CTD Systems

SWiFT Deep CTD

Designed for a Seamless Workflow

The new SWiFT Deep CTD is the latest in Valeport’s popular range of SWiFT profilers and delivers enhanced accuracy and versatility for those requiring CTD measurements to depths of 6000m.

Valeport Limited

Totnes, GB

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Description

Measured CTD with all the benefits of the SWiFT

The new SWiFT Deep CTD profiler provides survey-grade sensor technology coupled with the convenience of Bluetooth^® wireless technology, a rechargeable battery and an integral GPS module to geo-locate each profile.

Ease of use is at the heart of the SWiFT range. The new SWiFT Deep CTD not only makes any problematic battery changes a thing of the past but delivers fully-automated data transfer with no user input required, it also features Valeport’s signature SWiFT magnetic switch ring. The switching ring is easy to operate even with cold hands. It simply turns through 90 degrees and reassuringly clicks into position. The end cap features user-friendly LED indications for operational status, GNSS, battery and Bluetooth^® wireless technology.

Enhanced accuracy

Using Valeport’s world-leading high-accuracy sensor technology to combine sensors for multiple profiles in a single drop, the SWiFT Deep CTD features a new fast response temperature probe and operates down to 6000 m as standard, delivering directly measured Conductivity, Temperature and Depth. In addition, the SWiFT Deep CTD will provide computed Salinity, Density and Sound Velocity, calculated using the UNESCO international standard algorithm and Chen and Millero equation.

SOFTWARE

Download and review data with Valeport Ocean

Data can be easily and quickly downloaded and reviewed wirelessly via Bluetooth^®, using Valeport’s new Ocean software for Windows, iOS and Android and instantly shared in industry standard data formats through email and cloud services. A USB Cable and Bluetooth adapter are provided.

Multiple Applications

With a deployment cage, a large internal Lithium-ion rechargeable battery and the convenience of charging via USB, SWiFT Deep CTD is intended for hydrographic and offshore use to 6,000m and offers the highest quality CTD profiles in a compact, robust and portable package.

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Specifications

General: Year of initial development

2023

Weight in air [kg]

3

Diameter [mm]

80

Length [mm]

330

Housing Material

Housing - titanium | Sensor Guard - acetal | Temperature Sensor - titanium | Pressure Sensor - titanium | Conductivity Sensor - polyurethane coated titanium with ceramic core | Deployment frame - 316L stainless steel and polyurethane

Observations: Resolution of salinity [psu]

0.01

Resolution of sound velocity [m/s]

0.25

Pressure, temperature and conductivity sensor: Pressure sensor

Y

Type of pressure sensor

Temperature compensated piezo-resistive pressure transducer

Resolution of pressure [% FS]

0.001

Accuracy of pressure sensor

±0.01% FS

Temperature sensor

Y

Type of temperature sensor

Fast response thermistor temperature sensor

Min. temperature [°C]

-5

Max. temperature [°C]

35

Resolution of temperature [°C]

0.001

Accuracy of temperature measurement

±0.01°C

Conductivity sensor

Y

Type of conductivity sensor

Polyurethane coated titanium with ceramic core

Max. conductivity [S/m]

80

Resolution of conductivity [10^-3 S/m]

0.001

Accuracy of conductivity measurement

±0.01 m/s

Software specifications: Software name

Valeport Ocean

Graphical presentation

Y

Raw data editing

Y

Re-computation with raw data

Y

CTD Probe controller

Y

Recording with third party software

Y

Environmental: Max. depth [m]

6000

Max. pressure [bar]

600

Operating temperature: min. [°C]

-5

Operating temperature: max. [°C]

35

Data and connectivity: External recorder required

N

Direct data reading

Y

Connectors

Bluetooth

Internal memory

N

Telemetry link to remote location

Y

Power: Battery

Y

Battery type

Internal rechargeable Li-ion battery pack

Battery duration [hr]

5 days continuous operation Up to 30 days sample scenario dependant