DSCA40/41

Analog Voltage Input Signal Conditioners, Wide Bandwidth

DESCRIPTION
Each DSCA40/41 voltage input module provides a single channel of analog input which is filtered, isolated, amplified, and converted to a high-level voltage output. Signal filtering is accomplished with a five-pole filter. 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.

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.
BLOCK DIAGRAM
ORDERING INFORMATION

Part Number Input Range Output Range Bandwidth Mechanical Format Isolation Voltage
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-10 to +10 mV -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-50 to +50 mV -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-100 to +100 mV -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-10 to +10 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-10 to +10 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-10 to +10 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-50 to +50 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-50 to +50 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-50 to +50 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-100 to +100 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-100 to +100 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-100 to +100 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +10 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +10 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +10 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +50 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +50 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +50 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +100 mV 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +100 mV 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +100 mV 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-1 to +1 V -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-5 to +5 V -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-10 to +10 V -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-1 to +1 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-1 to +1 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-1 to +1 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-5 to +5 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-5 to +5 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-5 to +5 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-10 to +10 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-10 to +10 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-10 to +10 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-20 to +20 V -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-20 to +20 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-20 to +20 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-20 to +20 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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-40 to +40 V -10 to +10 V 3 kHz DIN rail 1500 Vrms
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-40 to +40 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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-40 to +40 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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-40 to +40 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +1 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +1 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +1 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +5 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +5 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +5 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +10 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +10 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +10 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +20 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +20 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +20 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +40 V 0 to +10 V 3 kHz DIN rail 1500 Vrms
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0 to +40 V 4 to 20 mA 3 kHz DIN rail 1500 Vrms
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0 to +40 V 0 to 20 mA 3 kHz DIN rail 1500 Vrms
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Certifications
Certifications / Approvals
Features
  • Accepts Millivolt and Voltage Level Signals
  • Industry Standard Output of either 0-10V, ±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
  • 100dB CMR
  • 3 kHz Signal Bandwidth
  • ±0.03% Accuracy
  • ±0.01% Linearity
  • Easily Mounts on Standard DIN Rail
  • C-UL-US Listed
  • CE and ATEX Compliant