Baumer Inductive Sensors: Resistant to Aggressive Sea Air

The inductive outdoor sensors IFRR (proximity switches) and IWRR (distance -measuring sensors) by Baumer have passed the latest corrosion tests with flying colors. Both sensors meet the requirements of the highest corrosiveness category C5-M. Both sensors are therefore ideally suited to use in demanding ambient conditions at sea or on the coast, e.g. in wind power stations.

Digital inductive sensors are mainly used to detect the nacelle position and the rotor speed. Measuring sensors are applied for monitoring the brakes and the shaft deflection. To meet the requirements of the maximum corrosiveness category C5-M, the sensors were subjected to a 1440-hour or 60-day salt spray test in accordance with ISO 9227, followed by a 720-hour condensation-water resistance test in accordance with ISO 6270. The results show that these inductive sensors meet the highest corrosion resistance demands, and Baumer can guarantee a very long service life for its products.

High-quality materials like V4A stainless steel and special design procedures guarantee the high level of resistance of the inductive sensors. Thanks to the unique proTect+ impermeability concept, they are still completely leakproof in accordance with protection class IP 69K even after countless temperature cycles, and reliable functioning can be guaranteed even after many day-night cycles. This means that the sensors are especially low-maintenance, with an average service life (MTTF) of over 100 years. The wide temperature range of -40 to +70 °C also ensures constantly reliable measured values and detection results, even at extreme temperatures or great temperature fluctuations.

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