UV water quality sensor DOIL-800

opticalindustrialfor environmental analysis

Product Overview
The oil in water sensor monitors the oil content in water by ultraviolet fluorescence method. It quantitatively analyzes the concentration of oil in water based on the fluorescence intensity emitted by petroleum and its aromatic hydrocarbon compounds and compounds containing conjugated double bonds after absorbing ultraviolet light. Aromatic hydrocarbons in petroleum can produce fluorescence under ultraviolet light excitation, and the value of oil in water can be calculated based on the intensity of the fluorescence. The product is widely used in real-time online monitoring of oil in wastewater discharge in industrial fields such as petroleum, chemical engineering, and power, as well as in real-time online monitoring of oil in environmental water bodies such as surface water, seawater, drinking water, and pollution source discharge control.

Working Principle
This Online Oil-in-Water Analyzer employs advanced ultraviolet fluorescence technology for real-time oil content monitoring in water. Petroleum-derived aromatic hydrocarbons, as well as conjugated double-bond compounds, emit characteristic fluorescence upon absorbing ultraviolet light. The analyzer quantitatively determines the oil concentration in water by precisely measuring the intensity of this emitted fluorescence, ensuring accurate and reliable detection without relying on chemical reactions.

Key Features

• Advanced Optical Technology: Adopts ultraviolet fluorescence monitoring, eliminating the need for reagents or sample dilution. Enables long-term stable operation with minimal operational complexity.
• Rapid & Continuous Measurement: Features a short response time, supporting real-time continuous monitoring to capture dynamic changes in oil content promptly.
• Compact & Energy-Efficient Design: Equipped with an LED light source, offering small footprint, low power consumption, and easy on-site integration with existing industrial systems.
• Automated Maintenance: Integrated sensor self-cleaning function significantly reduces manual maintenance workload and extends service life.
• Anti-Interference Performance: Incorporates proprietary optical and electronic filtering technology to effectively eliminate ambient light interference, ensuring measurement accuracy in complex environments.

Applications

• Real-time online monitoring of oil content in environmental water bodies, including surface water, groundwater, and drinking water.
• Pollution source emission control: Ideal for monitoring oil discharges from industrial facilities, wastewater treatment plants, and petrochemical operations to ensure compliance with environmental regulations.

Specifications
Specifications | Details
Measurement Range | 0.01~100mg/L
Measurement Accuracy | Less than ±5% or 0.15mg/L of measured value, maximax criterion
Repeatability | ±2%
Resolution | 0.01mg/L
Pressure Range | ≤0.4Mpa
Materials | Main Body: SUS316L (Ordinary version), Titanium alloy (Seawater version); Cable: PUR
Power Supply | 9~36VDC
Communication Protocol | MODBUS RS485
Storage Temperature | -15-50℃
Operating Temperature | 0~45℃ (not freeze)
Weight | 2.1KG
Level of Protection | IP68/NEMA6P
Cleaning Method | Automatic scraping and brushing cleaning
Cable Length | Standard: 10 m, the maximum can be extended 100m

Technical Characteristics / Specifications

• Model: DOIL-800
• Measurement Range: 0.01~100mg/L
• Measurement Accuracy: Less than ±5% or 0.15mg/L of measured value
• Repeatability: ±2%
• Resolution: 0.01mg/L
• Pressure Range: ≤0.4Mpa
• Materials: SUS316L (Ordinary), Titanium alloy (Seawater), Cable: PUR
• Power Supply: 9~36VDC
• Communication: MODBUS RS485
• Storage Temperature: -15-50℃
• Operating Temperature: 0~45℃ (not freeze)
• Weight: 2.1KG
• Protection: IP68/NEMA6P
• Cleaning: Automatic scraping and brushing
• Cable Length: Standard 10m, max 100m