DSCA45 Frequency Input Modules

SKU: DSCA45
Category: Signal Conditioning
Manufacturers: Dataforth

Accepts Frequency Inputs of 0 to 100kHz
Industry Standard Output of Either 0-10V, 0-20mA, or 4-20mA
± 0.05% Factory Calibrated Accuracy
Adjustable Zero (±5%) and Span (±5%)
ATEX Compliant

Input Range
Output Range

from

299,70 €

excl. 19% VAT , plus

From	Unit price
5	319,68 €*
10	306,36 €*
20	299,70 €*

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This item has variations. Please select the requested variation.

Description

Accepts Frequency Inputs of 0 to 100kHz
Industry Standard Output of Either 0-10V, 0-20mA, or 4-20mA
± 0.05% Factory Calibrated Accuracy
Adjustable Zero (±5%) and Span (±5%)
1500Vrms Transformer Isolation
Input Overload Protected to 240VAC Continuous
ANSI/IEEE C37.90.1 Transient Protection
Mounts on Standard DIN Rail
ATEX Compliant

Each DSCA45 frequency input module provides a single channel of frequency input which is isolated and converted to a standard analog voltage or current output. The frequency input signal can be a TTL level or zero-crossing signal. Terminal 7 (-IN) on the field-side terminal block is the "common" or ground connection for input signals. A TTL signal is connected from terminal 6 (+IN) to terminal 7 (-IN), while a zero-crossing signal is connected from terminal 5 (+EXC) to terminal 7 (-IN). Input circuitry for each of the signal types has hysteresis built in. An input signal must cross entirely through the hysteresis region in order to trigger the threshold comparator.

A +5.1V excitation is available for use with magnetic pick-up or contact-closure type sensors. The excitation is available on terminal 8 (-EXC) with return at terminal 7 (-IN). The 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 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.

DSCA45 modules have excellent stability over time and do not require recalibration, however, both zero and span settings are adjustable 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.

Item information	Value
Output Type:	Analog
Module series:	DSCA Series
Input Type:	Frequency