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
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Full ocean-depth single-point current meter
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Titanium housing
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Diagnostics mode for mooring performance evaluation
Usage
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Studies of deep-water currents
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Studies of tidal currents
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Attached to mooring lines
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Measurements of unaffected currents from physical structures
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In conjunction with riser monitoring systems
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Alternative to conventional current meters with errors due to fouling
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Combination of currents and high-accuracy CTD data
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Near-bed current measurements from landers
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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.
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 |
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

Cable for external battery canister to 8-pin inline connector

Cable RS232 polyurethane with 8-pin inline connector and USB converter

Cable RS422 polyurethane with 8-pin inline connector and USB converter

Battery, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.

Battery pack, 5-pack, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery pack, 10-pack, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery pack, 5-pack, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery pack, 10-pack, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.

Battery pack, 5-pack, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.

Battery pack, 10-pack, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.