Overview
The L3 visible spectrophotometer is an analytical instrument of the SHANGFEN brand. It adopts a professional proportional monitoring dual beam of light optical path system and low noise circuit design to ensure the Reliability and Stability of the instrument. The instrument can meet the needs of a wide range of applications from daily analysis to scientific research.
Features
1. Adopt professional optical, mechanical and electrical design, stable performance and high cost performance.
2. Equipped with an 8-inch color touch LCD display, it is flexible and convenient to operate.
3. Adopt proportional monitoring dual beam of light optical path structure, configure high-performance "Holographic grating" monochromator, with low stray light, high resolution characteristics, Optical inspection accuracy, measurement accuracy, reproducibility and Stability outstanding.
4. With unique automatic adjustment "0%" and "100%" functions, as well as automatic 8-pool Colorimetric dish holder.
5. With dynamic time scanning, GOTO lambda, linear regression, concentration direct reading, peak and valley detection and other advanced functions.
6. Optional thermal plotter for data printing, fixed wavelength time scanning, linear regression and other Linear dispersion rendering.
7. With USB interface, it can interact with PC, strengthen data processing function, realize mass storage of test documents, and provide convenience for user secondary development.
8. Equipped with professional power-off protection measures, it can memorize test data, scan patterns, regression equations, and instrument correction values, etc., to achieve fast boot initialization and enter the test state.
Principle
The L3 visible spectrophotometer works based on a proportional monitoring dual beam of light optical path system. The composite light emitted by the light source is separated by a monochromator (using a Czerny-Turner structure and a high-performance blazing Holographic grating) and becomes monochromatic light. The monochromatic light is divided into a sample beam of light and a reference beam of light, which pass through the sample cell and the reference cell respectively. The Detector receives and compares the intensity signals of the two beams of light, processes it through the circuit system, and finally calculates the transmittance (T) or Absorbance (A) value of the sample, thus realizing quantitative analysis.
