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SWiFT CTDplus Chlorophyll a

Designed for a seamless workflow. The new SWiFT CTDplus Chlorophyll a is the latest in Valeport’s popular range of SWiFT profilers and delivers enhanced accuracy and versatility for those requiring combined CTD measurements and fluorometer observations.

Measured CTD with all the benefits of the SWiFT

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

Ease of use is at the heart of the SWiFT range and the new SWiFT CTDplus Chlorophyll a not only makes any problematic battery changes a thing of the past and 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 CTDplus Chlorophyll a features a new fast response temperature probe and operates down to 500m as standard, delivering directly measured Conductivity, Temperature and Depth with Chlorophyll a  observations. In addition, the SWiFT CTDplus Chlorophyll a 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 quickly and easily downloaded wirelessly and uses Valeport’s new Ocean software for Windows, iOS and Android. Data can be instantly shared in industry-standard data formats.

Download on the App Store Get it on Google Play

Download for PC

Multiple Applications

With an operational battery life of up to 5 days and the convenience of charging via USB, SWiFT CTDplus Chlorophyll a,  is intended for offshore, coastal, harbour and inland environmental and hydrographic survey use to 500m and offers the highest quality CTD profiles along with Chlorophyll a measurement in a compact, robust and portable package.

Valeport’s Hyperion Fluorometer, when combined with the SWiFT CTD, delivers high performance measurements of Chlorophyll a.

The story of SWiFT

From Belgium to Brazil, one of Valeport’s most successful profiling instruments is delivering results across the globe. But where did SWiFT start and how did it develop? Jay Nicholson, Head of Research and Development gives a glimpse behind-the-scenes at Valeport.

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Support

SWiFT CTDplus Chlorophyll a Datasheet
Download
SWiFT CTDplus Chlorophyll a Operating Manual
Download
Technical drawings

Software

Valeport Ocean - Windows
Download

Requires Window 10.0 or later.

Valeport Ocean - iOS
Download

Requires iOS 8.0 or later.
Requires iPadOS 8.0 or later.

Valeport Ocean - Android
Download

Requires Android 5.0 and up

Technical Specifications

Sensor Specifications

The SWiFT CTDplus Chlorophyll a is fitted with Valeport’s conductivity sensor, temperature compensated piezo-resistive pressure transducer, a new fast response thermistor temperature sensor and Valeport Hyperion Fluorometer.

Conductivity

Range
0-80 mS/cm
Resolution
0.001 mS/cm
Accuracy
±0.01 mS/cm

Temperature - Thermistor

Range
-5°C – +35°C
Resolution
0.001°C
Accuracy
±0.01°C
Response
<100m/s

Pressure

Range
50 Bar
Resolution
0.001% FS
Accuracy
±0.01% FS

Chlorophyll a

Excitation
470 nm
Detection
696 nm
Dynamic Range
0-800 μg/l
2 gain settings
0-40, 0-800, software controlled
Minimum Detection
(3x SD in RO water) - 0.025 μg/l
Linearity
0.99 R2
Response Time
0.03 - 2 sec

Calculated Parameters and Accuracy

Calculations based on the UNESCO international standard algorithm and Chen and Millero equation

Sound Velocity
~0.25 m/s
Salinity
±0.01 PSU
Density
±0.01 kg/m³

Physical

Materials
Housing - Titanium | Sensor Guard - Acetal |
Temperature Sensor - Titanium | Pressure Sensor - Titanium |
Conductivity Sensor - Polyurethane coated titanium with ceramic core
Depth Rating
500 m
Dimensions
ø78 mm x Length 350 mm
Weight
2.7 kg (in air) / 1.65 kg (in water)

Communications (set up and data offload)

USB
Serial
Bluetooth wireless technology
v4 - low energy

Electrical

Battery
Internal rechargeable Li-ion battery pack
Battery life
SWiFT Battery endurance depends on the sampling scenario used – contact Valeport for more information.

95 days endurance 2 profiles per day to 100 m*
33 days - 3 profiles a day to 500 m*
1.7 days continuous running (normal power mode)

(*Utilising Bluetooth Sleep mode)
Charging
USB
Typically, 1 hour fast charge will give 12 hours operation

Software

iOS and Android Valeport Ocean App for Bluetooth compatible mobile devices – instrument set up, data offload, display and translation to common data formats. Valeport’s Ocean PC software, with both USB cable and Bluetooth connectivity, for instrument setup, data extraction, display and translation to common data formats.

Instrument and data time is synchronised to GNSS, UTC

Ordering

0660049-FC-XX
SWiFT CTDplus Chlorophyll a Profiler
Titanium housing rated to 500 m
Supplied with
PC Bluetooth adapter
USB interface and charging cable 1.5 A charger
Valeport Ocean software
Operating manual
System transit case

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