Holiday detector DTR540 / EMR-C

The receiver DTR540 is a linear photodiode array detector. In association with the EMR-C red LED emitter, it is able to detect the weld hole made in order to locate the linking weld between two strips. The receiver consists of a lens, a linear diode array and a processing unit enclosed in a cast aluminum case. The image of the viewed area is focused onto the diode array. The output of the receiver DTR540 switches when a hole is seen within the field of view with light emitter EMR-C in the background. DELTA offers two models of weld hole detector to satisfy different possibilities of weld detection: - DTS240/EMR-M: for standard application, hole deviation less than 340 mm and strip covering completely the emitter. - DTR540/EMR-C: for application with large variation in the hole position or narrow width and off -centered strip (replacing of previous DTR340), or detection of 2 holes at same time (replacing previous DTR522).