Applicazione
Range of application
Ex inductive sensors are suitable for positioning and controlling of lift cabins in the lift industry.
They are generally used as an alternative to mechanically operated limit switches in cases where unfavourable operating conditions, such as high or low actuating speeds, large switching frequencies, extreme dirt or dust production, high humidity, chemical atmospheres, highly fluctuating actuating distances, etc., occur. Even in the presence of aggressive materials, safe switching is ensured through theencapsulation of the contacts.
Design and mode of operation
The namur sensor changes its current consumption or its internal resistance with the approach of metal to the sensor surface. There are variants for flush and non-flush mounting. The protection class IP 67 even permits safe application under rough ambient conditions.
The EEx IS M12/M18/M30 range is offered as a complete system with a relay module, which is available in two variants for 24 VDC and 230 VAC operating voltages. The relay module, which is suitable forcabinet mounting, supplies the required intrinsic power for the sensor and transmits the sensor signal. The function of the input circuit can be programmed as NO or NC contact.
The LEDs of the EEx RM 1W 1 relay module indicate the operational condition of the sensor, as well as possible malfunctions such as wire breakages and short-circuits.
The Ex inductive sensors presented in this section have the CE marking as per Directive ATEX 94/9/EC from the certified Testing Laboratory TÜV Hannover/Sachsen-Anhalt, identification number 0032.
- Ex inductive sensors in the lift shaft at the entrance to the floor
