α-1900 and 1900s Double beam UV/Visible spectrophotometer

Features：

1、With embedded computer and optimized optical system,convenient and easy to use

2、Large screen graphic LCD display with abundant instructions

3、Basic photometric mode、Quantitative analysis、Qualitative analysis、Kinetics test、DNA/Protein Test、 Multi-wavelength and Performance validation are available

4、Alternative fitting and correction methods for Quantitative analysis

5、Re-scaling axes、curve smoothing,combination,zooming and overlap 、1st to 4st derivative for Qualitative analysis

6、Enzyme reaction rate calculation for Kinetics

7、Data output by USB2.0 printer and U disk

8、Up to 1000 test data saved in local memory

9、LSI’s Windows-based PC application software takes more features

Specifications:       
Models 1900 1900S 
Wavelength Range 190 - 1100nm 190 - 1100nm 
Spectral Bandwidth 2nm  or 1nm 0.1,0.2,0.5,1,2,5nm Variable 
Optical System Double Beam &Czerny-Turner ；Grating 1200 line/mm Double Beam &Czerny-Turner ；Grating 1200 line/mm 
Wavelength Accuracy ±0.1 nm（656.1 nm D2）, ±0.3 nm（Whole wavelength range） ±0.1 nm（656.1 nm D2）, ±0.3 nm（Whole wavelength range） 
Wavelength Repeatability ±0.2nm ±0.2nm 
Wavelength Resolution 0.1nm 0.1nm 
Photometric Range -0.3 to 3A ;  0-200%T;  -9999 to 9999C -4 to 4A ;  0-200%T;  -9999 to 9999C  
Stray Lght ≤ 0.05%T （220 nm，NaI；340 nm，NaNO2） ≤ 0.01%T （220 nm，NaI；340 nm，NaNO2） 
Baseline Flattness ±0.001A ±0.001A 
Stability ±0.0006A/hr @500nm ,0A ±0.0006A/hr @500nm ,0A 
Photometric noise ±0.0003A ±0.0003A 
Data Output 320×240 Dots Array Graphic LCD 320×240 Dots Array Graphic LCD 
USB2.0 printer driver(Optional) USB2.0 printer driver(Optional) 
USB1.1 Connecting to computer USB1.1 Connecting to computer 
Size 760x 760x260 mm 760x 760x260 mm 
Weight 25kg 25kg