Eddy Current Displacement Sensor MTN/EP480

Monitoring axial position and thermal expansion in large rotating assets, such as hydraulic turbines or high-power generators, requires sensors with a measurement range far exceeding the standard. The MTN/EP480 addresses this need by providing a 12 mm contactless measurement window, enabling the monitoring of significant shaft displacements without risk of mechanical collision or sensor wear, thus ensuring safety in critical infrastructure.

This sensor utilizes the eddy current principle to deliver a nominal sensitivity of 1.4 mV/µm with linearity of 1%. Its electronic design allows it to capture variations from static position (DC) to high-speed dynamic components of 10 kHz. This capability is critical for shaft orbit analysis and the early detection of excessive clearances in white metal bearings, where a millimeter-level deviation can be the prelude to a catastrophic plant failure.

Built to operate under the most demanding conditions, the MTN/EP480 features a robust stainless steel body with an M30 thread and a 25 mm probe diameter. Its PEEK head ensures exceptional dielectric stability against industrial oils, allowing the sensor to maintain its accuracy at temperatures up to 180°C. Integration is achieved using high-fidelity RG179 cables, ensuring that displacement measurement transmission is immune to the electromagnetic interference typical of power generation environments.

• Maximum linear range up to 12 mm for large axial displacements.
• High thermal resistance with continuous operation in probe up to 180°C.
• M30 Reinforced Industrial Body for assemblies with high mechanical stability.
• Dual monitoring static position (gap) and dynamic vibration (up to 10 kHz).

Technical Frequently Asked Questions