The Garantta GCS-03NP-C label sensor is a practical industrial sensor specifically designed for detecting opaque self-adhesive labels. Its core feature is its ability to achieve precise positioning by detecting the minute thickness difference between the label and the backing paper, making it ideal for high-speed labeling and packaging automation applications.
Main Features of Label Sensor
1. Wide range adaptability: Supports adjustable detection distances from 5-300mm, adapting to production lines with different labeling heights; also compatible with label spacing from 0.1-100mm, providing stable adaptation for both high-speed continuous labeling and intermittent labeling scenarios
2. Excellent anti-interference performance: Built-in optical filtering and electromagnetic shielding design resists interference from ambient light (such as strong light and strobe lights), dust, and moisture; with an IP65 protection rating, it maintains stable operation even in humid/dusty conditions such as food packaging and daily chemical labeling
3. Fast Response and Low Latency: Response time ≤0.5ms, compatible with high-speed labeling production lines of 1200 bottles/minute, providing real-time feedback on label presence/absence and positional deviation signals, assisting in timely production line adjustments and reducing material waste
4. Extremely Simple Operation and Easy Maintenance: Equipped with a one-button calibration function, parameter settings can be completed without professional technicians; features built-in LED status indicators and fault alarm output
Application
Logistics: package sorting, label detection.
Packaging: can detect labels on packaging.
Automation: can automatic identification of labels on production lines.
Advantages
1. Targeted Design: Specifically optimized for detecting opaque self-adhesive labels made of paper, plastic, etc., it is highly sensitive to the height difference between the label and the release liner (backing paper), thus reliably identifying the presence and edges of the label.
2. High Response Speed: The GCS-03NP-C Label Sensor has a response time of 0.1ms, matching the production speed of modern high-speed labeling machines.
3. Easy Installation and Debugging: It features a compact structure and a "one-button self-learning" function, significantly simplifying on-site debugging and setup.
4. Typical application scenarios include: label positioning, counting, and label break detection in automated labeling machines, as well as control of labeling stations on packaging production lines.
Precaution Tips
●Do not use this product as a detection device to protect personal safety.
●Fix it and connect it to a 12~24VDC power supply
●The green and red indicator lights are on, indicating that the operation is normal.
●If the red indicator light is not on when detecting an object, continue to turn the potentiometer to the left until the indicator light turns on (red)
●Adjust the sensitivity potentiometer and turn it slowly. (Turn left and right to adjust the transmission power)
Operation Manual
Threshold self-learning: Press the+key and one key simultaneously for more than 1 second. When the red light goes out, release the key, and the red light will flash.
Pull the label back and forth for self-learning.
Switching between normally open/normally closed: Press the+key and one key simultaneously for more than 3 seconds, and the green indicator light will switch between normally open/normally closed
Label Sensor Switch completed, release the button
Fine-tuning threshold: Press the+key alone or one click to fine-tune the threshold
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Label sensor
| Model | GCS-03NP-C through-beam type |
| Standard test substance | non-transparent objects |
| Groove width | 3mm |
| Detection distance | 3mm |
| Light source | Infrared LED |
| Supply voltage | 12-24VDC |
| Current consumption | 40mAmax |
| Response frequency | 10kHz |
| Control output | NPN+PNP |
| Ambient illumination | Sunlight: 5,000lxmax.; incandescent lamp |
| Ambient temperature | During operation: -20~+70℃, during storage: -25~+75℃ (no freezing or condensation) |
| Ambient humidity | During operation: 35~85%RH, during storage: 35~85%RH (no condensation) |
| Insulation resistance | 20M2 MIN. (DC500V) |
| Withstand voltage | AC500V50/60Hz 1min |
| Vibration durability | 10~500Hz double amplitude 1.5mm in each direction of X, Y and Z for 2h |
| Impact\durability | 500m/s² 10 times in each direction of X, Y and Z |
| Protective structure | Aluminum alloy |









