Reagent-free UV fluorescence measurement for continuous oil-in-water monitoring

Online Oil-in-Water Analyzer
A compact UV-fluorescence sensor for continuous petroleum-oil monitoring in surface water, groundwater, drinking water and pollution-source discharge points.
POIL-700 and POIL-800 retain separate ranges, accuracy, pressure, construction and dimensions. The black FUNEL transmitter image provides consistent export-market presentation.
Measurement principle and product highlights
LED optical source supports stable long-term operation
Automatic wiper cleaning reduces optical-window maintenance
Optical and electronic design reduces ambient-light interference
Three 4–20 mA outputs, three configurable relays and Modbus RS485
Time display, data storage, historical review and optional wireless transmission
Product technical specifications
Confirm the water matrix, petroleum or oil type, minimum/normal/peak concentration, pressure, material, fouling, cleaning, mounting, cable and control interfaces before quotation.
- Measurement principle
- UV fluorescence of petroleum and aromatic compounds
- Measurement range
- 0–50 mg/L (NDSA)
- Accuracy
- ±10% of reading or ±0.3 mg/L, whichever is greater
- Repeatability
- ±5%
- Resolution
- 0.01 mg/L
- Pressure rating
- ≤0.1 MPa
- Calibration
- Sample calibration; slope calibration
- Construction
- SUS316L sensor body; PUR cable
- Power supply
- 85–500 VAC; 9–36 VDC
- Analog output
- 3 × 4–20 mA
- Relays
- 3 configurable relays
- Digital communication
- Modbus RS485
- Storage temperature
- -15–50°C
- Operating temperature
- 0–45°C, non-freezing
- Sensor dimensions
- Ø60 × 213 mm
- Transmitter dimensions
- 145 × 125 × 162 mm
- Sensor weight
- 1.55 kg
- Transmitter weight
- 1.35 kg
- Sensor protection
- IP68 / NEMA6P
- Transmitter protection
- IP66 / NEMA4X
- Cleaning
- Automatic wiper cleaning
- Cable
- 10 m standard; extendable to 100 m
Recommended applications
Surface and source water
Track petroleum-oil trends in rivers, reservoirs and source-water projects.
Groundwater
Add continuous screening at wells and groundwater monitoring points.
Drinking water
Monitor oil contamination risk in water-supply and treatment projects.
Pollution-source discharge
Observe oil concentration at industrial or environmental discharge points.
Items to confirm
Identify the water matrix and oil type first, then confirm concentration span, pressure, construction, cleaning and mounting.
- 01Water matrix and petroleum or oil composition
- 02Minimum, normal, peak and alarm concentration
- 03Temperature, pressure, standard SUS316L or seawater titanium construction
- 04Fouling, automatic wiper, mounting, cable, 4–20 mA, relays and RS485
Project documents available on request
After receiving the operating conditions, we prepare the configured datasheet, mounting confirmation, I/O schedule and quotation. The clean product image is not a dimensional drawing.
Get a quote- Configured model datasheet→
- Mounting and cleaning confirmation→
- Cable and I/O schedule→
- Project quotation→
Compare the other POIL model
Selection questions
Does UV-fluorescence measurement require reagents?+
No. The supplied sheets describe direct continuous sensing of petroleum fluorescence in water.
What is the main difference between POIL-700 and POIL-800?+
POIL-700 is 0–50 mg/L, ≤0.1 MPa and Ø60 × 213 mm. POIL-800 is 0–100 mg/L, ≤0.4 MPa and Ø60 × 263 mm, with a titanium seawater option.
Can the website image be used as a technical drawing?+
No. It provides consistent public presentation. Dimensions, interfaces and accessories come from the datasheet and order confirmation.
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.
