EDM Assessment
An MCERTS inspection involves numerous steps to ensure a rigorous and accurate appraisal of the installation. During a recent site visit, our MCERTS inspectors carried out the following steps as part of their EDM inspection:
✅ Correct location of EDM (no more than 5 times upstream of the weir)
✅ Mounted correctly to a secure, robust bracket – shielded from the sun
✅ Sensor height within a range able to provide good accuracy and repeatability
✅ Good access to storm weir to carry out inspection and cleaning
One area for close monitoring that we picked up was that the sensor had been fitted with a submergence shield. Our little spider friends sometimes move in to these structures and their webs can create a barrier in front of the ultrasonic sensor. The site was advised to carry out regular checks and cleaning of the sensor to ensure this didn’t happen.