LH-S700 UV Visible spectrophotometer Introduction: The LH-S700 UV Visible spectrophotometer is an intelligent full band analytical instrument with a wavelength range of 190-1100nm. It meets the requirements of the JJG178-2007 Verification Regulations for UV Visible and Near Infrared Spectrophotometers, which are not lower than Level II standards. It has functions such as photometric measurement, quantitative measurement, dynamic analysis, wavelength scanning, multi wavelength testing, and multi parameter testing. It can be used as both a UV Visible spectrophotometer and a multi parameter water quality analyzer. characteristic: 1. Complies with the Level 2 requirements of the "JJG-178-2007 Verification Regulations for Ultraviolet, Visible, and Near Infrared Spectrophotometers" and meets the testing needs of various fields; 2. 190nm-1100nm full band scanning, with adjustable parameters such as scanning speed, interval step size, scanning frequency, and measurement indicators. It supports peak and valley marking, spectral area calculation, and other functions; 3. Multi wavelength measurement can add 1-8 wavelengths, each of which can be edited for wavelength, K value, calculated absorbance value, and curve formula; 4. Luminescence measurement can quickly adjust the wavelength to measure absorbance, transmittance, and energy values; 5. Quantitative analysis supports users to create their own curves, which can be used to establish linear fitting, polynomial fitting (binomial, trinomial), exponential fitting, logarithmic fitting curves, and can be saved and directly called up next time; 6. Using time as the coordinate axis for dynamic scanning, a wavelength can be selected to continuously scan the sample and observe the trend of sample changes over time; 7. Built in multi parameter water quality detection function, 122 detection modes can be directly called, the instrument can be used as both a photometer and a multi parameter water quality analyzer; 8. The graph display is clear and supports free scaling, making it easy to visually view the trend of data changes; 9. The memory space is 16GB, which can store over 100000 pieces of data in Shanghai. Each functional data is saved independently and supports filtering, management, analysis, and export. Excel and PDF file formats can be saved; 10. Support one click wavelength calibration, manual zeroing, and dark current calibration, which can quickly adjust the optical path status of the instrument to ensure its accuracy and stability; 11. Imported tungsten/deuterium lamps, with independent switches for the light source that can be activated as needed, effectively extending the lifespan of the light source and reducing maintenance costs; 12. Socket type tungsten lamp/deuterium lamp, quick insertion and replacement of light source, no need for optical debugging, simpler equipment maintenance; 13. The screen brightness can be adjusted, with a screensaver function that supports 0-90 ° angle adjustment, making it easy for users to operate and providing clearer viewing angles, while also effectively protecting the screen; 14. Using Android architecture to build LHOS operating system, supporting multiple functions such as WIFI, Internet of Things, Chinese input, data filtering and analysis, making instrument use simpler and more intelligent; 15. Intelligent Internet of Things applications, supporting access to user owned databases or Lianhua Cloud for querying and big data applications, can remotely monitor and control instruments; 16. Real time protection monitoring of the system, hardware level detection of the system's operating status, saving records and performing automatic system recovery in case of abnormalities, supporting factory settings recovery and network update functions; 17. Built in operation assistance function, which allows users to view instruction manuals, quick start guides, and operation videos, making it easy for users to learn and use the instrument. The instrument supports multitasking and can be viewed at any time during the testing process; Technical parameters: 1. Photometric parameters Instrument name: UV Visible spectrophotometer Instrument model: LH-S700 Wavelength range: （190-1100）nm Spectral bandwidth: 2nm Equipment functions: photometric measurement, quantitative measurement, dynamic analysis, wavelength scanning, multi wavelength testing, multi parameter testing Wavelength repeatability: ≤ ±0.2nm(190-340nm);≤ ±0.5nm(340-1100nm) Automatic calibration: The instrument has an automatic calibration function Self checking function: The instrument has an automatic detection error alarm function Wavelength accuracy: ± 0.5nm (190-340nm); ±1.0nm(340-1100nm) Stray light: ≤ 0.2% (220nm, 360nm); ≤ 0.5%(420nm) Transmittance accuracy: ± 0.5% Transmission density repeatability: ≤ 0.2% Wavelength resolution: 0.1nm Baseline flatness: ≤ ±0.002A Instrument noise: ≤ 0.1% (transmittance 0%); ≤ 0.2% (transmittance of 100%) Data storage: 16GB (100000+entries) 2. Physical parameters Display: 10 inch capacitive touch screen, adjustable angle from 0-90 degrees Printing: Built in thermal printer Color comparison method: Four digit automatic color comparison, dish color comparison+tube color comparison Data transmission: USB Instrument weight: 16.7kg Dimensions: (504 × 370 × 211) mm 3. Environment and working parameters Environmental temperature: (5-40) ℃ Environmental humidity: Relative humidity ≤ 85% RH (without condensation) Rated voltage: AC220V ± 10%/50Hz Rated power: 80W
Introduction: The LH-S700 UV Visible spectrophotometer is an intelligent full band analytical instrument with a wavelength range of 190-1100nm. It meets the requirements of the JJG178-2007 Verification Regulations for UV Visible and Near Infrared Spectrophotometers, which are not lower than Level II standards. It has functions such as photometric measurement, quantitative measurement, dynamic analysis, wavelength scanning, multi wavelength testing, and multi parameter testing. It can be used as both a UV Visible spectrophotometer and a multi parameter water quality analyzer.
