L9 double beam UV-Vis spectrophotometer is a new model, with 5-speed adjustable bandwidth (L8 model Spectrum Bandwidth 1nm or 2nm), 8-inch color touch-screen which displays menu and spectral curve and can analyze spectrum test data.
L9 double beam UV-Vis spectrophotometer is a new model, with 5-speed adjustable bandwidth (L8 model Spectrum Bandwidth 1nm or 2nm), ARM chip control and data processing, 8-inch color touch-screen which displays menu and spectral curve and can analyze spectrum test data. It’s quite easy for user and computer interaction. The instrument can perform following operations, including photometry, automatic scanning spectral measurement, quantitative analysis, dynamic analysis, and multi-wavelength measurement.
The instrument serves as the basic equipment for quality control, technical evaluation and scientific research, and can be widely used in susceptibility testing, medicine and health, biochemistry, environmental monitoring, commodity inspection, petrochemical and other fields.
Main Features
● New optical platform, enabling the host machine with excellent optical properties, metering performance, low stray light and noise, high metering accuracy and stability.
● Unique system of deuterium and tungsten lamp installation, facilitating the light source to automatically switch to the best position, and allowing users to operate the instrument, replace the light source and maintain the instrument more conveniently, accurately and safely.
● Sophisticated hardware and software design, empowering the instrument with powerful spectral data processing and storage capabilities, and performing following functions,including automatic scanning of measured spectrum, multi-wavelength (1-3 λ) measurement, kinetic measurement, 1-3 curve fitting, 1-4 derivative spectra, spectra printing and storage and data analysis.
● 8-inch color touch-screen, with a good user-machine interface, easy-to- operate.
● USB communication port.
Main technical datas:
| Model No | L9 | L8 | |
| Photometry | Double Beam | ||
| Monochromator Type | Czerny-Turner | ||
| Focal Length | 200mm | ||
| Grating | 1600 lines/mm | ||
| Detector | Silicon Photocell | ||
| Spectrum Bandwidth | 0.5nm/1nm/2nm/4nm/5nm | 2nm | |
| Wavelength Setting | 8 inch color touch screen | ||
| Wavelength Range | 190-1100nm | ||
| Wavelength Accuracy | ±0.3nm | ||
| Wavelength Repeatability | ≤0.1nm | ||
| Scanning Speed | Fast-Medium-Slow | ||
| Stray Light | ≤0.02%T (at 220nm NaI, 360nm NaNO₂) | ||
| Photometric Range | 0.0-200.0%T -0.301-4.000A 0.000-9999C |
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| Photometric Accuracy | ±0.3%T ±0.002Abs(0-0.5A) ±0.004Abs(0.5-1A) |
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| Photometric Repeatability | ≤0.15%T 0.001Abs(0-0.5A) 0.002Abs(0.5-1A) |
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| Baseline | ≤±0.0008A(200-1090nm) | ||
| Noise | 100%(T) noise≤0.1%(T), 0%(T) noise ≤0.02%(T) | ||
| Drift | ≤0.004Abs/hr(250nm and 500nm after 2 hrs warm up | ||
| Interface | USB | ||
| Light source | Hamamatsu D2 lamp, Osram halogen tungsten lamp | ||
| Power Supply | AC 110-240V, 200W | ||
| Package Size/Weight | 740x630x450mm, 35Kg | ||
