Way Ahead In Corrosion Control

Deep C Meter

Polatrak® cathodic protection survey system for ROVs

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The Deep C Meter™ is the premier ROV cathodic-protection survey system for use in deep water.

The Polatrak® Deep C Meter™ is designed for rugged service on a work-class ROV. The unit can integrate fully with ROV systems for power and data transfer, or it can operate as a visual inspection unit, with no interface with the ROV umbilical. The unit is rated to 3000 m depths, and each unit is built and tested in Deepwater's Houston manufacturing facility.

Pipeline survey modes

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Stab Survey

The stab survey method records the actual steel potential with periodic stabs every 1 - 3 km. The potential between stabs can be accurately calculated with pipeline attenuation modeling. Deep C Meter ™ software in Stab Survey mode records events and exports a completed survey for the engineers to model.

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Remote Electrode Survey

The remote electrode method calibrates a remote reading with periodic stabs of bare steel along the pipeline. The data is then aligned in post processing. Not as accurate as a stab survey, but required in some regions. Deep C Meter™ software in Remote mode outputs stab events and the complete set of readings from the proximity electrode for processing.

Models

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Deep C Meter™ 3000 AD

ROV interface RS232/485 / ROV powered / Software & visual display / 3000 m

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Deep C Meter™ 3000 EFG

ROV interface RS232/485 / ROV powered / Software and visual display / 3000 m / Field gradient probe

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Deep C Meter™ 3000

No ROV interface / Battery powered / Visual display / 3000 m

Specifications

KEY ITEMS

ELECTRODE ELEMENTS

2 x Ag/AgCl sealed

DEPTH

3,000m

READING TYPE

Proximity, contact and field gradient

DEPLOYMENT

ROV

READOUT

Deep C Meter™, RS 232 485 via Survey software

TECH DATASHEET

Deep C Meter gallery

Survey software

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