Spectrophotometer VIS-7220N

Spectrophotometer Model: VIS-7220N Instrument: The instrument system relative measurement principle based on the work, the substance may be transmittance, absorbance and concentration measurement is widely used in metallurgy geology, machinery manufacturing, environmental protection, biochemistry. , production, education and health and medical science, clinical testing, food hygiene, drug testing, and other areas of agricultural chemicals. Daily chemist is the most commonly used analytical instruments. Instrument features 2mm spectral bandwidth, especially for grassroots units. Grating do dispersive element bromine tungsten lamp light source, do photocell receiver with high energy, long life, easy adjustment. Features single-chip computer control, digital display, easy to operate · convenient method of calculating three-point concentration curve Equipped universal parallel interface or micro-playing interface technology parameters of wavelength range:.. 330 ~ 800nm ??Wavelength Accuracy: ± 2.0nm Wavelength weight Reproducibility: 1.0nm Transmittance accuracy: ± 0.5% τ Transmittance Repeatability: 0.3% τ Stray light: ≤0.5% τ (360nmNaNO2) Spectral bandwidth: 2.0nm 0% Stability: ≤0.2% τ (30 minutes) 100% Stability: ≤0.5% τ (3 minutes) work: T: 0 ~ 110% τA: 0 ~ 2AC: direct reading concentration of 0.000 to 9999 Display: 4 LED digital display Detector: photocell Power: AC220V / 50Hz110V / 60Hz Power: 80W Instrument Size: 470 × 370 × 180mm Weight: 10kg