Single Beam Visible Spectrophotometer

Model : 7220G

Microprocessor control, 16X2 LCD display.
Auto zero and auto 100% T adjustment provided.
Calibration curve can be set up by either measuring or entering up to 10 standards or entering K and B factors directly via the keyboard.
Parameters can be saved for later use. Up to 10 calibration curves can be stored and edited for user’ s convenience.
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Description

Model : 7220G

Microprocessor control, 16X2 LCD display.
Auto zero and auto 100% T adjustment provided.
Calibration curve can be set up by either measuring or entering up to 10 standards or entering K and B factors directly via the keyboard.
Parameters can be saved for later use. Up to 10 calibration curves can be stored and edited for user’ s convenience.
Data can be printed on an optional desktop printer and can be downloaded to a PC through RS-232 ( USB port) .
PC control provided for more accurate and flexible measurement requirements ( optional) .

SPECIFICATIONS:
Model: VIS-7220G UV-9200
Wavelength: 320~ 1100nm 190~ 1100nm
Wavelength accuracy: ± 2.0nm
Wavelength reproducibility: 1nm

Monochromator: Single-beam, C-T type, grating 1200L/ mm
Photometric accuracy: ± 0.5% T
Photometric reproducibility: 0.3% T
Stray light: 0.1% T( NaNO2 at 340nm) 0.1% T ( Nal at 220nm, NaNO2 at 340nm)
Spectral bandwidth: 2nm ( 1, 2, 4nm optional)
0% T stability: 0.2% T( 30min)
100% T stability: 0.001A/ 30min ( at 500nm, after warming up)
Operation mode: T, A, C, E
Photometric range: -0.3 ~ 3A
Display: 16X2 LCD
Detector: Silicon Photodiode
Light source: Tungsten halogen lamp Tungsten halogen lamp, D2 lamp Ï Power Requirement: 220/ 110V± 10% , 50/ 60HZ
Power consumption: 100W 120W
Dimensions: 530× 410× 210mm
Net weight: 15kg 16kg

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