SCM7B39
Isolated Process Current Output Modules
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.
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.
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.
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.
Certifications
Documents
3D CAD Models
Product Availability
Usually stock to 3-5 weeks. Contact Customer Service for current lead times.
Dimensions & Accessories
Features
- 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
- Output Protected to 120Vrms Continuous
- Noise, 46µA Peak (5MHz), 4µA RMS (100kHz)
- CMRR, 110dB
- 80dB Per Decade of Attenuation Above 100Hz
- Easy DIN Rail Mounting
- CSA Certified, FM Approved
- CE and ATEX Compliant
Block Diagram
Ordering
NOTE: Data in below table can be filtered. Please use the
to make your selection. If you have any questions about the displayed data,
please contact Customer Service at +1 520-741-1404 or sales@dataforth.com
Custom Modules
Below is a list of existing custom modules. If you don't see a module matching your target specifications, contact Customer Service and Application Support to discuss design guidelines and
design feasibility. Customer Service and Application Support can be reached at
sales@dataforth.com or +1-800-444-7644.
NOTE: Data in below table can be filtered. Please use the
to make your selection. If you have any questions about the displayed data,
please contact Customer Service at +1 520-741-1404 or sales@dataforth.com
* ... Status Codes: PR = Production, PT = Prototypes, QU = Quoted
FAQ
We want your feedback!
We are interested in your feedback regarding our products. Please let us know what you think and if you have any questions regarding the SCM5B32 and how this product could apply to your application. Your feedback is very valuable to us and very much appreciated.
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