WEST TUNE L7 Double Beam UV-VIS Spectrophotometer
- Double beam optical system
- 8-inch color touch-screen
- Automatic zero and full scale adjustment
- Automatic wavelength settings
- Equipped with USB COM port
- UV WIN8 Spectrum Data Processing Software optional
- Thermal plotter optional
Features
1,L7 double beam UV-VIS spectrophotometers adopt double beam optical system, and blazed holographic
gratings. They have outstanding test precision and very competitive prices.
2,8-inch color touch-screen, cutting-edge user interface, powerful functions, and easy operation.
3,With powerful functions, the equipment shows great performance in qualitative and quantitative
testing, such as:
Full-spectrum scanning
Linear regression
Detailed spectrum scanning
Concentration direct reading
Time-based kinetics determination
Peak / Valley detecting
GOTO λ Multi-wavelength measurement
4,The equipment is designed with sophisticated power protection system. With high capacity of
internal memory, it can store testing results, scanned images, regression equations and correction
data. Therefore, it follows a fast initialization when power on.
5,The instrument can be connected with dedicated printer, which can print testing results, or draw
curve from spectral scanning, fixed wavelength time-based scanning, and linear regression.
6,With USB COM port the device can be connected to a PC, which can not only enhance theperformance
in data testing and spectrum scanning, but also expand the memory to save more testing results.
Specifications
| Model |
L7 |
| Photometry |
Double Beam |
| Monochromator Type |
Czerny-Turner |
| Focal Length |
160mm |
| Grating |
1200 lines/mm |
| Detector |
Silicon Photocell |
| Spectrum Bandwidth |
1.8nm |
| Wavelength Setting |
8-inch color touch-screen |
| Wavelength Range |
190-1100nm |
| Wavelength Accuracy |
±0.5nm |
| Wavelength Repeatability |
≤0.2nm |
| Scanning Speed |
Fast-Medium-Slow |
| Stray Light |
≤0.03%T( at 220nm NaI, 360nm NaNo2 ) |
Photometric Range |
0.0-200.0%T
-0.301-4.000A 0.000-9999C |
Photometric Accuracy |
±0.3%T
±0.002Abs (0-0.5A)
±0.004 Abs (0.5-1A) |
Photometric Repeatability |
≤0.15%T
0.001 Abs (0-0.5A)
0.002 Abs (0.5-1A) |
| Baseline |
≤±0.002A (200-1090nm) |
| Noise |
100%(T)noise≤0.15%(T) , 0%(T)noise≤0.1%(T) |
| Drifting |
≤0.0009 Abs/30min (250nm and 500nm after 2h warm up) |
| Power |
AC220V±22V 50Hz±1Hz, 200W |
| Packaging Size |
710mm X 590mm X 505mm 0.21M3 36kg |
Standard Accessories
| User manual |
1pc |
| Glass cuvette 1cm |
4pcs |
| Quartz cuvette 1cm |
2pcs |
| Power cable |
1pc |
| Fuse |
2pcs |
Optional Accessories
1.UV WIN8 Spectrum data processing software
2.Thermal plotter
Audited Supplier 
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