Used BECKMAN COULTER DU-640 #293590739 for sale

BECKMAN COULTER DU-640 spectrophotometer is an advanced piece of scientific equipment used for analyzing biochemical samples. The instrument is highly versatile and can be programmed to modify its analysis parameters to meet the particular needs of the experiment. DU-640 has two primary components - a light source and a detector. The light source emits a narrow range of wavelengths from the Ultraviolet (UV) to the Visible (VIS) light spectrum. This light is then sent to the sample container and the optical system, which then directs the light through the sample and into the detector. The detector measures the light that the sample did not absorb, allowing the user to calculate the amount of light absorbed. In addition to these two main components, BECKMAN COULTER DU-640 also includes a precision control module which allows for precise reproducible measurements for quantitative experiments. The control panel also has a programmable microprocessor which can be adjusted to customize the instrument's functions, from wavelength selection and data analysis to printing results. DU-640 offers variable path lengths which can be adjusted from 0.5 mm to 10 cm and can be used with most standard cuvettes and cuvette holders. The instrument also has a leveler that ensures accurate positioning of the cell holder. Also, the electronic shutter automatically prevents light contamination. BECKMAN COULTER DU-640 can measure absorbance, transmission, reflectance, and enzyme kinetic data. It also has an expansion slot allowing the addition of various option modules. These options include a pulse modulator, high performance cell holder, and a high resolution densitometer. In the end, DU-640 is a robust and reliable spectrophotometer suitable for a variety of biochemical analyses. It has built-in automated functions that provide accurate and reproducible results that can be used in a wide range of research projects.