MIDAS CTD
The MIDAS CTD is Valeport's premier CTD Profiler. High accuracy sensors (including ±0.01% pressure) and robust titanium design allow reliable operation to 6000m depth, under the harshest conditions.
Valeport Limited
Totnes, GB
Description
MIDAS CTD also features truly synchronised sampling to ensure that all sensors are sampled at exactly the same point during a profile. Primarily for use as a self recording profiler, the MIDAS CTD also has a range of communications options for real-time use, and the low power consumption and large memory also make it suitable for longer-term deployments.
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Specifications
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General
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Year of initial development
2006
Weight in air [kg]
11.5
Diameter [mm]
8.8
Length [mm]
66.5
Max. cable length [m]
6000
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Observations
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Min. time increment [s]
0.125
Resolution of salinity [psu]
0.0001
Uncertainty of salinity [psu]
0.1
Min. sound velocity [m/s]
1350
Max. sound velocity [m/s]
1900
Resolution of sound velocity [m/s]
0.02
Uncertainty of sound velocity [m/s]
0.25
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Operation Characteristics
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Data display on dedicated hardware
N
Display of analogue data
N
Method of first recording
Flash
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Pressure, temperature and conductivity sensor
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Max. conductivity [S/m]
8
Resolution of conductivity [10^-3 S/m]
0.1
Uncertainty of conductivity [10^-3 S/m]
1
Min. temperature [°C]
-5
Max. temperature [°C]
35
Resolution of temperature [°C]
0.001
Uncertainty of temperature [°C]
0.01
Resolution of pressure [% FS]
0.005
Uncertainty of pressure [% FS]
0.01
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Software specifications
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Recording with third party software
Y
Software name
DataLog Express
Graphical presentation
Y
Raw data editing
N
Re-computation with raw data
Y
CTD Probe controller
Y
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Environmental
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Max. depth [m]
6000
Max. pressure [bar]
600
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Data and connectivity
-
Max. number of samples for self-recording [10^3]
2750
External recorder required
N
Dedicated sub-surface data logger
Y
Telemetry link to remote location
Y
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Power
-
Battery type
8 x 1.5v Alkaline or 8 x 3.6v Lithium C cell
Battery duration [hr]
2880
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Additonal sensors
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Standard sensor
Conductivity; Temperature; Pressure
Documents
Brochure
Valeport - MIDAS CTD Datasheet November 2023.pdf
484.68 KB
