Polatrak® EFG™
Electric field gradient measurement device for use with the Deep C Meter™
![EFG_KO_Web.jpg](/media/3477/efg_ko_web.jpg?center=0.1015625,0.72666666666666668&width=1296&height=0&mode=crop)
EFG and ROV-II™
Polatrak® EFG probe
The EFG is an electric field gradient (EFG) measurement device that uses two replaceable silver/silver chloride reference electrodes separated by a known distance (13 inches) to provide a contactless method of determining anode activity and of measuring electric fields in seawater. When passing near a structure such as a pipeline, the current density reading can confirm that an anode is properly activated. Intended for use with the Deep C Meter™ 3000AD ROV survey system (shown), it’s the ideal complement to the industry-leading ROV-II™ contact probe.
![DeepCKnockout_EFG_628.jpg](/media/5330/deepcknockout_efg_628.jpg?width=628&height=471&mode=crop)
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Shop online for all Polatrak® instruments for divers, ROVs and topside deployment with details about kit contents, spare parts, service, rental information and more.
![Polatrak_Home_Website.jpg](/media/6210/polatrak_home_website.jpg?width=628&height=471&mode=crop)
Specifications
![efgdraw.jpg](/media/4393/efgdraw.jpg?width=405&height=0&mode=crop)
Key Items
- Electrode Elements
- 2 X Ag/Agcl Sealed
- Depth
- 3,000M
- Reading TypeDeployment
- Proximity
- Deployment
- Rov
- Readout
- Deep C Meter
Technical Datasheet
![EFG TechData LTR.png](/media/4391/efgss.jpg?width=220)