Shen ChangHongShen ChangHong

Be a high value laboratory analytical
Instrument supplier in China

中文 / English

0755-26450374 / 400-103-6336

Everyday8 : 30--18 : 00, technical business consulting

Strategic cooperation system of industry, university and research

The core competitiveness of shenzhen changhong technology co., ltd. (hereinafter referred to as "shenchanghong") is to have a very professional technology research and development, product development team,
The team is composed of a group of experienced talents with high educational background and middle and high professional titles. "shenchanghong" has successively worked with many well-known experts from the department of chemistry, zhengzhou university, the department of environmental engineering, chinese academy of sciences and other domestic research institutes
With the cooperation of professors, many high-level scientific and technological achievements have been successfully transformed, which has made fruitful contributions to the development of water quality analysis in china.
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R & d investment planning
Annually with15%Increase progressively

At the moment when the country vigorously carries out pollution control work and advocates environmental protection and ecology, environmental water quality has a broad market space, and the market demand for environmental testing instruments will continue to release. the company actively participates in the integration with the government to provide more high-quality instrument solutions for environmental protection work.2020In, the factory building area of the company was expanded again1000Square meters, r & d investment every year15%Increase progressively. in the production of new products, more investment will be made to enhance the r & d strength of the r & d team and increase the r & d and upgrading of product series.

R & D Team

"shenchanghong" r & d team members are from beijing municipal engineering research institute, huawei, huaxia and other large-scale technology enterprises,
With more than 20 years of experience in the intelligent hardware and software industry, responsible for the research, development and maintenance of the company's testing instrument software.
  • R & D Team
  • R & D Team
  • R & D Team
  • R & D Team
  • R & D Team

Core achievements display
Innovation drives technology leap forward

"shenchanghong" attaches great importance to technological innovation and is committed to providing users with high-precision instruments and expert services. at present, the company has a strong r & d team in shenzhen and zhengzhou, and has obtained many patents, as well as quality management system and environmental management system certificates. "shenchanghong" independent research and development of multi parameter water quality testing machine is a major breakthrough in the field of water quality analysis and testing.

More achievements
  • Design Patent - Digestion Instrument

    Design Patent - Digestion Instrument

  • Design Patent - Water Quality Tester

    Design Patent - Water Quality Tester

  • Design Patent - Water Quality Colorimeter

    Design Patent - Water Quality Colorimeter

  • Software Copyright Certificate - Portable Water Quality Meter

    Software Copyright Certificate - Portable Water Quality Meter

  • Software Copyright Certificate - Dissolved Oxygen Meter

    Software Copyright Certificate - Dissolved Oxygen Meter

  • Software Copyright Certificate - Deconstructor

    Software Copyright Certificate - Deconstructor

  • Software Copyright Certificate - Eight Channel Water Quality Tester

    Software Copyright Certificate - Eight Channel Water Quality Tester

  • Software Copyright Certificate - Portable COD Tester

    Software Copyright Certificate - Portable COD Tester

  • Software Copyright Certificate - Turbidity Colorimeter

    Software Copyright Certificate - Turbidity Colorimeter

  • Software Copyright Certificate - Four Channel Heavy Metal Analyzer

    Software Copyright Certificate - Four Channel Heavy Metal Analyzer

  • Software Copyright Certificate - COD Tester

    Software Copyright Certificate - COD Tester

R & D quality process control

1. Market research: Conduct market research on customer needs of project products, including technical indicators and demand for parameters.

2. Feasibility study report: Analyze the social and economic efficiency indicators of the project.

3. Write a project requirements task book: propose various comprehensive indicators and individual indicators.

4, system design: the overall layout of each module function.

5. Project decomposition: assigned to R&D personnel of various professions.

6, prototype production and acceptance.

7, small batch production.


1. Import of imported components


2. Detection of electronic components


3. Put into production


4. Aging


5. Calibration


6.QC confirmation




Adopting the electronic components of Nasdaq Company of the United States, each electronic component is tested and passed into production; after the instrument is produced, it is aging, and the products that have passed the aging process enter the laboratory for calibration, and the qualified instruments will be used. The environmental protection standard liquid will be confirmed by QC, and the products that meet the requirements of QC can be shipped.


According to the detection limit of the national standard and industry standard related to the test project, the measurement range, a series of standard solutions are set, and then the instrument is calibrated according to Lambert Beer's law: A=lg(1/T)=Kbc.


A is the absorbance, T is the transmittance (transmittance), and is the intensity of the emitted light (I) than the intensity of the incident light (I0).


K is the molar absorption coefficient. It is related to the nature of the absorbing material and the wavelength λ of the incident light.


c is the concentration of the light absorbing substance in mg/L, and b is the thickness of the absorbing layer in cm