DSCT Series

Isolated DIN Rail Mount 2-Wire Transmitters


DSCT Loop powered two-wire transmittersDataforth's DSCT series of loop powered 2-wire transmitters consists of seven family groups with a total of 48 transmitter models that interface to a wide variety of voltage, current, temperature and position measuring devices.

  • DSCT 2-wire transmitters condition and send analog signals from sensors located in the field to monitoring and control equipment, usually computers, located thousands of feet away in central control areas
  • They accept a wide range of inputs, including millivolt, volt, milliamp, thermocouple, RTD, potentiometer, and slide wire
  • They operate on power from a 2-wire signal loop and modulate the supply current to represent the input signal within a 4 to 20mA range

Two-wire transmission loops provide very economical connections between sensors and distant control rooms. Since the DSCT operates from the signal loop current, only low cost, twisted pair wiring is needed.


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

  • ±0.03% Accuracy (Typical)
  • ±0.01% Linearity
  • 1500Vrms Transformer Isolation & 240Vrms Field-side Protection
  • ANSI/IEEE C37.90.1 Transient Protection
  • Wide Loop Supply Voltage, 10.8V to 60V
  • 5-Pole Low-Pass Filtering
  • Up to 160dB CMR
  • 85dB NMR at 60Hz, 80dB at 50Hz
  • Protected Against Reverse Connection of Loop Voltage
  • -40°C to +80°C Operating Temperature
  • Mounts on DIN Rail EN 50022, 35x7.5 or 35x15
  • CSA C/US Certified (Class I, Division 2, Groups A, B, C, D)
  • CE Compliant
  • Manufactured per RoHS Directive (EU) 2015/863 (RoHS 3)

DSCT Series Product Family

Part Number Datasheet Description
Analog Voltage Input Transmitters
Analog Current Input Transmitters
Linearized 2- or 3-Wire RTD Input Transmitters
Potentiometer Input Transmitters
Non-Linearized Thermocouple Input Transmitters
Linearized Thermocouple Input Transmitters
Accessories, backpanels, and module dimensions
Module Dimensions and Pinouts

Frequently Asked Questions

Do you have replacement terminal blocks for DSCA and DSCT modules?
Yes. Replacement terminal blocks are the following.

DSCAX-01 labeled 1 2 3 4.

DSCAX-02 labeled 5 6 7 8.

Keywords/Phrases: DSCA terminal blocks, replacement terminal blocks, DSCA replacement terminal blocks, DSCT terminal blocks, DSCT replacement terminal blocks

Can Dataforth provide calibration reports for modules I purchased?
Yes we can provide calibration reports for the modules that you purchased.

You can either
a) visit https://www.dataforth.com/TestDataReport.aspx to search for Test Report Datasheets by Serial Number or
b) you can send us a list of model numbers and their serial numbers to support@dataforth.com

On DSCA’s, what are the zero and span adjusters physically?
The DSCA and DSCT zero and span adjustments are made using trimpots located under the front panel label and are non-interactive for ease of use. The trimpot screw heads are behind perforated circular knockouts labeled Ø and <->. The screw heads are slotted to accept a narrow flat blade screwdriver. The zero and span adjusters are 25Turn trimpots.

Keywords/Phrases: DSCA zero, DSCA span, DSCT zero, DSCT span, DSCA adjustment, DSCT adjustment, trimpots

Is an external conversion resistor required in order to use the DSCT32 module?
No, an external conversion resistor is not required in order to use the DSCT32 module. The current/voltage conversion is achieved by an internal resistor as shown in the block diagram in the data sheet.

An external conversion resistor in the case of the DSCT32 could be used to shunt off some of the current from the module and allow a larger input current range; then they could also be used with voltage input modules to convert a non-standard current range into an input voltage range.

Keywords/Phrases: DSCT32, internal resistor, external conversion resistor

Does Dataforth have any options for thermistor input?
Thermistor interface has never been designed for SCM7B, 8B, DSCT, or MAQ20 product lines. However, we do have some custom products in the SCM5B line that can accept thermistor interface. Any SCM5B36, SCM7B36, 8B36, DSCA36, DSCT36 module with potentiometer input 0-10kohm may also be suitable for some sensors.

How does the load resistance of a module affect the noise at the output?
Noise at the output of a module is independent of load resistance.

If a thermocouple is soldered to a lead that has current running through it, how do you avoid affecting the thermocouple signal and subsequent measurement?
The thermocouples must be isolated so current does not come from the circuit under test and run through them. SCM5B, SCM7B, 8B, DSCA, DSCT, MAQ20 all offer the required isolation.

How do I mount and remove a DIN rail module?
To mount the module, do the following.
With the DIN rail mounted horizontally on a vertical panel, hang the hook at the top rear of the module over the top edge of the DIN rail.
Then rotate the module down so the bottom rear corner of the module touches the bottom edge of the DIN rail.
Then push on the bottom front corner of the module until you hear and feel a click. Push and pull the front of the module to ensure it is securely held on the DIN rail.

To remove the module, do the following.
Using a small screwdriver, insert it into the slot on the movable clip (red for DSCA & DSCT) under the bottom rear corner of the module.
Rotate the body of the screwdriver toward the body of the module until the movable clip disengages the bottom edge of the DIN rail and you can rotate the module upward.
Then you can unhook the module from the top edge of the DIN rail.

Keywords/Phrases: DSCA, DSCT, DIN rail module, mounting, removing

What is the MTBF for DSCT32?
The MTBF for DSCT32 is 624,000 hours.

Due to resource constraints on my computer, I'm unable to open the three dimensional CAD models provided on your website. Does Dataforth provide two demensional CAD models for download as well?
Two dimensional CAD models can be generated upon customer request. Please contact Customer Service for assistance.
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