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Double Beam UV-Vis Spectrophotometer LUS-B20 is a double beam designed UV-Vis spectrophotometer, offers 190 to 1100 nm of wavelength range with C-T monochromator and 1600 L/mm holographic grating. Features 3D spectrogram measurement for sample with dynamic change, this spectrophotometer has adjustable spectral bandwidth of 1.0 nm to 5.0 nm. Designed compactly with fixed 2 trench sample holder, deuterium and tungsten lamp as light source, it has automatic calibration. Equipped with photomultiplier sensor, digital signal and USB interface, 4 quartz cuvette, this spectrophotometer provides high resolution, low stray light, lasting stability, and powerful software function.
| Wavelength range | 190 to 1100 nm |
| Spectral bandwidth | 1.0 to 5.0 nm (adjustable) |
| Optical system | Double beam, C-T monochromator, 1600 L/mm holographic grating |
| Wavelength accuracy | ±0.3 nm |
| Wavelength repeatability | 0.1 nm |
| Wavelength resolution | 0.05 nm |
| Wavelength edge noise | 100%T line ≤0.1%T；0%T line ≤0.05%T |
| Stray light | 0.015 %T (at 220nm and 360 nm) |
| Baseline flatness | ≤±0.001 Abs |
| Baseline noise | ±0.1 %T |
| Baseline drift | ≤0.0004 Abs / h (after warm-up at 500 nm) |
| Standard sample holder | Fixed 2 trench sample holder |
| Measuring length | 0 to 200% T, -4.000 to 4.000 Abs, -9999 to 9999C, -9999 to 9999F |
| Transmittance accuracy | ±0.3 %T |
| Transmittance repeatability | 0.1 % T |
| Light switching point | Adjustable; 294 nm to 365 nm |
| Light Source | Deuterium lamp, Tungsten lamp (20 W/12 V) |
| Detector | Silicon photodiode detector |
| Interface | Digital signal; USB |
| Cuvette | 4 quartz cuvette; 10 mm optical path |
| Power supply | 220 V ± 10%, 50Hz |
| Power | 200 W |
| Dimension (L×W×H) | 620×510×245 mm |
| Package dimension (L×W×H) | 745×635×400 mm |
| Net weight | 30 kg |
| Gross weight | 39 kg |
Double Beam UV-Vis Spectrophotometer is used for photometric measurement, spectrum scan, quantitative determination, dynamics measurement, 3D map measurement, multi-wavelength test, DNA/ Protein concentration measurement etc. across factories, schools, metallurgy, agriculture, food industry, biochemistry, environment protection, petrochemical industry, medical and health and scientific research institutes or labs etc.
