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Photoelectric Sensor, Slot, SR21 Series, 2 mm, NPN / PNP, 10 Vdc to 30Vdc


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Product Range
SR21 Series
Technical Datasheet:
SR21-IR   Datasheet
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Product Range Selector (SR21 Series)

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Product Overview

The SR21-IR is a microprocessor-based Slot Sensor with ZAMA housing, glass lens and M8 4-pole connector. The slot sensor of the SR21 series, with 2mm slot width, 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 movement. The SR21-IR model with infrared emission is ideal for label or hole detection on continuous surfaces.
  • 0.5mm Resolution
  • Auto set pushbutton setting
  • Yellow output LED indication
  • 20µs Maximum response time
  • IP67 Protection rating
  • -25 to 60°C Operating temperature range


Sensing & Instrumentation

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SR21 Series

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Technical Documents (2)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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