The Messotron WLH Series Inductive Displacement Transducers, manufactured in Germany, represent the pinnacle of linear measurement solutions, custom-engineered to comply with the most stringent requirements of industrial automation and heavy-duty process control systems. Utilizing the advanced non-contact electromagnetic LVDT (Linear Variable Differential Transformer) operational principle, the WLH Series completely eliminates physical friction between the internal magnetic core and the surrounding coil assembly. This core technological design advantage secures a virtually limitless mechanical lifespan free from wear and tear, ensuring absolute measurement stability over prolonged operation while drastically reducing maintenance overhead for modern plants. The comprehensive product series features modular measuring spans ranging from micro-stroke configurations like the WLH 1, WLH 2, and WLH 5, to mid-range and extended-stroke variations such as the WLH 10, WLH 20, WLH 40, WLH 50, WLH 100, WLH 150, WLH 200, WLH 250, WLH 300, WLH 400, up to the maximum capacity WLH 500. This wide spectrum empowers instrumentation engineers to select the exact optimal stroke range (from ±0.5 mm up to several hundred millimeters) tailored to specific machinery geometries.

The defining hallmark of the Messotron WLH Series lies in its exceptional precision, marked by ultra-low linearity errors combined with near-infinite resolution capabilities, enabling the system to capture the most minute mechanical structural fluctuations. The heavy-duty sensor enclosure is constructed entirely from premium-grade industrial stainless steel, delivering outstanding resilience against severe mechanical shocks, corrosive chemical agents, and the ingress of heavy dust, cutting oils, or pressurized water jets in compliance with IP65/IP67 ingress protection standards. Thanks to optimized electro-mechanical architecture, the WLH Series features exceptionally low thermal drift coefficients, ensuring reliable data tracking in high-temperature hazard zones near metallurgical smelting furnaces or power plant turbine clusters. When paired with standardized Messotron carrier frequency signal conditioners, the sensor translates inductive variations into standard analog electrical signals (such as 4-20mA, 0-10V, or fieldbus protocols), allowing direct integration into centralized PLC architectures and SCADA systems for highly reliable, real-time closed-loop feedback controls. This transducer family serves as the premier and trusted industry standard for checking the thermal casing expansions of massive generator turbines, monitoring roller-gap displacements in hot/cold steel rolling mills, tracking hydraulic valve spool positions, and evaluating high-tech structural structural deformations in civil bridge construction projects.

• Manufacturer: Messotron (Hennig GmbH)
• Country of Origin: Germany
• Operating Principle: Non-contact Inductive LVDT Technology
• Included Models in Combined Series: WLH 1, WLH 2, WLH 5, WLH 10, WLH 20, WLH 40, WLH 50, WLH 100, WLH 150, WLH 200, WLH 250, WLH 300, WLH 400, WLH 500
• Linear Measuring Ranges: Ranging correspondingly from ±0.5 mm (for model WLH 1) up to a maximum wide range of 500 mm (for model WLH 500)
• Linearity Error: ≤ ±0.25% or ≤ ±0.5% of Full Scale (F.S.) depending on specific selection configurations
• Resolution: Infinite resolution, dependent upon external signal evaluation units
• Temperature Coefficient: Ultra-low thermal drift ensuring stable reading across the entire operating thermal span
• Recommended Carrier Frequency: Meticulously optimized within the 1 kHz to 10 kHz range
• Housing Construction Material: Premium high-grade Corrosion-Resistant Stainless Steel
• Ingress Protection Rating: IP65 standard rating (Optional upgrades to IP67 / IP68 available for submerged or severe dust applications)
• Mechanical Core Interfacing: Available with loose separate core configurations or spring-loaded self-returning core options based on applications
• Electrical Interface: Pre-assembled molded integrated cables or heavy-duty industrial waterproof connectors
• Standard Operating Temperature Range: -20°C to +120°C (Extended high-temperature options available up to +150°C or +200°C for specialized environments)