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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.
![](https://cdn.geo-matching.com/9p66Xqpb.png?w=128&s=6e192afc108ce9c8b858ad37c632f171)
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.
Do you have questions about this product?
- Questions about price, availability, and/or retailers
- Questions about technical specifications and usage
- Questions about suitability for your project or application
Specifications
-
General
-
Year of initial development
2006
Weight in air [kg]
11.5
Diameter [mm]
8.8
Length [mm]
66.5
Max. cable length [m]
6000
-
Observations
-
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
-
Operation Characteristics
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Data display on dedicated hardware
N
Display of analogue data
N
Method of first recording
Flash
-
Pressure, temperature and conductivity sensor
-
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
-
Software specifications
-
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
-
Environmental
-
Max. depth [m]
6000
Max. pressure [bar]
600
-
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
-
Power
-
Battery type
8 x 1.5v Alkaline or 8 x 3.6v Lithium C cell
Battery duration [hr]
2880
-
Additonal sensors
-
Standard sensor
Conductivity; Temperature; Pressure
Documents
![Valeport - MIDAS CTD Datasheet November 2023.pdf](https://geo-matching.com/media/EoODd05R.jpg)