953151080 | SR21-RG | Red/Green LED High-Resolution Fork Sensor, PNP/NPN, M8 Connector
Overview
Datalogic SR21-RG, 953151080
Sr Fork Sensor, Label Sensor Red/Green Pnp/Npn - M8
The slot photoelectric sensors of the SR21 series, with 2mm slot width, are characterized by a high 12 bit (4096 steps) resolution, a low 20??s 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:- 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
- Packaging lines
- Labeling machines
- Paper and Printing machines
Technical Specifications
SKU: 953151080-datalogic
Product Type
Photoelectric Fork Sensor
Model
SR21-RG
Application
Label and color mark detection
Sensing Principle
Fork for label and color mark detection
Nominal Sensing Distance
2 mm
Minimum Detectable Object
0.5 mm
Slot Depth
50 mm
Sensitivity Adjustment
Teach-in
Output Type
NPN/PNP L/D Selectable
Switching Frequency
25 kHz
Response Time
0.02 ms
Operating Voltage
10-30 VDC
No-Load Supply Current
55mA
Load Current
100mA
Output Voltage Drop
2V @ 100mA
LED Indicators
Yellow (status output), Green/Red (Read/Error)
Emission
Red/Green LED
Short-Circuit Protection
Yes
Reverse Polarity Protection
Yes
Impulsive Overvoltage Protection
Yes
Interference to External Light
According to EN 60947-5-2 : 2020
Insulation Resistance
>20 MΩ @ 500 Vdc, between electronics and housing
Dielectric Strength
500 Vac for 1 min, between electronics and housing
Housing Material
Metal - Zamak
Active Head Material
PMMA
Connections
M8 plug 4-pin
Dimensions
20 x 26 x 90 mm
Operating Temperature
-20°C to +60°C
Storage Temperature
-25°C to +70°C
Mechanical Protection
IP65
Approvals
CE, cULus
Shocks and Vibrations
0.5 mm amplitude, 10-55 Hz frequency, for every axis (EN60068-2-6)
Technical Documents
Datalogic SR21 Fork Sensors Manual (PDF)- Datalogic SR21 Fork Sensors Brochure (PDF)
Datalogic SR21 Fork Sensors DWG (ZIP)- Datalogic Photoelectric Sensors Catalog (PDF)
- Datalogic Sensors Product Guide (PDF)
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