USB650 Red Tide spectrometer

/ Education systems
red-tide-usb

Worlds most amazing low-cost spectrometer

The Red Tide Spectrometer is a low-cost, small- footprint lab spectrometer that’s ideal as a general-purpose instrument for your budget-conscious classroom or teaching lab. The Red Tide has a wavelength range of 350- 1000 nm, and utilizes a detector with 650 active pixels; that’s 650 data points in one full spectrum, or one data point per nanometer. Configured with a 25 μm entrance slit, the Red Tide offers ~2.0 nm optical resolution (FWHM).

Spectrometer alone or with sampling system

The USB-650 Red Tide comes without a light source or sample system, allowing you the freedom to choose the accessories that best fit your application. The USB-650-VIS-NIR (at right) comes with a direct-attach light source and sample holder. The light source includes an LED-boosted tungsten source and a sample holder for 1-cm cuvettes that connects to the front of the spectrometer. In this configuration, the system has a wavelength range of 370-980 nm.

The USB-650-UV-VIS includes a deuterium tungsten halogen light source and a 1-cm cuvette holder. In this configuration, the system has a wavelength range of 200-850 nm.

Flexible platform, convenient interface

The Red Tide Spectrometer is a low-cost, small- footprint lab spectrometer that’s ideal as a general-purpose instrument for your budget-conscious classroom or teaching lab. The Red Tide has a wavelength range of 350-1000 nm, and utilizes a detector with 650 active pixels; that’s 650 data points in one full spectrum, or one data point per nanometer. Configured with a 25 μm entrance slit, the Red Tide offers ~2.0 nm optical resolution (FWHM).

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Physical
Dimensions (in mm) 89.1 x 63.3 x 34.4
Weight 190 g
 Detector
Type Linear silicon CCD array
Pixels 650 enabled pixels
Pixel size 14 μm x 200 μm
Pixel well depth ~62,500
Sensitivity 75 photons/count @ 400 nm
 Optical Bench
Design f/4, asymmetrical crossed Czerny-Turner
Focal length 42 mm input; 68 mm output
Entrance aperture 25 μm wide slit
Fiber optic connector SMA 905
 Spectroscopic
Wavelength range USB-650 / 350-1000 nm
USB-650-VIS-NIR / 350-1000 nm
USB-650-UV-VIS / 350-1000 nm
Optical resolution ~2.0 nm FWHM
Signal-to-noise ratio 250:1 (at full signal)
A/D resolution 12 bit
Dark noise 3.2 RMS counts
Dynamic range 2 x 10^8; 1300:1 for a single acquisition
Integration time 3 ms to 65 s (15 s typical max)
Stray light ≤0.05% @ 600 nm; ≤0.10% @ 435 nm
Corrected linearity ≥99.8%
Computer
Operating systems Windows 98/Me/2000/XP, Mac OS X and Linux w/USB port
Operating software (required) SpectraSuite Spectroscopy Software
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Operable with PCS or data-loggers

The Red Tide interfaces to PCs via its USB port, which streamlines start-up and supports hot swapping of the spectrometer. What’s more, the Red Tide interfaces to PASCO’s Xplorer GLX (in blue), a unique combination of datalogger and lab analysis tool that eliminates the need for a PC. The Xplorer GLX is available from Ocean Optics or PASCO. Visit PASCO for details. The Red Tide also works with Vernier’s Logger Pro Software. Visit Vernier for details.

Cross-platform spectrometer software

Red Tide operates via SpectraSuite Spectroscopy Operating Software, the first spectroscopy software to run in Macintosh, Linux and Windows. The Chemistry module for SpectraSuite includes features specifically designed for educational use, such as a Beer’s Law calculator for absorbance experiments. The Red Tide also works with our educational distributors’ software.

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