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Citadel CTD-NH

Teledyne Marine
1026 North Williamson Blvd.
32114 Daytona Beach
United States of America
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Specifications

  • Year of initial development
    2005
  • Weight in air [kg]
    4.3
  • Diameter [mm]
    8.3
  • Length [mm]
    52
  • Max. depth [m]
    500
  • Max. pressure [bar]
    50
  • Battery type
    alkaline welded pack (option for customer fillable cells)
  • Battery duration [hr]
    400
  • Standard sensor
    Conductivity; Temperature; Pressure
  • Description of additional sensors
    Altimeter; Fluorescence; Turbidity; Transmissometer; Dissolved Oxygen; pH; PAR
  • No. of additional sensors
    5
  • Min. depth increment [m]
    0
  • Min. time increment [s]
    0.067
  • Resolution of salinity [psu]
    0.0002
  • Min. sound velocity [m/s]
    1400
  • Max. sound velocity [m/s]
    1608
  • Resolution of sound velocity [m/s]
    0.01
  • Max. conductivity [S/m]
    7
  • Resolution of conductivity [10^-3 S/m]
    0.01
  • Uncertainty of conductivity [10^-3 S/m]
    0.9
  • Min. temperature [°C]
    -5
  • Max. temperature [°C]
    35
  • Resolution of temperature [°C]
    0.0001
  • Uncertainty of temperature [°C]
    0.005
  • Resolution of pressure [% FS]
    0.001
  • Uncertainty of pressure [% FS]
    0.05
  • Max. number of samples for self-recording [10^3]
    5477
  • External recorder required
    N
  • Dedicated surface data logger
    Y
  • Dedicated sub-surface data logger
    Y
  • Telemetry link to remote location
    N
  • Data display on dedicated hardware
    N
  • Display of analogue data
    Y
  • Method of first recording
    internal memory
  • Recording with third party software
    Y
  • Software name
    CTD-Pro / Post
  • Graphical presentation
    Y
  • Raw data editing
    N
  • Re-computation with raw data
    Y
  • CTD Probe controller
    Y
  • Distinguishable features
    no proximity effects when mounted close to other equipment; clean in field without effecting calibration. Dimensions give for largest version (self-contained, external sensor interfaced). Salinity and Speed of Sound are calculated values whose error depends on forward propagatoin of measurment erros in temperature, conductivity and depth.

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