dsca33-07 Dataforth Corporation, dsca33-07 Datasheet

dsca33-07

Manufacturer Part Number

dsca33-07

Description

Isolated True Rms Input Signal Conditioners

Manufacturer

Dataforth Corporation

Datasheet

1.DSCA33-07.pdf (2 pages)

Current page: 1 of 2
Download datasheet (129Kb)

DSCA33

Isolated True RMS Input Signal Conditioners

Description

Each DSCA33 True RMS input module provides a single channel of AC input

which is converted to its True RMS DC value, filtered, isolated, amplified, and

converted to standard process voltage or current output (Figure 1).

The field voltage or current input signal is processed through an AC coupled

pre-amplifier and RMS converter on the field side of the isolation barrier. The

converted dc signal is then filtered and chopped by a proprietary chopper

circuit and transferred across the transformer isolation barrier, suppressing

transmission of common mode spikes and surges. The computer side circuitry

reconstructs, filters and converts the signal to industry standard outputs.

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

power-line voltages up to 480VAC 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 pluggable terminal blocks for ease of system assembly

and reconfiguration.

DSCA33 modules have excellent stability over time and do not require

recalibration, however, both zero and span settings are adjustable to accom-

modate 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.

Due to circuit limitations, DSCA33-04x and -05x are not ATEX compliant.

Figure 1: DSCA33 Block Diagram

192

For information call 800-444-7644

** Add jumpers for Current Input Modules

High Performance Signal Conditioners

* Current Input Models only

(provided with DSCA33-06, -07)

• Interfaces RMS Voltage (0 – 300V) or

• Designed for Standard Operation with

• Compatible with Standard Current and

• Industry Standard Output of either 0-1mA,

• ±0.25% Factory Calibrated Accuracy

• ±5% Adjustable Zero and Span

• 1500Vrms Transformer Isolation

• Input Overload Protected to 480V

• ANSI/IEEE C37.90.1 Transient Protection

• Easily Mounts on Standard DIN Rail

• C-UL-US Listed and CE Compliant

• ATEX Compliant (all models except

RMS Current (0 – 5A)

Frequencies of 45Hz to 1000Hz

(Extended Range Operation to 20kHz)

Potential Transformers

0-20mA, 4-20mA, 0-5V, or 0-10VDC

(Accuracy Class 0.2)

(Peak AC & DC) or 10A RMS Continuous

DSCA33-04x, -05x)

Features

DSCA

Related parts for dsca33-07

dsca33-07 Summary of contents

Page 1

... DSCA33 Isolated True RMS Input Signal Conditioners Description Each DSCA33 True RMS input module provides a single channel of AC input which is converted to its True RMS DC value, filtered, isolated, amplified, and converted to standard process voltage or current output (Figure 1). The field voltage or current input signal is processed through an AC coupled pre-amplifier and RMS converter on the field side of the isolation barrier ...

Page 2

... DSCA33- 150V DSCA33- 300V DSCA33- DSCA33- † Modules can be ordered with other input/output ranges. Consult factory for ordering details and specifications † Output Ranges Available Output Range Part No ...

Related keywords

dsca33-07 datasheet
dsca33-07 data sheet
dsca33-07 pdf datasheet
dsca33-07 component
dsca33-07 part
dsca33-07 distributor
dsca33-07 RoHS
dsca33-07 datasheet download