DATASENSING
Datalogic - SR21 - Slot sensor
The SR21 series is a photoelectric slot sensor with 2mm slot width, are characterised by a high 12 bit (4096 steps) resolution, a low 20µs response time and a switching frequency reaching
25 kHz.
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 colour 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 label is moving
• 25KHz switching frequency
• Red/Green emission model: possibility to perform contrast application
APPLICATIONS
• Packaging lines
• Labelling machines
• Paper and Printing machines
- 2mm slot gap
- High 25 kHz switching frequency
- Detection of semi-transparent labels
- IR or red/green light models
- PNP or NPN output
Selected variant
Technical data
| Approvals | CE, UL |
|---|---|
| Dimension (mm) | 20 x 90 x 26 |
| Electrical connection | M8 4-pole connector |
| Fork depth | 50 mm |
| Fork gap | 2 mm |
| Frequency | 25000 Hz |
| IP class | IP65 |
| LED indicator | Yes |
| Lens material | Glass |
| Light type | IR LED |
| Material of body | Zinc Alloy |
| Output | NPN, PNP |
|---|---|
| Output current max | 0,1 A |
| Photocell technology | Fork |
| Power consumption max | 0,55 A |
| Reaction time | 0,02 ms |
| Supply voltage | 10-30 V DC |
| Temperature operational max | 60 °C |
| Temperature operational min | -20 °C |
| Weight | 115 g |
Product description
The SR21 series is a photoelectric slot sensor with 2mm slot width, are characterised by a high 12 bit (4096 steps) resolution, a low 20µs response time and a switching frequency reaching
25 kHz.
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 colour 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 label is moving
• 25KHz switching frequency
• Red/Green emission model: possibility to perform contrast application
APPLICATIONS
• Packaging lines
• Labelling machines
• Paper and Printing machines
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