VIS-7220N Visible spectrophotometerDetailed product description：

Technical specifications and basic parameters of VIS-7220N visible spectrophotometer

*Wavelength range: 320-1100nm
*Wavelength accuracy: ± 2.0nm
*Wavelength reproducibility: 1.0nm
*Transmittance accuracy: ± 0.5% τ
*Transmission density repeatability: 0.2% τ
*Stray light: ≤ 0.05% τ (340nm NaNO2)
*Spectral bandwidth: 5.0nm (1nm, 2nm, 4nm optional)
*Stability: 0.001A/30min (after preheating at 500nm)
*Measurement methods: transmittance, absorbance, concentration, energy
*Luminous range: -0.3 to 3A
*Display mode: 16 × 2 character LCD
*Detector: Imported silicon photodiode
*Power supply: AC 220V/50Hz 110V/60Hz
*Power: 100W
*Instrument size: 530 × 410 × 210mm
*Net weight of the host: 15Kg

Instrument Features

*Controlled by a single-chip microcomputer, with a 16 × 2 character LCD display
*Automatic 0 and 100% adjustment function
*Automatic lamp change, automatic color filter change, large sample cell (5mm~100mm)
*Capable of measuring standard curves with a maximum of ten standard samples
*Quantitative measurement can be achieved by directly inputting K and B factors to establish a standard curve
*Can directly input standard samples and corresponding concentration values to establish a standard curve for quantitative measurement
*Adjustable electrical storage of standard curve parameters for measurement settings, capable of storing up to ten standard curves
*Standard curves can be edited at any time, making it convenient for users to use
*Equipped with a universal parallel printing interface or micro printing interface, it can print title blocks, measurement data, curve parameters, and curve standard sample points
*Equipped with RS-232 interface (RS485 and USB interface optional)
*More precise and flexible measurement requirements can be achieved through PC control (optional)
*Automatic wavelength control for measurement function (optional)