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The Model 420 UV-Visible Spectrophotometer

S. I. Photonics Model 440 UV-Vis Spectrophotometer with Dip Probe Model 420 UV/Visible Spectrophotometer with a Universal Optics Bench Sampling Accessory

bulllitThe 400 Series Spectrophotometers have become the industry leader for high performance UV-Vis spectroscopy. Analytical performance and long term stability closely matches those of double beam instruments costing twice as much. The Model 420 is based on the similar platform of our Model 410 but also contains a deuterium light source for extending the wavelength range from 200 nm and 950 nm.

Performance Specifications

Wavelength Range ................................................200 nm - 950 nm
Spectral Bandwidth ...............................................1.0 nm
Photometric Range .............................................. 0.002 -3.2 AU
Photometric Accuracy .......................................... 0.005 AU
Baseline Stability ................................................. <0.005 AU/hour
Stray Light.............................................................. <0.02%
Typical Speed ...................................................... 1 spectra/sec

General Specifications

Size......................................................................9 x 13 x 5.5 (inches)
Power.................................................................110/220 VAC, 0.8A
System Detector.............................................. 2,048 element linear CCD
Grating............................................................... Holographic grating
Mechanicals......................................................Internal mechanical shutter for automatic dark signal correction
Light Sources...................................................Deuterium & Tungsten sources with optical feedback for improved stability
Display Modes ................................................ Absorption, % Transmittance, % Reflectance and Intensity
Storage.............................................................. Disk or hard drive in .SIS, .XLS, and .TXT formats
Analysis Packages......................................... Quantitative Analysis, Time Acquisitions, Kinetics, Peak Find, Multiple Spectra, Radiometry and Colorimetry