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Nortek DVL 1 M Hz 4000 side2 1
Nortek DVL 1 M Hz 4000 front
IMG 0139
Nortek DVL 1 M Hz 4000 side2 1 Nortek DVL 1 M Hz 4000 front IMG 0139

DOPPLER VELOCITY LOG

DVL1000 - 4000 m

Bottom-track from over 0.2 to 75 m range; 4000 m max. operational depth

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Technical specification (PDF)
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Overview

  • The DVL1000 is the world’s smallest survey-grade Doppler Velocity Log. It combines compact design with unprecedented functionality, being able to fly higher in the water column and closer to the seabed than similar equipment. It has a maximum operational depth of 4000 m and is ideally suited for subsea navigation where size and weight are a concern. This 1 MHz Doppler Velocity Log is used by
    industry leaders in the subsea market because of its high accuracy and state-of-the-art technology.

Highlights

  • Industry-wide acceptance
  • Bottom track from 0.2-75 m range
  • Quality estimates - per beam and ping

Applications

  • Observation-class ROVs and AUVs
  • Near-bottom operations
  • Highly accurate subsea surveys
  • Easy integration with high-grade INS

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    • Bottom velocity

      Single ping std @ 3 m/s 0.5 cm/s
      Long-term accuracy ±0.1% / ±0.1 cm/s
      Minimum altitude 0.2 m
      Maximum altitude 75 m
      Velocity resolution 0.01 mm/s
      Maximum ping rate 8 Hz max

    • Water tracking

      Minimum accuracy 0.3% of measured value ± 0.3 cm/s
      Minimum range 2.0 m

    • Current profiling

      Minimum accuracy 0.3% of measured value ± 0.3 cm/s
      Velocity resolution 0.1 cm/s
      Interval User-specified Nth ping
      Maximum range 30 m
      Blanking 0.1 m
      Cell size 0.2-2.0 m
      Max # cells 150

    • Environmental

      Operating temperature -4 to +40 °C
      Storage temperature -20 to +60 °C
      Vibration IEC60068-2-64
      EMC approval IEC/EN 61000-6-2, 61000-6-3

    • Mechanical

      Depth rating 4000 m
      Weight 2.7 kg
      Weight in water 1.7 kg
      Height 164 mm
      Diameter ø114 mm

    • Hardware

      Frequency of operation 1 MHz
      Beam width 2.9° 2.9°
      Configuration 4-beam Janus array convex transducer, 25° beam angle
      Internal memory 16 GB / 64 GB optional
      Frequency of operation 500 kHz
      Bandwidth 25% centered at transmit frequency

    • Interfaces

      Serial (either serial or ethernet) Configurable RS232 or RS422, 8-pin male
      Ethernet 10/100 Mbits Auto MDI-X.TCP/IP, UDP/IP, HTTP protocols. Fixed IP / DHCP client /Auto IP address assignment. UPnP and Nortek proprietary instrument discovery over Ethernet. IEEE1588/PTP and NTP for absolute time stamping.Multiple simultaneous data format transmission possible.
      Data formats Nortek proprietary w/ 1 ms time stamp accuracy, NMEA0183, Variants of PDx
      Trigger Internal 1, 2, 3, 4, 5, 6, 7 or 8 Hz or Trigger In. Trigger option through command (Ethernet or serial) External TTL or 485 lines: (configurable Rising/Falling/Edges)

    • Sensors

      Pressure 0.1% FS /precision better than 0.002% of full scale per sample
      Temperature -4° to +40 °C ± 0.1 °C

    • Power

      DC input 12-48 V
      Maximum continuous current 1.5 A
      Average power 1.3 W*
      * Power based on 1 Hz sampling and altitude with greatest transmit pulse.

    • Materials

      Standard models POM and titanium housing

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    • Main product

      01

      DVL1000, 4000m

    • Probe type / Head

      01

      4 beam head

    • Housing

      01

      Titanium housing, 4000m rated

    • Memory

      01

      16 GB SD card data logger

      02

      64 GB

    • Pressure sensors

      01

      Pressure sensor 0-10 m, 0,1%

      02

      Pressure sensor 0-20 m, 0,1%

      03

      Pressure sensor 0-30 m, 0,1%

      04

      Pressure sensor 0-50 m, 0,1%

      05

      Pressure sensor 0-100 m, 0,1%

      06

      Pressure sensor 0-200m, 0,1%

      07

      Pressure sensor 0-500m, 0,1%

      08

      Pressure sensor 0-1000m, 0,1% (DVL1000, 4000m only)

      09

      Pressure sensor 0-4000m, 0,1% (DVL1000, 4000m only)

    • Cables

      01

      Cable, 8 pin female ethernet AD2CP with RS485 trigger

      02

      Cable, 8 pin female serial AD2CP with RS485 trigger

      03

      Cable, 8 pin female ethernet AD2CP with TTL trigger

      04

      Cable, 8 pin female serial AD2CP with TTL trigger

    • Other

      01

      Bottom track

      02

      Current profiles, 4 beams

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