Wenglor P1KS003 Through Beam Sensor

The through-beam sensor works with a fine laser beam as well as a transmitter and a receiver.

The through-beam sensor works with a fine laser beam as well as a transmitter and a receiver. The collimated laser beam of laser class 1 detects objects, for instance, when conducting installation, feed or presence controls, starting at a size of just 0,6 millimeters. The transmitter can be deactivated using test input in order to test the functionality of the through-beam sensor. The IO-Link interface can be used to configure the sensor (PNP/NPN, NC/NO, switching distance), as well as for reading out switching statuses and signal values.


  • Detect smallest parts until 0,6 mm
  • Very high switching frequency
  • Test input for high operational reliability
  • IO-Link 1.1


Counting of Cannulae for Syringes with Through-Beam Sensor

Before packaging cannulae for syringes in the pharmaceutical industry, it must be ensured that each packaging unit contains the correct number of objects. For this purpose, a through-beam sensor is installed on the cannulae feed rail, which, thanks to a collimated laser light beam, detects and counts parts of less than one millimeter in height and width. The light barrier detects the objects regardless of their shape, color or surface – even at high speeds. The small 1K format allows installation in tight feed or conveying systems. After counting, the cannulae are placed in the trays.

Through-Beam Sensors

Through-beam sensors detect and count small parts, detect the edges of objects and monitor passages in systems. The emitter and receiver are housed in separate housings according to the through-beam mode. The sensor switches as soon as an object interrupts the laser light, red light or infrared light.


Optical Data

Range 10,000 mm
Light Source Laser (red)
Wavelength 680 nm
Service Life (T = +25 °C) 100,000 h
Laser Class (EN 60825-1) 1
Light Spot Diameter see Table 1

Electrical Data

Sensor Type Emitter
Supply Voltage 10 … 30 V DC
Current Consumption (Ub = 24 V) < 15 mA
Temperature Drift (-10 °C < Tu < 40 °C) 10 % *
Temperature Range -40 … 60 °C
Reverse Polarity Protection yes
Test input yes
Protection Class III
FDA Accession Number 1710976-001

Mechanical Data

Housing Material Plastic
Degree of Protection IP67/IP68
Connection M8 × 1; 3-pin
Optic Cover PMMA

Safety-relevant Data

MTTFd (EN ISO 13849-1) 2,993.84 a

Adjustable parameters

Other parameters Emitted light

Table 1

Working Distance 1 m 6 m 10 m
Light Spot Diameter 2,5 mm 25 mm 40 mm


Datasheet : Wenglor P1KS003 Through Beam Sensor

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