Digital Non Contact Capacitive Liquid Level Sensor for Pipeline

SKU: SUCH-CLS-1326NP-S

$99.51

● Non-contact capacitive level sensor suitable for non-metallic pipes ● Pipe outer diameter range Φ6-13mm and Φ13-26mm available ● Supports NPN + PNP output ● Supply voltage 12-24V DC

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Overview
Specs
Application
FAQ
Reviews

Overview

This non-contact capacitive liquid level sensor accurately detects liquid through non-metallic pipe walls, offering a fast response time and strong anti-interference performance. Featuring a compact and robust housing, it supports both NPN and PNP outputs, allowing flexible integration into various control circuits. With its reliable non-contact operation and hygienic design, it is well-suited for pump control, water tank monitoring, and other industrial applications involving liquid level management.

Feature

Non-contact capacitive sensing principle: The capacitive level sensor detects liquid by sensing capacitance variations through the pipe wall, enabling precise level detection without direct contact with the fluid and eliminating contamination risks.
NPN and PNP output compatibility: Designed for flexible system integration, the capacitive water level sensor supports both NPN and PNP output modes, making it compatible with a wide range of PLCs and industrial control systems.
High accuracy and anti-interference performance: With high detection accuracy, stable operation, and strong resistance to electrical interference, the sensor ensures fast and reliable liquid level response.
Durable IP66-rated housing: Housed in rugged ABS plastic with an IP66 protection rating, the capacitive fluid level sensor offers excellent resistance to dust ingress and powerful water jets, making it suitable for demanding industrial environments.
Simple external installation and precise adjustment: The capacitive liquid level sensor mounts easily on the outside of non-metallic pipes and features a multi-turn potentiometer along with a clear digital display, allowing accurate sensitivity tuning and threshold adjustment.

Dimension (Unit: mm)

Pipe Outer Diameter Range: Φ6-13mm

6-13mm non contact capacitive level sensor dimension

Pipe Outer Diameter Range: Φ13-26mm

13-26mm non contact capacitive level sensor dimension

Wiring Diagram

Non contact capacitive level sensor wiring diagram

Specs

Pipe Outer Diameter Range	Φ6-13mm	Φ13-26mm
Pipe Wall Thickness	< 2mm	< 3mm
Detection Principle	Non-contact capacitive
Output Type	NPN + PNP
Suitable Pipe Material	Non-metallic (e.g., Glass, PVC, Ceramic, Acrylic, Rubber, PE)
Supply Voltage	12 – 24 VDC
Sensitivity Adjustment	Multi-turn potentiometer
Response Time	1 ms
Load Current	100 mA
Residual Voltage	< 1.5 VDC
Repeat Accuracy	< 5% of sensing distance
Protection	Reverse polarity protection, output short-circuit protection
Withstand Voltage	1000 VAC, 50-60 Hz, 1 min
Housing Material	ABS Plastic
Operating Temperature	-25°C to +70°C
IP Rating	IP66
Dimensions (L×W×H)	43mm × 24mm × 20mm	33mm × 34mm × 20mm
Connection	4-core, 2m PVC cable

Application

Industrial Wastewater Reuse Pipeline

Municipal Water Supply Pipeline

Sewage Treatment Pipeline

FAQ

Q1: What is a non-contact capacitive liquid level sensor for pipes? ❯

A non-contact capacitive liquid level sensor for pipes is a sensor installed on the outer wall of a pipe that detects the presence or level changes of liquid inside the pipe without direct contact with the medium. It is based on the principle of capacitance change; when liquid flows in the pipe or the liquid level changes, the dielectric constant inside and outside the pipe wall changes. The sensor detects this minute change in capacitance to determine the liquid state. Because the sensor does not contact the medium, it is ideal for liquid detection applications in pipes with high hygiene requirements, corrosive substances, or high-pressure sealed systems.

Q2: Does the pipe material affect the capacitive level sensor's detection performance? ❯

Yes, it does to some extent. Non-contact capacitive liquid level sensors are generally suitable for non-metallic pipes, such as plastic pipes, PVC pipes, PP pipes, PE pipes, glass pipes, or composite material pipes. Metal pipes shield the electric field, preventing the sensor from functioning properly, so they are not suitable for direct installation on metal pipes. For pipes with thicker walls or multi-layer structures, the detection distance and sensitivity may also be affected, and the pipe material and wall thickness parameters should be confirmed during selection.

Q3: Does installing a non-contact capacitive liquid level sensor require cutting the pipe or shutting down the system? ❯

Generally, no. Non-contact capacitive liquid level sensors use an external mounting or clamping method, which can be directly fixed to the outer wall of the pipe without drilling holes, cutting pipes, or shutting down the system, greatly reducing installation difficulty and maintenance costs. This feature makes it ideal for retrofit projects or applications requiring continuous production. However, during installation, ensure that the sensor is tightly attached to the pipe wall to avoid air gaps affecting detection accuracy.

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Digital Non Contact Capacitive Liquid Level Sensor for Pipeline

Feature

Dimension (Unit: mm)

Wiring Diagram

Industrial Wastewater Reuse Pipeline

Municipal Water Supply Pipeline

Sewage Treatment Pipeline

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