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  ProductsOptical Property Measurement a-Sphere In-situ Spectrophotometer 

a-Sphere In-situ Spectrophotometer

Mechanical

  • Diameter: 15.2 cm (6.0")
  • Length: 49.5 cm (19.5")
  • Weight: 11.7 kg in air, 3 kg in water
  • Pressure housing: anodized aluminum
  • Measurement cavity volume: 520 cm3
a-Sphere in compact deployment cage, with pump

a-Sphere

Shown in optional

compact cage

Optical

  • Wavelength range: 360 to 750 nm (other ranges possible)
  • Wavelength resolution: 0.3 nm typical
  • Spectral resolution (FWHM): 3 nm (others possible)
  • Calibrated absorption coefficient measurement range: 0 to 10 m-1 (higher available on request)
  • Sampling rate: adjustable, up to 1 spectrum per second

Electrical

  • Power/Data Connector: Subconn/Impulse MCBH8M; Mate MCIL8F
  • Data Interface: RS232, selectable 9,600 to 115,200 baud
  • Input voltage: 10 to 24V
  • Power consumption: 25W max 

Environmental

  • Operating temperature: 0 to 35 C
  • Maximum depth: 330 m with standard pressure transducer; others available.

Data Logging 

  • 1 GB nonvolatile memory standard
  • Variable, programmable sampling rates.
  • Sampling can be scheduled by internal real-time clock
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All specifications subject to change without notice.