UV-Visible Spectrophotometer LB-21UVS Catalog

UV-Visible Spectrophotometer LB-21UVS is a light intensity measuring unit with wavelength range 195 nm ~ 1020 nm. Achromatic Czerny-Turner optical system and LED display for accurate analysis of samples.It is equipped with tungsten and deuterium lamp as a light source with manual wavelength setting providing flexibility in the positioning of reflector mirror.

Optical system	Achromatic Czerny-Turner (1200 L/mm grating)
Wavelength range	195 nm ~ 1020 nm
Spectral bandwidth	5 nm
Wavelength accuracy	± 2 nm
Wavelength repeatability	1 nm
Wavelength setting	Manual
Display	LED
Detector	Silicon photodiode
Stray light	≤ 0.3 % T
Photometric accuracy	0.5 % T
Photometric repeatability	0.2 % T
Photometric range	0 to 200 % T -0.301 to 2.000 A
Drift	≤ 0.2 % T
Noise	100 % ≤ 0.3 % T
Display range	0 to 200 % T -0.3 to 2 A
Light switch mode	Manual
Stability	± 0.004 A/h at 500 nm
Light source	Tungsten and Deuterium
Measurement modes	T,A,C
Power	AC 110 V,50 Hz AC 220 V,60 Hz
Dimensions ( L x W x H )	520 x 450 x 300 mm
Weight	12 kgs

• LED display measuring value
• Large sample chamber - upto 1000 mm cuvette
• Automatic light door function increases useful life of photoelectric sensor
• Diffraction grating 1200 L/mm ensures precise spectral results
• Optional parallel port thermal printer

Used in biochemistry, clinical and research labs, life sciences petrochemical, quality, control agriculture, environmental protection for concentration measurement, sample analysis, impurities detection, chemical kinetics, etc.