CURRENT PROFILER

Aquadopp Z-Cell 1 MHz

Up to 25 m current profiling range and no blanking; can measure near-surface or near-bottom currents

Highlights

  • Up to 25 m current profiling range
  • Capable of measuring surface or bottom currents
  • PUV-based directional wave measurements

Overview

  • Need to collect accurate 3D currents very near the seabed or sea surface, in addition to a full water-column profile?

    The Z-Cell (Zero Cell) Aquadopp allows current measurement to start right at the instrument’s level through an innovative approach: it has side-looking beams fully integrated into the instrument’s head, effectively removing the blanking distance normally applicable to ADCPs.

Applications

  • Mounted on bottom frames, with ability to measure also near-bed currents
  • Mean flow measurements with high focus on ease of use and simplicity
  • Measurements in flow regimes with strong variations in flow speeds
  • Projects with needs for both high-resolution and normal-range current measurements
  • Studies of tidal currents
  • Measurements of combinations of waves and currents
  • Mounted on surface buoys, with the ability to measure also surface currents
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    • Water velocity measurements

      Maximum profiling range 12-25 m
      Cell size 0.3-4 m
      Minimum blanking 0.20 m when profiling; 0 m when Z-Cell enabled
      Maximum number of cells 128
      Measurement cell position N/A
      Default position (along beam) N/A
      Velocity range ±10 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 6 Hz
    • Echo intensity (along slanted beams)

      Sampling Same as velocity
      Resolution 0.45 dB
      Dynamic range 90 dB
      Transducer acoustic frequency 1 MHz
      Number of beams 3
      Beam width 3.4°
    • HR option (Z-Cell will be disabled)

      Maximum profiling range 6 m
      Cell size 20-300 mm
      Minimum blanking 0.2 m
      Maximum number of cells 128
      Range/Velocity limitations Product of profiling range and velocity should not exceed 1.0 m2/s
      Accuracy ±1% of measured value ±0.5 cm/s
      Max. sampling rate 1 Hz (continuous mode), 8 Hz (burst mode)”
    • Z-Cell option

      Cell zero acoustic frequency 2 MHz
      Maximum profiling range 0.4-0.9 m
      Number of beams 3
    • 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 0-100 m (inquire for options)
      Accuracy/precision 0.5% FS / 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
      Data record 9*Ncells + 32 bytes
      Diagnostics record N/A
      Wave record Nsamples * 24 + 60 bytes
      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 binary or ASCII data output
    • Connectors

      Bulkhead (Impulse) 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 0.05 W
      Sleep current < 100 μA
      Transmit power 0.3-20 W, 3 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)
    • Environmental

      Operating temperature -5 to +40 °C
      Storage temperature -20 to +60 °C
      Shock and vibration IEC 721-3-7
      EMC approval IEC 61000
      Depth rating 300 m
    • Materials

      Standard model POM and polyurethane plastics with titanium fasteners
    • Dimensions

      Maximum diameter 75 mm
      Maximum length ~550 mm (single battery), +110 mm (double battery) depending on head configuration
    • Weight

      Weight in air 2.2 kg
      Weight in water 0.2 kg
    • Options

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

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    • Technical drawings

    • Approvals


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    • Main product

      01

      Aquadopp Z-Cell 1MHz (+2MHz)

    • Probe type / Head

      01

      1 MHz Z-Cell Head - A1Z

    • Housing

      01

      Standard housing for two batteries or one 100Wh package

      02

      Short housing for one battery

      03

      Extra short housing for no batteries

    • 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, 0-30 m

      04

      Pressure sensor, 0-50 m

      05

      Pressure sensor, 0-100 m

      06

      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

    • Others

      01

      Compass and tilt sensor

      02

      Without compass and tilt sensor




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