This allows the user to reduce the “antenna effect”, which allows undesired signals to enter the instrumentation and controls.
The effectiveness of any ferrite core is based upon the material selection, number of wire turns around the core, and overall wire length. OMEGA’s ferrite connectors listed here have been developed for a multitude of general applications. The use of additional ferrite cores, as well as a specific selection of ferrite material, will provide a significant improvement in EMI suppression. While the OMEGA® ferrite connectors are designed for a multitude of applications, the amount of EMI suppression will vary from application to application.
Please consult the factory for those applications where the standard OMEGA’s ferrite connectors may not be sufficient.
Note: Built-in ferrite cores are available in male miniature connectors and both male and female standard size connectors.
How to install ferrite cores?
- OMEGA® temperature and process controllers and Panel Meters intended for installation in metal panels which should be connected to Earth Ground. (Standard rack panels are available from OMEGA Engineering. In environments with extreme electromagnetic radiation, shielded EMI cabinets offer additional protection.)
- NEVER run signal wires and power in the same conduit.
- Whenever electromagnetic compatibility is an issue, always use SHIELDED CABLES for all inputs and outputs. (A vast selection of shielded signal cable is available from OMEGA Engineering.) Connect the shield to the analog signal ground if appropriate or to earth ground.
- Install one (or more) FERRITE BEADS on each signal input wire close to the meter.