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SWiFTplus Turbidity

Valeport’s SWiFTplus Multi-Parameter Profiler with a Turbidity sensor combines survey-grade sound speed, temperature and pressure sensor technology with Turbidity observations.

The package is completed with the convenience of Bluetooth connectivity, rechargeable battery and an integral GPS module to geo-locate each profile.

  • Multi-Parameter Profiler
    • CTD, Sound Speed, Salinity, Density
    • Up to 32Hz sampling rate
    • Dual Optical Backscatter (OBS) and Nephelometer Turbidity Sensor
  • Bluetooth and USB connectivity
  • Integral GPS receiver for geo-location of profile and time synchronisation
  • Rechargeable Lithium-ion Battery
  • Dedicated PC software and iOS portable device App

Valeport’s Turbidity technology is essentially two sensors in one. The first is a “classic” nephelometer, using a 90˚ beam angle for turbidity levels between 0 and 2,000 NTU. The second sensor uses Optical Backscatter (OBS) for turbidity levels up to 10,000 NTU. The sensors output data separately and simultaneously at a programmable rate. This means that there is no need to switch ranges as conditions vary. Intelligent sampling and the use of a 24 bit ADC eliminates the need to switch gain.


Support

SWiFTplus Turbidity Datasheet
SWiFTplus Operating Manual
Connect Operating Manual

Software

Connect
1.0.7.0
Connect iOS
1.5.12

Technical Specifications

Sensor Specification

Turbidity

Linear Range
Nephelometer: 0 to >1 ,000 NTU - linear response1 OBS: 0 to >4,000 NTU - linear response 1 & 2 1 depending on suspended material 2 >4,000 NTU has a non-linear monotonic response that allows derivation of higher values using look-up tables\secondary calibration
Linearity
0.99 R2
Minimum Detection Level
0.03 NTU (Nephelometer)

Conductivity#

Range
0 - 80 mS/cm
Resolution
0.001 mS/cm
Accuracy
±0.05 mS/cm

Temperature (Platinum Resistance Thermometer)

Range
-5°C - +35°C
Resolution
0.001°C
Accuracy
±0.01°C

Pressure (Temperature compensated piezo-resistive pressure transducer)

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

Sound Velocity (Digital time of flight sensor)

Range
1375 – 1900 m/s
Resolution
0.001 m/s
Accuracy
±0.02 m/s

Salinity#

Range
0 - 42 PSU
Resolution
0.001 PSU
Accuracy
±0.05 PSU

Density

Range
990 - 1035 kg/m3
Resolution
0.001 kg/m3
Accuracy
±0.05 kg/m3
#Calculated Accuracies. Calculations based on Valeport’s proprietary DASH formula.

Physical dimensions

Materials
Housing: Titanium
Sinker weight: Stainless steel
Optical window: Sapphire glass
Depth rating
500m
Dimensions
Ø78mm x Length 307mm (with sinker weight)
Weight
2.7kg (in air) / 1.7kg (in water) including optional sinker weight

Communications (set-up and data offload)

Bluetooth v4 - low energy USB Serial

Electrical

Battery
Internal rechargeable Li-ion battery pack
Charging
USB - Supplied mains AC adapter

Software

- Connect iOS for Bluetooth compatible mobile devices: - instrument set-up, data offload and data display · Connect PC for both USB and Bluetooth connectivity: - instrument set-up, data offload and data display · Both will export data in common file formats that are compatible with industry standard Hydrographic software packages - Android App to follow

Ordering

0660047-50-Tu
SWiFTplus profiler with Turbidity sensor - 500m rated
Supplied with:
· Deployment weight
· PC Bluetooth adapter
· USB interface and charging cable and charger
· Valeport Connect PC software \ iOS App
· Transit Case

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Valeport's CTD & Environmental Range