Basic principle of infrared spectroscopic oil tester
When a monochromatic light passes through the measured solution, its energy will be absorbed. The intensity of light absorbed is proportional to the concentration of the measured substance, which accords with Lamberbeer's law: A=log (1/T) = log (I0/I) = a × b × c
Meet the standards
Meet the national standard: "HJ637-2018 Determination of Petroleum and Animal and Vegetable Oils in Water Quality by Infrared Spectrophotometry"
Meet the national standard: "GB/T 16488-1996 Determination of petroleum and animal and vegetable oils by infrared spectrophotometry"
Meet the national standard: "GB3838-2002 Surface Water Environmental Quality Standard"
Comply with the national standard: "GB18483-2001 Oil Fume Emission Standard for Catering Industry"
Meet the national standard: "GB18918-2002 Pollutant Discharge Standard for Urban Sewage Treatment Plant"
Application range of instrument
The instrument is mainly used to measure the oil content in surface water, groundwater and industrial wastewater, and can also be used to monitor the oil content in flue gas and solid of catering industry. This instrument is a professional instrument for measuring oil content in water, gas and solid.
Wide application industry
Environmental monitoring systems of various departments, testing rooms and laboratories of large and medium-sized enterprises such as petrochemical industry, hydrology and water conservancy, tap water, sewage treatment plants, thermal power plants, iron and steel enterprises, scientific research and teaching in colleges and universities, agricultural environmental monitoring, railway environmental monitoring, automobile manufacturing, marine environmental monitoring, traffic environmental monitoring and environmental scientific research.
Functional characteristics
High accuracy: The error of each measurement is less than 2% (40 cameras/L)
The baseline drift is less than 0.005 AU/60min
Electrically modulated light source to improve the reliability of instrument
Automatic adjustment of zero point, automatic adjustment of instrument fullness value
The instrument uses RS232 or USB2.0 interface, which is convenient to connect with computer
It has the functions of mathematical statistics, spectrogram display, storage and printing, etc.
It has the function of measuring the calibration coefficient of instruments
It has direct reading function of non-dispersive measurement results without conversion
Can test the purity of carbon tetrachloride
Other non-chlorinated organic solvents such as S-316, tetrachloroethylene and trichlorotrifluoroethane can be used as extractant
Technical parameters
The baseline drift is less than 0.005 AU/60min
The concentration of Zuidi was 0.002 mg/L (oil concentration in water)
Maximum measured concentration: 64000mg/L (oil concentration in water)
Wavenumber range: 3400cm-1 ~ 2400cm-1 (2940nm ~ 4167nm)
Wavenumber accuracy: ± 2cm-1
Wavenumber repeatability: ± 2cm-1
Absorbance range: 0.00000 ~ 3.00000 AU
Basic measurement range: 0.20 ~ 100.00 mg/L;
Repeatability: RSD < 2% (20 ~ 40mg/ml standard oil sample)
The linear correlation coefficient R > 0.999
Methyl resolution > 3%
Sample analysis time: full spectrum scanning: 30 seconds
Fixed point multiple scans: 10 seconds
Non-dispersive infrared method: 2 seconds
Blank solvent zeroing: automatic
Main engine size: 470mm (length) × 330mm (width) × 150mm (height)
Main engine weight: 10Kg
Main engine power supply: 220VAC, 50Hz
Normal working environment conditions of instruments
The power supply is required to be stable, and it is recommended to connect with 1-5KW electronic AC stabilized power supply
The room temperature is 5-35 ℃ and the relative humidity is 20% ~ 85% (RH)
No violent vibration, no strong electromagnetic field interference, no corrosive gas
A well-ventilated laboratory
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