DSCA36 - Potentiometer Input Signal Conditioners

Main features

  • Interfaces to Potentiometers up to 10 kOhm
  • Industry Standard Output of Either 0-10V, 0-20mA, or 4-20mA
  • 1500Vrms Transformer Isolation
  • ANSI/IEEE C37.90.1 Transient Protection
  • Input Protected to 240VAC Continuous
  • True 3-Way Isolation
  • Wide Range of Supply Voltage
  • 160dB CMR
  • 85dB NMR at 60Hz, 80dB at 50Hz
  • ±0.03% Accuracy
  • ±0.01% Linearity
  • Easily Mounts on Standard DIN Rail
  • C-UL-US Listed
  • CE and ATEX Compliant
Clear
Price request Datasheet

Each DSCA36 potentiometer input module provides a single channel of potentiometer input which is filtered, isolated, amplified, and converted to a high-level voltage output. Signal filtering is accomplished with a five-pole filter which provides 85dB of normal-mode rejection at 60Hz and 80dB at 50Hz. An anti-aliasing pole is located on the field side of the isolation barrier, and the other four poles are on the system 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.

Potentiometer excitation is provided from the module using a precision current source. Lead compensation is achieved by matching two current paths which cancels the effects of lead resistance. The excitation current is small (approx. 0.25mA) which minimizes self-heating of the sensor.

Module output is either voltage or current. For current output models a dedicated loop supply is provided at terminal 3 (+OUT) with loop return located at terminal 4 (-OUT). The system-side load may be either floating or grounded.

Special input circuits provide protection against accidental connection of powerline voltages up to 240VAC and against transient events as defined by ANSI/ IEEE C37.90.1. Protection circuits are also present on the signal output and power input terminals to guard against transient events and power reversal. Signal and power lines are secured to the module using screw terminals which are in pluggable terminal blocks for ease of system assembly and reconfiguration.

The modules have excellent stability over time and do not require recalibration, however, zero and span settings are adjustable up to ±5% to accommodate situations where fine-tuning is desired. The adjustments are made using potentiometers located under the front panel label and are non-interactive for ease of use.

DSCA36-01 - Input Range: 0 to 100 Ohms Output Range 0 to +10 V

DSCA

DSCA36-01C - Input Range: 0 to 100 Ohms Output Range 4 to 20 mA

DSCA

DSCA36-01E - Input Range: 0 to 100 Ohms Output Range 0 to 20 mA

DSCA

DSCA36-02 - Input Range: 0 to 500 Ohms Output Range 0 to +10 V

DSCA

DSCA36-02C - Input Range: 0 to 500 Ohms Output Range 4 to 20 mA

DSCA

DSCA36-02E - Input Range: 0 to 500 Ohms Output Range 0 to 20 mA

DSCA

DSCA36-03 - Input Range: 0 to 1000 Ohms Output Range 0 to +10 V

DSCA

DSCA36-03C - Input Range: 0 to 1000 Ohms Output Range 4 to 20 mA

DSCA

DSCA36-03E - Input Range: 0 to 1000 Ohms Output Range 0 to 20 mA

DSCA

DSCA36-04 - Input Range: 0 to 10000 Ohms Output Range 0 to +10 V

DSCA

DSCA36-04C - Input Range: 0 to 10000 Ohms Output Range 4 to 20 mA

DSCA

DSCA36-04E - Input Range: 0 to 10000 Ohms Output Range 0 to 20 mA

DSCA

DSCA36Potentiometer Input Signal Conditioners
DSCA36-01Input Range: 0 to 100 Ohms Output Range 0 to +10 V
DSCA36-01CInput Range: 0 to 100 Ohms Output Range 4 to 20 mA
DSCA36-01EInput Range: 0 to 100 Ohms Output Range 0 to 20 mA
DSCA36-02Input Range: 0 to 500 Ohms Output Range 0 to +10 V
DSCA36-02CInput Range: 0 to 500 Ohms Output Range 4 to 20 mA
DSCA36-02EInput Range: 0 to 500 Ohms Output Range 0 to 20 mA
DSCA36-03Input Range: 0 to 1000 Ohms Output Range 0 to +10 V
DSCA36-03CInput Range: 0 to 1000 Ohms Output Range 4 to 20 mA
DSCA36-03EInput Range: 0 to 1000 Ohms Output Range 0 to 20 mA
DSCA36-04Input Range: 0 to 10000 Ohms Output Range 0 to +10 V
DSCA36-04CInput Range: 0 to 10000 Ohms Output Range 4 to 20 mA
DSCA36-04EInput Range: 0 to 10000 Ohms Output Range 0 to 20 mA

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