- 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 A.) 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.
L90 Double Beam UV-VIS Spectrophotometer
The L90 double beam UV-Vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth(L90 only), ARM chip control and data processing, 8-inch color touchscreen 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.
Description
Specifications
| Specification | Details |
| Photometry | Double Beam |
| Monochromator Type | Czerny-Turner |
| Focal Length | 200mm |
| Grating | 1600 lines/mm |
| Detector | R928 side-on photomultiplier tube |
| Spectrum Bandwidth | 0.01nm to 2nm 0.1 nm steps |
| Wavelength Setting | 8-inch color touch-screen |
| Wavelength Range | 190-900nm |
| Wavelength Accuracy | ±0.01nm |
| Wavelength Repeatability | ±0.018nm |
| Scanning Speed | 5 to 2,014 nm/min |
| Stray Light | <0.00003%T |
| Photometric Range |
0.0-200.0%T |
| Photometric Accuracy |
±0.0001A |
| Photometric Repeatability |
±0.000015A |
| Baseline | <0.00055A |
| Noise | <0.000023A @ 0A |
| Drifting | <0.00017A/hr |
| COM Port | USB |
| Light Source | Hamamatsu $\text{D}_2$ lamp, Osram halogen tungsten lamp |
| Power | AC220V±22V 50Hz±1Hz, 200W |
| Packaging Size | 730mm X 630mm X 450mm $0.21\text{M}^3$ 42.5kg |
Standard & Optional Accessories
Standard Accessories
| Accessory Item | Quantity / Pcs |
| Operation manual | 1 |
| Glass cuvette 1cm | 4pcs |
| Quartz cuvette 1cm | 2pcs |
| Power cable | 1 |
| Fuse | 2pcs |
Optional Accessories
| Accessory Item |
| UV WIN8 Spectrum data processing software |
| Thermal Plotter |
| Cuvette holder 50mm |
| Cuvette holder 100mm |