Aanderaa Seaguard-II Doppler Current Profiler (DCP)

Description

The Aanderaa Seaguard-II DCP features innovative development of the acoustic profiling capacity and an exceptional ability to collect high-quality current information even on moving and tilting moorings. Available as a self-recording instrument, it also integrates unique real-time features to meet each application’s needs.

The SeaGuardII is a smart data hub that combines the SeaGuard electronics with the advanced management firmware of the Aanderaa SmartGuard data hub. SeaGuardII DCP is a 600kHz profiler with multi-sensor capability. By design, it offers increased deployment time, optimized configuration flexibility, and unique features to cope with demanding upper ocean environments.

It is available as 300m depth rated, 3000m, 4500m, or 6000m. Optional parameters are available using the Aanderaa range of smart sensors that include temperature, pressure, conductivity, oxygen, wave, tide, and turbidity. In addition, the SeaGuardII has 4 analog inputs, 2 serial ports with power control, and a direct connection for real-time data transmission.

Aanderaa Seaguard-II DCP Applications

• Buoy mounted
• Hyd/Met systems
• In mooring line with the upside-down possibility
• SeaGuardII DCP Dual Head (Two DCPS connected)
• Ocean observatory with sensors string
• Bottom mounted
• Multiparameter ocean observations the SeaGuardII has 4 analog inputs, 2 serial ports with power
• control, and a direct connection for real-time data transmission

Specifications | Velocity profile measurement

• Acoustic frequency: 600 kHz
• Typical profiling range: Broadband: 30-70m; Narrowband 35-80m
• Cell size: 0.5m – 5m
• Cell overlap: 0-90%
• Velocity range: Narrowband: 0-500 cm/s – (1000cm/s with max tilt ± 5°); Broadband: 0-400cm/s
• Velocity accuracy: 0.3cm/s or ±1% of reading
• Velocity resolution: 0.1cm/s
• Velocity precision: <3,3cm
• Ping rate: Up to 10Hz (config dependent)
• Cell positioning: Static (instrument referred), Dynamic (surface referred)
• Multiple columns: 3 simultaneous columns + Surface cell
• Max. number of cells: 150 total, 75 for first column, 50 for second and 25 for third
• Blanking zone: 1m

Aanderaa Seaguard-II DCP Transducers

• Number of beams: 4
• Beam angle: 25°
• Beam width: 2.5°

Echo intensity

• Dynamic range: > 50dB
• Resolution: < 0.01dB
• Precision: < 0.01dB

Tilt and compass

• Type: Internal solid state
• Pitch / roll range: ± 90°4) / ± 180°4)
• Tilt accuracy: <0.5°(RMS), ± 1.5°
• Heading accuracy: <2°(RMS), ± 3.5°
• Tilt / Heading resolution: < 0.1°

Embedded temp sensor 4080 (optional, on request)

• Range -4- +40°C
• Resolution 0,001°C
• Accuracy ± 0,05°C
• Response Time (63%): <5 sec

Communication and recording

• Aanderaa Seaguard-II DCP Data storage: 2GB SD Card /remote download
• Remote operation:
  – Device layout
  – Configuration
  – Recording start/stop
  – Status monitoring
• Available telemetry: Cable, radio modem, GPRS, GOES, Iridium
• Configuration and real-time data software: Real-Time Collector
• Configuration interface: USB / RS232 / RS422
• Recording system: Multiple sensors groups with individual recording interval.
• Recording interval: From 30 sec to 3 hrs

Aanderaa Seaguard-II DCP Power options

• External power supply: 12-30V
• Internal battery: 2 batteries inside the instrument: Alkaline 3988: 9V, 15Ah; Lithium 3908: 7V, 35Ah
• Current drain example: 4,2mA

Environmental

• Depth rating: 300m, 3000m, 4500m, 6000m
• Operating temperature:-5 to +40°C
• Dimensions: D: 160mm H: 585mm

Weight

• SW 10.8 kg (In Air) 3.6kg (In Water)
• IW 14.3 kg (In Air) 6.6kg (In Water)
• DW 15kg (In Air) 7.2kg (In Water)

Materials

• PET, PUR, Titanium, Stainless steel 316, polyurethane

Aanderaa Seaguard-II DCP Optional Sensors

Temperature Sensor 4060

• Range: -4-36°C (32-96.8°F)7)
• Resolution: 0.001°C (0.0018°F)
• Accuracy: ±0.03°C (0.054°F)
• Response Time 63%: < 2 sec
• Conductivity Sensor 4319
• Range: 0-7.5 S/m
• Resolution: 0.0002 S/m
• Accuracy:
  – 4319 A: ±0.005 S/m
  – 4319 B: ±0.0018 S/m
• Response Time: <3 sec

Pressure Sensor 4117

• Range: Several ranges available to 60MPa
• Resolution: <0.0001% FSO
• Accuracy:
  – ±0.02% FSO standard
  – ±0,01% FSO on request for sensors
  – 0-10MPa

Aanderaa Seaguard-II DCP Wave and Tide Sensor 5217/5218

• Range: Several range available to 60MPa Wave max 1000kPa
• Resolution : <0,0001% FSO
• Accuracy:
  – ±0,02% FSO standard
  – ±0,01% FSO on request for sensors
  – 0-10MPa
• Wave: Sampling rate: 2Hz, 4Hz
• Samples: 256, 512, 1024, 2048

Turbidity Sensor 4112: 0-5V Analog Output

• 4 models: 0-25, 0-125, 0-500, 0-2000FTU

Oxygen Optode 4835/43308): O2-Concentration Air Saturation

• Measurement Range: 0–500 μM 0 -150%
• Resolution: < 1 μM 0.4 %
• Accuracy: <8 μM or 5%9)<5 % whichever is greater
• With multipoint calibration: <±2 µM or ±1.5%
• Response Time (63%):
  – 4330F (fast response foil) <8 sec
  – 4835/4330 (standard foil) <25 sec
• Analog and serial inputs:
  – Analog: 4 channels 0-5V
  – Serial: 2 channels with sensor and power switching one RS232 port and one RS422

Download Datasheet: Aanderaa SeaguardII DCP

Refernce: aanderaa.com

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