High 25 kHz switching frequency
IR or red/green light models
Detection of semi-transparent labels
Detection of register marks on transparents
4 wire antivalent NPN and PNP output

The new SR22 series of 2 mm slot sensors has been developed as the most costeffective solution for label detection on reels. The infrared LED emission allows to detect over even darker or thicker supports, while the low response time of only 100 ìs allows to reach a 10 kHz switching frequency in the faster labelling processes. The label detection sensitivity is trimmer adjustable. The compact metal housing with 40 mm slot depth fits even the most limited spaces. The M8 4-pole connector offers simple and fast connection. The power supply is 24 Vdc and versions with light or dark mode, both with double NPN and PNP outputs, are available.
They are a replacement for the SR2 series.

The SR31 series is composed of slot sensors with infrared LED emission, distinguished by an elevated 10 kHz switching frequency and by a sturdy and compact metal housing.
The detection sensitivity is adjusted by means of a trimmer. The dark/light operating mode is configured according to the connection. The series includes M8 connector versions with NPN output, or PNP output; cable versions present both NPN/PNP outputs.
The SR31 sensors have a 30 mm wide and 42 mm deep slot. These sensors are suitable for detecting opaque labels on a transparent support, to control material presence and continuity, to detect synchronism pulses on toothed or holed wheels, or as on-off edge guide.

The slot sensors of the SRF series are photoelectric devices characterised by an excellent precision thanks to the red LED emission which offers resolutions reaching 0.3 mm or class II LASER emission for resolutions down to 0.03 mm. High precision and reading repeatability are obtained thanks to the Laser emission combined with high switching frequency.
The particular 'U' shape with opposite receiver and emitter units, together with the high resistance of the metal housing, make monitoring extremely simple and rapid, guaranteeing reliable functioning as well as shock and vibration resistance. The SRF series presents versions with 30, 50, 80 and 120 mm slots allowing the best adaptation to the many different applications, including opaque label detection on transparent supports, monitoring of the correct material position and dimension or object counting on conveyor belts. Sensitivity adjustment is easily accomplished thanks to the trimmer positioned on the back side of the sensor. The range offers versions with PNP or NPN output. The light/dark mode can be selected in all models.