UV water quality sensor DOIL-700

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 surface water, groundwater, oceans, water sources, etc.

Measurement Principle
This Oil-in-Water Sensor Online Analyzer adopts ultraviolet fluorescence technology for oil content monitoring. Petroleum aromatic hydrocarbons and their conjugated double bond compounds absorb ultraviolet light and emit fluorescence; the analyzer quantitatively calculates water oil concentration based on the intensity of this fluorescence, enabling accurate oil-in-water detection.

Key Features

• Advanced optical monitoring: Reagent-free, no dilution required, and supports long-term stable operation.
• Short response time for continuous, real-time measurement.
• LED light source: Compact size, low power consumption, and easy on-site integration.
• Equipped with automatic cleaning function to reduce maintenance workload.
• Unique optical and electronic filtering technology eliminates ambient light interference.
• Wide operating range and high detection sensitivity.
• All-metal casing design for sturdiness and durability.

Applications

• Real-time online oil-in-water monitoring for water treatment systems and wastewater discharge in industrial sectors (petroleum, chemical, electric power, etc.).
• Real-time online oil-in-water monitoring for environmental water bodies (surface water, groundwater, seawater, drinking water) and pollution source emission control.

Specifications
Specifications | Details
Measurement Range | 0.01~50mg/L
Measurement Accuracy | Less than ±10% or 0.3mg/L of measured value, maximax criterion
Repeatability | ±5%
Resolution | 0.01mg/L
Pressure Range | ≤0.1Mpa
Materials | Main Body: SUS316L; Cable: PUR
Power Supply | 9~36VDC
Communication Protocol | MODBUS RS485
Storage Temperature | -15-50℃
Operating Temperature | 0~45℃ (not freeze)
Weight | 1.5KG
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-700
• Measurement Range: 0.01~50mg/L
• Accuracy: Less than ±10% or 0.3mg/L of measured value
• Repeatability: ±5%
• Resolution: 0.01mg/L
• Pressure Range: ≤0.1Mpa
• Materials: SUS316L main body, PUR cable
• Power Supply: 9~36VDC
• Communication: MODBUS RS485
• Storage Temperature: -15-50℃
• Operating Temperature: 0~45℃ (not freeze)
• Weight: 1.5KG
• Protection: IP68/NEMA6P
• Cleaning: Automatic scraping and brushing
• Cable Length: Standard 10m, up to 100m