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L7
NADE
AC220V±22V 50Hz±1Hz,200W
1
1 year
China
Product Description
L7 Double Beam UV-VIS Spectrophotometer
L7 double beam UV-VIS spectrophotometers adopt double beam optical system, and blazed holographic gratings.
They have outstanding test precision and very competitive prices. 8-inch color touch-screen, cutting-edge user interface, powerful functions, and easy operation.
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
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.
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.
With USB COM port the device can be connected to a PC, which can not only enhance theperformance in data testing and spectrum scannin
Specification
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 | ±0.3nm |
Wavelength Repeatability | ≤0.1nm |
Scanning Speed | Fast-Medium-Slow |
Stray Light | ≤0.03%T (at 220nm NaI, 360nm NaNO₂) |
Photometric Range | 0.0-200.0% T; -0.301-4.000 A; 0.000-9999 C |
Photometric Accuracy | ±0.3% T; ±0.002 Abs (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 | ≤±0.002 A (200-1090nm) |
Noise | 100%（T）noise≤0.15%(T)，0%（T）noise≤0.1%(T) |
Drifting | ≤0.0009 Abs/h (250nm and 500nm after 2h warm up) |
Power | AC220V±22V 50Hz±1Hz, 200W |
Packaging Size | 710mm X 590mm X 505mm; 0.21m³; 36kg |
