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Spectrometer VS70
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The VS 70 spectrometer is a high resolution, small, portable, and rugged low cost linear array spectrometer (download datasheet (147kB)). It covers the wavelength range of 200 to 900 nm. The spectrometer can be equipped with different line detectors (e.g. Hamamatsu S 9840, S837x, S390x) and hence tailored for the specific application. The device has a high throughput (f/2) and very low straylight.
It communicates via true USB 2.0 plug and play interface.
The unit is powered by USB (self powered hub or PC). |
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The spectrometer can be operated with the intuitive measuring software VersaSpec (for a demo version see Software Section). The VersaSpec software measures reference, absorbance, transmission/ reflection and allows different spectra calculations. Another feature of the software is the real time export to Excel.
| Physical Parameters | |
| Dimensions | 107 mm x 101 mm x 50 mm |
| Weight | 650 g |
| Optical Specifications | |
| Design | f/2, flatfield concave grating |
| Focal length | 70 mm |
| Entrance aperture | 100 µm wide input slit (optional 50 µm) |
| Fiber input | SMA 905 |
| Dispersion | 25 nm/mm |
| Wavelength range | 200 - 900 nm (shift up to 950 nm is possible) |
| Wavelength accuracy | < 0.5 nm |
| Optical Resolution | ~3 nm FWHM @ 100 µm slit ~1.5 nm FWHM @ 50 µm slit |
| Pixel Resolution | ~0.35 nm/pixel (S 9840) |
| Stray light | <0,2 ‰ (GG 495 nm, λ = 420 nm/ 600 nm) |
| Detectors | |
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Hamamatsu S837x (256, 512 or 1024 pixel of 25 µm/
50 µm x 500 µm) Hamamatsu S390x (256, 512 or 1024 pixel of 25 µm/ 50 µm x 500 µm) Hamamatsu S9840 (2048 pixel of 14 µm x 196 µm) |
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| Electrical parameters | |
| SNR | > 6000 (S 837x), > 10 000 (S 390x), > 2000 (S 9840) |
| A/D resolution | 15 bit used (16 bit ADC) |
| Integration time | 5 .. 65000 ms |
| Interface | USB 2.0 fullspeed (RS 232, SPI, TTL UART optional) |
| Power supply | Powered by USB (self powered hub or PC) |
| TE Cooling | Optional (additional 6 .. 12 V, 1A powersupply necessary) |