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Falmouth Scientific, Inc. (FSI)
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  5. FSI - Model ACM-WAVE-PLUS - Directional ...

FSI - Model ACM-WAVE-PLUS -Directional Wave and Current Meter

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The ACM-WAVE-PLUS from Falmouth Scientific, Inc. provides wave direction, wave height, and other wave statistics by combining FSI’s enhanced ACM-PLUS acoustic current meter technology with a high- accuracy, micro-machined silicon pressure sensor.
The instrument can be deployed in a multiple-mode format to allow periodic burst sampling of wave data as well as long-term averaging.

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Wave Direction and Height with vector-averaged 3D Current Speed and Direction in a Single Instrument

Enhanced Design, Performance, Specifications

The ACM-WAVE-PLUS includes advanced standard features such as extended on-board data memory, fast download capability, high accuracy real-time clock, and high speed data sampling.

The ACM-WAVE-PLUS comes complete with FSI’s Windows-based ACMProPLUS software for system configuration and data download, as well as our WavePost software for graphics display and advanced post-processing.

The device may also be equipped with an optional CTD module, and can be configured to log up to two analog inputs from external sensors (e.g., DO, OBS, Fluorometer, Transmissometer).

  • 3D Current Speed & Direction
  • 3D Wave Height & Direction
  • True Tide & Added Barometer

  • High-accuracy wave data, precise pressure sensor
  • Built-in 3-Axis ACM with excellent low-velocity resolution
  • Electronic magneto-resistive compass, 2-axis tilt sensor
  • Fast Data Sampling up to 5 Hz; Fast Data Download
  • Long-term data logging to 2 GigaByte internal memory
  • Built-in High Accuracy real-time clock
  • 1.5-ton working strength mooring frame standard; optional 5-ton mooring frame
  • Optional conductivity, temperature, pressure sensor package (CTD) may be added
  • External Power: 8 to 32 VDC
  • Current Draw: Typical 60 mA at 1 Hz sample rate; Sleep 1.0 mA battery, 3.5 mA external power
  • Battery Power: Alkaline 5 D Cell Welded Pack, 10 AHR
  • Internal Memory: 2.0GB Standard
  • Sample Rate: 5 Hz Maximum
  • Vector Averaging Period: User Selectable up to 59 Min:59 Sec
  • Real Time Clock: Programmable High Accuracy Sampling / Low-power Mode
  • Sampling Modes: Continuous, Interval, and Delayed Start (continuous or interval)
  • Clock Stability: +/- 2ppm (0-40 degrees C);
  • +/- 4ppm (-40 degrees C to +85 degrees C)
  • Optional Input Channels: Two (2) 0-5V DC Input Channels with 12 bit A/D resolution available for external sensor input (Regulated 12 VDC, 1.5W provided to power external sensors)
  • Depth Rating/Physical Material: 200 Meter Epoxy Housing Standard, P/N: ACM-WAVE-PLUS
  • Mooring Frame: 1.5 Ton Rated 316 Stainless Steel Mooring Frame (Standard); 27” x 9.25” square (approx.)
    • 5 Ton Rated 316 Stainless Steel Mooring Frame (Optional); 39” x 9.4” square (approx.)