SCM7B39, Process Control Signal Conditioner Current Output Module
- Current Output Module
- 1500 Vrms Transformer Isolation
- Accuracy: ± 0.03%
- DIN Rail Mounting with DIN Backpanel
- ANSI/IEEE C37.90.1 Transient Protection
- Output Protected to 120 V AC Continuous
- CSA C/US Certified
- CE and 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.
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.
| Family | Dataforth 7B |
| Input Type | 1 - 5 V DC |
| 0 - 10 V DC | |
| 4 - 20 mA | |
| # of Inputs | 1 |
| Output Type | 0 - 20 mA |
| 4 - 20 mA | |
| Bandwidth | 100 Hz |
| Isolation | Yes |
| Supply Power | 18 - 35 V DC |
| SCM7B39-01 | 1-5 V Input, 4-20 mA Output |
| SCM7B39-02 | 0-10 V Input, 0-20 mA Output |
| SCM7B39-03 | 0-10 V Input, 4-20 mA Output |
| SCM7B39-04 | 4-20 mA Input, 4-20 mA Output |
SCM7B39 Datasheet |
AN101 RMS_Voltage_Current App Note |
AN121 RiseTime vs BW App Note |
AN126 Tuning_Surge_Tank_Level_Control_Loops App Note |
AN128 RMS Revisited App Note |
AN129 Harmonics and utility costs App Note |
AN704-SCM7B Failure Rate and Calc. Prediction App Note |
Hysteresis Specifications Tech Note |
Faraday's Law of Induction Tech Note |
Data Acquisition Systems Accessories Tech Note |
Signal Conditioner Surge Withstand Capability Tech Note |
Signal-to-Noise Ratio, SNR Tech Note |
Signal Conditioning Measured vs Combinational Error Tech Note |
When Good Grounds Go Bad Tech Note |
Sample Test Report Tech Note |
Why Should Sensors Be Isolated Tech Note |
- Current Input Module
- 1500 V Transformer Isolation
- Accuracy: ± 0.03%
- DIN Rail Mounting with DIN Backpanel
- Module
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected to 120 V AC Continuous
| Family | Dataforth 7B |
| Input Type | 0 - 20 mA, 4 - 20 mA |
| # of Inputs | 1 |
| Output Type | 0 - 5 V DC, 1 - 5 V DC, 0 - 10 V DC |
| Bandwidth | 100 Hz |
| Isolation | Yes |
- Voltage Input Module
- 1500 V Transformer Isolation
- Accuracy: ± 0.03%
- DIN Rail Mounting with DIN Backpanel
- Module
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected to 120 V AC Continuous
| Family | Dataforth 7B |
| Input Type | 0 - 5 V DC, 1 - 5 V DC |
| # of Inputs | 1 |
| Output Type | 0 - 5 V DC, 1 - 5 V DC, 0 - 10 V DC |
| Bandwidth | 100 Hz |
| Isolation | Yes |
- 2-Wire Transmitter Interface Module with Loop Power
- 1500 V Transformer Isolation
- Accuracy: ± 0.03%
- DIN Rail Mounting with DIN Backpanel
- Module
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected to 120 V AC Continuous
| Family | Dataforth 7B |
| Input Type | 4 - 20 mA |
| # of Inputs | 1 |
| Output Type | 0 - 5 V DC, 1 - 5 V DC, 0 - 10 V DC, 2 - 10 V DC |
| Bandwidth | 100 Hz |
| Isolation | Yes |