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The DW-L9 double beam UV-Vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth, 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
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
Wavelength Setting: 8-inch color touch-screen
Wavelength Range: 190-1100nm
Wavelength Accuracy: ±0.3nm(actual test ±0.2nm )
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
-0.301-4.000 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: ≤±0.0008 A(200-1090nm)
Noise: 100%(T)noise≤0.1%(T) , 0%(T)noise≤0.02%(T)
Drifting: ≤0.004 Abs/h (250nm and 500nm after 2h warm up)
COM Port: USB
Light Source: Hamamatsu D2 lamp,Osram halogen tungsten lamp
Power: AC220V±22V 50Hz±1Hz, 200W
Packaging Size: 730mm X 630mm X 450mm 0.21M3 42.5kg
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