OPS DS530 Online Oil in Water Sensor is a complete solution for oil in water measurements in the waste water. The oil in water sensor adopts the principle of ultraviolet fluorescence analysis, has high sensitivity, and can detect soluble and emulsifiable oils. In addition, the self-cleaning brush version can be selected to effectively eliminate the influence of oil pollution on the measurement. It is suitable for a variety of water quality measurement scenarios such as oilfield monitoring, industrial circulating water, condensate, wastewater treatment, and surface water stations.

Measuring Principle of DS530 Fluorescence Oil in Water Sensor

The ultraviolet fluorescence method is used to monitor the concentration of oil in the water, and the oil concentration in the water is quantitatively analyzed based on the fluorescence intensity emitted by the petroleum and its aromatic hydrocarbon compounds and compounds containing conjugated double bonds after absorbing ultraviolet light. The aromatic hydrocarbons in petroleum can produce fluorescence under the excitation of ultraviolet light, and the value of oil in water can be calculated according to the intensity of the fluorescence.

Features of Online Oil in Water Probe

-Digital sensor, RS-485 output, support MODBUS;

-With automatic cleaning brush to eliminate the impact of oil on the measurement;

-Eliminate the effects of ambient light on measurements with unique optical and electronic filtering techniques;

-Unaffected by suspended solids in water.

Technology Parameter

Applications of Oil in Water Monitor

-Drinking water

-Wastewater

-Process measurement and control technology

-The environmental monitoring

-Heat Exchanger Leak Detection

-Oil Tank Leakage Detection

-Intake Water Monitoring

-Reinjection Water Monitoring

-Industrial Wastewater Monitoring

-Marine Discharge Monitoring

-Plant Runoff / Storm Water Monitoring

Oil Measured by OPS Oil in Water Detection Sensor 

-Marine Diesel Engine

-Heating Oil

-Lubricating Oil

-Hydraulic Oil

Mineral Oil

-Diesel

-Petrol Diesel

-Fuel oil

OPS Oil in Water Sensors Use sites

Customer Comment

Comparison Table of Oil In Water Sensor and Oil Spill Detector

FAQs

1. How does an online oil-in-water sensor work?

For Fluorescence-based oil in water sensors: These sensors utilize fluorescent molecules that emit light when excited by a specific wavelength of light. When oil or hydrocarbons are present in water, they interact with the fluorescent molecules, causing a change in the emitted light’s intensity or wavelength. By measuring this change, the sensor can determine the oil concentration in the water.

The sensor typically consists of a probe or sensor head that is immersed in the water sample. This probe contains the necessary components for detecting and measuring the presence of oil. The data collected by the sensor can then be analyzed to determine the oil concentration in the water.

2. Why do we need to monitor oil in water?

Oils and hydrocarbons are often a major component of a variety of products, from fuels to solvents to the many chemicals used in industry during processing. In industrial production, some of these hydrocarbons, oils, and solvents can leak into sewers or, worse, directly into the environment. Similarly, domestic and agricultural fuel storage can lead to accidental spills into waterways and aquifers. In the oil industry, one ton of oil spilled can quickly spread over an oil slick covering an area of approximately 10,000 sq. m. Oil in water sensors and analyzers can be useful by giving early warning of problems as they occur.

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The post DS530 Online Oil In Water Sensor 0-200ppm & 0-5ppm appeared first on Water Quality Sensors.

The DS530 immersion oil-in-water probe utilizes advanced UV fluorescence measurement technology for continuous online monitoring of oil concentration in water. This technique detects the characteristic fluorescence emitted by oil compounds under ultraviolet excitation, providing high sensitivity and strong selectivity for oil contaminants. Compared with conventional infrared scattering or absorption methods, UV fluorescence offers superior trace oil detection capability and improved resistance to interference.

An optional automatic self-cleaning brush system effectively removes air bubbles and fouling from the probe surface during operation, minimizing environmental influences on measurement accuracy. This significantly extends maintenance intervals and ensures excellent long-term stability and repeatability under continuous online operation.

With fast response and reliable performance, the DS530 oil in water analyzer enables early detection and warning of oil contamination, supporting water quality management and process optimization.

Working Principle

The oil content in water is measured using the ultraviolet fluorescence method. When exposed to ultraviolet (UV) excitation, oil components—particularly aromatic hydrocarbons and compounds containing conjugated double bonds—absorb UV energy and emit characteristic fluorescence.

The intensity of the emitted fluorescence is directly related to the concentration of oil present in the water. By detecting and analyzing this fluorescence signal, the sensor performs a quantitative determination of oil concentration. Through calibrated signal processing, the measured fluorescence intensity is converted into an accurate oil-in-water concentration value.

Since aromatic hydrocarbons are a primary source of fluorescence in petroleum products, the UV fluorescence technique provides high sensitivity, strong selectivity, and excellent suitability for trace oil detection, making it well-suited for continuous online monitoring of oil contamination in water.

Technical Parameter

Online Oil-in-water Sensor Features

Using the principle of fluorescence. Compared with several commonly used methods, the fluorescence method is more efficient, faster, and can be monitored online in real time.

• Digital sensor, RS-485 output, supports MODBUS.
• Withan automatic cleaning brush to eliminate the impact of oil on the measurement.
• Eliminate the effects of ambient light on measurements with unique optical and electronic filtering techniques.
• Unaffected by suspended solids in water.

Installation Cases

An Oil-in-water Monitoring System is suitable for water quality monitoring scenarios such as oil quality monitoring, industrial circulating water, condensate water, wastewater treatment, and surface water stations.

Applications of Oil-in-Water Sensors

Oil Content in Water Analyzers are widely used for continuous monitoring and early detection of oil contamination in various water systems, including:

• Industrial Circulating Water Systems
  Monitoring oil leakage in cooling water and closed-loop circulation systems to protect equipment and ensure stable operation.

• Condensate and Boiler Feedwater Monitoring
  Detecting oil ingress in condensate return lines to prevent contamination of boilers and heat exchangers.

• Wastewater Treatment Plants
  Measuring oil content in influent, effluent, and process streams to support treatment efficiency and regulatory compliance.

• Oil & Gas Industry
  Monitoring produced water, oily wastewater, and discharge water from refineries, offshore platforms, and petrochemical facilities.

• Power Plants
  Early detection of oil contamination from turbines, transformers, and lubrication systems.

• Surface Water and Environmental Monitoring
  Continuous monitoring of rivers, lakes, reservoirs, and environmental monitoring stations for oil pollution events.

• Industrial Process Monitoring
  Ensuring product quality and process safety in industries such as petrochemical, chemical, steel, and manufacturing.

• Leak Detection and Early Warning Systems
  Providing real-time alarms for oil leaks to minimize environmental impact and operational risk.

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FAQs About DS530 Oil in Water Sensors

1. What is an Oil in Water Sensor?
An oil in water sensor is a device that detects and measures the concentration of oil or hydrocarbons present in water. It is used in industries such as environmental monitoring, wastewater treatment, and offshore oil and gas operations.

2. How does an oil in water sensor work?
OPS oil in water sensors use UV fluorescence to differentiate oil types.

3. What industries use oil in water monitors?
Oil & Gas: Monitoring leaks and spills in offshore drilling.
Marine & Shipping: Detecting oil discharge in ballast water.
Industrial Wastewater Treatment: Ensuring compliance with environmental regulations.
Power Plants: Monitoring cooling water contamination.

4. What is the detection range of an oil in water sensor?
Detection ranges vary by model.
OPS DS530 measures oil concentrations from 0-200 ppm and a Small measuring range of 0-5ppm can be customized.

5. How do I calibrate an oil in water sensor?
Most sensors require periodic calibration using a known oil standard. Some models feature automatic calibration and self-diagnostics for easier maintenance.

6. What factors affect sensor accuracy?
Temperature & Salinity: Can influence sensor response.
Particle Interference: High turbidity or suspended solids may impact readings.
Oil Type: Different oils have varying fluorescence/absorption properties.
Biofouling: Marine environments may require frequent cleaning.

7. How do I maintain an oil in water sensor?
Clean the sensor regularly to remove fouling.
Calibrate according to the manufacturer’s guidelines.
Protect the sensor from extreme environmental conditions.
Inspect cables and connections for damage.

8. Can an online oil in water analyzer differentiate between oil types?
Some advanced fluorescence-based sensors can distinguish between crude oil, diesel, lubricating oil, and other hydrocarbons based on their unique fluorescence signatures.

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