YJ-637E Fully Automatic Infrared Spectrophotometric Oil Analyzer

The basic principle of the fully automatic infrared spectrophotometric oil analyzer is that when monochromatic light passes through the sample solution, its energy is absorbed. The degree of light absorption is proportional to the concentration of the substance being measured, in accordance with the Lambert-Beer law: A=log(1/T)=log(I0/I)=a×b×c. It complies with national standards including: HJ 637-2018 "Water Quality - Determination of Petroleum and Animal and Vegetable Oils by Infrared Spectrophotometry", "GB3838-2002 Environmental Quality Standards for Surface Water", "GB18483-2001 Emission Standard for Cooking Fumes", and "GB18918-2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants". This instrument is primarily used for measuring oil content in surface water, groundwater, and industrial wastewater, as well as for monitoring oil in fumes from the catering industry and oil content in solids. It is a professional instrument for measuring oil content in water, gas, and solids. It is also suitable for environmental monitoring systems in various sectors, petrochemicals, hydrology and water resources, tap water, wastewater treatment plants, thermal power plants, steel enterprises, university research and teaching, agricultural environmental monitoring, railway environmental monitoring, automotive manufacturing, marine environmental monitoring, transportation environmental monitoring, environmental research, and testing laboratories in large and medium-sized enterprises.

I. Instrument Features:

1. Can simultaneously measure oil content in liquids, solids, and gases

2. High accuracy: measurement error does not exceed ±1.5%

3. Baseline drift less than 0.005AU/60min

4. Opto-mechatronic design with electrically modulated light source, improving instrument reliability

5. Automatic zero adjustment and automatic full-scale calibration

6. Equipped with RS232 or USB2.0 interface for easy connection to a computer

7. Features mathematical statistics, spectral display, storage, printing, and other functions

8. Capable of calibrating the instrument's correction coefficient

9. Direct reading of non-dispersive measurement results without conversion

10. Can test the purity of carbon tetrachloride

11. Can use S-316, tetrachloroethylene, or other non-chlorinated organic solvents as extraction agents

II. Technical Specifications:

1. Baseline stability: automatic zero adjustment (eliminates baseline drift effects)

2. Minimum detection concentration: 0.0008mg/L (oil concentration in water)

3. Maximum measurement concentration: 98,000mg/L (oil concentration in water)

4. Wavenumber range: 3400cm?1 to 2400cm?1 (2940nm to 4167nm)

5. Wavenumber accuracy: ±1cm?1

6. Wavenumber repeatability: ±1cm?1

7. Absorbance range: 0.00000 to 4.00000AU, adjustable in 4 ranges

8. Basic measurement range: 0 to 1000.00mg/L (no dilution required, adjustable via software)

9. Repeatability: relative standard deviation RSD < 0.6% (for standard oil samples with concentrations of 20–40mg/mL)

Linear correlation coefficient R > 0.999

10. Methyl resolution > 2%

Sample analysis time: Full spectrum scan: 30 seconds

Fixed-point multiple scans: 10 seconds

Non-dispersive infrared method: 2 seconds

Blank solvent zeroing: Automatic

Ambient temperature: 5°C to 35°C

Relative humidity: 20% to 80%

11. Instrument uses USB2.0 or USB3.0 interface, software compatible with Win8.1 and Win10 operating systems

12. Main unit dimensions: 470mm (length) × 330mm (width) × 150mm (height)