Chromatography
New Usb4000 Spectrometer is Compact, Super-fast and Versatile
Aug 24 2006
The USB4000 Spectrometer is distinguished by its enhanced electronics: 16-bit A/D resolution for auto nulling (an enhanced electrical dark-signal correction); EEPROM storage of calibration coefficients for simple spectrometer start-up; 8 programmable GPIO signals for controlling peripheral devices; and an electronic shutter for spectrometer integration times as fast as 10 microseconds a feature that prevents detector saturation. In addition, the USB4000 has signal-to-noise of 300:1, sensitivity of 130 photons/count at 400 nm, and optical resolution (FWHM) ranging from 0.3-10.0 nm.
The USB4000 interfaces to PCs, PLCs or other embedded controllers via USB 2.0 or RS-232 serial port. Operated via the serial port, the USB4000 requires a single 5-volt power supply. Data unique to each spectrometer is programmed into a memory chip on the USB4000; Ocean Optics spectrometer operating software reads these values for easy setup and hot swapping among PCs.
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