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Product Name:HydroCAT-EP
Description:Measures conductivity, temperature, depth, dissolved oxygen, pH, turbidity, and chlorophyll. It is ideally suited for extended deployments in remote, biologically rich environments, for depths to 350 m.
Year of Initial Development:2016
Weight in air [kg]:4.0
Weight in water {kg}:1.5
Diameter [mm]:62
Length [mm]:711
Housing material:350 m plastic housing
Max. cable length [m]:350
Min. operating power [V]:9
Max. operating power [V]:24
Battery type:12 AA lithium cells
Battery duration [hr]:
Max. depth [m]:350
Max. pressure [bar]:350
Operating temperature: min. [°C]:-5
Operating temperature: max. [°C]:+45
Pressure, temperature and conductivity sensor 
Pressure sensor:Y
Type of pressure sensor:strain-gauge
Resolution of pressure [% FS]:0.002
Uncertainty of pressure [% FS]:
Accuracy of pressure sensor:± 0.1% of full scale range
Temperature sensor:Y
Type of temperature sensor:thermistor
Min. temperature [°C]:-5
Max. temperature [°C]:45
Resolution of temperature [°C]:0.0001
Uncertainty of temperature [°C]:
Accuracy of temperature measurement:± 0.002 °C (-5 to +35 °C); ± 0.01 (+35 to +45 °C)
Conductivity sensor:Y
Type of conductivity sensor:internal-field electrode cell
Max. conductivity [S/m]:7.0
Resolution of conductivity [10^-3 S/m]:0.01
Uncertainty of conductivity [10^-3 S/m]:
Accuracy of conductivity measurement:0.003 mS/cm (0.0003 S/m)
Min. depth increment [m]:
Min. time increment [s]:10
Resolution of salinity [psu]:
Uncertainty of salinity [psu]:
Min. sound velocity [m/s]:
Max. sound velocity [m/s]:
Resolution of sound velocity [m/s]:
Uncertainty of sound velocity [m/s]:
Additonal sensors 
Standard sensor:Conductivity, temperature, depth, dissolved oxygen, pH, turbidity, and chlorophyll.
No. of additional sensors:0
Description of additional sensors:
Data and connectivity 
External recorder required:N
Direct data reading:Y
Connectors:RS 232 / SDI 12
Internal memory:Y
Internal Memory [MB]:16
Type of internal memory:FLASH
Max. number of samples for self-recording [10^3]:215
Dedicated surface data logger:N
Dedicated sub-surface data logger:N
Telemetry link to remote location:Y
Software specifications 
Software name:Sea-Bird Scientific UCI
Graphical presentation:Y
Raw data editing:N
Re-computation with raw data:
CTD Probe controller:
Recording with third party software:N
Operation characteristics 
Data display on dedicated hardware:N
Display of analogue data:
Method of first recording:
More information 
Distinguishable features :Specifically designed for long-term deployments in remote, biologically rich environments, it comes equipped with multiple anti-fouling systems.

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