Overview
The YUE FENG 770 UV-Visible Spectrophotometer is a high-performance analytical instrument that uses a 7-inch color touch LCD display and proportional dual beam of light to monitor the optical path structure. It is equipped with a blazing Holographic grating and a high-resolution monochromator to ensure outstanding Measurement accuracy, accuracy, reproducibility and Stability. It supports automatic adjustment of "0" and "100", eight Sample chamber linkage, as well as advanced functions such as full-band scanning, sub-band scanning, and kinetic time scanning. It is suitable for 190~ 1100nm Wavelength range.
Features
1. Adopt 7-inch color touch LCD display, flexible and convenient operation
2. Proportional dual beam of light monitoring optical path structure, high performance, low stray light "Holographic grating", high resolution monochromator
3. Automatic adjustment of "0" and "100", eight Sample chamber linkage
4. Support full-band scanning, sub-band scanning, dynamic time scanning, GOTO lambda, linear regression, concentration direct reading, peak and valley detection and other advanced functions
5. Connect the printer for data printing and Linear dispersion printing
6. Professional power-off protection, memory test data, scan maps, regression equations and instrument correction values
7. High-energy long-life flange positioning deuterium lamp, easy to replace, no need for optical path adjustment
Principle
Based on the proportional double beam of light structure, the instrument separates the light emitted by the Illuminant (tungsten halogen lamp and deuterium lamp) into monochromatic light by blazing Holographic grating and monochromator. After the sample absorbs the light of a specific wavelength, the Detector measures the transmitted light intensity, calculates Absorbance or light transmitance, and realizes Light spectrum analysis and concentration measurement.
Applications
Chemical analysis, biological testing, environment monitoring, drug development, materials science
Standards
Wavelength Precision +/- 0.5nm, Wavelength Repeatability ≤ 0.2nm, Luminosity Precision +/- 0.5% T, Luminosity Repeatability ≤ 0.2% T, Stray Light ≤ 0.15% T@220nm, 360nm, Noise Level 100% (T) ≤ 0.2% (T) and 0% (T) ≤ 0.1% (T), drift ≤ 0.0009A/0.5h@250nm, 500nm, Ambient Temperature 5 ℃~ 35 ℃ and Humidity ≤ 85%
Steps
1. Boot initialization, the instrument automatically enters the test state
2. Use Touchscreen to set Measurement parameters such as wavelength and function mode
3. Place samples in eight Sample chambers
4. Perform automatic adjustment of "0" and "100" operations
5. Select desired functions such as scanning or concentration measurement
6. View the results, optionally connect the printer to output data
Notice
• Ensure that the Ambient Temperature is between 5 ° C and 35 ° C, and the Humidity does not exceed 85%
• Pay attention to positioning when replacing deuterium lamps to avoid light path adjustment
• Check Wavelength and Luminosity Precision Before Use
• Avoid direct light or vibration affecting measurement Stability
Periodically calibrate instruments to ensure performance
