Corrosion & Erosion Monitor URL: https://www.clampon.com/products/corrosion-erosion-monitor/ Type: ProductPage Updated: 2026-04-22 The patented ClampOn non-intrusive Corrosion-Erosion Monitor (CEM) has been designed to monitor the average wall thickness loss of pipes, containers and any large object that requires corrosion and/or erosion monitoring; pipeline corrosion and erosion monitoring. The ClampOn Corrosion and Erosion Monitor (CEM) system utilizes a unique method of monitoring wall thickness loss by the use of clamp-on sensors. A number of transducers measure corrosion-erosion by transmitting ultrasonic signals that propagate through pipe material. Using ClampOn acoustic transducers means that no drilling or welding that would cause loss of production is required. How the ClampOn Corrosion-Erosion Monitor works The ClampOn Topside Corrosion Erosion Monitor (CEM) is an non-intrusive ultrasonic instrument designed to measure wall thickness loss in pipes over a defined area. It uses active ultrasound and exploits the properties of Acoustic Guided Lamb Waves to detect the changes in wall thickness relative to reference values obtained during the installation of the system. Changes to wall thickness is detected by a grid of signal paths, generated by up to 32 transducers. The permanently installed CEM system ensures that measurements are repeated frequently and in exactly the same manner, thereby eliminating the weaknesses of manual ultrasonic thickness gauging. Wall thickness trends are generated automatically and can be observed in real time. ClampOn Erosion and Corrosion Monitor Advantages of using the ClampOn Corrosion-Erosion Monitor The Corrosion Erosion Monitor consists of a Head Unit and up to 32 smaller transducers. The Head Unit processes and controls the signals, communicating with the electromagnetic ultrasonic transducers which are fixed to the selected pipe section. The signal path follows the metal structure between the transceivers in operation, generating a matrix of measurements with thickness information. The number of Head Units and transducers to be used is decided by the client in consultation with ClampOn. Accurate and reliable measurement of corrosion and erosion is a natural part of best practice, as this will enable you to monitor the condition of your pipes, determine inspection intervals more accurately, and ensure safer and more cost effective operation. Major operators have selected the ClampOn topside CEM as the best solutions for their topside assets and operations. • Real time • Non-intrusive • Retrofit installable • Large coverage area • Accurate/high resolution • Possibility for tomography • Pipeline corrosion monitoring CEM Signal path Integration of the ClampOn Corrosion-Erosion Monitor Our Corrosion Erosion Monitor will be interfaced using digital RS485 to a computer running our corrosion erosion software. The computer will then interface with the Control system using all available interfaces and protocols. It is optional how much data that will be sent across to the control system. As a minimum the average wall thickness will be used. Corrosion Erosion Monitor Tomography stright pipe Specifications for the ClampOn Corrosion-Erosion Monitor Instrument Datasheet ClampOn CEM Instrument Datasheet ClampOn CEM Transducer Additional information about the ClampOn Corrosion-Erosion Monitor ClampOn-Topside-CEM-Brochure-April-2024 ClampOn Topside CEM Brochure https://www.clampon.com/field-cases/field-case-buried-corrosion-monitor/ Field Case: Buried Corrosion Monitor Corrosion Monitoring Corrosion Monitoring https://www.clampon.com/sand-erosion-monitoring/ Combining Sand & Erosion Monitoring Optimizing corrosion management Corrosion monitoring when injecting corrosion inhibitors Frequently asked questions FAQ Corrosion Monitoring #corrosion-monitoring Want to know more about our products? Source: ClampOn AS Canonical: https://www.clampon.com/products/corrosion-erosion-monitor/ Locale: en