Nortek Signature Vm 1000K Hz Frame Frontview Dypetset

VESSEL-MOUNTED CURRENT PROFILER

Signature VM Coastal

The Signature VM package delivers vessel-mounted AD2CP capabilities based on present-day technology

Highlights

  • A coherent system that is quick andconvenient to operate
  • Fifth echosounder beam for sedimentmeasurements down to the bottom
  • Ethernet ADCP and GNSS hardware,offering tight network timing
  • Simultaneous current and depthinformation in one place
  • Outstanding bottom-track performance,even under challengingconditions
  • Straightforward data-acquisition andprocessing software

Overview

  • Until now, ADCP current surveys have been complex and time-consuming processes. A successful current survey depends on highly skilled personnel and the hardware set-up is unique, and challenging, for each vessel. This leads to concerns regarding interfacing, synchronization, offsets and mounting. A miscalculation in connection with any one of these factors can lead to errors that affect the final velocity data quality.

    Nortek’s vessel-mounted ADCP current survey package – called Signature VM – opens up new and unprecedented opportunities to the community, while offering operational convenience and reduced complexity. Data quality can be safeguarded, and both errors and initial installation time can be substantially reduced by using an integrated system where each is module is pre-qualified

Applications

  • Coastal research
  • Port and harbor mapping
  • Studies of tidal currents
  • Sediment transport studies

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    • Water velocity measurements for Signature VM1000

      Profiling range* 30 m
      Cell size 0.2–2 m
      Max no. cells 128
      Min. blanking 0.1 m
      Minimum accuracy 0.3% of the measured value ± 0.3 cm/s
      Velocity resolution 0.1 cm/s
      Maximum sampling rate 14 Hz
      No. of beams 4 slanted at 25 degrees
      *) Maximum range depends on acoustic scattering conditions and transmit power.
    • Water velocity measurements for Signature VM500

      Profiling range* 70 m
      Cell size 0.5–4 m
      Max no. cells 128
      Min. blanking 0.5 m
      Minimum accuracy 0.3% of the measured value ± 0.3 cm/s
      Velocity resolution 0.1 cm/s
      Maximum sampling rate 6 Hz
      No. of beams 4 slanted at 25 degrees
      *) Maximum range depends on acoustic scattering conditions and transmit power.
    • Bottom velocity measurements for Signature VM1000

      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 30 m
      Velocity resolution 0.01 mm/s
      Maximum sampling rate 4 Hz
    • Bottom velocity measurements for Signature VM500

      Single ping std @ 3 m/s 0.5 cm/s
      Long-term accuracy ± 0.1% / ± 0.1 cm/s
      Minimum altitude 0.3 m
      Maximum altitude 70 m
      Velocity resolution 0.01 mm/s
      Maximum sampling rate 2 Hz
    • Depth measurements for Signature VM1000

      No. of beams 1 vertical
      Maximum sampling rate 2 Hz
      Max. range 30 m
      Vertical resolution / accuracy 0.001 m / 1% of the measured value**
      **) Assuming a constant speed of sound
    • Depth measurements for Signature VM500

      No. of beams 1 vertical
      Maximum sampling rate 2 Hz
      Max. range 70 m
      Vertical resolution / accuracy 0.001 m / 1% of the measured value**
      **) Assuming a constant speed of sound
    • Echo intensity

      Sampling Same as velocity for slanted beams
      Resolution 0.5 dB
      Dynamic range 70 dB slanted beams
      No. of beams 4 slanted at 25 degrees
      Beam width 2.9°
    • Echosounder option for Signature VM1000

      No. of beams 1 vertical
      Maximum sampling rate 2 Hz
      Max. range 30 m
      Resolution 3 mm - 0.25 m
      Number of bins 10,000
      Transmit pulse length 16 μs - 0.5 ms
      Transmit pulse Monochromatic or pulse compressed (25% BW)
      Resolution / dynamic range 0.01 dB / 70 dB
    • Echosounder option for Signature VM500

      No. of beams 1 vertical
      Maximum sampling rate 1 Hz
      Max. range 70 m
      Resolution 6 mm - 0.5 m
      Number of bins 11,000
      Transmit pulse length 32 μs - 1 ms
      Transmit pulse Monochromatic or pulse compressed (25% BW)
      Resolution / dynamic range 0.01 dB / 70 dB
    • Other

      Temperature sensor range /accuracy -4 °C to 40 °C / 0.1 °C
      Pressure Piezoresistive
      Standard range 0-100 m (inquire for options)
      Accuracy/precision 0.1% FS / better than 0.002% of full scale
      Compass and tilt Solid-state magnetometer
      Data recording 16 GB (inquire for options)
      Data cable 20 m Ethernet cable (inquire for options)
      IO Ethernet
      DC Input 12–48 V DC
    • Environmental

      Operating temperature -4 °C to 40 °C
      Storage temperature -20 °C to 60 °C
      Vibration IEC 60068-1/IEC60068-2-64
      EMC approval IEC 61000
      Depth rating 300 m – Bottom track is limited to surface vessels
      Connectors Straight fitted MCBH6F (Ethernet)
      Housing Small instrument housing
      Material POM with titanium fasteners
    • Processing unit

      Processor/memory Intel i5/8 GB
      Hard disk SSD, 500 GB
      Operating system Windows® 10
      Housing Half 19” 2 HE case or 19” rack-mountable 1 HE
      Dimensions 265x110x340 mm or 480x45x325 mm
      Input 24 V DC, 20 W typical
      Total weight 5.75 or 3.80 kg
      Connections Power, Signature ADCP, AN_GNSS, 2x HDMI, 2xLAN, 3x USB, 1x RS-232 (optional)
    • Nortek Signature VM acquisition software

      Acquisition Signature VM - binary, GNSS compass - binary
      Timing < 0.6 s, IEEE1588/PTP for absolute timestamping (GNSS compass/Signature VM)
      Configuration Signature VM (partly)Advanced Navigation GNSS compass
      Display Vessel track in map, Bottom-track velocity, Velocity magnitude and direction, Echo amplitude, Echo correlation, Vertical depth, Vertical echogram; corrected volume backscatter
      Status Signature VM + AN_GNSS compass
      Output NMEA data strings online CSV, ASCII VMT, MATLAB, VMT, MATLAB, KML
    • GNSS compass

      Brand and model Advanced navigation GNSS compass
      Position accuracy (with dGNSS) / post-processed Horizontal: 0.6 m / 0.01 m, Vertical: 1.0 m / 0.02 m
      Heading accuracy / post-processed 0.2°/ 0.09°
      Supported navigation systems GPS L1, GLONASS G1, GALILEO E1, Beidou B1
      Optional High Accuracy RTK variant GPS L1_L2, GLONASS G1_G2, GALILEO E1_E5b, BeiDou B1_ B2
      Motion 9-axis IMU
      Communication Ethernet 10/100
      Timing PTP, NTP timeserver functionality
      Protocol NMEA0183, AN Packet protocol, TSS1, Simrad


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    • Main product

      01

      Signature1000 VM

      02

      Signature500 VM

    • Probe type /Head

      01

      5-beam head

    • Housing

      01

      Short, no room for battery (external battery canister for bottom mount use)

    • Memory

      01

      16 GB SD card data logger

      02

      64 GB SD card data logger

      03

      128 GB SD card data logger

    • Pressure sensor

      01

      Pressure sensor 0-100 m, 0.1% (standard) All other available Signature1000_500

    • Cables

      01

      AD2CP: 20 m Ethernet cable with MCIL6MP, Power/RJ45 at dry end (standard)

      02

      AD2CP: 10-100 m Ethernet cable (specify length) with MCIL6MP-PWR/RJ45

      03

      GNSS: GC-POE-CABLE-20M Ethernet cable for GNSS Compass 20 m (please inquire for other length)

    • Mounting

      01

      Vessel Mounted over the side

      02

      Vessel Hull mounted

      03

      Unmanned Surface Vehicle (USV) mounted (please inquire)

    • Other

      01

      Compass and Tilt sensor

      02

      AHRS

      03

      High Accuracy Heading GNSS (RTK)



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