SCM7B32/33 - Isolated Process Current/Voltage Input Modules

Main features

  • Accepts Current or Voltage Input
  • Provides 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 120Vrms Continuous
  • Noise, 500µV Peak (5MHz), 300µV RMS (100kHz)
  • CMRR, up to 105dB
  • 80dB Per Decade of Attenuation Above 100Hz
  • Easy DIN Rail Mounting
  • CSA Certified, FM Approved
  • CE and ATEX Compliant
Clear
Price request Datasheet

The SCM7B32 current input modules accept input signals in the 4-20mA or 0- 20mA ranges from the field and provide a high-level output to the process control system. Current to voltage conversion occurs internal to the module, which is factory calibrated to ensure the highest accuracy.

SCM7B33 voltage input modules accept input signals in the +1V to +5V or 0 to +5V ranges from the field and provide a high-level output to the process control system. As an alternative, the SCM7B33 can be used with an external 250 ohm resistor (Dataforth SCM7BXR1 or equivalent), to accept input signals in the 4-20mA or 0-20mA ranges. Using the external sense resistor allows the module to be removed without disrupting the current loop. All SCM7B33s are shipped with a SCM7BXR1 resistor.

These modules incorporate a five-pole filtering approach to maximize both time and frequency response by taking advantage of both Thomson (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.

After the initial field-side filtering (conversion-SCM7B32 only), 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.

Modules accept a wide 14 – 35VDC power supply range (+24VDC nominal). Their compact packages (2.13″x1.705″x0.605″ max) save space and are ideal for high channel density applications. They are designed for easy DIN rail mounting using any of the “-DIN” backpanels.

SCM7B32-01 - Input range 4 to 20 mA Output range +1 to +5V

7B

SCM7B32-01A - Input range 4 to 20 mA Output range 0 to +5V

7B

SCM7B32-01D - Input range 4 to 20 mA Output range 0 to +10V

7B

SCM7B32-02 - Input range 0 to 20 mA Output range +1 to +5V

7B

SCM7B32-02A - Input range 0 to 20 mA Output range 0 to +5V

7B

SCM7B32-02D - Input range 0 to 20 mA Output range 0 to +10V

7B

SCM7B33-01 - Input range +1 to +5V Output range +1 to +5V

7B

SCM7B33-01A - Input range +1 to +5V Output range 0 to +5V

7B

SCM7B33-01D - Input range +1 to +5V Output range 0 to +10V

7B

SCM7B33-02 - Input range 0 to +5V Output range +1 to +5V

7B

SCM7B33-02A - Input range 0 to +5V Output range 0 to +5V

7B

SCM7B33-02D - Input range 0 to +5V Output range 0 to +10V

7B

SCM7B32/33Isolated Process Current/Voltage Input Modules
SCM7B32-01Input range 4 to 20 mA Output range +1 to +5V
SCM7B32-01AInput range 4 to 20 mA Output range 0 to +5V
SCM7B32-01DInput range 4 to 20 mA Output range 0 to +10V
SCM7B32-02Input range 0 to 20 mA Output range +1 to +5V
SCM7B32-02AInput range 0 to 20 mA Output range 0 to +5V
SCM7B32-02DInput range 0 to 20 mA Output range 0 to +10V
SCM7B33-01Input range +1 to +5V Output range +1 to +5V
SCM7B33-01AInput range +1 to +5V Output range 0 to +5V
SCM7B33-01DInput range +1 to +5V Output range 0 to +10V
SCM7B33-02Input range 0 to +5V Output range +1 to +5V
SCM7B33-02AInput range 0 to +5V Output range 0 to +5V
SCM7B33-02DInput range 0 to +5V 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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