Impact Subsea’s advanced sensing technology has enabled Zupt to significantly improve the precision and reliability of its subsea template positioning and metrology operations.
Zupt required highly accurate depth and altitude data to support critical underwater tasks, including the placement of large subsea structures and jumper/spool measurements, in environments where dependable instrumentation is essential.
By integrating the Impact Subsea ISD4000 Depth & Temperature Sensor and ISA500 Altimeter, Zupt gained survey-grade performance for both depth monitoring and underwater distance measurement. The ISD4000 delivers pressure-based depth readings with accuracy down to ±0.01% FS, while the ISA500 provides precise altitude measurements even when the template’s hydraulically extendable legs create variable seafloor clearance.
Zupt has been contracted to supply the full sensor suite and supporting services to monitor a 30-meter subsea template used in the installation of large-diameter monopile foundations. The combined sensor package allows operators to maintain continuous awareness of both depth and altitude, ensuring controlled, repeatable, and safe seabed operations.
Additional features, such as optional integrated AHRS for heading, pitch, and roll, maintenance-free design, and rugged titanium or acetal housings, further enhance reliability in demanding offshore environments.
Aidan Thirsk, Vice President, Commercial, Zupt LLC, said, “We’re very satisfied with the quality of Impact Subsea sensors; they’ve never let us down.”
Find out more on the Impact Subsea website.
