Hello....I'm new to this great hobby of metal detecting & just purchased an X-Terra 705. I also went ahead & bought the 3kHz 9" concentric coil mainly for locating copper artifacts. Researching all the coils I've noticed that 3 of the x-terra coils are water resistant instead of being waterproof.Why? Why not make all of them waterproof? Sorry but I'm a true rookie at this so I have some rookie questions......Thanks.... Al
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Waterproof/water resistant coils???
- Thread starter fdl
- Start date
There's a lot that goes into these coils, and one factor that few stop to think about is the external pressure on the coil when it is submerged and the effects of that. However, technology is improving the equipment that we work with, and in the future there will be fewer water resistant only coils. It wasn't but a few years ago that the number of waterproof machines was small, but now CTX and AT Pro are showing us the way of the future, and it appears that "crossover" detectors that work equally well on land or in water will be a new trend.
FWIW, the Xterra's aren't the only detector that has a mix of waterproof and water resistant coils. If you look, you'll see quite a few machines are in the same boat (so to speak) across all makes.
Oh! And of the 12 coils now available for the Xterra that are authorized by Minelab, only 4 are not waterproof.
FWIW, the Xterra's aren't the only detector that has a mix of waterproof and water resistant coils. If you look, you'll see quite a few machines are in the same boat (so to speak) across all makes.
Oh! And of the 12 coils now available for the Xterra that are authorized by Minelab, only 4 are not waterproof.
hotrod53
Member
+1, I guess I don't really understand the reason either. Tesoro coils are all waterproof no mater which one you have. The electronics aren't, but it was nice not worrying about submerging the coil in puddle or even hunting the surf at the beach. I could see pressure being an issue if diving, but if your box isn't waterproof, you can only be 3' deep max. Wouldn't it just be a matter of sealing it up?
Your Tesoro coil was just wire windings in an epoxy filled housing, and unlike the Xterra it had no electronics actually in the coil.hotrod53 said:
I think it is one of those things........know what the warranty says before you take the risk. I've dunked all my coils more than once. I also know that, before I ever take a coil to the field, I put a dab of silicon around where the coil cover meets the coil and where the cable goes into the coil. I ain't recommending anyone do this. I'm just saying that I believe the difference between waterproof and water-resistant has more to do with water pressure (as Old Longhair has pointed out) than it does with moisture simply entering the inner workings of the coils. And I suppose until I ruin one of mine, I'll not worry about an occasional dunk or short swim. After all, (as hotrod53 mentioned) with the shaft length as it is, I doubt I ever get the coil deep enough that I have to worry about having enough water pressure to infiltrate the coil. But again, I know what the specs say and will have no one to blame but myself, if that should ruin a coil. JMHO HH Randy
