SR21


Image

The slot photoelectric sensors of the SR21 series, with 2mm slot width, are...

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.

 

Features & Benefits

  • 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

 

Applications

This product series has been developed to satisfy to requirements of the following reference applications:

  • Packaging lines
  • Labeling machines
  • Paper and Printing machines

 

Models 

Ordering Codes

Description

953151070 SR21-IR M8 NPN/PNP
953151080 SR21-RG M8 NPN/PNP