Copyright Resonance Ltd., December 2011 143 Ferndale Drive North, Barrie, ON L4N 9V9       Tel: 705-733-3633         Fax: 705-733-1388      Email:sales@resonance.on.ca 
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VS7550
UV to NIR Mini-Spectrograph
The VS7550 is a miniature Czerny-Turner spectrograph with  excellent speed, spectral range and spectral resolution with  software control of slit size, input f#, order sorting filters, grating  angle and dark exposures. The UV spectrograph has a spectral  range from the air short wavelength cut-off at 185 nm to the  detector IR cut-off at 1100 nm.  The spectrograph is small  enough to fit in your hand and can be fully operational in any  orientation at the end of a 5-meter cable.  Accessories include a  built-in spectral calibration lamp, a multi-spectral field flat light  source, fiber optic adapters and back thinned detectors. 
Spectra with 3600 grooves per mm grating using H2 VUV and Hg lamps
Features • High speed Czerny Turner optics up to f/3.5 (at CCD) • Resolution better than 0.2 nm achieved with 3600 groove per mm grating • User interchangeable gratings from 600 to 4200 grooves per mm • UV to LiF cutoff of 104 NM. • Computer controlled slit size from 25 to 400 microns • Computer controlled input aperture from f/3.5 to f/8.4 • Computer controlled order sorting filters • Computer controlled grating angle means that full range of grating can be used by creating panoramic spectrum • UHV interface with window so spectrograph can be removed from UHV chamber during bake out • Stable detector employs phosphor coating to eliminate history effects of back-thinned detectors in UV.   Sensitivity range from 185 to 1000 NM. • Simple USB interface for spectral acquisition and spectrograph control with up to 10 meter cable. • Extremely compact so remote operation is allowable • Accessories include built in calibration lamp, Flat fielding LED • NIST traceable calibrations are optional
Software and Drivers A PC software package which controls all the spectrometer functions, displays and stores spectral data is provided. Capabilities include: • Changing all CCD parameters (wavelength coefficients, integration time) • Slit width control • Spectrograph wavelength range control. • Spectrograph input aperture (input f#) • Spectrograph order sorting filter • Pixel or Wavelength Display • Software activated darks • Data export (XLS User selectable) • Store multiple spectra and graph/save multiple spectra
VS7550 UV Mini Spectrograph
Resonance spectral acquisition software showing magnified region at 353.7 nm
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