The Aquadopp Profiler is a highly versatile Acoustic Doppler Current Profiler (ADCP). The 1 MHz version has a current profiling range of up to 25 m. Designed for simple yet powerful operation, this current profiler is packed with features used by engineers and researchers to enable accurate and effective hydrodynamic data collection in a variety of environmental conditions.
- – Up to 25 m current profiling range
- – Right-angle head orientation
- – PUV wave measurements
Applications
- – 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 deep-water currents
- – Studies of tidal currents
- – Measurements of combinations of waves and currents
- – Suitable for wave buoys
- – This instrument is used to perform river discharge measurements by River Insight.
Water velocity measurements
| Maximum profiling range | 12-25 m |
| Cell size | 0.3-4 m |
| Minimum blanking | 0.20 m |
| Maximum number of cells | 96 |
| 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 | 7 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° |
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 | 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, 4 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 721-3-7 |
| EMC approval | IEC 61000 |
| Depth rating | 300 m (3000 m option) |
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 |
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