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USB650 Red Tide spectrometer

/ Education systems

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 about UV and visible absorbance, reflectance and emission applications.

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).

Our versatile models: USB-650 (wavelength: 350-1000nm), USB-650-UV (200-880nm). Our integrated models: USB-650-UV-VIS (200-880nm) and USB-650-VIS-NIR (350-1000nm).

 

  • Smart choice for education
  • Fully integrated models
  • Ready-to-use spectrometers
  • Several different options
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  • Chemistry
  • Earth Sciences
  • Engineering
  • Health and Life Sciences
  • Teaching labs
  • Physics and Astronomy
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Physical
Dimensions (in mm)89.1 x 63.3 x 34.4
Weight190 g
 Detector
TypeLinear silicon CCD array
Pixels650 enabled pixels
Pixel size14 μm x 200 μm
Pixel well depth~62,500
Sensitivity75 photons/count @ 400 nm
Optical Bench
Designf/4, asymmetrical crossed Czerny-Turner
Focal length42 mm input; 68 mm output
Entrance aperture25 μm wide slit
Fiber optic connectorSMA 905
Spectroscopic
Wavelength rangeUSB-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 ratio250:1 (at full signal)
A/D resolution12 bit
Dark noise3.2 RMS counts
Dynamic range2 x 10^8; 1300:1 for a single acquisition
Integration time3 ms to 65 s (15 s typical max)
Stray light≤0.05% @ 600 nm; ≤0.10% @ 435 nm
Corrected linearity≥99.8%
Computer
Operating systemsWindows 98/Me/2000/XP, Mac OS X and Linux w/USB port
Operating software (required)SpectraSuite Spectroscopy Software

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.

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Flexible platform, convenient interface

The Red Tide Spectrometer is a low-cost, small- footprint lab spectrometer that is 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 is 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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