SCM7B39 Current Output Modules

SKU: SCM7B39
Category: Signal Conditioning
Manufacturers: Dataforth

Accepts High-Level Voltage Input
Provides 4-20mA or 0-20mA Current Output
CMRR 110dB, 80dB Per Decade of Attenuation Above 100Hz
ATEX Compliant

Input Range
Output Range

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129,60 €

excl. 19% VAT , plus

From	Unit price
5	138,24 €*
10	132,48 €*
20	129,60 €*

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Description
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Accepts High-Level Voltage Input
Provides 4-20mA or 0-20mA Current Output
1500Vrms Transformer Isolation
Accuracy, ±0.03% of Span Typical, ±0.1% Max
ANSI/IEEE C37.90.1 Transient Protection
Noise, 46µA Peak (5MHz), 4µA RMS (100kHz)
CMRR, 110dB
80dB Per Decade of Attenuation Above 100Hz
ATEX Compliant

SCM7B39 process current modules accept high-level signals from the process control system and provide either 0 to 20mA or 4 to 20mA current to the field.

These modules incorporate a five-pole filtering approach to maximize both time and frequency response by taking advantage of both Thomson (Bessel) and Butterworth characteristics. One pole of the filter is on the process control system side of the isolation barrier, and the other four poles are on the field side.

After the initial process control system side filtering, the signal is chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier, suppressing transmission of common mode spikes and surges. The signal is then reconstructed, filtered, and converted to a process current for output to the field.

These modules accept a wide 18 - 35VDC power supply range (+24VDC nominal). Their compact packages (2.13" x 1.705" x 0.605" max) save space and are ideal for high channel density applications. They are designed for easy DIN rail mounting using any of the "-DIN" backpanels.

Item information	Value
Input Type:	Volt
Output Type:	Analog
Module series:	7B Series

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