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DW-721G VIS Spectrophotometer been widely used in colleges and enterprises for general quantitative analysis and experiments based in absorbance measurements.
Main Features
Sample compartment for 5-100mm cuvettes
Equipped with RS232 port
Precise automatic T/A changeover
Automatic zero and full scale adjustment
Direct concentration read-out and concentration factor setting function
Software optional
High quality silicon photometric diode detector and 1200 lines/mm diffraction grating ensure the high quality accuracy and precision.
Backlit LCD display for an easy readout.
Automatic 0A and 100%T.
Easy switching of transmittance, absorbance and concentration modes, just by pressing one key.
Direct concentration read-out and concentration factor setting function.
Large sample compartment, for 5 - 100mm path length cuvettes with optional holders.
Easy to change the halogen lamp or lamp by the user himself.
Specificatons
Photometry: Split Beam
Monochromator Type: Czerny-Turner
Focal Length: 160mm
Grating: 1200 lines/mm
Detector: Silicon Photocell
Spectrum Bandwidth: 5nm
Wavelength Setting: Manual Turn Knob
Wavelength Range: 340-1000nm
Wavelength Accuracy: ±2nm
Wavelength Repeatability: ≤1nm
Stray Light : ≤0.5%T( at 360nm NaNo2 )
Photometric Range: 0.0-100.0% T
0.000-1.999 A
0.000-1999 C
Photometric Accuracy: ±0.5% T
±0.004 Abs (0-0.5A)
±0.008 Abs (0.5-1A)
Photometric Repeatability: ≤0.2% T
0.002 Abs (0-0.5A)
0.004 Abs (0.5-1A)
Noise: 100%(T)noise≤0.3%(T) , 0%(T)noise≤0.2%(T)
Power: AC220V±22V 50Hz±1Hz, 130W
Packaging Size: 560mm X 490mm X 285mm 0.08M3 14kg
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