SCM7B32 Isolated Current Input Modules

SKU: SCM7B32
Category: Signal Conditioning
Manufacturers: Dataforth

Accepts Current or Voltage Input
Provides High-Level Voltage Outputs
±0.03% accuracy
CMRR, up to 105dB
ATEX Compliant

Input Range
Output Range

from

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 Current or Voltage Input
Provides High-Level Voltage Outputs
1500Vrms Transformer Isolation
Accuracy, ±0.03% of Span Typical, ±0.1% Max
Noise, 500µV Peak (5MHz), 300µV RMS (100kHz)
CMRR, up to 105dB
80dB Per Decade of Attenuation Above 100Hz
Easy DIN Rail Mounting
ATEX Compliant

The SCM7B32 current input modules accept input signals in the 4-20mA or 0- 20mA ranges from the field and provide a high-level output to the process control system. Current to voltage conversion occurs internal to the module, which is factory calibrated to ensure the highest accuracy.

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 field side of the isolation barrier; four are on the process control system side.

After the initial field-side filtering (conversion-SCM7B32 only), the input 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 and filtered for process control system output.

These modules accept a wide 14 - 35VDC power supply range (+24VDC nominal). Their compact packages (2.13"x1.705"x0.605" 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
Output Type:	Analog
Module series:	7B Series
Input Type:	Milliamps

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