Inductive all-metal sensors for safety applications
At SPS, ifm is presenting new inductive proximity sensors in all-metal housings for safety applications in three sizes: M12, M18, and M30 with a housing length of 60 mm. For use in mobile machinery, they are designed for a temperature range from -40 °C to +85 °C; for food applications, the temperature range is from -25 °C to +100 °C. There are initially six different types of the new sensors, which are suitable for applications up to SIL-2 according to IEC 61508 or PL d according to EN ISO 13849. The connection technology is based on proven M12 connectors.
The robust all-metal housing effectively protects the sensor against harsh environmental influences. Even shocks and vibrations are no problem. Unlike models with a plastic front, there are no problems with permeation through the material. This makes the sensors very durable and largely eliminates errors.
A typical application in the food industry is the monitoring of manholes in tanks, silos, and other large containers. Access to these must be monitored safely to eliminate hazards to personnel. Manholes must also be monitored safely on mobile work machines. This applies, for example, to the waste containers in street sweepers. Another application is the monitoring of supports on mobile cranes mounted on trucks. The crane may only lift loads once these supports have been extended and lowered. The new inductive proximity sensors with all-metal housings are ideally suited for these and many other safety applications.

At SPS, ifm is presenting new inductive proximity sensors in all-metal housings for safety applications in three sizes: M12, M18, and M30 with a housing length of 60 mm. For use in mobile machinery, they are designed for a temperature range from -40 °C to +85 °C; for food applications, the temperature range is from -25 °C to +100 °C. There are initially six different types of the new sensors, which are suitable for applications up to SIL-2 according to IEC 61508 or PL d according to EN ISO 13849. The connection technology is based on proven M12 connectors.
The robust all-metal housing effectively protects the sensor against harsh environmental influences. Even shocks and vibrations are no problem. Unlike models with a plastic front, there are no problems with permeation through the material. This makes the sensors very durable and largely eliminates errors.
A typical application in the food industry is the monitoring of manholes in tanks, silos, and other large containers. Access to these must be monitored safely to eliminate hazards to personnel. Manholes must also be monitored safely on mobile work machines. This applies, for example, to the waste containers in street sweepers. Another application is the monitoring of supports on mobile cranes mounted on trucks. The crane may only lift loads once these supports have been extended and lowered. The new inductive proximity sensors with all-metal housings are ideally suited for these and many other safety applications.
