CastAway-CTD
The small, handy CastAway-CTD is a lightweight, easy-to-use instrument designed for quick and accurate conductivity, temperature and depth profiles. Each cast is automatically referenced with both time and location using its built-in GPS receiver. Data can be viewed immediately on its colour LCD screen. The CastAway-CTD is the first handheld castable instrument that provides instantaneous profiles of temperature, salinity, and sound speed. Designed for coastal profiling.
SonTek
San Diego, US
Description
The CastAway-CTD® is the first handheld castable instrument that provides instantaneous profiles of temperature, salinity, and sound speed. Designed for coastal profiling, it incorporates a 6-electrode conductivity cell, coupled with a fast response thermistor to provide accurate, high-resolution data to 100m.
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Specifications
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General
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Year of initial development
2010
Weight in air [kg]
0.45
Diameter [mm]
8.4
Length [mm]
20.3
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Observations
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Min. depth increment [m]
0.01
Min. time increment [s]
0.2
Resolution of salinity [psu]
0.01
Uncertainty of salinity [psu]
0.1
Min. sound velocity [m/s]
1400
Max. sound velocity [m/s]
1730
Resolution of sound velocity [m/s]
0.01
Uncertainty of sound velocity [m/s]
0.15
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Operation Characteristics
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Data display on dedicated hardware
Y
Display of analogue data
Y
Method of first recording
digital
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Pressure, temperature and conductivity sensor
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Max. conductivity [S/m]
10
Resolution of conductivity [10^-3 S/m]
0.001
Uncertainty of conductivity [10^-3 S/m]
0.05
Min. temperature [°C]
-5
Max. temperature [°C]
45
Resolution of temperature [°C]
0.01
Uncertainty of temperature [°C]
0.05
Resolution of pressure [% FS]
0.01
Uncertainty of pressure [% FS]
0.25
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Software specifications
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Recording with third party software
N
Software name
CastAway - CTD
Graphical presentation
Y
Raw data editing
Y
Re-computation with raw data
Y
CTD Probe controller
Y
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Environmental
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Max. depth [m]
100
Max. pressure [bar]
100
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Data and connectivity
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Max. number of samples for self-recording [10^3]
750
External recorder required
N
Dedicated surface data logger
N
Dedicated sub-surface data logger
Y
Telemetry link to remote location
Y
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Power
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Battery type
AA Alkaline
Battery duration [hr]
40
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Additonal sensors
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Standard sensor
Measures conductivity, temperature, pressure and includes GPS. Also, calculated salinity, sound speed, density, depth and specific conductivity.
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More information
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Distinguishable features
5Hz response time; 5Hz sampling rate; 6 electrode flow through cell design
Documents
Brochure
migrationnpvl6j.pdf
1.52 MB
Other documents
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Product Manual (15)1.52 MB
