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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
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
