2022 Hot sale Dual beam UV visible spectrophotometer Double spectrometer Used in teaching research food hygiene (62056802835)

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Products Description


Hot low price 190-1100 double-beam uv-visible uv-vis spectrometer uv/vis uv visible vis dual double beam spectrophotometer

Advantage
Double beam optical system; 8 inch color touch-screen
Automatic zero and full scale adjustment
Equipped with USB interface
Optional : UV WIN8 Spectrum data processing software / Thermal plotter

Main Features
Adopt blazed holographic gratings. Have outstanding test precision and very competitive price. 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
◆ Multi-wavelength measurement ◆ GOTO λ


Model
ME-L7
Wavelength Range
190-1100nm
Spectrum Bandwidth
1.8nm
Wavelength Accuracy
± 0.3nm
Wavelength Repeatability
≤ 0.01nm
Photometric Range
0.0 ~ 200.0% T ; -0.301 ~ 4.000A ; 0.000 to 9999C
Photometric Accuracy
± 0.3% T ; ± 0.002Abs (0 - 0.5A) ; ± 0.004Abs (0.5 - 1A)
Photometric Repeatability
≤ 0.15% T ; 0.001Abs (0 - 0.5A) ; 0.002Abs (0.5 - 1A)
Stray Light
≤ 0.15% (measured by NaI at 220 nm) (measured at NaNO2 at 360 nm)
Monochromator Type
Czerny-Turner
Focal Length
160mm
Grating
1200 lines/mm
Detector
Silicon Photocell
Noise
100%(T) noise ≤ 0.15% (T) ; 0% (T) noise ≤ 0.1% (T)
Baseline Drift
± 0.0002 Abs / h (250nm and 500nm after preheat warm up for 2 hours )
Power
AC220v± 22v, 50Hz± 1Hz, 200W
COM Port
USB


















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62056802835
0.3626 s.