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Oceanography

Aquadopp 6000 m

High-performance full ocean depth, single-point current meter with titanium housing

  • Full ocean-depth single-point current meter
  • Titanium housing
  • Diagnostics mode for mooring performance evaluation

Overview

With all the features and capabilities of the standard Aquadopp, the deepwater Aquadopp 6000 m current meter has been used and proven by oceanographers around the world for almost 20 years. Thanks to innovative data diagnostic features for challenging environments, it provides exceptionally high-quality 3D currents in a form factor that is easy to install in any type of mooring line configuration, or simply attached to a bottom or surface platform.

Raw magnetometer data can be stored for post calibration of compass when used without the inductive modem option.

  • Currents

Highlights

  • Full ocean-depth single-point current meter
  • Titanium housing
  • Diagnostics mode for mooring performance evaluation

Usage

  • Studies of deep-water currents
  • Studies of tidal currents
  • Attached to mooring lines
  • Measurements of unaffected currents from physical structures
  • In conjunction with riser monitoring systems
  • Alternative to conventional current meters with errors due to fouling
  • Combination of currents and high-accuracy CTD data
  • Near-bed current measurements from landers
  • Deep ocean mining support

Setup

Nortek deployment software allows users to customize their 600m Aquadopp deployment in a straightforward manner, providing guidance on deployment schemes, battery power and required internal memory.

Deployment

The 6000m Aquadopp is the ideal current meter for deep-water moorings with a designated mooring-specific head design available. The instrument is capable of very long-term, unsupported deployments thanks to its low power consumption, internal data collection and ability to run entirely on internal battery power.

Data

Nortek postprocessing software and/or display software is available for review, visualization, and processing of data, after deployment or in real time.

Download PDF

Maximum profiling range N/A
Cell size 0.75 m
Minimum blanking 0.50 m
Maximum number of cells 1
Measurement cell position 0.5-5.0 m (user-selectable)
Default position (along beam) 0.50-2.0 m
Velocity range ±5 m/s
Accuracy ±1% of measured value ±0.5 cm/s
Velocity precision Consult instrument software
Maximum sampling rate(output) 1 Hz
Internal sampling rate 23 Hz

Sampling Same as velocity
Resolution 0.45 dB
Dynamic range 90 dB
Transducer acoustic frequency 2 MHz
Number of beams 3
Beam width 3.4°

Maximum profiling range N/A
Cell size N/A
Minimum blanking N/A
Maximum number of cells N/A
Range/Velocity limitations N/A
Accuracy N/A
Max. sampling rate N/A

Cell zero acoustic frequency N/A
Maximum profiling range N/A
Number of beams N/A

Temperature: Thermistor embedded in head
Temp. range -4 to +40 °C
Temp. accuracy/resolution 0.1 °C/0.01 °C
Temp. time response 10 min
Compass: Magnetometer
Accuracy/resolution 2°/0.1° for tilt < 20°
Tilt: Liquid level
Accuracy/resolution 0.2°/0.1°
Maximum tilt 30°
Up or Down Automatic detect
Pressure: Piezoresistive
Range 6000 m
Accuracy/precision 0.5% FS / 0.005% of full scale

No. of channels 2
Supply voltage to analog output devices Three options selectable through firmwarecommands: 1) Battery voltage/500 mA, 2) +5 V/250 mA, 3) +12 V/100 mA
Voltage input 0-5 V
Resolution 16 bit A/D

Capacity 9 MB, can add 4/16 GB
Data record 40 bytes
Diagnostics record 40 bytes
Wave record N/A
Mode Stop when full (default) or wrap mode

Accuracy ±1 min/year
Backup in absence of power 4 weeks

I/O RS-232 or RS-422
Communication baud rate 300-115200 Bd
Recorder download baud rate 600/1200 kBd for both RS-232 and RS-422
User control Handled via "Aquadopp" software, ActiveX®function calls, or direct commands with binaryor ASCII data output

Bulkhead MCBH-8-FS titanium
Cable PMCIL-8-MP on 10 m polyurethane cable

Functions Deployment planning, instrument configuration,data retrieval and conversion (for Windows®)

DC input 9-15 V DC
Maximum peak current 3 A
Avg. power consumption 0.015 W
Sleep current < 100 μA
Transmit power 20 W

Battery capacity 50 Wh (alkaline or Li-ion), 165 Wh (lithium), Single or dual
New battery voltage 13.5 V DC (alkaline)

Operating temperature -5 to +40 °C
Storage temperature -20 to +60 °C
Shock and vibration IEC 721-3-4
EMC approval IEC 61000
Depth rating 6000 m

Standard model Titanium and POM

Maximum diameter 84 mm
Maximum length ~500 mm (single battery), +110 mm (double battery) depending on head configuration

Weight in air 7.6 kg
Weight in water 4.8 kg

1) Alkaline, lithium or Li-ion external batteries, 2) Inquire for different head configurations, 3) Inductive modem

A6L General Arrangement - NGA011-005 Rev.-
6KL & 6HL General Arrangement - NGA011-006 Rev.-
Paradopp 6000m 4-battery canister, GA - NGA011-024 Rev.-
A6P General Arrangement - NGA011-026 Rev.-

Declaration of conformity

Aquadopp, 6000 m depth rating

Symmetrical head (A6L)

Side-looking head, vertical mounting (6KL)

Side-looking head, horizontal mounting (6HL)

6000-m depth rating with standard housing for two batteries or one 100 Wh package

6000-m depth rating with short housing for one battery

9 MB of memory on motherboard (M8)

4 GB SD card data logger

Pressure sensor 0-6000 m (6000-m system)

10m RS232 polyurethane cable with 8-pin inline connector and USB converter

20m RS232 polyurethane cable with 8-pin inline connector and USB converter

30m RS232 polyurethane cable with 8-pin inline connector and USB converter

40m RS232 polyurethane cable with 8-pin inline connector and USB converter

50m RS232 polyurethane cable with 8-pin inline connector and USB converter

10m RS422 polyurethane cable with 8-pin inline connector and USB converter

20m RS422 polyurethane cable with 8-pin inline connector and USB converter

30m RS422 polyurethane cable with 8-pin inline connector and USB converter

40m RS422 polyurethane cable with 8-pin inline connector and USB converter

50m RS422 polyurethane cable with 8-pin inline connector and USB converter

Compass and tilt sensor

Without compass and tilt sensor

Data conversion to MATLAB format (*.mat)

Deployment planning, execution and recovery

New features, fixes and functionality

Note. Firmware for legacy systems (pre April 2008) with version numbers starting with 0. or 1.

Display of Aquadopp data

Converts Vector (.vec) files to .adv
Converts PolySync Vectrino (.vno) files to .adv
Converts Aquadopp (.aqd) and Vector (.vec) wave burst data to AWAC (.wpr) format

Processing of waves

Data processing and ready-to-print reporting software. Request quote for license

Analysis and processing of currents and directional waves. Request quote for license

Analysis and processing of current profiles. Request quote for license

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