The semi-automatic and fully automatic infrared spectrophotometer produced by Tianjin Nengpu Technology Co., Ltd. is a specialized analytical instrument for measuring oil in water, widely used in environmental monitoring systems, petrochemical, environmental and water monitoring stations, environmental protection departments of petroleum and chemical enterprises, machinery, mining, electronics industries, ports, oil fields, sewage treatment plants, water treatment plants and other research fields.

1、 Suitable standards:

National Standards of the People's Republic of China“HJ637-2018Water quality - Determination of petroleum, animal and vegetable oils - Infrared photometric method

2、 Technical principle:

According toHJ637-2018Standard: Extract oil substances from water using extraction solvents, determine the total extract, adsorb the extract with magnesium silicate, remove polar substances such as animal and vegetable oils, and then determine petroleum. The total extract and petroleum content were calculated based on the absorbance A2930, A2960, and A3030 at spectral bands with wave numbers of 2930 cm-1 (stretching vibration of C-H bond in CH2 group), 2960 cm-1 (stretching vibration of C-H bond in CH3 group), and 3030 cm-1 (stretching vibration of C-H bond in aromatic ring), respectively. The content of animal and vegetable oils is calculated based on the difference between the total extract and petroleum content.

3、 Main technical indicators:

Detection limit: 0.02mg/L (measure 11 times blank and calculate 3 times standard deviation);

Wave number range: 3400cm-1 to 2400cm-1 (i.e. 2941nm to 4167nm);

Range of absorbance: 0.0000-2.0000 AU (i.e. transmittance of 100-1% T);

Minimum detectable concentration: 0.001mg/L (enrichment extraction method);

Maximum measured concentration: 10000mg/L (diluted measurement);

Instrument measurement range: （0.05～100）mg/L；

Repeatability: RSD ≤ 1% (11 measurements of 20-100mg/L oil standard sample);

Measurement accuracy: error<± 5%;

Correlation coefficient: R>0.999；

Net weight of the host: 13kg;

Main body dimensions: 450mm × 350mm × 130mm;

4、 Main instrument features:

Controlled by Windows XP and Windows 7 operating systems;

L has the function of measuring instrument calibration coefficient;

Adopting advanced industrial serial port technology;

The true three wavenumber and infrared three wavenumber spectra are clear and accurately calibrated, and can clearly display the absorption spectra and absorbance generated by the three wavenumbers;

Automatically adjust the wavelength positioning of methylene 2930cm-1 in the instrument to achieve accurate measurement;

Using high-performance pyroelectric infrared detectors to accurately collect the signal of pyroelectric current formed in the circuit when the halogen lamp is turned on and off;

Good correlation coefficient, measuring 0.5-5 mgL, R>0.999。

5、 National standards implemented

Measurement of environmental monitoring stations, domestic sewage, and industrial wastewater

GB8978-1996 Comprehensive Wastewater Discharge Standard

Food and beverage industry oil fume monitoring unit

GB18483-2001 Emission Standards for Cooking Fumes in the Catering Industry

Municipal drainage testing station or sewage treatment plant

GB18918-2002 Pollutant Discharge Standards for Urban Sewage Treatment Plants

Urban water supply company or water supply company

GB3838-2002 Surface Water Environmental Quality Standards

Petroleum and petrochemical enterprises

GB3551-83 Emission Standards for Water Pollutants in Petroleum Refining Industry

Railway Environmental Monitoring Station

GB5469-85 Railway Freight Car Washing Wastewater Discharge Standard

Environmental monitoring station for thermal power plants

GB8978-1996 Comprehensive Wastewater Discharge Standard and Other Standards

Monitoring of wastewater in the smelting industry

GB13456-92 Emission Standards for Water Pollutants in the Iron and Steel Industry

Monitoring of water quality in marine fisheries

GB3097 Marine Water Quality Standards and GB11607 Fishery Water Quality Standards

Hydrological Environment Monitoring Station

GB3838-2002 Surface Water Environmental Quality Standards

Agricultural Product Quality Supervision and Inspection Center, Agricultural Forestry Environmental Monitoring Station

GB4284-84 Control Standards for Pollutants in Agricultural Sludge

6、 Instrument storage and usage conditions:
1) Normal environmental conditions for instrument use
1. Environmental temperature: 10 ℃~35 ℃
2. Relative humidity not exceeding 80%
3. The instrument should be placed in a laboratory that is free of corrosive gases, strong electromagnetic interference, well ventilated, and dust-free.
4. Power supply: (220 ± 22) V AC 50Hz
5. Areas with unstable power supply should be equipped with regulated power supply.
6. The power supply should be well grounded.

2) Transportation and Storage
1. The product should be stored at a temperature of 5-35 ℃ and a relative humidity not exceeding 80% under its original packaging conditions.
2. During transportation, instruments should avoid strong vibrations and collisions.

7、 Precautions for using the instrument:
1. The instrument should be preheated for 30 minutes before measurement.
2. The CCl4 used in the oil analyzer should be of analytical purity or above and purified by activated carbon filtration or distillation. It can only be used after being verified as qualified by the instrument. The verification method can refer to the relevant parts of this manual.
3. When operating the instrument, experimental gloves should be worn, ventilation facilities should be turned on, and air circulation should be maintained to prevent the volatilization of carbon tetrachloride from causing damage to the human body,.
4. The optical components of lighting should be avoided from being touched by human hands and dust contamination should be avoided as much as possible. If the optical mirror is stained with fingerprints or dust, it can be rinsed with anhydrous alcohol or acetone under the guidance of technicians. For gratings, this cleaning method is not possible and requires professional maintenance.
5. If any abnormal phenomena are found during the operation, the power supply of the instrument host and microcomputer can be turned off, and then restarted to work.

8、 After sales service:

One year warranty period: Under normal use and storage by the user, within 12 months from the date of acceptance, if the product cannot work normally due to quality problems, the manufacturer will repair or replace the product for the user free of charge; After the warranty period ends, we guarantee a 10-year supply of accessories and reagents. And ensure lifelong maintenance of the instrument. The company has established a comprehensive networked information management platform to ensure that every instrument sold has quality tracking services.

Professional after-sales service engineers provide free on-site installation, debugging and training, and can provide users with a comprehensive solution for the oil testing process, including all problems encountered from sample sampling, extraction, analysis and measurement to instrument use.

Energy Spectrum Technology is a diversified high-tech enterprise dedicated to the research, development, production, and sales of Fourier transform infrared spectrometers, infrared oil analyzers, and dust free silica analyzers; Whether for routine examinations or for cutting-edge scientific research, you will definitely find the ideal tool that suits you here.