Used VARIAN AA 280FS #9143454 for sale

VARIAN AA 280FS spectrometer is used in laboratory applications to measure the absorption or emission of radiation at specific wavelengths. The spectrometer is designed to accurately measure samples in the range of 190-650 nm, providing high-precision accuracy and resolution. The main feature of this spectrometer is the double-beam optical design, which allows for simultaneous wavelength measurement and drift correction. A Xenon lamp is used as a source for the radiation, and beam splitting and focusing is accomplished using optical components including mirrors and a diffraction grating. Radiation measurements are then processed and displayed on a digital color display for analysis. The spectrometer utilizes dual-beam optics, allowing for sample and reference radiation to be measured at the same time. This allows for more accurate measurements, as the reference radiation eliminates drift due to changes in focus and environment. An eight-position filter wheel allows for the scanning of 8 different wavelengths. The "Beam-Matched Mode" also ensures the measuring conditions for both beams are maintained and identical. The spectrometer has a large sample chamber, with adjustable temperature settings from -10 to +120°C, and a manual purge system to keep the chamber free of dust and contamination. The large sample chamber and the variable temperature settings allow for measurements of large volatile samples with no need for flushing the chamber between measurements. The spectrometer can also be configured with an auto purge system, which can be set to purge the chamber after each measurement at programmed periodic intervals to ensure the highest accuracy and stability. VARIAN AA280FS spectrometer features a user-friendly interface, a selection of software packages, and application support. The software package includes a full-featured library of spectral peak fitting, spectrum analysis, peak symmetry, and G/IR/UV procedures, as well as a library of spectral databases for more advanced material characterization. In summary, AA 280FS spectrometer is a highly precise, accurate and reliable device for the measurement of samples across the range of 190-650 nm. This spectrometer has a number of useful features, including a large sample chamber, adjustable temperature settings, beam matching and a user-friendly interface. This spectrometer is designed to provide reliable and precise measurements of samples in the laboratory environment.