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The slot sensors of the SR21 series, with 2 mm slot width, are characterised by a high 12 bit (4096 steps) resolution, a low 20 µs response time and a switching frequency reaching 25 kHz.

The setting of the switching threshold is carried-out automatically by simply pressing a push-button, or dynamically during label (or other reference) movement. The SR21-IR model with infrared emission is ideal for label or hole detection on continuous surfaces, while the SR21-RG model with double red or green emission suits colour print register mark detection on transparent films for automatic packaging.

• 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

If you are looking for Datasensor Slot Sensors, please call us at (800) 894-0412 or Email us at info@ctiautomation.net we will do our best to help you find the Infra SR21 Series Sensors that you are looking for at the most competitive prices possible. If you are searching for Datalogic SR22 Series Sensor technical information (data-sheets) please use the datasheets or product selection guide page links.

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 µs 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.

• Fast switching frequency up to 10 kHz
• Infrared LED light emission
• Trimmer for sensibility adjustment
• 4 wire antivalent NPN and PNP outputs
• Compact metal housing with glass lenses

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.

• Infrared LED emission
• Sensitivity trimmer adjustment
• Elevated switching frequency
• Metal housing with wide slot

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.

Whether we have slot photoelectric sensors of the SR21 series in stock in Boise Idaho or need to ship direct from Infra Datalogic Italy to any USA cities; CTi Automation can get SR22 series of 2mm slot sensors to you fast and save you some money. Our industrial factory automation supplies distributors warehouse stocks SRF series photoelectric slot sensor products enabling us to further assist you in finding the correct SR21 series slot sensors in the USA, Canada, or Mexico. It will be very helpful if you have the SR22 photoelectric slot sensor part numbers ready, then our sales representatives can provide you with a pricing and availability quote for SRF series slot sensors that you are looking for in seconds. If you do not have the part numbers for SR21 series sensors, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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