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Model UV1900 Double Beam UV/VIS Spectrophotometer
Characteristics/Features
UV1900 is a double-beam UV/VIS Spectrophotometer with a scanning function. It has a wider range of spectrum and is very high quality. 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 will surely be effective and useful for lab analysis in industries.
UV1900 UV/VIS Spectrophotometer adopts a man-machine dialogue operation method that is very easy to learn.The usermenu on the large LCD screen allows every item to be chosen and accepted corresponding to each operation step. In this way, you can perform function you needed. Its very simple to replace the lamp,only a few screws and the lamp will be at the optimal position without complicated light-adjustment.
Instrument is designed to be protected by software program to restore the instrument to normal work status in case of a 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