SKU: SENS-1342
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Pro-Range XKC-Y25NPN Non-Contact Liquid Level Sensor - NPN Output, DC 5-12V

₹369.00 (Inclusive of all taxes)
Out of Stock

The Pro-Range XKC-Y25NPN is a non-contact liquid level sensor designed for detecting liquid height through the walls of non-metallic containers. Operating on a 5-12V DC supply, it provides a standard NPN open-collector output for easy integration with PLCs, microcontrollers (Arduino, Raspberry Pi), and industrial control systems.

Features

  • True non-contact detection through container walls up to 10mm thick.
  • NPN open-collector output for direct interface with PLCs and digital inputs.
  • High accuracy detection within ±1.5mm of liquid level.
  • IP67 waterproof rating for reliable operation in damp or washdown environments.
  • Wide 5-12V DC operating voltage range for flexible power supply options.

Out of stock

Description

The Pro-Range XKC-Y25NPN sensor utilizes advanced capacitive sensing and signal processing technology to detect liquid presence without physical contact with the medium. This principle allows it to function through the walls of sealed, non-metallic containers, making it ideal for monitoring corrosive, toxic, or sterile liquids in closed systems. The sensor’s high-speed processing chip compensates for variations in container wall thickness and material.

Installation involves mounting the sensor probe externally on the container wall at the desired detection point. The NPN output provides a clean digital signal that switches based on liquid presence, enabling simple high/low level control. Its robust IP67-rated housing ensures reliable performance in industrial settings, including those with exposure to dust and temporary water immersion.

Key Features

  • Non-Contact Capacitive Sensing: Detects liquid level through container walls without penetration, preventing contamination and corrosion.
  • NPN Open-Collector Output: Standard industrial interface for easy connection to PLCs, relays, and microcontroller digital inputs.
  • Adjustable Sensitivity: Allows fine-tuning for optimal detection across different container materials and wall thicknesses.
  • Broad Liquid Compatibility: Suitable for water, oils, chemicals, acids, alkalis, and other non-conductive/conductive liquids.
  • Sealed IP67 Enclosure: Provides protection against dust ingress and temporary immersion in water up to 1 meter for 30 minutes.
  • Wide Operating Voltage: Supports 5V to 12V DC, compatible with common industrial and embedded power supplies.
  • Simple External Mounting: Installation requires no container modification, drilling, or process shutdown.
  • High-Value Build: Durable construction optimized for long-term reliability in demanding monitoring applications.

Applications

  • Chemical processing tank level monitoring for acids, solvents, and corrosive liquids.
  • Water treatment system level control in PVC or polyethylene storage tanks.
  • Beverage and food industry liquid level detection in hygienic, sealed containers.
  • Medical and laboratory equipment for monitoring sterile fluids in non-metallic reservoirs.
  • HVAC system condensate level detection in plastic collection pans.

Technical Specifications

Model NumberXKC-Y25NPN
Detection PrincipleCapacitive (Non-Contact)
Output SignalNPN Open-Collector
Operating VoltageDC 5 - 12V
Detection Accuracy±1.5 mm
Max Container Wall Thickness10 mm (Non-Metallic)
Ingress ProtectionIP67
Liquid CompatibilityWater, Oils, Chemicals, Acids, Alkalis
Container MaterialPlastic, Glass, Ceramic, Fiberglass (Non-Metallic)
Response Time< 100 ms
Operating Temperature-20°C to +70°C

Frequently Asked Questions

What is the maximum wall thickness this sensor can detect through?

The Pro-Range Y25NPN sensor is designed to detect liquid levels through non-metallic container walls up to 10mm thick, such as plastic, glass, or fiberglass. Performance may vary based on the material's dielectric constant; the built-in sensitivity adjustment can help optimize detection for specific wall thicknesses and materials.

How do I wire the NPN output to an Arduino or PLC?

Connect the sensor's brown wire to your DC power supply positive (5-12V), the blue wire to ground, and the black wire to the NPN output. The black output wire acts as an open-collector switch to ground. To interface with a microcontroller digital input, connect a pull-up resistor (e.g., 10kΩ) between the input pin and Vcc, and connect the black wire between the input pin and ground.

Can this sensor detect liquids inside a metal container?

No, this sensor uses a capacitive sensing principle that requires a non-metallic barrier between the probe and the liquid. Metal containers will shield the electric field, preventing reliable detection. It is specifically designed for use with plastic, glass, ceramic, or composite non-metallic tanks and vessels.

What is the difference between the NPN and PNP output models?

The NPN model (Y25NPN) provides a sinking output, where the signal wire switches to ground when liquid is detected. The PNP model provides a sourcing output, switching to the supply voltage. Choose based on your PLC or controller input type: NPN is common for Asian and European systems, while PNP is often used in North America.

Package Includes

  • 1 x Pro-Range XKC-Y25NPN Non-Contact Liquid Level Sensor

Additional Information

Weight 0.025 kg
Dimensions 14 × 10 × 3 cm