The OPS UV Fluorescence Non-contact DSOD703 Oil Spill Detector is a non-contact sensor designed for real-time detection of oil on water. It uses oil’s natural fluorescence to detect oil and alerts you to unsuspected oil spills immediately. It provides 24/7 industrial and environmental water monitoring at effluent discharge or influent intake points.

DSOD703 Oil Spill Detector Monitorable Oils

Automotive motor oil, turbine oil, fuel oil, marine diesel, crude oil, civilian fuel oil, lubricants, mineral oils(non-synthetic), and so on.

DSOD703 Oil Spill Detector Measuring Principle – UV Fluorescence Technology

The OPS DSOD703 Oil Spill Detection and Monitoring Sensor System can detect a 1 μm-thick oil layer on the water’s surface at distances of 0-10 meters above it.

The Oil Spill Detection Sensor emits UV pulses onto the water surface or the ground, stimulating oil molecules in the target area to fluoresce. Utilizing the inherent fluorescent properties of these oil molecules, it identifies their chemical composition and sends an early warning signal to the operator.

DSOD703 Oil Spill Detector Installation Cases

You can see the value of oil spill detectors in real-world settings. The table below highlights successful applications in different countries:

Case Study 1: Installation in Sewage Channels, Russia

In an industrial wastewater system in Russia, the OPS DSOD703 oil spill detector was deployed above sewage channels to address long-standing risks of hydrocarbon contamination. This project demonstrates that the DSOD703 is not limited to open-water environments—it is equally effective in wastewater channels, drainage conduits, and industrial effluent pathways. This Russian deployment significantly enhanced operational visibility for wastewater treatment personnel, enabling them to manage pollution risks more effectively and maintain environmental compliance.  ( Read more info: https://opticaldosensor.com/desun-uniwill-dsod703-oil-spill-detector-installed-in-sewage-channels-in-russia/ )

Case Study 2: Coastal Oil Depot in Hainan

A major coastal oil storage facility in Hainan implemented the DSOD703 to strengthen its environmental safety measures. Positioned above the water near loading zones, the system provides continuous real-time monitoring. Operators now receive instant alerts at the earliest signs of oil leakage, enabling containment before the spill spreads. The depot reports a significant improvement in operational environmental compliance and risk reduction. ( Read more info: https://opticaldosensor.com/desun-uniwill-dsod703-non-contact-oil-spill-detector-installed-at-coastal-oil-depot-in-hainan/ )

Case Study 3: Underground Diesel Storage Tank Leak Monitoring

Even small leaks from underground diesel storage tanks can migrate through soil and eventually reach drainage systems or groundwater, causing costly environmental damage and regulatory challenges. To strengthen its leak-detection capability, they deployed OPS DSOD703 Oil Spill Detectors as part of its early-warning monitoring system.

The DSOD703 units were installed above inspection wells and drainage collection channels connected to the underground diesel tank containment area. This configuration enables the detector to continuously monitor the presence of oil on water surfaces within the drainage infrastructure. If leaked diesel reaches the monitoring points, the sensor immediately detects the oil film and triggers an alarm signal to the facility’s control system.

This case demonstrates that the DSOD703 is effective in open water bodies, wastewater channels, and coastal oil facilities, and that it serves as a reliable safeguard for underground fuel storage systems. By integrating oil-on-water detection at drainage and inspection points, industrial operators can establish a practical, cost-effective early-warning network for monitoring diesel storage leaks. ( Read more info: https://opticaldosensor.com/desun-uniwill-dsod703-oil-spill-detectors-installed-on-overseas-diesel-storage-project/ )

Case Study 4: DSOD703 Oil Spill Monitoring & Alarm Systems for Desalination

In a seawater desalination facility in the United Arab Emirates, the OPS DSOD703 oil spill detector was installed near seawater intake channels and drainage areas to monitor potential oil contamination from pumps, generators, or maintenance activities. The system continuously monitors the water surface in real time. It triggers immediate alarms when oil films are detected, allowing operators to respond quickly and prevent contamination from entering the desalination process. This deployment significantly improved environmental protection, operational safety, and regulatory compliance while safeguarding critical desalination equipment and surrounding coastal ecosystems. ( Read more info: https://opticaldosensor.com/desun-uniwill-dsod703-oil-spill-monitoring-alarm-systems-installed-in-seawater-desalination-plants-in-the-uae/)

You can trust these solutions to deliver real-time data, improve response, and support both environmental and economic goals.

Technical Parameter

Features and Benefits of Oil Spill Detectors

• Long-distance Non-contact Detection Sensor

With non-contact optical monitoring technology, the sensor is unaffected by marine biofouling or oil contamination, requiring no cleaning or maintenance and easier installation. Long-distance detection of oil, with a maximum monitoring distance of 10m above the water surface.

• High Sensitivity

Using UV LED light to excite the oil’s native fluorescence, the sensor can detect oil films as thin as 1 µm, minimizing false alarms.

• Online 24/7 Monitoring

24-hour continuous real-time monitoring, no daytime or nighttime limitations.

• IP68 Waterproof Rating

Rugged IP68-certified sealed design for harsh environments.

• Long Lifetime

Lifetime (>2 years), built-in system calibration, maintenance-free, low power operation (< 10W).

• RS485 Output Signal

The Oil Spill Detection System is equipped with an RS-485 interface that enables fast, easy sensor configuration via Modbus. It can be easily connected to the monitoring system. DSMC5100 can be equipped with it to read real-time monitoring data, and the data storage function provides users with a basis for analyzing the data.

Application Areas of Non-contact Oil Spill Monitoring System

• Waste Water

Monitors oil contamination in wastewater treatment facilities, ensuring compliance with environmental standards.

• Hydro Dam

Detects oil leaks from machinery and equipment, helping to prevent contamination in hydroelectric power reservoirs.

• Airports

Provides continuous monitoring for potential fuel and oil leaks in airport water runoff, protecting surrounding ecosystems.

• Oil Refinery

Enables early detection of oil spills and leaks in refineries, improving environmental safety and operational efficiency.

• Shipping Ports & Harbor

Monitors waterways for accidental oil spills, enabling immediate response and pollution control in busy port areas.

• Manufacturing

Helps detect oil leaks in industrial settings, reducing environmental impact and ensuring cleaner operations.

• Oil Platform

Continuously monitors offshore oil platforms to detect spills and leaks in real-time, minimizing ocean contamination risks.

• Powder Plant

Detects oil leaks in powder production facilities, reducing contamination risks in sensitive production areas.

• Drinking Water

Monitors sources of drinking water to ensure they remain uncontaminated by oil, safeguarding public health.

• Irrigation Canal

Ensures that irrigation channels remain free of oil pollutants, protecting agricultural water quality.

• Fuel Depot

Monitors storage and handling areas at fuel depots, detecting leaks before they impact the environment.

• Aquaculture

Detects oil contamination in aquaculture facilities, protecting water quality for aquatic farming.

Installation Diagram Reference of Non-contact Oil on Water Detection System

Comparison Table of Oil In Water Sensor and Oil Spill Detector

FAQs

1. What types of oil can the OPS Oil Spill Detector detect?

The OPS Oil Spill Detector is primarily used for testing industrial oils and cannot measure animal, vegetable, or synthetic oils. It supports testing of crude oil, diesel oil, lubricating oil, kerosene, and other industrial oils.

2. Can the oil spill monitor test the thickness of the oil film on the water surface? How thick can it be tested?

The oil spill detector primarily operates by detecting the fluorescence of petroleum-based substances, recognizing and quantifying the oil film through spectral excitation and signal analysis. Simply put, oil spill monitors cannot directly tell people the exact thickness of the water surface. It can only use the strength of the fluorescent signal reflected from the oil film to determine the amount of leakage, roughly.

We briefly divide the process into three steps:
Step 1: The detector adopts a 365nm UV pulsed LED, which vertically
irradiates the water surface and stimulates the oil film to produce fluorescence.
Step 2: The oil is excited to emit **400-650nm fluorescence** (the peak value varies with the type of oil; for crude oil, about 480nm; for light oil, about 420nm).
Step 3: The detector converts fluorescence data into oil spill alarms or concentration values using signal processing and classification algorithms.

3. What is the thickness or the sensitivity of the oil film that can be detected?

Mainly for oil films floating on the surface of water or the ground, the detection sensitivity is up to 1 micron in thickness (equivalent to 1 liter of oil spreading over 1000 square meters of water).

4. What about anti-interference performance?

Like flowing leaves in the water, plastic, water plants, etc. Non-petroleum substances (e.g., algae, organic debris) have different fluorescence properties and can be excluded from interference by spectral filtering and algorithms. In combination with our controllers, we can set up data to exclude such substances.

5. What is the Temperature limitation of the use environment?

0~60 degrees Celsius.

6. Is it disturbed by sunlight, and is it specially treated during installation?

It will be affected a little bit, so when installing it, we recommend equipping it with a light-avoiding Protective Shell. Of course, it is possible not to use it, but if we want to get a more perfect detection, the light shield will be very useful.

7. Why is detecting oil leaks early important?

Detecting oil leaks is essential for environmental, operational, and safety.

-Environmental Protection
Preventing Ecological Damage: Oil spills can devastate marine and terrestrial ecosystems, affecting plants, animals, and water quality.
Early Detection Minimizes Spread: Sensors can detect spills early, reducing the area affected and enabling quicker response to protect vulnerable habitats.

-Compliance with Regulations
Governments and environmental agencies enforce strict regulations on pollution and spill management. Sensors help organizations monitor and report compliance in real-time.

-Emergency Response
Early detection reduces risks to personnel and infrastructure by initiating containment measures promptly.

-Reducing Cleanup Costs
Early detection of spills limits the spread, significantly reducing cleanup costs.

Deploying oil spill detection sensors is a proactive measure to balance industrial operations with environmental stewardship and regulatory adherence.

8. Where should Non-contact Oil Spill Detectors be installed?

-Detecting oil storage leaks to prevent industrial plant accidents;
-Monitoring oil leaks in wastewater flowing into a wastewater treatment plant;
-Monitoring oil spills into rivers;
-Monitoring oil spills that are entering waterways;
-Oil leak detection in food or pharmaceutical production processes;
-Monitoring oil leaks at specific locations;
-Installation in locations where contact oil detection equipment is difficult to install;
-Manufacturing process requiring control of oil content;
-Places where sleep oil monitoring is required;
-Where surface oil monitoring is required;
-Areas where unmanned oil monitoring is needed in industrial settings.

9. In what situations are oil leaks or spills likely to occur?

Oil leaks or spills can occur in various situations, often due to technical failures, operational errors, environmental factors, or unforeseen accidents. Here are the primary situations where oil leaks or spills are likely:

-Industrial Operations
Pipeline Ruptures: Damage due to corrosion, wear and tear, or external impacts.
Tank and Storage Failures: Structural issues or improper maintenance of oil storage tanks.
Refining and Processing Facilities: Equipment malfunctions or accidents during oil refining and transfer.
Machinery Leaks: Oil leaks from industrial equipment, pumps, or generators.

-Transportation
Marine Oil Spills: Tanker accidents, collisions, or groundings in oceans or rivers.
Pipeline Transportation: Leaks due to pressure changes, corrosion, or natural events.
Rail or Road Transport: Accidents involving vehicles carrying oil or fuel.
Air Transport: Leaks from aircraft fuel systems or during refueling operations.

-Offshore Drilling and Production
Blowouts: Uncontrolled releases of oil or gas during drilling operations.
Platform Failures: Structural damage to offshore rigs or production facilities.
Subsea Equipment Issues: Leaks from underwater pipelines, wellheads, or valves.

-Storage and Handling
Improper Handling: Errors during loading, unloading, or transferring oil.
Aging Infrastructure: Leaks from old or poorly maintained storage systems.
Tank Overfilling: Spills caused by human or mechanical errors during filling.

-Human Error
Operational Mistakes: Incorrect procedures during oil processing or transport.
Negligence: Failing to perform routine maintenance or follow safety protocols.
Spill Containment Failures: Lack of proper systems or oversight to control spills.

10. Who can benefit from using a Non-contact Oil Spill Detection Sensor Instrument?

-Port and coastal agencies, oil companies, ship owners, and oil spill response organizations.
-Anybody who requires reliable round-the-clock oil spill surveillance, support for fast and efficient recovery of oil spills, and efficient deployment of boom and skimmers.
-Oil spill response vessels.

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