Beckman DU640 is the full featured scanning UV/Vis spectrophotometer with a stable beam optical design with an extended wavelength range from 190 to 1100 nm and bandpass of 1.8 nm.
Specifications
Wavelength Range 190 to 1100 nm
Wavelength Setability 0.1 nm increments
Wavelength Accuracy ± 0.2 nm
Wavelength Repeatability ± 0.1 nm
Spectral Bandwidth ¡Ü 1.8 nm
Photometric Readout - 0.300 to 3.000 A or 0.0 to 200.0% T
Photometric Accuracy ± 0.005 A
RMS Noise < 0.0002 A RMS
Stray Light < 0.05% T
Stability < 0.003 A/hr
RMS Baseline Flatness ± 0.001 A
Scanning Speeds 120, 240, 600, 1200, 2400 nm/minute
Data Collection Rate 20 samplings/second