Double Beam UV-Visible Spectrophotometer LB-20DBS Catalog

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.

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

• A compact, tabletop, double beam and Czerny-Turner monochromator comprised Double Beam UV-Visible Spectrophotometer
• 20 mm of focal length, 1600 lines/mm of grating and 190 to 1100 nm of wavelength range
• Adjustable 5-speed bandwidth of 0.5 nm, 1 nm, 2 nm, 4 nm, and 5 nm
• Silicon Photocell detector, Deuterium and tungsten lamp as light source
• 8-inch color touch-screen, for easy and convenient operation and monitoring
• Supports spectra printing, storage and data analysis
• ARM chip control and data processing with USB communication port
• Offers automatic scanning of measured spectrum, multi-wavelength (1-3 λ) measurement, kinetic measurement, 1-3 curve fitting, 1-4 derivative spectra
• Fast-medium-slow scanning speed
• Highly-efficient, stable and reliable with easy-to-use interface and convenient usage

10 mm Glass cuvette × 4 pcs.
10 mm quartz cuvette × 2 pcs

UV WIN8 Spectrum data processing software
Thermal plotter
50 mm cuvette holder
100 mm cuvette holder

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.