753B Microcomputer based UV visible spectrophotometerDetailed product description：

The 753B microcomputer UV visible spectrophotometer can determine the qualitative and quantitative analysis of substances in the UV and visible light regions Widely used for qualitative and quantitative analysis of substances in chemical engineering, printing and dyeing, commodity inspection, medical research, environmental protection, and other fields, it has a wide range of applications in factories, research institutions, and universities.

Main Features
Control the measurement process with a microprocessor, perform digital operations and display, with convenient operation, allowing for direct reading of luminosity, absorbance, and concentration;
Automatically adjust the dark current and reference signal by the microcomputer within a certain range;
Equipped with automatic correction function for colorimetric dish pairing errors, it can improve comprehensive accuracy and usage efficiency;
Adjusting 100% T with an optical wedge can maintain the same spectral bandwidth;
The grating monochromator has uniform dispersion rate, linear wavelength division, and high wavelength accuracy;
The filter automatically enters the optical path, eliminates spectral order overlap and stray light;
Adopting a modular combination structure, it is easy to install, adjust and maintain.

technical indicators
Working band: 200-800nm
Monochromator: C-T type grating monochromator
Wavelength indication: Three digit mechanical counter (division 0.2nm/grid)
Wavelength accuracy: ± 0.5nm
Spectral bandwidth: 2, 4, 6nm

measurement range
Transmittance T: 0-200.0 (%) digital display
Absorbance A: -0.301-3.000 digital display
Measurement accuracy: ± 0.5% T
Measurement repeatability: 0.5% T

stability
Photocurrent: ± 0.5% (three minutes)
Dark current: 0.2% T (three minutes)