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Manufacturer: Datalogic
SR21-IR
The slot photoelectric sensors of the SR21 series, with 2mm slot width, are characterized by a high 12 bit (4096 steps) resolution, a low 20µs response time and a switching frequency reaching 25kHz.
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 color print register mark detection on transparent films for automatic packaging.
Teach-in setting: easy and fast setting procedure
Dynamic setting: possibility to set the sensor while the labels film is moving
12 bit resolution: high detection reliability for a precise reading
25KHz switching frequency: high detection repeatability
Red/Green emission model: possibility to perform contrast application
This product series has been developed to satisfy to requirements of the following reference applications: Packaging lines, Labeling machines, Paper and Printing machines
Power supply: 10 … 30 Vdc, reverse polarity protection
Consumption: 55 mA max.
Light emission: infrared LED 880 nm (IR vers.)
red 635 nm/green LED 535 nm (RG vers.)
Resolution: 0.5 mm
Slot width: 2 mm
Slot depth: 50 mm
Detection point depth: 7.5 mm
Setting: AUTO SET push-button
Indicators: yellow OUTPUT LED
green/red bicolour READY/ERROR LED
Output type: NPN and PNP, Rpull-down/up 10 kW
Saturation voltage: 2 V max.
Output current: 100 mA max., short-circuit protection
Response time: 20 µs max.
Switching frequency: 25 kHz
Operating mode: dark/light configurable
Connection: M8 4-pole connector
Electrical protection: class 1
Mechanical protection: IP65
Housing material: ZAMA
Lens material: glass
Weight: 120 g max.
Operating temperature: -20 … +60°C
Storage temperature: -20 … +70°C
Reference standard: EN 60947-5-2
Shipping Weight : 1 Kg
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