The ROV II is the most dependable and widely-used tip contact probe on the market.
The Polatrak ROV II is the world's best-selling, general-purpose, tip-contact cathodic-protection probe. The first CP probe with twin elements, it allows on-line calibration that eliminates time-consuming on-site procedures and greatly reduces user error.
The ROV II probe interfaces easily with the ROV, but can also be held by divers. It serves as either a tip-contact or proximity-style probe. If ROV operators prefer to avoid connection with the umbilical, the ROV II probe can be connected directly to Deepwater's Deep C Meter readout to make the survey system completely self-contained. The CP potentials are displayed directly on a subsea readout viewable with the ROV's video camera. Like all Polatrak corrosion probes, the ROV II is fully field-serviceable, with plug-in electrode elements and interchangeable components. No battery is required.
The ROV II can be purchased from Deepwater or rented from offshore equipment rental agencies around the world.
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, which allows the probe to be reliably tested and serviced in the field.
Depending on the type of cathodic-protection survey required, the ROV II can be used as a "stabbing" tip-contact probe or as a proximity electrode using a surface ground wire (usually through the diver's umbilical).
The sturdy design of the ROV II probe allows easy replacement of worn or damaged parts without having to replace the entire probe. It can be serviced easily in the field, and Deepwater also offers repair services.
The ROV II probe can be wired through the umbilical of the diver or ROV, but if umbilical interface isn't desired, the Deep-C-Meter readout makes the system self-contained. Readings are displayed for the camera of the ROV to record with dual bright LED readouts.
The zinc calibration coupon is essential for calibrating the probe offshore and for testing the reference electrodes.
The ROV II probe operates with dual Ag / AgCl reference electrodes, which plug directly into the internals of the probe. Additional electrode elements are available individually.
Each standard ROV II comes with one mounted contact tip and two replacements. Additional replacement tips are available individually or in sets of three.
The ROV II nose-cone assembly is comprised of a cone, a contact tip and a connector. Replacement tips and cones are available separately.
The tail assembly is the main connection into the housing. It plugs the umbilical into the reference electrodes and the contact tip housed in the nose cone.
The optional T-Handle mount for ROVs has a shock absorber to protect the probe during surveys. The T-handle can be swapped for a fishtail-style handle.
The ROV II tailpiece comes standard with a 6' whip. A 10' version is also avaliable.
A carrying case is provided with each ROV II probe. The case can be filled with seawater so that the probe can be calibrated.