffs for mounting. SCM7BP01 -
Single channel backpanel with standoffs for mounting.

The SCM7BP01 is 1 backpanel. Unlike other backpanels available, both the system and field side sides have screw terminal connectors able to accept discrete wire (10-24 AWG). The ...

SCM7BP02 - Dual channel backpanel with standoffs for mounting. SCM7BP02 -
Dual channel backpanel with standoffs for mounting.

The SCM7BP02 is a two slots backpanel. Unlike other backpanels available, both the system and field side sides have screw terminal connectors able to accept discrete wire (10-24 ...

SCM7BP04 - Four channel backpanel with standoffs for mounting. SCM7BP04 -
Four channel backpanel with standoffs for mounting.

The SCM7BP04 is a four slots backpanel and can accept any of the SCM7B analog modules.

SCM7BP08 - Eight channel backpanel with standoffs for mounting. SCM7BP08 -
Eight channel backpanel with standoffs for mounting.

The SCM7BP08 is a eight slots backpanel and can accept any of the SCM7B analog modules.

SCM7BP16 - Sixteen channel backpanel with standoffs for mounting. SCM7BP16 -
Sixteen channel backpanel with standoffs for mounting.

The SCM7BP16 is a sixteen slots backpanel and can accept any of the SCM7B analog modules.

SCM7BPT - Non isolated pass-thru SCM7B module SCM7BPT -
Non isolated pass-thru SCM7B module

The SCM7BPT is a non isolated pass-thru module

SCM7BXCA01 - DB25 to 26 pin adapter cable SCM7BXCA01 -
DB25 to 26 pin adapter cable

The SCM7BXCA01 is DB25 to 26 pin adapter cable

SCM7BXCA02 - DB25 to DB25 adapter cable SCM7BXCA02 -
DB25 to DB25 adapter cable

The SCM7BXCA02 is DB25 to DB25 adapter cable

SCM7BXEV - 1 channel evaluation backpanel SCM7BXEV -
1 channel evaluation backpanel

The SCM7BXEV is 1 channel evaluation backpanel

SCM7BXR1 - 250 Ohm current conversion resistor SCM7BXR1 -
250 Ohm current conversion resistor

The SCM7BXR1 is a 250 Ohm current conversion resistor

SCMXBE - DIN rail base element without snap foot SCMXBE -
DIN rail base element without snap foot

The SCMXBE is DIN rail base element without snap foot

SCMXBEFE - DIN rail base element with snap foot SCMXBEFE -
DIN rail base element with snap foot

The SCMXBEFE is DIN rail base element with snap foot

SCMXCA006 - Interface cables SCMXCA006 -
Interface cables

System interface cable for the 8BP04/08/16 backpanels. This is a DB25 Male/Female cable assembly. It can be ordered in lengths of 1m, 2m, and 7m.

SCMXRK-002 - 19 "metal rack for mounting SCMXRK-002 -
19 "metal rack for mounting

The SCMXRK-002 is a 19"metal rack for mounting 8BP04/08/16 rear panels and 8BXIF interface board, SCMPB01/02/05/06 et SCM7BP04/08/16

SCMXSE - DIN rail side element SCMXSE -
DIN rail side element

The SCMXSE is DIN rail side element

SCMXVS - DIN rail connection pins SCMXVS -
DIN rail connection pins

The SCMXVS is DIN rail connection pins

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