Designed for pipeline liquid level monitoring, this capacitive liquid level sensor adopts a pipe-mount design for easy installation without cutting or modifying the pipeline. It supports NPN or PNP open-collector output options and operates on a 10–30V DC power supply. The compact 50g structure makes it ideal for space-limited applications requiring stable and accurate liquid detection.
Installation & Detection Performance
- Non-contact pipe-clamp mounting: This non-contact capacitive liquid level sensor supports bypass pipe installation. Secure it to non-metal pipes via cable ties. No pipe cutting or drilling is required, and its position is freely adjustable vertically. The built-in amplifier saves installation space while ensuring long service life and stable detection performance.
- Wide compatibility for small-diameter non-metallic pipes: The clamp-on pipeline level sensor fits pipes up to 26 mm OD with wall thickness ≤1.5 mm. Its measurement is not affected by pipe transparency or liquid color.
- Adjustable sensing sensitivity: Fitted with a sensitivity potentiometer. Rotate clockwise to raise sensitivity and counter-clockwise to lower it, achieving precise signal output for various liquid media.
Hardware & Environmental Reliability
- IP67 Ingress Protection: Featuring premium sealing, this non-contact capacitive level sensor delivers reliable waterproof and oil-proof performance. Its shock-resistant construction guarantees consistent long-term operation in harsh industrial environments.
- Clear status indicator light: High-brightness LED displays real-time working status. It illuminates at ON output and remains off with no output for fast on-site inspection.
- Flame-retardant PBT/ABS housing: Made of heat-resistant, anti-interference, and insulating flame-retardant material to deliver solid mechanical durability.
Applications
This non-contact capacitive liquid level sensor works with a wide range of small-diameter non-metallic pipes. Ideal for beverage filling lines, water-storage equipment, wastewater treatment plants, hydraulic spraying systems, inline pipeline monitoring, and refrigeration units for consistent pipeline liquid-level measurement.
Pipeline Monitoring
Hydraulic Spraying
Beverage Filling
Refrigeration Equipment
| Model | SISCO-CLS-CE30-26 |
| Working Principle | Dielectric parameter detection |
| Housing Style | Pipe-Current Consumption mount type |
| Sensing Range | 14 - 26mm |
| Detected Object | All kinds of liquids |
| Indicator Lamp | Yellow LED for output status |
| Sensing Distance Adjustment | Potentiometer knob |
| Switching Mode | Normally Open / Normally Closed optional |
| Output Mode | NPN or PNP open collector output optional |
| Switching Frequency | 20Hz |
| Repeat Accuracy | ≤3% |
| Hysteresis | ≤20% |
| Operating Voltage | 10 - 30V DC ±10% |
| Current Consumption | ≤10mA |
| Residual Voltage | ≤2.5V |
| Load Current | ≤150mA |
| Leakage Current | <0.01mA |
| Insulation Resistance | ≥50MΩ / 500V DC |
| Withstand Voltage | 1000V AC, 50/60Hz, 1 minute |
| Vibration Resistance | 10 - 55Hz, double amplitude 1.5mm, 2-hour test on X/Y/Z axes |
| Protection Circuit | Reverse-polarity protection, overload & short-circuit protection |
| Operating Temperature | -25℃ ~ +75℃ (non-freezing) |
| Operating Humidity | 35% - 85% RH (non-condensing) |
| Ingress Protection | IP67 |
| Connection Method | 2-core / 3-core cable |
| Dimension (W×H×D) | 35.0×33.4×22.4mm |
| Material | PBT/ABS high-temperature-resistant & flame-retardant plastic |
| Weight | 50g |
| Accessories | 2×cable ties |
Dimensions (unit: mm)
Wiring Diagram
Q1: Can this non-contact capacitive liquid level sensor be installed on a pipeline without cutting the pipe?
A1: Yes, this non-contact capacitive liquid level sensor can be installed on a pipeline without cutting or opening the pipe. Its pipe mount design allows the sensor to be attached directly to the outside wall of a non-metallic pipe and detect liquid changes through the pipe material.
Q2: What is the sensing range of this non-contact capacitive liquid level sensor?
A2: This capacitive liquid level sensor has an adjustable sensing range of 14–26 mm, allowing it to detect liquid levels through different non-metallic pipe walls.
Q3: How much power does this non-contact capacitive liquid level sensor consume?
A3: The sensor has a low current consumption of ≤10 mA, which helps reduce power usage and makes it suitable for continuous monitoring applications.
Tips: Can this non-contact capacitive liquid level sensor work outdoors?
Yes, this non-contact capacitive liquid level sensor can work outdoors. It features an IP67 protection rating, which provides protection against dust and temporary water immersion, helping the sensor maintain stable performance in outdoor or humid environments.
With an operating temperature range of -25℃ to +75℃ (non-freezing) and a durable PBT/ABS flame-retardant housing, this sensor is suitable for outdoor pipeline liquid detection, water systems, and industrial fluid monitoring applications where exposure to moisture, dust, and temperature changes may occur.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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