Do you, or your clients, need reliable, long-term ocean data for your operations? If so, PIES is your solution. Our Pressure Inverted Echo Sounders (PIES) deliver precise, long-lasting measurements of sound velocity through the water column from the seabed to the surface.
Imagine the possibilities
Boost your operations: Make informed decisions with a deeper understanding of ocean currents and seismic activity.
Save time and money: Deploy PIES for up to five years, reduce personnel costs and environmental impact through unmanned data retrieval.
Uncover hidden insights: Combine PIES data with other geophysical measurements for a comprehensive view of the ocean floor.
PIES is designed to seamlessly integrate into your system:
Sonardyne transponders provide Allton with reliable deepwater node recovery in challenging offshore conditions, ensuring secure data retrieval for seismic, EM and carbon capture projects.
• 3,000 m depth rated
• Up to five-year deployment life
• Monitor for months or years – PIES is engineered for sustained observation campaigns
• PIES helps oceanographers and geophysicists to better understand the physical processes that occur deep in the ocean
• Anti-trawl frame option available
• Customisable sensor payload options
• Glass sphere or hard anodised aluminium housing options
• Easy to set up with configuration and sampling period programmable via modem
• 190–202 dB transmit source level
• LMF (14–19 kHz) operating frequency
• Integrated modem with data rates ranging from 100 to 9000 bps
• Warranty: 1 year return to Sonardyne service centre
• ITAR Controlled: No
• UK Export License: not required
| Feature | Type 8302-3116 | ||
|---|---|---|---|
| Depth rating | 3,000 m | ||
| Operating frequency | LMF (14–19 kHz) | ||
| Transmit source level (dB re 1 µPa @ 1 m) | 190–202 dB | ||
| Battery life | Typically 3+ years, dependent on sensors and sampling interval | ||
| Internal battery | Lithium primary or alkaline | ||
| Mechanical construction | Hard anodised aluminium housing, duplex stainless steel guards | ||
| Weight in air/water* | 30.6/16.1 kg | ||
| Sensors and options | |||
| Temperature (±0.1°C) | Standard | ||
| Tilt switch (±30–45°) | Standard | ||
| Paroscientific DigiQuartz pressure sensor (±0.01%) 4130 fitted as standard (other options available) |
Standard | ||
| Release mechanism (screw-off) | Standard | ||
| High accuracy inclinometer Range: ±90° Accuracy: ±0.05° over 0–±15°; ±0.2° over 0–±45° |
Optional | ||
| Sound velocity sensor ±0.02 m/s accuracy under calibration conditions |
Optional | ||
| Connector type | Subconn MCIL8M | ||
| * Estimated weights | |||
| Note: See Compatt 6 and AMT datasheets for more information |
