Beijing Qinglian Measurement and Control Technology Co., Ltd

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Beijing Qinglian Measurement and Control Technology Co., Ltd

Tel：18500242456
Email：sales@qingliancekong.com

Address: Inside Beijing Taixing Art Institute, Shuipo Village, Gaoliying Town, Shunyi District, Beijing

OiW-200 Online Oil-in-Water Analyzer

Continuously measure oil concentration in water.

Ultraviolet fluorescence sensors measure benzene compounds, polycyclic aromatic hydrocarbons, and refined oil components in water.

Product Features

Instrument Overview

The OiW-200 Water Oil Analyzer is a smart instrument consisting of a compact probe and transmitter. It employs the ultraviolet fluorescence principle to measure benzene-based compounds, polycyclic aromatic hydrocarbons, and refined oil components. This probe features a robust solid-state design, making it suitable for use in corrosive and high-pressure environments.

The underwater oil probe can be used in a wide variety of applications, including wastewater treatment, drinking water treatment, environmental monitoring, and process detection. This probe can either be suspended directly in the water or installed within AAI’s proprietary flow cell.

The transmitter features a compact design and is used to receive signals from oil probes submerged in water. The transmitter processes these signals to calculate and output measurement data. Additionally, the transmitter can convert the measurement data into a 4–20 mA analog output or transmit it via RS232, RS485, or Profibus. Measurement data can be saved using a built-in SD memory card. This transmitter provides four relay outputs, two of which can be configured for concentration alarm functions. The entire transmitter is controlled via a touch screen.

Instrument Features

Simple and quick calibration process
Adjustable range
Insensitive to ambient light
Can withstand higher pressure
Low power consumption
Real-time online monitoring
Modbus RTU interface
The oil probe in water is made of stainless steel; titanium is optional.
No need for a complex pre-processing system.
No consumable materials, such as reagents, are required.

Measurement principle

When light of a specific wavelength shines on oil droplets, the droplets absorb some of the light and then re-emit light at a different wavelength. This is known as the fluorescence process. The OiW-200 process analyzer measures the concentration of oil in water by monitoring the intensity of fluorescence.

The sensor inside the OiW-200 emits light around 280 nm. Oil particles in the sample absorb a portion of this light and reemit light in the wavelength range from 300 nm to 400 nm. These emitted photons are detected by a sensor, and the intensity of the emitted light is correlated with the oil content. Each type of oil has a unique fluorescence spectrum. The OiW-200 process analyzer is suitable for measuring refined oils, benzene and benzene derivatives, as well as polycyclic aromatic hydrocarbons in water.

Installation method

The oil-in-water probe can either be suspended directly in the water or installed inside AAI’s specially designed flow cell.

Technical concept

Technical Parameters

The following technical specifications are based on the premise that all components and the sample system are supplied by AAI, and that the system installation has been approved by AAI. For technical specifications under other conditions, please consult AAI’s sales team directly.

Water Oil Probe Specifications

Light source	LED, less than 300 nm
Light source lifespan	3 years
Spectral detection range	200–800 nm
Detector range	300 - 400 nm
Lens material	Quartz Sapphire optional
Measurement principle	Ultraviolet fluorescence
Measurement interval	1 second, adjustable
Measurement range (adjustable)	Common range: 0-30 ppm 0-100 ppm 0–500 ppm *If exceeding 500 ppm, a dilution device must be additionally installed.
Accuracy	±3% FS
Probe surface material	SS316L titanium (optional)
Weight	0.8 kg
Size	Length: 150 mm Diameter: 38 mm
Protection level	IP68
Power consumption	0.5 W
Voltage range	10 – 32 VDC
Communication interface	Modbus RTU
Maintenance	It varies depending on the application, typically ranging from one week to three months.
Pressure	Less than 6 bar
Temperature	0 – 55 °C

Transmitter specifications

Voltage	230 VAC (90-260 VAC) Maximum power consumption: 15 W
Screen display	LCD touch screen: 240 x 128 resolution
Ambient temperature	-10 to 45 °C
Weight	1.35 kg
Installation specifications	5 mm aperture and guide rail
Shell	Polycarbonate, 235 mm x 185 mm x 119 mm Protection rating IP65
Input	1-channel analog input (probe) 2-channel pulse input, PNP or NPN optional (static available), switching current 6A 2-channel digital input (static), non-isolated connection, switching current 6A
Output	2-channel analog output, (4-20 mA) 2-channel relay output, 24 VDC / 0.5 A (resistive load) 2-channel relay output, 230 VAC / 2 A (resistive load) or 24 VDC / 6 A (resistive load)
Communication interface	RS-232 RS-485 Profibus