





CURRENT METER
Aquadopp 300 m
Highly versatile single-point current meter with optional PUV wave measurements
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Overview
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The Aquadopp 300 m is a compact, accurate and affordable single-point current meter for applications where a current profile is not needed. Designed for use in a number of deployment scenarios from mooring lines to bottom-mounted structures, it comes with PUV-based directional wave measurement capability as standard, making it the best value in the industry.
Raw magnetometer data can be stored for post calibration of compass when used without the inductive modem option.
Highlights
- Single-point current meter
- Perfect for mooring lines
- PUV-based directional wave measurements
Applications
- Attached to mooring lines
- In conjunction with riser monitoring systems
- Measurements of unaffected currents from physical structures
- Shallow-water wave and current measurements
- Alternative to mechanical current meters with errors due to fouling
- Near-surface current measurements from surface buoys
- Studies of tidal currents
- Suitable for wave buoys
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Water velocity measurements
Maximum profiling range N/A Cell size 0.75 m Minimum blanking 0.35 m Maximum number of cells 1 Measurement cell position 0.35-5.0 m (user-selectable) Default position (along beam) 0.35-1.85 m Velocity range ±5 m/s Accuracy ±1% of measured value ±0.5 cm/s Velocity precision Consult instrument software Maximum sampling rate (output) 1 Hz, 4 Hz on request Internal sampling rate 23 Hz -
Echo intensity
Sampling Same as velocity Resolution 0.45 dB Dynamic range 90 dB Transducer acoustic frequency 2 MHz Number of beams 3 Beam width 3.4° -
HR option
Maximum profiling range N/A Cell size N/A Minimum blanking N/A Maximum number of cells N/A Range/Velocity limitations N/A Accuracy N/A Max. sampling rate N/A -
Z-Cell option
Cell zero acoustic frequency N/A Maximum profiling range N/A Number of beams N/A -
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 300 m Accuracy/precision 0.5% FS / 0.005% of full scale -
Analog inputs
No. of channels 2 Supply voltage to analog outputdevices Three options selectable through firmwarecommands: 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 40 bytes Diagnostics record 40 bytes Wave record 40 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 300-115,200 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 withbinary or ASCII data output -
Connectors
Bulkhead 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 0.01 W Sleep current < 100 μA Transmit power 0.3-20 W, 3 adjustable levels -
Batteries
Battery capacity 1) 50 Wh (alkaline or Li-ion), 2) 165 Wh (lithium), 3) 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 721-3-2 EMC approval IEC 61000 Depth rating 300 m -
Materials
Standard model POM housing -
Dimensions
Maximum diameter 75 mm Maximum length ~500 mm (single battery) or +110 mm (double battery) depending on head configuration -
Weight
Weight in air 2.3 kg Weight in water Neutral -
Options
1) Alkaline, lithium or Li-ion external batteries, 2) Inquire for different head configurations, 3) Inductive modem
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Technical drawings
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Approvals
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Main product
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Aquadopp, 300 m depth rating
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Probe type / Head
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Aquadopp mooring type transducer head (AQD)
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Asymmetric sensor head (AQA)
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Symmetric sensor head (AQS)
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Hockey Puck sensor head (APK)
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3-beam side-looking puck head (PCK)
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Inductive modem head (ALD)
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Custom transducer design
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Housing
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Standard housing for two batteries or one 100Wh package
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Short housing for one battery
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Extra short housing for no batteries
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Memory
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9 MB of memory on motherboard (M8)
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4 GB SD card data logger
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Pressure sensors
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Pressure sensor, 0-10 m
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Pressure sensor, 0-20 m
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Pressure sensor, 0-30 m
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Pressure sensor, 0-50 m
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Pressure sensor, 0-100 m
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Pressure sensor, 0-200m
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Cables
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10m RS232 polyurethane cable with 8-pin inline connector and USB converter
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20m RS232 polyurethane cable with 8-pin inline connector and USB converte
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30m RS232 polyurethane cable with 8-pin inline connector and USB converter
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40m RS232 polyurethane cable with 8-pin inline connector and USB converter
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50m RS232 polyurethane cable with 8-pin inline connector and USB converter
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10m RS422 polyurethane cable with 8-pin inline connector and USB converter
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20m RS422 polyurethane cable with 8-pin inline connector and USB converter
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30m RS422 polyurethane cable with 8-pin inline connector and USB converter
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40m RS422 polyurethane cable with 8-pin inline connector and USB converter
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50m RS422 polyurethane cable with 8-pin inline connector and USB converter
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Other
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Compass and tilt sensor
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Without compass and tilt sensor
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