CS130 : Ringing is reversed

Modules General
1

I have just bought this Velleman CS130 metal detector. It’s always ringing except when a piece of metal is detected ! Exactly the opposite of what i expected ! It should ring only when a piece of metal is detected !

It’s for a birthday. I have no time to send it back before it. Can i unweld something en weld it in the right place and position to get a correct functionality ?

Thanks for help.

BR,

2

This forum is for Velleman Projects products only (products developed by Velleman), so we will have to remove your post. You can use the following form if you have a question about the CS130:
velleman.eu/support/contact/?product=382692

However, from what I can tell from the manual and personal use of the device, what you hear is perfectly normal.

  • The detector produces a signal as soon as it is switched on.
  • The signal varies according to the detected object.
  • For ferrous metals, the tone will be low and the meter moves to the left.
  • Non-ferrous metals will produce a higher tone and the meter moves to the right.

Perhaps other metal detectors work differently, or perhaps this is a misconception, I don’t know. Internet sources also speak of a constant tone.

A lot of detectors in the market produce a constant background tone called “threshold” for deeper detection. The user must follow the pitch changes in this tone to identify a target.