Envco – Environmental Equipment

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 gage 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
• ADVOcean in an autonomous configuration
• 5MHz ADVOcean Probe with
• 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.

Velocity
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

Temperature
Resolution 0.01°C
Accuracy ±0.1°C
Power
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.