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CURRENT METER

Aquadopp 3000 m

Single-point current meter designed for very long-term deployments

  • Single-point current meter
  • Designed for very long-term deployments
  • Diagnostics mode for mooring performance evaluation
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Technical specification (PDF)
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Overview

  • With all the features and capabilities of the standard Aquadopp, the deepwater Aquadopp 3000 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.

Highlights

  • Single-point current meter
  • Designed for very long-term deployments
  • Diagnostics mode for mooring performance evaluation

Applications

  • Studies of deep-water currents
  • Studies of tidal currents
  • Attached to mooring lines
  • In conjunction with riser monitoring systems
  • Measurements of unaffected currents from physical structures
  • 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

    • Toggle all

    • Water velocity measurements

      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

    • Echo intensity

      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°

    • HR option

      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

    • Z-Cell option

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

    • Sensors

      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 3000 m
      Accuracy/precision 0.5% FS / 0.005% of full scale

    • Analog inputs

      No. of channels 2
      Supply voltage to analogoutput 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

    • Data recording

      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

    • Real-time clock

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

    • Data communications

      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

    • Connectors

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

    • Software

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

    • Power

      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

    • Batteries

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

    • Environmental

      Operating temperature -5 to +40 °C
      Storage temperature -20 to +60 °C
      Shock and vibration IEC 721-3-2
      EMC approval IEC 61000
      Depth rating 3000 m

    • Materials

      Standard model POM housing

    • Dimensions

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

    • Weight

      Weight in air 3.6 kg
      Weight in water 1.2 kg

    • Options

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

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    • Technical drawings

      3KL & 3HL General arrangement - NGA011-001 Rev.-

      Download this

      A3L General arrangement - NGA011-002 Rev.-

      Download this

      A3P General arrangement - NGA011-003 Rev.-

      Download this

      Paradopp 3000m 4-battery canister, GA - NGA011-025 Rev.-

      Download this

    • Approvals

      Declaration of conformity

      Download this

    • Toggle all

    • Main product

      01

      Aquadopp, 3000 m depth rating

    • Probe type / Head

      01

      Symmetrical head (A3L)

      02

      Side-looking head, vertical mounting (3KL)

      03

      Side-looking head, horizontal mounting (3HL)

    • Housing

      01

      3000-m depth rating with standard housing for two batteries or one 100 Wh package

      02

      3000-m depth rating with short housing for one battery

    • Memory

      01

      9 MB of memory on motherboard (M8)

      02

      4 GB SD card data logger

    • Pressure sensors

      01

      Pressure sensor 0-3000 m

    • Cables

      01

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

      02

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

      03

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

      04

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

      05

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

      06

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

      07

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

      08

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

      09

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

      010

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

    • Other

      01

      Compass and tilt sensor

      02

      Without compass and tilt sensor

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