Sensors for contrast detection

Contrast sensors detect marks the colour of which is in contrast to the colour of the background. The decisive factor for operational reliability is the difference in contrast between mark and background and the constant distance between sensor and colour mark. The material of the background is of no importance.
Type rectangular	Material plastics	Range up to 22 mm	Connection connector

Sensors for glass and film detection

For retro-reflective sensors for glass and film detection the transmitter and receiver are incorporated into one housing. The transmitter emits a light beam which is reflected to the receiver by a prismatic reflector. In contrast to the normal retro-reflective sensor these retro-reflective sensors have a smaller switching hysteresis. Even low damping by transparent materials can thus trigger switching operations.
Type rectangular	Material plastics	Range up to 1,5 m	Connection cable with connector connector	System function check output polarisation filter

Sensors for distance measurement

Sensors for distance measurement operate according to the time-of-flight principle. A light beam is emitted and reflected by an object. The time the light beam takes for the distance from the unit to the object and back from the object to the unit is measured. Since the speed of light is constant, the distance can be calculated on the basis of the time of flight.
Type rectangular	Material metal	Range up to 10 m up to 75 m	Connection connector	System visible laser light

Sensors for non-contact level detection

Sensors for non-contact level detection detect bulk material and opaque liquids without contact on the basis of the time of flight measurement of a laser beam.
Type rectangular	Material metal	Range up to 10 m	Connection connector	System visible laser light