SCM7B35 2-Wire Transmitter Interface Modules With Loop Power

SCM7B35 2-Wire Transmitter Interface Modules With Loop Power

SKU: SCM7B35
Category: Signal Conditioning
Manufacturers: Dataforth

2-Wire Transmitter Interface
Accepts 4-20mA Signals
Provides an Isolated +24VDC Supply to Power the Loop
ATEX Compliant

Input Range
Output Range

from

147,60 €

excl. 19% VAT , plus

From	Unit price
5	157,44 €*
10	150,88 €*
20	147,60 €*

Currently out of stock

This item has variations. Please select the requested variation.

Description
Notify me when this item is available

2-Wire Transmitter Interface
Accepts 4-20mA Signals
Provides an Isolated +24VDC Supply to Power the Loop
Provides High-Level Voltage Outputs
Accuracy, ±0.03% of Span Typical, ±0.1% Max
120Vrms Input Protection
CMRR, 105dB
80dB Per Decade of Attenuation Above 100Hz
ATEX Compliant

SCM7B35 current input modules accept input signals in the 4-20mA range from the field and provide a high-level voltage output to the process control system. Current to voltage conversion occurs internal to the module, which is factory calibrated to ensure the highest accuracy.

Loop power is provided by the module, enabling a 2-wire transmitter to be directly connected without the need for a separate dc power supply for the 2-wire transmitter. 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, 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 18 - 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

Contact data

E-Mail