The PLS-SS101 Optical Fuel Level Sensor is an industrial-grade high-precision liquid level detection device independently developed and manufactured for fuel and oily liquid monitoring scenarios. Adopting premium full stainless steel construction, this sensor delivers outstanding oil resistance, corrosion resistance, pressure resistance and aging resistance, fully adapting to harsh industrial working environments with fuel, lubricating oil and other oily media. Different from traditional mechanical fuel level sensors with floating parts, it applies mature infrared optical refraction sensing technology with zero mechanical moving structures, completely avoiding common faults such as mechanical jamming, wear and rust failure. Designed for high-reliability industrial fuel level monitoring, it supports standard batch supply and personalized customized services, serving as a core sensing component for industrial automation equipment and mechanical supporting systems with stable and accurate fuel level detection performance.
Product Features
Industrial-Grade Fuel Resistance & Durability
Made of high-strength stainless steel material, the sensor features excellent resistance to fuel, diesel, lubricating oil and other oily liquids. It is not easy to be corroded, oxidized or deformed after long-term immersion and operation, adapting to continuous working in harsh industrial environments and greatly extending service life.
Zero Mechanical Failure & High Stability
Adopts fully solid-state optical sensing structure with no floating balls, springs or other mechanical moving parts. It eliminates mechanical jamming, friction wear and signal deviation caused by long-term vibration and liquid fluctuation, ensuring ultra-low failure rate and long-term stable operation of industrial equipment.
High Precision & Fast Response
Equipped with high-sensitivity infrared optical sensing chip, the sensor realizes instant induction of fuel level changes with fast response speed and high detection accuracy. It can accurately identify fuel full level, low level and empty level status, effectively preventing fuel overflow, equipment oil shortage and idle running failures.
Strong Anti-Interference & Wide Adaptability
With optimized industrial circuit design, it has strong resistance to electromagnetic interference, vibration and temperature fluctuation. It can work stably in complex industrial scenes such as mechanical vibration, high and low temperature alternation, and is compatible with various industrial control systems and fuel storage equipment.
Working Principle
🔬 Working Principle: Infrared Optical Refraction & Reflection
The PLS-SS101 sensor accurately determines fuel levels by detecting the varying refractive indices of air and fuel liquids:
🌫️ No-Fuel State (Probe in Air): Total internal reflection occurs within the precision probe. The built-in receiver captures the light and outputs a fixed electrical signal.
💧 Fuel State (Probe Immersed): A change in the external refractive index causes the light to refract out of the probe. The receiver detects the loss of the light signal, triggering a state switch.
⚙️ Smart Conversion & Control: Seamlessly converts microscopic light signal variations into standard electrical outputs. This enables real-time level monitoring and automatic control, perfectly empowering automated fuel supply systems and safety protection mechanisms.
Product Parameters
|
Parameter Item |
Technical Specification |
|
Product Model |
PLS-SS101 |
|
Housing Material |
Stainless Steel |
|
Detection Medium |
Gasoline, Diesel, Lubricating Oil and Other Oily Liquids |
|
Detection Principle |
Infrared Optical Refraction Sensing |
|
Response Time |
≤8ms |
|
Working Voltage |
5V-30V DC |
|
Working Current |
≤25mA |
|
Operating Temperature |
-30℃ ~ +85℃ |
|
Output Signal |
Digital Switch Signal |
|
Protection Grade |
IP67 |
|
Service Life |
≥800,000 Times Switching |
|
Overall Length |
65mm (Standard) |
|
Probe Diameter |
8mm (Standard) |
|
Thread Specification |
M10*1.0 (Standard) |
Application Fields
🏭 Wide Range of Applications
Specifically designed for industrial automation and equipment integration, the PLS-SS101 perfectly adapts to:
Construction Machinery & Industrial Generator Sets
Automatic Fuel Dispensing Equipment & Mechanical Fuel Tanks
Industrial Hydraulic Systems & Oil Storage Tanks
Supporting Automated Production Lines
🛡️ Core Functions & Safety Value
Four Core Functions: Enables real-time level monitoring, automatic fuel supply control, low-level alarms, and anti-overflow protection.
Eliminates Key Hazards: Effectively prevents equipment downtime, fuel wastage, and safety incidents caused by abnormal liquid levels.
Empowers Smart Upgrades: Provides stable protection for the continuous and safe operation of industrial equipment, comprehensively enhancing the intelligent control capabilities and operational safety of fuel supply systems.
Installation Method
🔧 Flexible & Hassle-Free Installation
Zero Complex Debugging: Supports flexible industrial-grade installation. Ready to use right out of the box, eliminating tedious calibration processes.
Secure Threaded Locking: The standard model features a threaded lock design, ensuring a rock-solid fit into pre-drilled holes on various fuel and oil storage tanks.
Dual Mounting Options: Supports both top vertical and side horizontal installation, effortlessly adapting to complex equipment structures.
Compact & Vibration-Resistant: Specifically designed for tight spaces. Offers quick installation, secure locking, and superior anti-vibration performance, while making future maintenance and disassembly highly convenient.
⚠️ Installation Precautions
Precise Positioning: Always ensure the optical probe is fully placed within the "effective detection area" of the tank.
Avoid Interference Sources: Keep the probe away from direct contact with tank walls, bottom sediments, or impurities to prevent false signal readings.
Customizable Options
1. Structural Size Customization
Support customized probe length, overall dimension, thread specifications (M8/M10/M12 and other optional threads) and installation interface modes to match different fuel tank sizes and equipment installation standards.
2. Electrical Performance Customization
Customize working voltage range, output signal mode, wire length and wiring definition according to industrial control system parameters, realizing seamless docking with various industrial PLC and control modules.
3. Scenario Adaptation Customization
Support customized high-temperature resistant, explosion-proof, enhanced anti-corrosion and anti-oil-fouling versions, meeting the detection requirements of special industrial environments such as high temperature, high vibration and impure fuel media.
Why Choose Us
🏭 Factory Direct & Industrial Focus
Deep Expertise in Optical Sensing: Long-term focus on industrial automation integration with deep insights into the detection pain points of industrial fuel systems.
Industrial-Grade Reliability: Products are specifically engineered for harsh industrial environments, offering superior stability and performance over standard commercial sensors.
💰 Direct Factory Pricing & Unbeatable Value
No Middlemen: We operate on a direct factory sales model, passing the savings directly to our customers to deliver top-tier industrial products at exceptional value.
⚙️ Flexible Customization & Rapid Response
OEM / ODM Supported: We provide agile customization services to meet personalized equipment requirements, perfectly resolving adaptation challenges in specialized working conditions.
🤝 End-to-End Service & Global Trust
One-Stop Support System: Comprehensive professional service spanning pre-sales consulting, production progress tracking, and post-sales technical maintenance.
Quality & Delivery Excellence: Trusted globally by numerous industrial equipment manufacturers for our reliable quality, fast turnaround, and expert technical support, ensuring long-term, stable partnerships.
FAQ
Q: What types of fuel media is the PLS-SS101 sensor applicable to?
A: The standard model is suitable for conventional oily liquids such as diesel, gasoline and mechanical lubricating oil. For special fuel media with high viscosity or impurity content, we can provide customized anti-fouling and anti-corrosion versions to ensure stable detection.
Q: Can the sensor work stably in vibrating industrial equipment?
A: Yes. The product adopts integrated solid-state structure with no loose mechanical parts. It has passed professional industrial vibration tests and features excellent vibration resistance and shock resistance, which can adapt to long-term operation of vibrating equipment such as engineering machinery and generator sets.
Q: Can you provide customized industrial explosion-proof models?
A: Yes. We support customized explosion-proof, high-temperature resistant and enhanced industrial-grade versions according to customer working condition requirements, which can meet the safety detection needs of flammable and explosive industrial fuel scenarios.
Q: What is the delivery cycle for standard and customized products?
A: Standard PLS-SS101 sensors are in stock with fast delivery within 3 working days. The delivery cycle of customized products will be determined according to the customization difficulty, and we will ensure quality and deliver goods efficiently.
Q: Is the sensor resistant to oil dirt and long-term immersion?
A: The whole body is made of high-quality industrial stainless steel with optimized anti-fouling optical probe design. It can resist long-term immersion in fuel and avoid oil dirt adhesion affecting detection accuracy, suitable for long-term continuous industrial operation.
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