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MIDAS CTD+ Multiparameter Profiler

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The CTD is the most used tool in oceanography, providing detailed profile and time series data on the measured parameters Conductivity, Temperature and Pressure, values of Salinity, Density and Sound Velocity

The MIDAS CTD+ is a revolutionary Multiparameter CTD, with a wide choice of standard sensors. Featuring Valeport's latest 400 Series electronics, the CTD+ will sample all fitted sensors at exactly the same instant, at up to 8Hz. Advanced set-up software allows a variety of sampling regimes including burst modes, delay starts, and conditional sampling. With up to 64Mbyte memory and internal battery pack, as well as a selection of real time output formats, the CTD+ is perfect for both profiling or fixed mooring applications. In addition, the CTD+ may be used with Valeport own water bottle carousel.

The unit is fitted with the following standard sensors:
Conductivity Type: Pressure balanced inductive coils
Range: 0.1 to 60 mS/cm
Accuracy: ± 0.01mS/cm
Resolution: 0.003mS/cm

Pressure Type: Strain Gauge
Range: 600Bar absolute (approx 6000m water depth)
Accuracy: ± 0.1% Full scale
Resolution: 0.005% Full scale

Temperature Type: Fast response PRT
Range: -5 to +35°C
Accuracy: ± 0.005°C
Resolution: 0.002°C
The instrument is also fitted with the following additional sensors:

Turbidity Type: Seapoint
Range: 0 to 2000 FTU (max)
Accuracy: ± <2% to 750 FTU
Resolution: 0.005% FS

Fluorometer Type: Seapoint
Range: 0 to 150μg/l (max)
Accuracy: ± <0.03μg/l
Resolution: 0.005% FS

DO Type: Idronaut
Range: 0 to 200%sat (max) or 0 – 20ppm
Accuracy: ± 1%sat or ±0.1ppm
Resolution: 0.005% sat

PH Type: Valeport/Russell Pressure Balanced Electrode
Range: 2 to 12pH
Accuracy: ± 0.01pH
Resolution: 0.001pH

Redox (ORP) Type: Valeport/Russell Pressure Balanced Electrode
Range: -1000 to +1000mV
Accuracy: ± 0.5mV
Resolution: 0.033mV

Ordering Information:
0606002 Multi-parameter CTD in TITANIUM housing, 16Mbyte RAM, fitted with pressure balanced conductivity sensor, 0.01% FS pressure sensor (specify range) and fast response PRT temperature sensor. Supplied with deployment frame, DataLog 400 Windows software package, 3m "Y" lead (fish to PC and power supply), RS232/USB adaptor, tool kit, protective caps for connectors, operating manual and system transit case.

Options
0606005 Multi-parameter CTD in ACETAL housing, 16Mbyte RAM, fitted with pressure balanced conductivity sensor, 0.01% FS pressure sensor (specify range) and fast response PRT temperature sensor. Supplied with deployment frame, DataLog 400 Windows software package, 3m "Y" lead (fish to PC and power supply), RS232/USB adaptor, tool kit, protective caps for connectors, operating manual and system transit case.
0400002 16 Mbyte memory upgrade chip. Max 64 Mbyte

Optional Sensors
Select from the following sensors. Note that in addition to the basic cost of each sensor, a charge is made for interfacing that sensor to the instrument. This covers the dedicated interface pcb, wiring, connectors and calibration charges where appropriate. We are happy to accept free-issued sensors for interfacing, but the interface charge must still be applied.

0400021B Seapoint Turbidity sensor, bulkhead mounted. Supplied with Valeport calibration pot.
0400021BI Interface for Seapoint Turbidity sensor, including calibrated pcb (FTU).
0400017S Dissolved Oxygen sensor, bulkhead mounted, 2000m rated type. Supplied with replacement membrane kit.
0400017SI Interface for 2000m DO sensor, including calibrated pcb.
04000515 Aanderaa Optode DO Sensor
04000515I Interface to Aanderaa Optode DO Sensor
0400018B pH sensor, bulkhead mounted. Pressure balanced (6000m rated). Supplied with calibration kit and calibration pot.
0400018BI Interface for pH sensor, including calibrated pcb.
0400019B Redox (ORP) sensor, bulkhead mounted. Pressure balanced (6000m rated). Supplied with standard solution test kit and pot.
0400019BI Interface for Redox sensor, including calibrated pcb.
0400023C Seapoint Chlorophyll Fluorometer, remote type with 1m flylead (free end), 6000m rated
0400023R Seapoint Rhodamine Fluorometer, remote type with 1m flylead (free end), 6000m rated
0400023F Seapoint Fluorescein Fluorometer, remote type with 1m flylead (free end), 6000m rated
0400023I Interface for Seapoint Fluorometers, including calibrated pcb, Subconn bulkhead connector and flylead termination
04000513C Turner Cyclops Chlorophyll Fluorometer, remote type inc 1m cable & connectors
04000513R Turner Cyclops Rhodamine Fluorometer, remote type inc 1m cable & connectors
04000513F Turner Cyclops Fluorescein Fluorometer, remote type inc 1m cable & connectors
04000513I Interface for Turner Fluorometers, including calibrated pcb, Subconn bulkhead connector and flylead termination
04000514 Solid Secondary Standard for Turner Cyclops Fluorometers
0400025R PAR sensor, remote type with 1m flylead (free end) and mounting bracket
0400025RI Interface for PAR sensor, including calibrated pcb, Subconn bulkhead & flylead termination