High-accuracy acoustic current meters with vector-averaged current speed and direction ACM-PLUS – user selectable 2D or 3D point velocity measurements with internal compass and tilt correction for deep (ACM-PLUS-7000) or shallow (ACM-PLUS-200) water
Enhanced features:

• Extended internal memory (2 Gigabytes)

• Fast data sampling up to 10 Hz

• Fast data download

• High accuracy real-time clock

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3D Wave Height & Direction Meter with built-in ACM; burst sampling and long-term averaging (3D-Wave)

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Moored Profiler 3D acoustic current meter (3ACM-SBP-MM) – Separate velocity head is less sensitive to currents caused by profiler equipment 

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Acoustic Phase-Shift Transit-Time Technology:

• Eight transducers define four acoustic transit-time paths

• Accurate even near surface and seabed

• Accurate low- and high-velocity measurement

• Measures very clear as well as turbid water

• (no reflectors required)

• Economical 2 or 3 dimensional point velocity (X,Y converted to N,E using compass/tilt sensors)

• Internal recording and real-time output

• Optional CTD for salinity/sound velocity

 

Product Features:

• Compact, lightweight, low-maintenance construction

• Simple to operate

• 2- or 3-axis true cosine response velocity measurement

• Accurate velocity measurement with excellent low-velocity resolution

• Built-in compass with 2-axis tilt sensor

• Temperature measurement capability

• Extremely long battery life with low-maintenance alkaline batteries

• Real-time output/display capability

• Averaged and/or burst data output

• Long-term data logging to internal flash memory

• ASCII serial data output via RS-232 or RS-485

• Built-in real-time clock with on/off power control

• 1.5-ton working strength mooring frame (optional 5-ton mooring frame)

• Optional conductivity, temperature, pressure sensor package may be added

• Optional Analog DC channel inputs for external sensors (e.g. turbidity, oxygen)

• Choice of epoxy shallow-water or titanium deep-water housings

 

Application Briefs:

• Buoy-Mounted Current Meter (Download)

• ACM Total Shipboard Solution (Download)