Key Features of the VXT/CM-20PA

• Advanced diffuse reflection detection method
• Dual switch mode: Light ON (L.ON) / Dark ON (D.ON)
• Reliable PNP open collector output
• Stable performance in high-speed operations
• Easy installation with cable connection

VXT/CM-20PA Photoelectric Sensor

The VXT/CM-20PA Photoelectric Sensor is a high-performance solution designed for precise color mark detection. It uses a diffuse reflection detection method, allowing accurate sensing without the need for external reflectors.

This sensor supports Light ON (L.ON) and Dark ON (D.ON) switching modes, making it flexible for different industrial requirements. Its PNP open collector output ensures compatibility with various control systems.

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Applications

Our color mark sensors are widely used in:

• Packaging machines for label detection
• Printing machines for registration mark alignment
• Conveyor systems for product tracking
• Textile and paper industries
• Automated production lines

Why We Are the Best Supplier in India

As a trusted industrial sensor supplier in India, we provide high-quality products that meet industrial standards. Our commitment to quality, competitive pricing, and customer satisfaction makes us a preferred choice for automation solutions.

We supply across all major cities in India including Delhi NCR, Noida, Mumbai, Pune, Chennai, Bangalore, Hyderabad, and Ahmedabad.

 Conclusion

If you are searching for a reliable Color Mark Sensor Manufacturer & Supplier in India, our VXT/CM-20PA Photoelectric Sensor is the perfect choice for high-speed and accurate detection in industrial applications.

Contact us today for the best price and expert support.

Key Features of the VXT/CM-20PA

The VXT/CM-20PA stands out in its category thanks to a combination of performance-oriented features that address real-world industrial demands:

• Triple-Color RGB LED: The sensor uses a composite LED with three emission wavelengths — Red at 625 nm, Blue at 470 nm, and Green at 525 nm. This tri-color approach gives it significantly better color discrimination capability compared to single-color alternatives, allowing it to detect a broader range of mark and background combinations.
• Dual Switch Mode: The sensor supports both L.ON (light entry action) and D.ON (shading action) modes, which can be switched on-site. This means the sensor adapts to virtually any mark-to-background configuration without requiring a different hardware model.
• Ultra-Fast Response Time: In color mark mode, the sensor responds in just 0.5 ms — fast enough for high-speed packaging and printing lines running several hundred meters per minute. In standard color mode, the response time is 2 ms.
• 4-Digit Digital Display: A built-in digital tube display lets technicians monitor detection thresholds and sensitivity values in real time. This eliminates the need for external calibration tools and speeds up machine commissioning.
• IP67 Protection: The sensor is rated IP67 — fully dustproof and protected against temporary water immersion. This makes it suitable for food processing, beverage filling, and other washdown-compatible manufacturing environments.
• PNP Open-Collector Output: With a PNP sourcing output and a load current capacity of up to 50 mA, the VXT/CM-20PA interfaces directly with a wide range of industrial PLCs including Siemens, Mitsubishi, Delta, Allen-Bradley, and Omron.
• Built-In Circuit Protection: The sensor includes reverse polarity protection and short-circuit protection, reducing the risk of damage during installation or wiring errors.

The VXT/CM-20PA Color Mark Photoelectric Sensor is widely supplied across major industrial hubs in India, including Delhi NCR, Mumbai, Pune, Chennai, Bangalore, Hyderabad, Ahmedabad, Kolkata, and Coimbatore. We also serve growing industrial regions such as Jaipur, Surat, Lucknow, Indore, Vadodara, Noida, Gurugram, Faridabad, Rajkot, Nagpur, Bhopal, Chandigarh, Ludhiana, Bhubaneswar, Visakhapatnam, Trivandrum, Madurai, Nashik, Vapi, Hosur, Aurangabad, and Patna.

How the VXT/CM-20PA Works

The VXT/CM-20PA operates on the diffuse reflection detection principle. The sensor emits a composite beam of red, blue, and green light toward the target surface. When the reflected light intensity changes — caused by a color mark passing through the sensing spot — the internal comparator circuit triggers a change in the output signal.

Color Mark Mode vs. Color Mode

In color mark mode, the sensor is optimized specifically for binary mark detection — for example, detecting a black printed mark on white packaging film. The response time in this mode is 0.5 ms, making it one of the fastest in its class for mark registration tasks.

In color mode, the sensor performs broader color-difference detection, capable of distinguishing between two or more surface colors. The response time here is 2 ms, still more than adequate for most industrial conveyor applications.

L.ON and D.ON Switching

The output polarity is fully configurable in the field. L.ON mode activates the output when reflected light is detected — ideal when the registration mark is lighter than the surrounding background. D.ON mode activates the output when reflected light is reduced — used when the mark is darker than the background, such as a black mark on white film. This adaptability eliminates the need to stock multiple sensor variants for different mark types.

PNP Wiring (3-Core Cable)

The sensor connects via a 3-core, 2-meter cable. Brown wire connects to the positive supply (+V), blue wire to 0V (ground), and the black wire carries the PNP output signal. Always refer to the official connection diagram included in the VoxinTech datasheet before wiring.

Industrial Applications

The VXT/CM-20PA is used across a wide range of industries wherever accurate, high-speed color mark or registration detection is required.

Flexible Packaging Lines: The sensor detects printed registration marks on film, foil, or laminate to synchronize the position of cutting blades, sealing jaws, or printing heads. This ensures every pack is cut and sealed at exactly the right point.

Label Dispensing and Application: In automatic label applicators, the sensor identifies the gap or color mark between labels on a continuous liner, triggering the label to be dispensed at the correct moment.

Pharmaceutical Blister Packaging: The sensor verifies correct foil positioning by detecting alignment marks before sealing, preventing misaligned blisters from reaching patients.

Food and Beverage Packaging: Its IP67 rating makes it safe for use in food production environments where moisture, condensation, or periodic washdowns are routine.

Printing and Converting Machines: Print registration control uses the sensor to detect reference marks between print stations, ensuring consistent color registration across multi-color print runs.

Textile and Garment Manufacturing: The sensor detects color marks on fabric rolls for automatic cutting, splicing, and pattern alignment operations.

Electronics Assembly Lines: Color-coded trays, substrates, or component carriers are identified using the sensor to verify correct part placement or sequence on conveyor lines.

Frequently Asked Questions

What is the detection distance of the VXT/CM-20PA? The sensor detects marks at a nominal distance of 10 mm with a tolerance of ±3 mm, giving a working range of 7 to 13 mm from the sensor face to the target surface.

Can the VXT/CM-20PA detect black marks on white film? Yes. This is one of its most common applications. Set the sensor to D.ON mode so the output activates when the dark mark reduces reflected light below the threshold.

Is the VXT/CM-20PA compatible with NPN PLCs? The sensor outputs a PNP (sourcing) signal. Most modern PLCs support PNP inputs natively. If your control system requires NPN (sinking) input only, a signal converter or relay interface will be needed.

What does IP67 mean in practice? IP67 means the sensor is completely sealed against dust (IP6X) and can withstand temporary immersion in water up to 1 meter deep for up to 30 minutes (IPX7). It is safe for humid, wet, and washdown environments.

Can the VXT/CM-20PA handle high-speed conveyor lines? Yes. With a switching frequency of up to 6 kHz and a response time of 0.5 ms in color mark mode, the sensor reliably tracks marks on fast-moving packaging and printing lines.

ULS24B360M84 Ultrasonic Clear Label Sensor — Manufacturer & Supplier in India

The ULS-24B-360-M84 is Voxintech’s flagship ultrasonic clear label sensor — engineered to detect transparent, clear, opaque, plastic, metallic, and BOPP labels on any backing material. As a direct manufacturer and supplier in India, Voxintech offers this sensor as a technically compatible, cost-effective alternative to market-leading brands including Leuze, Datalogic, Sick, Telemecanique (Schneider), and Omron — at competitive pricing with full technical support and same-day enquiry response.

Technical Specifications

📄 Download Full Datasheet — ULS24B360M84 (PDF)

Voxintech ULS-24B-360-M84 — Compatible Alternative to Leading Brands

Many customers in India currently use ultrasonic clear label sensors from Leuze, Datalogic, Sick, Telemecanique, or Omron on their labelling machines. When these sensors require replacement, repair, or when customers are sourcing for new machines, the Voxintech ULS24B360M84 is a fully compatible and significantly more cost-effective alternative — manufactured to European standards, available directly in India, with no import delays.

Below is a complete cross-reference guide for each major brand and their specific models that the ULS24B360M84 can replace.

Brand-by-Brand Summary — Voxintech ULS24B360M84 Compatibility

Leuze

Why Switch to Voxintech from Leuze, Datalogic, or Sick?

Key Features & Applications

What the ULS24B360M84 Detects

• Transparent & clear labels on clear backing tape — the primary use case where all optical sensors fail
• Opaque paper and coloured labels — standard label detection applications
• Plastic & BOPP film labels — common in food, cosmetic, and FMCG packaging
• Metallic & foil labels — used in premium product labelling
• Partially transparent labels — frosted, tinted, or semi-opaque label materials

Industries & Applications

• Pharmaceutical labelling machines — clear labels on vials, bottles, ampoules, blister packs
• FMCG & cosmetics — transparent label detection on shampoo, lotion, cream packaging
• Food & beverage packaging — clear labels on water bottles, juice, sauce containers
• Bottle labelling plants — high-speed label gap detection across all label types
• Industrial automation — printing-and-apply, label dispensing systems
• Medical diagnostics — clear label detection on sample tubes and reagent vials

Frequently Asked Questions

Q: Is the Voxintech ULS24B360M84 a direct replacement for the Leuze GSU14E?

A: Yes. The ULS24B360M84 uses the same ultrasonic fork detection principle as the Leuze GSU14E, with NPN/PNP output, M12 connector, IP65 protection, and 2mm minimum gap detection — the core functional parameters are equivalent. Contact us for a free technical compatibility assessment for your specific machine.

Q: Can the ULS24B360M84 replace a Datalogic SRX3 on my labelling machine?

A: In most applications, yes. The SRX3 and ULS24B360M84 both use ultrasonic technology, detect 2mm minimum label gaps, support NPN/PNP, and have comparable detection frequencies. The ULS24B360M84 is available at a significantly lower price with direct India supply. Please share your machine model for a confirmation from our team.

Q: My machine uses a Telemecanique XUVU06M3KSNM8. Can I use the ULS24B360M84 instead?

A: Yes. The XUVU06M3KSNM8 is an ultrasonic fork label sensor with M8 4-pin connector and PNP/NPN output. The ULS24B360M84 uses the same detection principle with M12 connector. For machines with M8 wiring, a standard M8-to-M12 adapter is available. Contact us to confirm compatibility with your specific wiring setup.

Q: Why is the Voxintech sensor cheaper than Leuze or Sick sensors in India?

A: Leuze, Sick, and Datalogic sensors are manufactured in Europe and imported to India through multi-tier distribution — each step adds import duty, freight, insurance, and distributor margin. Voxintech manufactures sensors in France to the same European standards and supplies directly to Indian customers, eliminating all intermediary costs. The quality and certifications are identical — the cost difference is purely distribution.

Q: Does Voxintech provide a technical datasheet for comparison with Leuze or Datalogic specs?

A: Yes. Download the full ULS24B360M84 datasheet from the link below and compare specifications directly with any Leuze, Datalogic, or Sick model. Contact our engineering team for a detailed spec comparison document.

📄 Download ULS24B360M84 Full Technical Datasheet (PDF)

Availability Across India

Voxintech supplies the ULS-24B-360-M84 directly to customers across all Indian states. Also available through IndustryPapa with online ordering, pan-India delivery, and GST-compliant invoicing.

Related: Label Sensors  ·  Ultrasonic Sensors  ·  Photoelectric Sensors  ·  IndustryPapa.com

Disclaimer: Brand names Leuze, Datalogic, Sick, Telemecanique, Schneider, Omron, Tri-Tronics, and Pepperl+Fuchs are trademarks of their respective owners. Model numbers are listed for cross-reference and compatibility guidance only. Voxintech has no affiliation with these companies. Always verify electrical and mechanical compatibility before replacing any sensor on production equipment.

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