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Range of application
The Ex safety sensors are suitable for monitoring the position of sliding, hinged and removable protective doors. They can only be used for safety duties to DIN VDE 0660-209 in combination with a safety guard monitor for protection up to safety level PL "e" per EN ISO 13849-1 or up to SILCL 3 per EN 62061.
The use of safety sensors is of particular advantage in cases where extremely dirty conditions can occur or high hygienic standards need to be maintained. This is provided by the simplicity of cleaning the units. A further advantage is the facility for concealed mounting behind non-magnetic materials.
Working surfaces and storage areas can be arranged without the need for dust-collecting edges or other functionally required cutouts or projections. The Ex safety sensors can also be applied in cases where a precise approach is not possible and greater tolerances are required.
Design and operating principle
These devices comprise a multi-channel safety sensor and an actuating magnet. The Ex safety sensors are actuated by a coded actuator without any mechanical contact. The devices can be selected with one NC and one NO contact or with two NC contacts. All described Ex safety sensors are supplied with a pre-wired cable.
The Ex safety sensors are protected to degree of protection IP 67.
The mounting site of Ex saftey sensors must be free of magnetic fields.
All Ex safety sensors shown in this chapter bear the CE mark according to the Machinery Directive 2006/42/EC and according to ATEX 2014/34/EU. The Ex safety sensors per equipment category 3G/D bear the CE mark without the number of the notified body and have received a EU declaration of manufacturer conformity.