SR21

953151080

SR21-RG

2 mm high-resolution fork sensors for labeling and packaging

  • 25 kHz high switching frequency
  • IR or red/green light models
  • Detection of labels (SR21-IR) or print register mark on transparent films (SR21-RG)
  • 4 wire NPN and PNP output



Technical features

Detection properties

Nominal sensing distance 2mm
minimum detectable object 0,5mm
Sensitivity adjustment Teach-in

Application

Function Principle Fork for label and color mark detection
Description Compact - fork 2x50 mm
Functions Fork for label and color mark detection

Outputs

Output type NPN/PNP L/D Selectable
Output Function L/D Selectable
Switching frequency 25kHz
Response time 0,02

Electrical data

Operating Voltage 10…30VDC
No-Load supply current ≤ 55mA
Load current ≤100mA
Output voltage drop ≤2V@Iload=100mA
LED indicators Yellow (status output), Green/Red (Read/Error)
Short-circuit protection YES
Reverse Polarity Protection Yes
Emission LED Red/green
Interference to external light according to EN 60947-5-2 : 2020
Impulsive Overvoltage Protection Yes
Insulation resistance >20 MΩ 500 Vdc, between electronics and housing
Contact resistance 500 Vac 1 min., between electronics and housing

Mechanical data

Dimensions 20x26x90
Housing Material Metal - Zamak
Connections M8 plug 4pin
Active Head Material PMMA
Storage temperature - 25°C…+70°C
Material
Depth slot detection 50mm

Test/Approvals

Approvals CE cULus
Shocks and vibrations 0.5 mm amplitude, 10 … 55 Hz frequency, for every axis (EN60068-2-6)

Generical Data

Dimensions 20x26x90
Operating Temperature - 20°C…+ 60°C
Mechanical Protection IP65