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Polatrak CP Gun™
Bathycorrometer Style Corrosion
Testing Probe for Divers

 By Deepwater Corrosion Services


The most user-friendly, diver-held cathodic protection probe on the market.

Product Overview

The Polatrak CP Gun outperforms all other bathycorrometer type devices available in accuracy and convenience. Longer battery life, interchangeable freshwater / seawater electrodes, and ultra-bright LED displays (for limited visibility) make the CP Gun the most user-friendly diver-held CP probe. The dual electrode elements and readouts make it the most accurate, as the probe is self calibrating. Each probe kit comes with a full complement of spare parts, and replacements are easily available.

A single set of disposable alkaline batteries provides up to 150 hours of continuous survey operation. A convenient on-off switch allows display only when actually probing for even longer life. The CP Gun is rated to depths of up to 300 m (~1000 ft). The CP Gun is designed for situations where a few contact CP readings are required. The unit, like all Polatrak probes, has twin elements and dual readouts. This provides an unparalleled level of accuracy and redundancy.

The CP Gun kit comes complete with operating and calibration instructions and a comprehensive supply of spare parts

Applications

  • Ship hull surveys 
  • Platform surveys 
  • Dock and jetty surveys

Main Benefits

  • Guaranteed accuracy, common error sources are eliminated with the twin element configuration 
  • Self-contained and self-calibrating. No tie-ins to the dive umbilical are required. 
  • No battery chargers required, a full season from standard alkaline batteries. 
  • All parts are replaceable.
 
The CP Gun is ergonomically designed for divers, with a pistol-grip and a convenient, thumb-operated switch (red).
The ultra-bright LED display distinguishes
the CP Gun from other bathycorrometer-type probes.
CP Gun Kit delivered in a protective case.

 

Key Design Points
  1. Guaranteed accuracy:  Many common sources for error are eliminated with the twin element configuration. The dual silver / silver chloride (Ag/AgCl) electrodes provide internal redundancy and on-line calibration, allowing the probe to be reliably tested and readings verified in the field.
     
  2. Season long battery life:  The 2 standard 9V batteries, combined with the convenient switch allows the probe to be used continuously for the entire dive season, unlike most other corrosion probes in it's class.
     
  3. Rugged construction:  The strong individual elements of the CP Gun probe allows easy replacement of worn or damaged parts without having to replace the entire probe. Deepwater offers repair services, or the probe can be rented and repaired by any of the leading industry equipment rental houses.
     
  4. Ag/AgCl or Cu/CuSO4 Electrodes:  Interchangeable Cu/CuSO4 reference elements for the CP Gun probe now allow diver or ROV surveys to be performed in brackish or fresh water rivers and lakes, where silver chloride electrodes are not compatible.
     
  5. Ultra bright LED readouts:  The CP Gun is the only diver held probe with bright, back-lit LED readouts, allowing the diver to interrogate the CP readings in conditions with low visibility, such as river crossings and certain brackish water areas.

CP Gun Kit Components
 
The zinc calibration coupon is essential for calibrating the probe offshore, and consequently, testing the reference electrodes.
The probe operates with dual Ag / AgCl reference electrodes. The CP Gun Kit comes with one (1) extra replacement. Additional electrodes are available individually.
The standard CP Gun kit comes with all components and spare parts housed in a custom-built, durable, water-tight offshore pelican case, with an extendable handle and wheels.
Lens removal requires a new set of O-rings to be fitted to the grooves when reassembling the CP Gun probe. The standard kit includes several replacement O-rings.
Each standard CP Gun kit comes with four (4) contact tips - one (1) mounted and three (3) replacements. Additional replacement tips are available individually.
The CP Gun's nose cone assembly comprises the nose cone, a contact tip, and the connector. Replacement tip(s) and cone(s) are available separately.
The standard CP Gun Kit also comes with four (4) replacement lens screws. These are vital for re-attaching the lens to the main body of the probe during maintenance.
The standard CP Gun Kit also comes with two tubes of O-ring lube, for lens reattachment during probe maintenance. Replacement tubes are available individually.

 

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