VELOCIMETER

Vector - 4000 m

Investigate 3D velocity in the bottom boundary layer down to depths of 4000 m

  • Small-scale turbulence
  • Sampling up to 64 Hz
  • Small sampling volume for measurements close to boundaries
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Overview

  • The Vector is a high-accuracy single-point current meter that is capable of acquiring 3D velocity in a very small volume at rates up to 64 Hz. It is widely used for sediment transport applications, small-scale turbulence measurements and coastal engineering studies. It has an excellent track record of delivering outstanding data quality in a variety of applications. This titanium version of the Vector is suitable for investigating deep-water currents down to depths of 4000 m.

Highlights

  • Small-scale turbulence
  • Sampling up to 64 Hz
  • Small sampling volume for measurements close to boundaries

Applications

  • Studies of bottom boundary layers
  • Studies of deep-water currents
  • Ocean engineering projects
  • Low flow measurements
  • Flux measurements
  • Deep ocean mining support

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    • Water velocity measurements

      Maximum profiling range N/A
      Distance from probe 0.15 m
      Sampling volume diameter 15 mm
      Sampling volume height (user-selectable) 5-20 mm
      Cell size N/A
      Velocity range ±0.01, 0.1, 0.3,1, 2, 4, 7 m/s (software-selectable)
      Adaptive ping interval N/A
      Accuracy ±0.5% of measured value ±1 mm/s
      Velocity precision typ. 1% of velocity range (at 16 Hz)
      Sampling rate (output) 1-64 Hz
      Internal sampling rate 100-250 Hz
    • Distance measurements

      Minimum range N/A
      Maximum range N/A
      Cell size N/A
      Accuracy N/A
      Sampling rate N/A
    • Echo intensity

      Acoustic frequency 6 MHz
      Resolution 0.45 dB
      Dynamic range 90 dB
    • Sensors

      Temperature: Thermistor embedded in end bell
      Temp. range -4 to +40 °C
      Temp. accuracy/resolution 0.1 °C/0.01 °C
      Temp. time response 10 min
      Compass: Magnetometer
      Accuracy/resolution 2º/0.1º for tilt < 20°
      Tilt: Liquid level
      Accuracy/resolution 0.2°/0.1°
      Maximum tilt 30°
      Up or Down Automatic detect
      Pressure: Piezoresistive
      Range 0-4000 m
      Accuracy/precision 0.5% FS / Better than 0.005% of full scale
    • Analog inputs

      No. of channels 2
      Supply voltage to analog output devices Three options selectable through firmware commands: 1) Battery voltage/500 mA, 2) +5 V/250 mA, 3) +12 V/100 mA
    • Data recording

      Capacity (standard): 16 GB
      Data record (Standard) 24 bytes at sampling rate + 28 bytes/second
      Data record (IMU) 72 bytes at sampling rate
    • 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 300-115 200 Bd
      Recorder download baud rate 600/1200 kBd for both RS-232 and RS-422
      User control Handled via ”Vector” software, ActiveX® function calls, or direct commands.
      Analog outputs 3 channels standard, one for each velocity component or two velocities and pressure.
      Output range 0–5 V, scaling is user-selectable.
      Synchronization TTL (5 V tolerant) sync in/sync out, start on sync, sample on sync
    • 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®).
    • Multi unit operation

      Software N/A
      I/O N/A
    • Power

      DC input 9-15 V DC
      Maximum peak current 3 A
      Max. consumption 1.5 W at 64 Hz
      Typical consumption, 4 Hz 0.6 - 1 W
      Sleep consumption < 100 μA
      Transmit power 2 adjustable levels
    • Batteries

      Battery capacity 50 Wh (alkaline or Li-ion),165 Wh (lithium), single or dual
      New battery voltage 13.5 V DC (alkaline)
      Data collection capacity Refer to planning section in software
    • Environmental

      Operating temperature -4 to +40 °C
      Storage temperature -20 to +60 °C
      Vibration IEC 60068-1/IEC60068-2-64
      Depth rating 4000 m
    • Materials

      Standard model Titanium housing. Titanium probe and fasteners
    • Dimensions

      Maximum diameter 84 mm
      Maximum length 485 mm (housing only), 246 mm (fixed stem) add 110 mm for double battery
    • Weight

      Weight in air 8.3 kg
      Weight in water 5.1 kg
    • Options

      Probe mounted on fixed stem or on 2 m cable
      Vertical or horizontal probes
      Alkaline, lithium or Li-ion external batteries
      IMU - Inertial Measurement Unit

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    • Technical drawings


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    • Main product

      01

      Vector single point current meter, 4000m pressure rating

    • Probe type / Head

      01

      Standard probe on fixed stem, vertical instrument mounting (VEC)

      02

      Standard probe on fixed stem, horizontal instrument mounting (VEH)

    • Housing

      01

      Standard housing for two batteries or one 100Wh package

      02

      Short housing for one battery

    • Memory

      01

      16 GB SD card data logger

    • Pressure sensors

      01

      0-10m pressure sensor

      02

      0-20m pressure sensor

      03

      0-30m pressure sensor

      04

      0-50m pressure sensor

      05

      0-100m pressure sensor

      06

      0-200m pressure sensor

      07

      0-4000m pressure sensor (4000m version only)

    • 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

      With or without IMU

      02

      With or without compass and tilt



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