Laser sensor with background suppression

Innovation from ipf with laser protection class 1 and simple range adjustment

ipf electronic complements its extensive portfolio of optical sensors with the PT190420one of the first laser sensors with a highly visible laser light spot in laser protection class 1, where the range can be set mechanically, i.e. using a screwdriver.

The PT190420 with a detection range of 50 to 300 mm is suitable for the inquiry of very small objects with simultaneous background suppression. In addition to laser protection class 1, the new product offers the decisive advantage of very simple start-up. Compared to conventional teach-in procedures, the sensing range of the PT190420 is set via an integrated mechanical adjustment unit and a signal LED. The sometimes time-consuming use of an operating manual and further instructions are therefore no longer necessary. The setting, on the other hand, is carried out in just three simple steps.

To achieve effective background suppression, the adjustment unit is first set to scale number 1 (left limit stop) using a suitable slotted screwdriver if there is no object in the detection range. If the background is within the detection range of the sensor, the adjustment unit is turned clockwise until the yellow LED lights up. If the background is outside the detection range, the adjustment unit must be adjusted to the full scale value 10. The object to be detected is then brought into the sensor's beam path (LED lights up) and the adjustment unit is turned counterclockwise until the LED goes out. Finally, the adjustment unit is set between the previously determined positions (without and with object), which determines the optimum switching point of the PT190420 is set. Done.

The PT190420 with a degree of protection of IP67 has a very high switching frequency of ≤2500Hz and is therefore predestined for use in high-speed processes. Another special feature: the laser sensor's 270° rotatable connector plug enables very flexible mounting in a wide variety of installation situations.