Talking about EMI (electromagnetic interference) signals, they are able to disturb the operation of your ground earth tester and cause it to give you inconsistent readings. This happens mainly at lower frequencies, such as 128 Hz. This is why, when performing soil resistivity testing, make sure you do so with a tester that can automatically select a test frequency for you, usually that’s an EMI-free one. You can also use a clamp-on ground earth tester, as it operates at higher frequencies.
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To rule out guesswork, homeowners are advised to get a detailed drain inspection using a specialised and precise sewer camera to locate piping and plumbing issues.
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While age-old practices like divining have their pseudo-scientific charm in finding water and underground objects, professionals in the construction, water, power and gas industries turn to the range of Radiodetection underground locators to rule out surprises.
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If you’re looking to enhance your routine maintenance, for starters, you can eliminate the guesswork with thermal imaging cameras.
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Unlike night vision cameras, which amplify available light, thermal image cameras don’t require any light source to function. This makes them particularly useful in dark environments where visibility is otherwise impossible.
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