The Deepwater Polatrak DR-2 CD polarization monitor combines the standard DR-2 dual-element reference electrode with a 1 square meter current density monitor, thus providing a compact package which will give accurate polarization data from a single instrument. The instrument may be either hard wired to a surface location or locally into a SunStation™ readout module.

The sintered Ag/AgCl reference electrode provides very
accurate potential data to monitor polarization of the structure. The heavy-duty zinc electrode element provides a long-term, ultra-reliable, low-resolution electrode. The compact current density coupon allows placement in confined spaces. The rugged dual-element (Ag/AgCl sw / Zinc) reference electrode is designed for weld-on, bolt-on or clamp-on attachment to an offshore structure.

Designed for permanent monitoring of cathodic protection systems, the electrode has a 20-year design life. Added to the back of the instrument is a 1 square meter current density monitoring array, such that polarization data may be logged directly from the instrument.

Use of permanent monitoring systems has grown recently, based on increased integrity emphasis and the ease of data telemetry. The DR-2 CD represents the latest innovation in cathodic protection monitoring from the world’s leading supplier of these systems.

Applications

• Offshore platform jackets & drill rigs.
   
• Seawater ballast tanks on SPAR, TLP, and FSU / FPSO structures.
   
• SPAR center well areas.
   
• Inshore structures, piers, jetties, wharves.
   
• Subsea equipment wired to SunStation permanent readout.
   
• As impressed current CP controller.