The SEM1000 series is a simple to use 4-20mA loop isolator. It is an ideal solution to overcome ground loops. Designed to be series connected into a new or existing (4 to 20) mA current loop and provide an isolated (4 to 20) mA signal capable of driving a 300 ohm load. The output is powered by the input loop.
- Output powered from the input loop
- Ground loop isolation
- Galvanic Isolation
- High Accuracy & High Reliability
Why use a loop isolator? Many low cost transmitters do not have built in isolation, and can expose your PLC to voltage in the event of a component failure, The SEM1000 is a simple way to add isolation to temperature or power measurement 4-20mA transmitters, used with a PLC. Useful in HVAC systems, refrigeration systems, chillers, environmental monitoring, computer room monitoring, dryers, compressors, and other applications.
This ground loop isolator requires no user adjustment during commissioning. Minor adjustments can be made to the calibration of the device by means of the two front panel accessible calibration potentiometers. Incorrect connection in the loop will not damage the device as long as the specified maximum currents/voltages are not exceeded.
Detailed specifications are available on request.