Double Beam UV-Visible Spectrophotometer LB-20DBS is a compact, tabletop, double beam and Czerny-Turner monochromator comprised Double Beam UV-Visible Spectrophotometer, comes with 20 mm of focal length and 1600 lines/mm of grating. With 190 to 1100 nm of wavelength range, features adjustable 5-speed bandwidth of 0.5 nm, 1 nm, 2 nm, 4 nm, and 5 nm with fast-medium-slow scanning speed. Designed with Silicon Photocell detector, deuterium and tungsten lamp as light source, and 8-inch color touch-screen, supports spectra printing, storage and data analysis. Incorporated with USB communication port, ARM chip control and data processing, and easy user interface, this spectrophotometer has automatic scanning of measured spectrum, multi-wavelength (1-3 λ) measurement, kinetic measurement, 1-3 curve fitting, and 1-4 derivative spectra.
$ 5625
Download CatalogSpecifications
| Wavelength range | 190 to 1100 nm |
| Spectral bandwidth | 0.5 nm, 1 nm, 2 nm, 4 nm, and 5 nm |
| Focal length | 200 mm |
| Optical system | Double beam, Czerny-Turner monochromator, 1600 lines/mm grating |
| Wavelength accuracy | ±0.3 nm |
| Wavelength repeatability | ≤ 0.1 nm |
| Noise | 100% (T) noise ≤ 0.1%(T) 0% (T) noise ≤ 0.02% (T) |
| Stray light | ≤ 0.02% T (at 220 nm NaI, 360 nm NaNo2) |
| Baseline drift | ≤0.0004 Abs / h (after 2h warm-up at 250 nm and 500 nm) |
| Measuring length | 0.0 to 200.0% T -0.301 to 4.000 A 0.000 to 9999 C |
| Transmittance accuracy | ±0.3 %T ±0.002Abs (0 to 0.5A) ±0.004 Abs (0.5 to 1A) |
| Transmittance repeatability | ≤0.15% T 0.001 Abs (0 to 0.5 A) 0.002 Abs (0.5 to 1 A) |
| Light Source | Deuterium lamp, Halogen Tungsten lamp |
| Detector | Silicon photocell detector |
| Scanning speed | Fast-Medium-Slow |
| Controller | ARM chip control |
| Display | 8-inch color touch screen |
| Interface | USB |
| Power supply | AC 220 V ± 22 V, 50 ± 1 Hz |
| Power | 200 W |
| Package dimension (L×W×H) | 730×630×450 mm |
| Gross weight | 42.5 kg |
Features
Standard Accessories
10 mm Glass cuvette × 4 pcs.
10 mm quartz cuvette × 2 pcs
Optional Accessories
UV WIN8 Spectrum data processing software
Thermal plotter
50 mm cuvette holder
100 mm cuvette holder
Applications
Double Beam UV-Visible Spectrophotometer is used for photometry, automatic scanning spectral measurement, quantitative analysis, dynamic analysis, and multi-wavelength measurement across susceptibility testing, medicine and health, biochemistry, biotechnology, environmental monitoring, commodity inspection, petrochemical etc.
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| Optical system | Double beam |
| Wavelength range | 190 nm ~ 1100 nm |
| Spectral bandwidth | 1.8 nm |
| Stray light | ≤ 0.04 T at 360 nm; 220 nm |
| Wavelength accuracy | ± 0.3 nm |
| Optical system | Double beam |
| Wavelength range | 190 nm ~ 1100 nm |
| Spectral bandwidth | 1 nm |
| Wavelength accuracy | ± 0.1 nm (D2 656.1 nm), ± 0.3 nm (full wavelength range) |
| Wavelength repeatability | 0.1 nm |
| Optical system | Double beam |
| Wavelength range | 190 nm ~ 1100 nm |
| Spectral bandwidth | 2 nm |
| Wavelength accuracy | ± 0.1 nm |
| Wavelength repeatability | 0.1 nm |
| Optical system | Double beam |
| Wavelength range | 190 nm ~ 1100 nm |
| Spectral bandwidth | 0.5 nm, 1 nm, 2 nm, 5 nm |
| Stray light | ≤ 0.04 T at 360 nm; 220 nm |
| Wavelength accuracy | ± 0.3 nm |
| Wavelength Range | 190 to 1100 nm |
| Spectral Bandwidth | 1 nm |
| Wavelength Accuracy | ±0.1 nm at 656.1 nm, ±0.3 nm (all) |
| Wavelength Repeatability | ≤ 0.1 nm |
| Photometric Range | 0 to 200%T, -0.3 to 3A, 0 to 9999C |
| Optical System | Double Beam |
| Bandwidth | 1 nm |
| Cell Holder | 2-position; 1 cm cell holder |
| Grating | Holographic grating; 1200 lines/mm |
| Wavelength Range | 190 to 1100 nm |
Address: Labotronics Scientific. 1007 N Orange St.,
Wilmington, DE 19801, USA
Mail: info@labotronics.com
WhatsApp: +1 579 401 0534
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