The best time to solve EMC issues is before they happen, during the design phase when the greatest amount of design flexibility exists. AMS offers comprehensive EMC design reviews for equipment upgrades to minimize any EMI risk posed by the system to the plant environment and reduce emission levels generated by the system. These design reviews provide recommendations on various aspects such as component layout and selection, locations of signal and power I/O, EMI filtering, cable routing and terminations, and grounding and shielding methods to ensure all EMC best practices have been incorporated for the final plant installation. Performing a design review helps to minimize the number of modifications necessary during formal EMC qualification, which can significantly shorten the qualification process and help control project costs.
In addition to design reviews, numerous facilities use EMI/RFI Site Surveys to support equipment upgrades as well as site-wide implementation of wireless devices. EMI/RFI Site Surveys use passive antennas and/or current probes to capture and characterize the Electromagnetic Environment (EME) in a certain area. The data can be used in conjunction with EMC qualification reports or industry standards to ensure that the equipment is compatible with the plant environment. These site surveys are an invaluable tool for new site upgrades as they provide increased assurance of compatibility and can be used as justification in cases of excessive emissions during qualification.