The new MLD 300 (type 2 PLd) and MLD 500 (type 4 PLe) series Multiple Light Beam Safety curtains from Leuze electronic are equipped with various features and capabilities, and meet various function classes. For example, start/restart interlock and contactor monitoring functions are available and various muting modes can be selected. External muting devices are not required, which simplifies installation and reduces costs.
Higher MLD function classes feature an integrated muting indicator and seven-segment display to monitor sensor behaviour.
The series is suitable for perimeter guarding using deflecting mirror posts. Ranges up to 70 metres and operating temperatures down to -30 degrees C are possible.
Alignment is noticeably simplified in those devices within the range which feature integrated lasers at the top and bottom of the column. A reflective area on the cap of the receiver makes the laser spot highly visible, even over long distances, considerably reducing set-up times. Installation is also made easier by a new swivel mount which enables swift alignment with reliable mounting.