XKC-Y26A 5-12V DC Thin-Tube Liquid Level Sensor – Non-Contact, NPN Output
![XKC-Y26A NPN Sensor]()
![Thin Tube Level Detector]()
![5-12V Liquid Sensor]()
![XKC-Y26A NPN Sensor]()
![Thin Tube Level Detector]()
![5-12V Liquid Sensor]()
This model operates from a DC 5V to 12V power supply and provides an NPN transistor output interface. It is suitable for water pipes, liquid dispensing systems, automatic filling equipment, water purification systems, home appliances, industrial automation, PLC systems and liquid level monitoring applications.
The internal signal-processing circuit detects this capacitance change and converts it into an electrical signal. When the capacitance variation exceeds the preset threshold, the sensor determines that liquid has reached the sensing point and switches the NPN output.
The connected input device should be compatible with an NPN sinking-type output.
Always verify the relay operating voltage and current before connecting the relay directly to the sensor output.
-17%
XKC-Y26A 5-12V DC Thin-Tube Liquid Level Sensor – Non-Contact, NPN Output
Available:In Stock
- Product SKU: KG1389
₹ 699
₹ 848
Need Volume Discounts? Deals are specially designed for you. Click here
Need Customization? Provide us more details Click here
🏠
Warehouse Details:
Specification
Description
XKC-Y26A 5-12V DC Thin-Tube Liquid Level Sensor – Non-Contact, NPN Output
The XKC-Y26A-NPN 5-12V is a thin-tube non-contact capacitive liquid level sensor specially designed for detecting liquid inside small-diameter non-metallic pipes. The sensor is mounted externally around the pipe using its integrated spring-clip mechanism and detects liquid through the pipe wall without requiring direct contact with the liquid.This model operates from a DC 5V to 12V power supply and provides an NPN transistor output interface. It is suitable for water pipes, liquid dispensing systems, automatic filling equipment, water purification systems, home appliances, industrial automation, PLC systems and liquid level monitoring applications.
Features
- Non-contact liquid level detection for thin non-metallic pipes
- Suitable for pipes with 5mm to 10mm outer diameter
- Maximum applicable pipe outer diameter approximately 11mm
- No direct contact between sensor and liquid
- DC 5V to 12V operating voltage
- NPN transistor output interface
- Normally Open / Normally Closed output selection
- Low current consumption of ≤ 5mA
- Maximum output current up to 100mA
- 500ms response time
- Liquid level accuracy of ±1.5mm
- Adjustable sensing sensitivity
- Integrated spring-clip pipe mounting design
- Easy external installation without cutting the pipe
- Suitable for cold, hot and boiling liquid detection
- High sensitivity and stable sensing performance
- Strong anti-interference capability
- Pure electronic non-mechanical sensing structure
- PC V0 fire-retardant housing material
- IP67 waterproof protection
- CE certified
- RoHS 2.0 compliant
Working Principle
The XKC-Y26A-NPN operates using the capacitive sensing principle. When no liquid is present near the sensing section, the sensor maintains a certain static capacitance. When liquid inside the pipe reaches the sensing position, the liquid introduces additional parasitic capacitance.The internal signal-processing circuit detects this capacitance change and converts it into an electrical signal. When the capacitance variation exceeds the preset threshold, the sensor determines that liquid has reached the sensing point and switches the NPN output.
Technical Details
- Item Type: Thin-Tube Non-Contact Liquid Level Sensor
- Series: XKC-Y26A
- Model: XKC-Y26A-NPN
- Operating Principle: Capacitive sensing
- Supply Voltage: DC 5V to 12V
- Output Type: NPN Output Interface
- Output Mode: Switch Quantity, Low Level Effective
- High-Level Output Voltage: Vin
- Low-Level Output Voltage: 0V
- Current Consumption: ≤ 5mA
- Maximum Output Current: ≤ 100mA
- Response Time: 500ms
- Operating Temperature: -20°C to 105°C
- Applicable Pipe Outer Diameter: 5mm to 10mm
- Maximum Pipe Outer Diameter: Approx. 11mm
- Liquid Level Accuracy: ±1.5mm
- Operating Humidity: 5% to 100%
- Housing Material: PC V0 Fire-Retardant Material
- Waterproof Rating: IP67
- Safety Certification: CE
- Environmental Certification: RoHS 2.0
Mechanical Drawing & Dimensions
Mechanical Dimensions
- Sensor Body Length: Approx. 34.4mm
- Sensor Body Width: Approx. 20mm
- Sensor Body Height: Approx. 13.6mm
- Overall Height Including Clip: Approx. 24.9mm
- Cable Length: Approx. 500mm
- Integrated Spring-Clip Pipe Holder
- Built-In Sensitivity Adjustment Control
- Built-In Indicator Light
Installation Method
Installation Procedure
- Carefully pull open the spring clips of the sensor
- Place the water or liquid pipe between the two spring clips
- Release the spring clips so that the sensor securely grips the pipe
- Ensure that the sensing section remains in close contact with the pipe surface
- Position the sensor at the required liquid-level detection point
- Suitable for pipe outer diameters from 5mm to 10mm
- Maximum pipe outer diameter should not exceed approximately 11mm
- Do not open the spring clip beyond approximately 60°
After Installation
Sensitivity Adjustment
- Use a small screwdriver to adjust the sensitivity control
- Rotate counterclockwise to increase sensing sensitivity
- Rotate clockwise to decrease sensing sensitivity
- Adjust sensitivity if the liquid is not detected reliably
- Perform final sensitivity adjustment after installing the sensor on the actual pipe
Pipe Diameter Requirement
- Recommended Pipe Outer Diameter: 5mm to 10mm
- Maximum Pipe Outer Diameter: Approx. 11mm
- Sensor is specially designed for thin non-metallic pipelines
- Ensure the sensing clip fits tightly around the pipe
- Ensure proper contact between the sensing section and pipe surface
- Avoid installing the sensor directly on metallic pipes
NPN Wiring Diagram
Wire Connection
- Brown Wire – VCC: Connect to positive DC 5V to 12V power supply
- Blue Wire – GND: Connect to power supply negative / 0V
- Yellow Wire – OUT: NPN signal output
- Black Wire – MODE: Normally Open / Normally Closed output selection
Normally Open / Normally Closed Output Selection
- Black MODE wire left disconnected: Normally Open (NO) output mode
- When liquid is detected in Normally Open mode, the NPN transistor turns ON and the output becomes active
- When no liquid is detected in Normally Open mode, the NPN transistor remains OFF
- Black MODE wire connected to GND / 0V: Normally Closed (NC) output mode
- When liquid is detected in Normally Closed mode, the NPN transistor turns OFF
- When no liquid is detected in Normally Closed mode, the NPN transistor turns ON
Connection to Controller / MCU / PLC
The yellow OUT wire provides the NPN signal output and can be connected to a compatible controller, microcontroller, PLC input or other automation control circuit.The connected input device should be compatible with an NPN sinking-type output.
Relay Connection
The NPN output can be used to control a suitable small electric relay, provided that the relay coil current does not exceed the sensor's maximum output-current specification of 100mA.Always verify the relay operating voltage and current before connecting the relay directly to the sensor output.
Environmental & Mechanical Specifications
- Operating Temperature Range: -20°C to 105°C
- Operating Humidity Range: 5% to 100%
- Liquid Level Accuracy: ±1.5mm
- Applicable Pipe Outer Diameter: 5mm to 10mm
- Maximum Pipe Outer Diameter: Approx. 11mm
- Housing Material: PC V0 Fire-Retardant Material
- Waterproof Performance: IP67
- Maximum Output Current: ≤ 100mA
- Response Time: 500ms
- Safety Certification: CE
- Environmental Certification: RoHS 2.0
Installation & Usage Notes
- Use the sensor with non-metallic pipes
- Make sure the sensing section fits securely against the pipe
- Do not force the spring clips beyond approximately 60°
- Keep the sensor clean and free from debris around the sensing area
- Keep metal objects away from the sensing area whenever possible
- Avoid strong impacts, collisions or mechanical damage
- Avoid installing the sensor close to excessive heat sources
- For outdoor installation, protect the sensor from prolonged direct sunlight and direct rain
- Adjust the sensitivity if reliable liquid detection is not achieved after installation
Applications
- Thin water pipes
- Small-diameter liquid pipelines
- Water dispensers
- Drinking water equipment
- Water purification systems
- Automatic filling machines
- Liquid dispensing systems
- Liquid level alarm systems
- Laboratory equipment
- Home appliances
- Industrial liquid level monitoring
- Automatic liquid level control systems
- PLC automation systems
- Microcontroller-based projects
- IoT liquid monitoring applications
- Non-metallic pipeline liquid detection
Troubleshooting
Package Includes
- 1 × XKC-Y26A 5-12V DC Thin-Tube Liquid Level Sensor – Non-Contact, NPN Output
Related items
₹ 38.00
₹ 49.00
₹ 139.00
₹ 149.00
₹ 159.00
₹ 249.00
