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Rugged build quality with high-end ADV® performance is what the ADVOcean is all about. Representing the ultimate solution to measuring precise 3D velocity in the most challenging environments, the ADVOcean/Hydra can be integrated with an array of external sensors for a complete oceanographic data collection system. With the optional RPT pressure sensor, this powerful system is able to sample both pressure and velocity at up to 25 Hz making it the definitive solution for studying nearshore processes.

ADVOcean/Hydra has a fixed sampling volume located 18 cm from the transmitter enabling precise 3D current measurement close to boundaries.

The Hydra (package option featuring the ADVOcean probe) is a fully integrated, 3-axis (3D), ocean sensor system that includes a powerful data acquisition system, a high-resolution velocity sensor, a strain gauge pressure sensor, and top-of-the-line sensors from other manufacturers all in one seamless package.

The SonTek/YSI ADVOcean (Acoustic Doppler Velocimeter Ocean Probe) is a versatile, high-precision instrument used to measure 3-axis (3D) water velocity in the most challenging application. The ADVOcean is designed for a wide range of environments, including the surf zone, open ocean, rivers, lakes, and estuaries. Extremely simple to set up and use, most users are collecting high-quality data within minutes of receiving the system.

Hydra Standard Features
• Integrated compass/tilt sensor
• Piezoresistive pressure sensor
• Processor electronics package in cylindrical underwater canister with
• 1 GB recorder
• Two alkaline battery packs
• ViewHydra Windows data analysis software

Hydra Optional Features
• Internal RPT silicon resonance pressure sensor
• SeaBird CT Sensor serial interface
• Optical Backscatter Sensor analog interface
• 10 MHz ADV Probe on stem or flexible cable with 10 cm distance to sampling volume
• ViewHydra Pro advanced data analysis software

Doppler technology has several inherent advantages that make it the preferred method for current measurement. Combining this with SonTek’s proven ability to develop instruments that are both powerful and easy-to-use, the Triton-ADV is the ideal choice for a wide range of applications.

Programmable Velocity Range Scales: 5, 20, 50, 200, 500 cm/s
Resolution: 0.1 cm/s
Accuracy: ±1% of measured velocity, ±0.5 cm/s at up to 25 Hz

Resolution: 0.01°C
Accuracy: ±0.1°C

Input: 12-24 VDC
Typical Continuous Operating Consumption: 2.5 to 4.0 W
Battery capacity — Alkaline, 2 packs: 1200 W•h

Compass/Tilt Sensor
Resolution — Heading, Pitch, Roll 0.1°
Accuracy — Heading ±2°
Accuracy — Pitch, Roll ±1°

Physical & Environmental
Operating Temperature: -5° to 45°C
Storage Temperature: -10° to 60°C
Depth Rating - Delrin probe: 400 m
Depth Rating - Stainless Steel probe: 400 m
Canister Dimensions - Diameter x Height: 16.5cm x 74.9cm

Hydra Optional Resonance Pressure Transducer (RPT) or Paroscientific
Accuracy: 0.01%
Maximum Depth - RPT: 20 m

Ordering Information:

P5-SS 5-MHz ADVOcean probe: 3-D down-looking, 18-cm distance to sampling volume sensor, temperature sensor. Stainless steel housing with wet-pluggable connector

EH-ADV-UW1 Real-Time System with an underwater housing (500m max. depth) containing the processing electronics

EH-ADV-UW3 Autonomous system (Hydra) with an underwater housing (500m max.depth) containing the processing electronics and 2 alkaline battery packs. Includes ViewHydra post-processing software.