Baumer (www.baumer.com) has announced that its inductive outdoor sensors IWRR (distance-measuring sensors) and IFRR (proximity switches) have successfully passed the corrosion tests.

Both sensors were found to have satisfactorily complied with the requirements of the maximum corrosiveness category C5-M, making them ideally suited for use in demanding ambient conditions on the coast or at sea.

Digital inductive sensors are primarily used to detect the rotor speed and the nacelle position, while measuring sensors are used to monitor the shaft deflection and the brakes. In accordance with ISO 6270, the inductive outdoor sensors were considered to have complied with the requirements of the highest corrosiveness category after they have been subjected to a 60-day or 1440-hour salt spray test and a 720-hour condensation-water resistance test. The results revealed that Baumer’s sensors offer a very long service life.

With special design procedures and high-quality materials such as V4A stainless steel, the inductive sensors can guarantee a high level of resistance. The unique proTect+ impermeability concept enables the sensors to be completely leakproof even after numerous temperature cycles. Reliable functioning can also be guaranteed despite countless day-night cycles. This implies that the sensors are low-maintenance, featuring an average service life of more than 100 years.

In addition, the sensors’ wide temperature range of between -40 and +70°C guarantees constantly reliable detection results and measured values, even at great temperature fluctuations or extreme temperatures.