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Valeport Ltd rapidCTD Profiler

An evolution of the miniCTD and rapidSV, the rapidCTD has been designed to deliver the highest quality CTD casts at rapid drop rates.

An evolution of the miniCTD and rapidSV, the rapidCTD is designed to operate autonomously and optionally in conjunction with the Teledyne OceanScience rapidCAST underway profiling winch to deliver the highest quality CTD casts, while the vessel is underway. A conductivity cell designed for optimum flow-through, a fast response thermistor sensor and a 0.01% pressure sensor synchronously sampling at up to 32Hz deliver the highest quality profiles in a robust package.

  • Valeport Ltd rapidCTD Profiler
Valeport Ltd
St. Peters Quay
TQ9 5EW Totnes
United Kingdom
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Description

The rapidCTD is fitted with a solid-state non-volatile flash memory, capable of storing over 10 million lines of data. This is equivalent to 5,000 profiles to 1000m with a 1m profile resolution.

Communications System setup and data extraction is performed over a Bluetooth connection with a PC before and after deployment. Multiple profiles can be recorded between downloads by switching the instrument off and on again using the magnetic switch key. On power up a new logging file is created. Bluetooth auto-pairing and discovery make communicating with the instrument fast, simple and robust.

Specifications

  • Weight in air [kg]
    3.2
  • Diameter [mm]
    50
  • Length [mm]
    515
  • Housing material
    Titanium / PEEK housing Polycarbonate & Composite sensor components
  • Max. cable length [m]
    2000
  • Battery
    Y
  • Battery type
    ‘C’ Cell – 1.5V alkaline or 3.6V lithium
  • Battery duration [hr]
    approximately 18 hours operation (alkaline)/approximately 60 hours operation (lithium)
  • Max. depth [m]
    2000
  • Max. pressure [bar]
    200
  • Operating temperature: min. [°C]
    0
  • Operating temperature: max. [°C]
    35
  • Pressure sensor
    Y
  • Resolution of pressure [% FS]
    0.001
  • Accuracy of pressure sensor
    0.01
  • Temperature sensor
    Y
  • Min. temperature [°C]
    0
  • Max. temperature [°C]
    35
  • Resolution of temperature [°C]
    0.001
  • Accuracy of temperature measurement
    0.01
  • Conductivity sensor
    Y
  • Max. conductivity [S/m]
    80
  • Resolution of conductivity [10^-3 S/m]
    0.001
  • Accuracy of conductivity measurement
    0.01
  • Internal memory
    Y
  • Type of internal memory
    solid-state non-volatile flash memory
  • Software name
    DataLog x2 software
  • Graphical presentation
    Y
  • Raw data editing
    Y

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