TEL:+86 0571-28993551
Special Parameter Online Monitoring Instrument
OIL in Water Online Analyzer
product details

Model: Oil-8000


Monitoring method


Use ultraviolet fluorescence method to measure the concentration of oil molecules in water.


Measurement Principle


Oil-8000 – OIL in Water Online analyzer is specially designed for measuring oil (hydrocarbon) concentration in water. The instrument uses ultraviolet fluorescence method to measure the concentration of oil molecules in water. Oil molecules are activated into an excited state under specific ultraviolet light. This excited state is very unstable and will return to the ground state soon. In the process of returning to the ground state, radiation fluorescence will be produced, and the concentration of oil molecules in the water sample is proportional to the intensity of radiation fluorescence emitted. The water sample is sent to the colorimetric tank after the pretreatment device. The light source is parallel to the oil molecules in the colorimetric tank water sample, and the resulting fluorescence is irradiated on the fluorescence sensor. Before the ultraviolet light is emitted and the fluorescence sensor is received, an accurate filter system is installed to control the emission wavelength of ultraviolet light and select the specific fluorescence wavelength scattered back by the received oil molecules. The received fluorescence intensity corresponds to the concentration of oil in the water sample to a certain extent, and the linear relationship can be made clearer by the selection and control of the transmission and reception wavelength of the filter light system.


Technical Specifications


Measuring range: 0-5/10/50ppm(customizable);
Measurement method: ultraviolet method;
Lower limit of measurement: 0.03ppm;
Accuracy: ±10%;
Repeatability: ±5%;
Response time: 10s;
Test mode: timing, equal interval, manual;
Maintenance mode: self-maintenance, user maintenance interval >5 months;
Self-monitoring: self-diagnosis of instrument status;
Analog output: 4– 20mA analog output;
Relay control: 2 24V 1A relay high and low point control;
Data transmission mode: RS232, RS485;
Display: 8.0-inch LCD touch screen, resolution 800×600;
Data storage: one year of valid data;
Operating temperature: +0 ~ 40°C;
Power supply: 220 ±10% VAC; 50-60Hz;
Power consumption: approximately 100 VA;
Size: 530×1340×390mm;
Weight: approximately 45KG.


Performance and Features


· Advanced UV fluorescence measurement technology, on-line monitoring results are stable and reliable;

· The water sample pretreatment device adopts maintenance-free design, which can ensure that the maintenance cycle of the pretreatment device exceeds half a year.

· The unique non-contact sampling eliminates the contamination of water samples to the sampling device and prolongs the service life of the instrument;

· Intelligent data processing can automatically eliminate the abnormal mutation value caused by instrument failure, so that the measurement data is more accurate;

· The overall structure of the instrument is convenient for user maintenance and suitable for working under harsh conditions.

· On-line monitoring methods are diversified, which can realize manual measurement at any time, automatic timing measurement, automatic periodic measurement and other measurement methods;

· The data transmission has a variety of signal output such as RS232RS485-20mA, and visually displays the oil concentration mg/L value;

· No chemicals, consumables, no pollution, truly environmentally friendly;

· Automatic and manual multi-point calibration, convenient for users to set flexible automatic calibration operation according to different water samples;


Practical Application


River and lake surface water environment monitoring

Marine water quality environmental monitoring

Vessel and naval vessel sewage discharge monitoring

Industrial sewage discharge and municipal sewage inlet monitoring

Petrochemical wastewater discharge monitoring

Steam boiler condensate recovery system monitoring

Cooling water system monitoring

Seawater desalination plant inlet monitoring

Oil field reinjection water quality monitoring

Drinking water, pure water oil monitoring