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Starter: If you PM me a email address I will send you a manual for your VALLON. The C button has several uses. As you stated, in mineral it is used for ground compensation. In Normal it is used for fast compensation, in Volume mode it is used for manual channel adjustment. As for the beaches in the UK I think Eric is the best bet for that answer. Here on the east coast of the US, in saltwater, I never use the mineral mode. Sensitivity is default or slightly higher. I only experience a false signal on occasion when changing from damp sand to water. The real test with the VALLON is learning what to dig and what to pass up. Good luck to everybody.
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Thank You very much Carolina - I have sent you a PM
I presume 'fast compensation' means ground balance. Do you have to use this every few minutes, or is it just when starting to search?Comment
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Starter: If The machine becomes chatty or erratic or sometimes a large metal object such as a fence will cause issues I use the fast compensation. When first submerging the search head in salt water I let the search head acclimate to the water temp and then with the search head just above the ground I fast compensate to balance the coil. When out of the water around black sand and wet salt sand and the wash I use fast compensation.Comment
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Thank You again Carolina - that's a great help
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Hi Guys,
I only live a couple of streets from the beach. The coast line is littered with basalt rock which is positive in normal. So using mineral and ground balancing the basalt out is not a problem. By searching in normal you do get tweeks now and then when swinging but by switching to mineral mode you can tell it is a target. very impressed with the Vallon.
Regards Ray Below2doe.Comment
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================================================== ========Originally posted by tifred View PostHello everyone
here is my modified vhm3cs.
housing coil of minelab explorer modified.
one baterie 26650
I have stick minelab xs label on my vmh3cs to annoy my friends!
thank you for the many council Eric
[ATTACH]41260[/ATTACH]
[ATTACH]41261[/ATTACH]
[ATTACH]41262[/ATTACH]
Could you please tell us what you used for a battery holder? I am thinking of using two 26650's 8800 mAh in Parallel. Any comments Eric or Tifred ?Comment
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Originally posted by Sampler_one View Post
And the coil connector please ? is it the original socket ?Comment
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VMC-1.
Has anyone info about the VMC-1 - especially if the electronics are expected to be by and large the same as the VMH-CS3.
I found this general link about mine-detectors
https://www.gichd.org/resources/equi...9#.WlNHzrjwmURComment
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The C button quickly tunes out any latent signal when pressed, but you don't need to press it after switch on in 'normal' mode as the detector zeros quick enough by default. In 'mineral mode' you do need to press it to get a quick tune down to threshold level. This is because a slower filter is used in this mode for some reason which is not immediately obvious.Originally posted by Carolina View Post
On most UK beaches there is little or no iron mineralisation of the sand that will affect a PI detector. Only is areas where there are volcanic basalts and the sand is derived by the erosion of such rocks, are you likely to get iron minerals in the sand. Maybe Scotland, North Wales, and possibly Cornwall. Tenerife is one place where you will need to use 'mineralised' mode on many beaches. On the Dorset coast I just switch on and go in 'normal' mode but sometimes reducing the detection range by pressing the - button to get the near surface objects first. Searching on wet sand, or even in a foot or two of water does not often require pressing the C button in my experience. Deeper water probably would.
One thing that puzzles me is that Vallon recommend letting the search head adjust to the water temperature before using. This is something that is not normally required for a pulse induction detector in which the mono coil is untuned and there is no coil balancing as in a two coil induction balance arrangement, where TX and RX are separate.
Eric.Comment
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Hi Carolina, The above post was really ment as a reply for 'Starter'. Apologies there, but your point about the acclimatisation of the coil is interesting and maybe Clay could give you an answer.
Eric.Comment
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Thank You very much Eric for your kind and considered reply - very much appreciated!Comment
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Hi Eric, long time no talk. Figured your family and holiday's had you wrapped up. I'm not sure what part the acclimation plays but for me it smooths the machine out. Although Clay can tear one apart and rebuild in no time at all, he relies on VALLONS tech. support on such issues. I will pose the question to him and see his reply. Being the owner of such a large distributorship, he is VALLON and VALLON is him. All the mail I send him automatically goes to Germany and any mail I send to Germany automatically goes to him. They are an open book.
CarolinaComment
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hello
for my modification ,
I opened an old coil of minelab explorer that was not working anymore.
I put inside a mono winding, I used the parameters of Eric Foster, shielding and SCOTH24. I used the original cable of the vallON for the coil.
The connector used is:1Pcs SP16 Series 2Pin IP68 Waterproof Circular Cable Plug & Socket Connector BS2 buy on ebay china.
for the battery it's a one 26650 ,I shortened the tube of the battery, I will make photos of the modification.I am very satisfied with the result and a big thank you to our Friend Eric foster !Comment
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Thanks for the information on the coil socket modification.Comment
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Thanks so much for the info. Really Nice Job ! I am expecting to receive one VMH3CS and Two broken VMC1's in a couple of weeks. I hope to be to contribute to this thread. Im sure I will have many questions for the Forum. haha.
Regards,
GarryComment
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