Print Mark Sensor - 90x65x35 Mm, 12v/24v Dc Supply | High-speed 2000 Marks/min, Solid State, Immune To External Light

This Print Mark Sensor is designed for sensing Registration Mark. It continuously scans the presence of registration mark on the moving packaging film. The electronic circuitry is capable of detecting any colours on any background colour. The scanning rate is as high as 2000 packages / minute making it suitable for any type of packaging machine including candy packing machine.

Working Principle :
A modulated, Green LED is focused on the moving packaging film. A highly sensitive Photo cell continuously accepts the reflections from the film (paper / plastic) and sends the signals to the electronic scanning circuit. On scanning the presence of Registration Mark; it gives transistorised output.

A logic controller or digital controllers is also provided which accepts signals from scanning head & other Proximity Sensors to keep correct pouch / bag length by driving correction motor (110V AC, 4 wire) or (230VAC, 3 wire).

Salient Features of Print Mark Sensors :
* Fully solid state thus making it a totally reliable.
* Immune to external light source, electrical interference.
* A selector switch provided to choose Dark switching or light switching.
* High speed switching i.e. 2000 marks / min.
* Detection of different contrast sheds by means of sensitivity pot provision.

Technical Specifications :
Supply Voltage : 12 V DC / 24 V DC
Scanning Distance : 3 to 8 mm between the scanning head and the film
Output : High, Low, Open collector
Dimensions (LxWxH) : 90 x 65 x 35 mm.