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Nortek Awac 2 D Frontview

HORIZONTAL CURRENT PROFILER

2D Horizontal Profiler - 400 kHz

Up to 130 m horizontal profiling range; ideal for side-wall applications

Technical specification (PDF)
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Highlights

  • Up to 130 m horizontal profiling range
  • Ideal for wall-mounted applications
  • Corrosion-free housing

Overview

  • The 2D Horizontal Profiler is the ideal tool for current measurements from a physical structure in, for example, port entrances. This ADCP provides the two horizontal flow components at multiple distances from the mounting and is commonly used in online applications where immediate access to current data is critical.

Applications

  • Port entrances with challenging flow conditions
  • Flow measurements upstream and downstream of tidal turbines
  • Flow measurements from marine structures at draft depth

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    • Water velocity measurements

      Maximum profiling range 100-130 m
      Cell size 1.0-8.0 m
      Number of cells Typical 20-40, max. 128
      Velocity range ±10 m/s horizontal, ±5 m/s along beam
      Accuracy ±1% of measured value ±0.5 cm/s
      Velocity precision Consult instrument software
      Maximum output rate 1 Hz
      Internal sampling rate 3 Hz

    • Echo intensity

      Sampling Same as velocity
      Resolution 0.45 dB
      Dynamic range 90 dB
      Transducer acoustic frequency 400 kHz
      Number of beams 2, slanted at 25°
      Beam width 1.7°
      Beam width vertical beam N/A

    • Wave measurement option (AST)

      Maximum depth N/A
      Data types N/A
      Sampling rate velocity (output) N/A
      Sampling rate AST (output) N/A
      No. of samples per burst N/A

    • Wave estimates

      Range N/A
      Accuracy/resolution (Hs) N/A
      Accuracy/resolution (Dir) N/A
      Period range N/A
      Cut-off period (Hs) N/A
      Cut-off period (dir) N/A

    • Sensors

      Temperature: Thermistor embedded in housing
      Temp. range -4 to +40 °C
      Temp. accuracy/resolution 0.1 °C/0.01 °C
      Temp. time response < 5 min
      Compass: Magnetoresistive
      Accuracy/resolution 2°/0.1° for tilt <15°
      Tilt: Liquid level
      Accuracy/resolution 0.2°/0.1°
      Maximum tilt 30°
      Up or Down Automatic detect
      Pressure: Piezoresistive
      Range 0-100 m
      Accuracy 0.5% of full scale (optional 0.1% of full scale)
      Resolution 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
      Voltage input 0-5 V
      Resolution 16-bit A/D

    • Data recording

      Capacity 9 MB, can add 4/16 GB
      Profile record Ncells*9 + 120 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 1 year

    • Data communications

      I/O RS-232 or RS-422. Software supports most commercially available USB-RS-232 converters
      Communication baud rate 300-115200 Bd
      Recorder download baud rate 600/1200 kBd for both RS-232 and RS-422
      User control Handled via ”AWAC” software, or ActiveX®controls.
      Output formats NMEA, Binary. Prolog provides same types also for processed wave and current data

    • Connectors

      Bulkhead MCBH-2-FS, MCBH-8-FS, optional Souriau M-series metal connector for online use
      Cable PMCIL-8-MP on 10 m polyurethane cable

    • Software

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

    • Power

      DC input 9-18 V DC
      Maximum peak current 3 A
      Avg. power consumption Typical 1 W when sampling
      Sleep current < 100 μA
      Transmit power 1-30 W, 3 adjustable levels

    • Environmental

      Operating temperature -4 to +40 °C
      Storage temperature -20 to +60 °C
      Shock and vibration IEC 721-3-2
      EMC approval IEC 61000
      Depth rating 300 m

    • Materials

      Standard model POM and polyurethane plastics with titanium fasteners

    • Dimensions

      Maximum diameter 306 mm
      Maximum length 203 mm

    • Weight

      Weight in air 8.8 kg
      Weight in water 3.2 kg

    • Online cable

      Polyurethane jacket, Shore D hardness, 13 mm in diameter, max 2 km. Inquire for longer cables

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    • Main product

      01

      AWAC 400 kHz, two beams

    • Probe type / Head

      01

      2D

    • Memory

      01

      9 MB of memory on motherboard (M8)

      02

      4 GB SD card data logger

      03

      16 GB SD card data logger

    • Pressure sensors

      01

      Pressure sensor, 0-10 m

      02

      Pressure sensor, 0-20 m

      03

      Pressure sensor, 0-20m, accuracy 0,1% of FS

      04

      Pressure sensor, 0-30 m

      05

      Pressure sensor, 0-50 m

      06

      Pressure sensor, 0-50m, accuracy 0,1% of FS

      07

      Pressure sensor, 0-100 m

      08

      Pressure sensor, 0-100m, accuracy 0,1% of FS

      09

      Pressure sensor, 0-200m

    • 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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