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Get the right probe for a pipeline inspection / Elcometer 266, 280, 236

Which probe to choose?

1. The band brush probe

Comes standard with the Elcometer 236 / Elcometer 266 gauges, ideal for most applications, and works especially well in small areas or on complex surfaces.


2. Using Elcometer wire brush probes and conductive rubber probes

Designed for larger surface areas, they are available in a range of different widths. The conductive rubber probe is also ideal for when testing on coatings that are more susceptible to scratches, and you want to avoid damaging the coating. There’s also a range of probes designed for internal and external pipe inspection, all available in a range of diameters to suit different sizes of pipe.


3. Circular wire brush probes for internal tests

Perfect for internal pipe inspection, they should be large enough to tightly fit inside the pipe and leaving no gaps. Attaching extension poles to the probe allows you to test deeper.



4. The ‘C-Type’ wire brush for external inspection

Lightweight, easy to use, they are ideal for testing the outer surface of pipes, especially if there are obstructions on them (valves or inspection hatches).

5. The rolling spring probe for long pipes

Tightly wrapped around the pipe, it rolls along as you move, quckly testing long sections of pipe. It is available in either phosphor bronze or stainless steel; each has a distinct advantage.

The stainless steel probe is extremely robust, with flat, rectangular coils, meaning a large area of the probe is always in contact with the surface.

The phosphor bronze probe is lightweight, flexible and easy to manoeuvre on rough surfaces. With less capacitance, it consistently delivers the voltage to the probe. This applies to Elcometer 280, when working with high voltages (around 30kV), or when testing large diameter pipes. Whichever rolling spring you choose, there should be no gaps between the probe and the surface.


6. Trailing earth voltage return cable and grounding mat

For a fast and thorough pipeline inspection, use Elcometer 280 with a trailing earth voltage return cable come in handy, saving you time because you don’t need to clip/ unclip to the substrate you are testing. In case of un-grounded pipe, Elcometer 280 grounding mats and grounding pin are used. You can see how this works in the Elcometer 280 video. Probe extension pieces can be attached to Elcometer high voltage holiday detectors for testing floors or large structures, or to test deeper inside pipelines. The Elcometer 236 has its own telescopic probe handles, which can extend up to 3.6m (142”) in length, for easy access to difficult areas.


A second hand grip for Elcometer 266, designed for two handed use, is ideal for testing pipes and tank floors.

Source video: https://www.youtube.com/watch?v=jWNaKgnkGLA&t=18s