Model UV1900 Double Beam UV/VIS Spectrophotometer
Characteristics/Features
UV1900 is a double-beam UV/VIS Spectrophotometer with a scanning function, wider range of spectrum and the highest quality components. Due to its built-in micro-computer system, plus excellent optical and electric circuit system, rational mechanical structure and a large LCD display screen, the instrument is effective and useful for lab analysis in industries.
UV1900 UV/VIS Spectrophotometer is very easy to learn and the user-menu on the large LCD screen allows every item to be chosen and accepted corresponding to each operational step.
It's very simple to replace the lamp: after loosening a few screws, the lamp will be at the optimal position without complicated light-adjustment.
UV1900 is protected by software program to restore the instrument to normal work status in case of a power failure.
Being an excellent practical UV/VIS spectrophotometer, UV1900 provides fast and simple analytical methods to be widely used in organic, inorganic, petroleum, pharmacy, environment, bio-chemistry, medicine, food and other national economy departments for QC and QA.

Specifications
Wavelength range 190-1100nm
Wavelength accuracy ±0.3nm
Wavelength Repeatability ≤0.2nm
Range of Transmittance 0~999%T
Range of Absorbability -3.000~3.000A
Transmittance Accuracy ±0.3%T
Transmittance Repeatability ≤0.1%T
Drift <=0.0004A/h(2 hours after turn-on, at 500nm)
Straightness of Base Line ≤±0.001A(200~1100nm)
Stray Light ≤0.02% (220nm NaI solution,340nm NaNO2)
Noise 100%Line Noise =0.3T;0% Line Noise=0.1%T
Scanning Speed Fast Middle Slow
Spectrum Bandwidth 1 nm
Dimensions 22.5"×16.5"×9"
Weight 55 lb