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SunStation Permanent Subsea Readout

Product Overview

The Polatrak® SunStation provides an improved low cost convenient cathodic protection monitoring solution for any subsea application where ROV assisted CP surveys are conducted. No more fooling with ROV mounted probes, or having to get a qualified inspector offshore. The SunStation provides a full time readout powered by the lights on the ROV.

Each SunStation is a single-channel device with an independent ground, thus any Polatrak instrument can output to this device. Anode currents, for example, can now be read directly, in real numbers, as can current densities. This system can save an operator hundreds of thousands of dollars in reduced inspection time, and improves quality and repeatability of data to a level never before available.

The readouts are strategically located at locations where ROV intervention is required; CP inspection is achieved whenever the ROV visits. The mounting panel around the unit indicates inspection point location information and the designation of each channel.

Applications

1. Subsea trees & manifolds
2. Deepwater flow-lines
3. Floating production systems
4. Pipeline sleds
5. Inside soft ballast tanks and center wells
6. Anywhere ROV CP inspection is required

Main Benefits

1. Competitive pricing provides rapid ROI.

2. Eliminates the need for OQ personnel offshore.

3. Provides repeatable accurate data and eliminates operator error.

4. Provides positive real-time verification of electrical continuity or isolation.

5. Eliminates the hassle of ROV interfaced probes.

6. Provides more selective measurement at points not easily accessible with an ROV mounted probe.

7. Reduces cost and eliminates wear and tear on ROV systems.

Specifications

Depth Rating: 1,000 FSW (300 m) w/ Delrin Housing or 10,000 FSW (3000 m) w/ SS Housing

Design Life: 20 years

Readouts: 4 digit 12 mm LED, +/- 2 Volt (1 mV Resolution) , +/- 200 mV (0.1 mV Resolution)

Housing: Delrin or Heavy wall thermoplastic or 316 stainless steel (depending on depth requirements)

Lens: Acrylic

Anti-fouling: CuNi lens fasteners

Interface: V-String Reference Electrodes & Ground, MA-1 Monitored Anode, DR-2 Reference Electrode, DR-2 CD Polarization Monitor

Can take any DC input from passive sensors. Can be mounted to a RetroClamp for retrofit applications (Clamp provides reference ground)


Back to the Polatrak Diagram

TO ORDER and for more info, visit stoprust.com
The integral solar panels (pictured below) eliminate the need for batteries. A light source will power the readouts (bottom).
SunStation solar panel housing shown in simulation on a deepwater production unit
The rear of the SunStation CP test panel. Each connector and wire is ruggedized for deep water.
SunStation solar panel housing and ultra-bright LED readout on a RetroClamp, nicknamed SmartClamp, and used for CP Test Stations on pipelines
deepwater corrosion services inc. - 10851 train court, houston, tx 77041 - (713) 983 7117 - www.stoprust.com