Deep Water Icone
The Deep Water Icone is a pressure-compensated digital cone designed for highly accurate bottom Cone Penetration Tests (CPTs) at depths of 500 to 4,000 meters below sea level. Thanks to pressure compensation, the cone measures reliably relative to the local hydrostatic pressure, with high accuracy across the entire depth range.
Reliable at great depths
Hydrostatic pressure increases with depth. Although the standard Icone measures reliably up to approximately 1,500 meters, the variations in water pressure at greater depths become too small in relation to the sensor range. The Deep Water Icone has been specifically developed to accurately measure excess pore pressure at great depths โ essential for offshore foundation investigations and oil and gas installations.
Like the standard Icone, the Deep Water Icone measures four parameters: cone tip resistance (qc), sleeve friction (fs), pore water pressure (u2) and inclination (Ix/y).
Compatibility
The Deep Water Icone can be used with all ROSON and WISON-APB wireline CPT systems. For deep-sea applications, we recommend using the Deep Water ROSON and the WISON-APB-3000.
A.P. van den Berg has been supplying innovative CPT solutions for offshore soil investigations since the 1980s. The Deep Water Icone is part of the digital Icone system, consisting of the Icontrol data logger and Ifield software for real-time data processing.
Reliable measurements Why the Deep Water Icone?
- Reliable measurements at water depths of up to 4,000 meters
- Pressure compensated for accurate measurement of water pressure (u2).
- Real-time data display with Ifield software
- ISO 22476-1:2022 calibrated
Technical specifications Deep Water Icone
| Feature | Nominal / Maximal range |
| Cone tip resistance (qc) | 75 / 150 MPa |
| Sleeve friction (fs) | ย 1 / 1,5 MPa |
| Pore water pressure (u2) | ย 2 / 3 MPa |
| Inclination (lx/Iy) | ย 15 / 25ยฐ |
| Resolution | 24 bits (inclination 16 bits) |
| Memo function | 16 Mbit (for approx. 8 hours of CPT’s) |
| Cone | 10 cmยฒ |
Deep Water Icone in the spotlight
Want to know more about the possibilities?
Interested in our Deep Water Systems, modules, or Ifield CPT software?
Want to know more about our CPT data systems?
Discover which CPT data systems and click-on modules are best suited for your situation. Contact Irina Antonova, our Commercial Sales Representative, for expert advice, specifications, and quotations.


