This instrument can be widely used in industries such as medicine and health, clinical testing, biochemistry, petrochemicals, environmental protection, quality control, judicial investigation, inspection, quarantine, forestry, geological exploration, food testing, etc. It is one of the analytical instruments reused in physical and chemical laboratories.
Product Features
1. Digital display measurement indication.
2. Automatic zero and hundred adjustment.
3. The spacious sample chamber can accommodate 5-100mm colorimetric dishes.
4. Optional output port RS232, capable of connecting to printers and computers.
5. Adopting original imported tungsten lamps to ensure the service life of the instrument.
6. The instrument adopts the latest microcomputer processing technology and is easy to operate.
7. Automatic light gate ensures the service life of the photoelectric sensor and simplifies instrument testing.
Technical Parameters
| Instrument Name |
Essential Visible Spectrophotometer |
Instrument model: LS722N
Optical system: achromatic (1200/mm grating)
Wavelength range: 320-1020nm
Wavelength accuracy: ± 2nm
Spectral bandwidth: 4nm
Wavelength repeatability: ≤ 0.5nm
Transmittance accuracy: ± 0.5% T
Stability: ± 0.002A/h @ 500nm
Drift: ≤ 0.1% T
Noise: ≤ 0.2% T
Working mode: T, A, C
Zero adjustment method: automatic
Weight: 8kg
Output method: printer
Light source: imported tungsten lamp
Printing interface: optional
Luminous range: 0-200% T, -3-3A, 0-9999C
Instrument model: LS722
Optical system: achromatic (1200/mm grating)
Wavelength range: 320-1020nm
Wavelength accuracy: ± 2nm
Spectral bandwidth: 5nm
Wavelength repeatability: ≤ 1nm
Transmittance accuracy: ± 0.5% T
Stability: ± 0.004A/h @ 500nm
Drift: ≤ 0.1% T
Noise: ≤ 0.2% T
Working mode: T, A, C
Zero adjustment method: automatic
Weight: 8kg
Output method: printer
Light source: imported tungsten lamp
Printing interface: optional
Luminous range: 0-200% T, -3-3A, 0-9999C
Instrument model: LS721-100
Optical system: achromatic (1200/mm grating)
Wavelength range: 350-1020nm
Wavelength accuracy: ± 2nm
Spectral bandwidth: 6nm
Wavelength repeatability: ≤ 1nm
Transmittance accuracy: ± 1% T
Stability: ± 0.004A/h @ 500nm
Drift: ≤ 0.2% T
Noise: ≤ 0.3% T
Working mode: T, A, C
Zero adjustment method: automatic
Weight: 8kg
Output method: No
Light source: Domestic tungsten lamp
Printing interface: optional
Luminous range: 0-200% T, -3-3A, 0-9999C
Sample rack: Standard 10CM sample rack
Instrument model: LS721
Optical system: achromatic (1200/mm grating)
Wavelength range: 350-1020nm
Wavelength accuracy: ± 2nm
Spectral bandwidth: 6nm
Wavelength repeatability: ≤ 1nm
Transmittance accuracy: ± 1% T
Stability: ± 0.004A/h @ 500nm
Drift: ≤ 0.2% T
Noise: ≤ 0.3% T
Working mode: T, A, C
Zero adjustment method: automatic
Weight: 8kg
Output method: No
Light source: Domestic tungsten lamp
Printing interface: optional
Luminous range: 0-200% T, -3-3A, 0-9999C
Sample rack: Comes standard with a 1CM sample rack
Company Profile
Resound Photoelectric Technology Research Institute (LSRPTR)
Resound Photoelectric Technology Research Institute (LSRPTR), also known as Resound Research Institute, is affiliated with China Haiheng International Trade Group Co., Ltd. (CHHGC). As an investment attraction enterprise in Zhongyuan Science and Technology City and a construction unit of the Zhongyuan Aurora Laboratory, the institute is committed to the industrialization of scientific and technological achievements, guided by market demand.
Technical Cooperation
Resound Research Institute has established technical cooperation with numerous well-known domestic and foreign universities, research institutes, and enterprise platforms, including:
Tsinghua University
Lanzhou University
Zhengzhou University
Altai State Technical University of Russia
Northwestern Polytechnical University
Chinese Academy of Engineering
Henan Academy of Sciences
China Electronics Technology Group
CGN Group
Xiamen University
Henan University
National University
University of Electronic Science and Technology of China
Chinese Academy of Sciences
China Academy of Engineering Physics
China Shipbuilding Group
China Electronics Group
Henan Inspection Group
Research and Development Fields
* Applications of Micro-Electromechanical and Lithography Technology
* Optoelectronics and Spectroscopy Technology
* High-Power Laser and Device Preparation Technology
* Nuclear Instrument and Emergency Equipment System Applications
Introducing Advanced Technologies and Products
Resound Research Institute continuously introduces advanced new technologies and products in industrial application scenarios such as market supervision, public safety, environmental monitoring, and science, education, research, and production. This has led to the formation of a domestically produced high-end scientific equipment industry base that integrates design, research and
development, production, sales, and services. This base drives the iteration of downstream industry technology, enhances the transformation and industrialization level of scientific and technological achievements, and provides technological sources for innovative development.
Audited Supplier 
){kind=link}