CZ-3D Signal frequent and erratic

[Pekaokole]

I recently bought a CZ-3D and been very happy with it. However today at the beach it started pinging all over the scale anywhere I set it down. It was working fine for two hours then went nuts. I changed batteries same result. Any ideas?

I'm new to this hobby but have used it almost daily for 6 weeks no problems.

 

[Bill_S]

Did you try it away from the beach too see if the symptoms followed? Try turning the sens down? Make sure the coil cable was tight. Try re ground balancing. Maybe you were over a treasure chest full of gold coins.... Just kidding. I am sure people will have some good advice for you. I have never used mine on the beach.

 

[Dan-Pa.]

Especially salt water ones if your going to hunt dry sand ground balance in dry sand and wet sand vice versa. Sounds to me like your unit is not properly ground balanced for the area so learn the bobbing method as its more accurate and yes usually going to have to lower the sns. as well especially in the wet salt sand.
Other than that Bill S covered it quite well..Some beaches are so bad mineralization wise a negative ground balance might be the answer but lets try the above first..

 

[Pekaokole]

Thank you, I thought I tried that. But I'll do it again to be sure. I have worked that area several times before without any problems. It does sound like a loose connection or grounding issue. Many thanks for a quick response.
Peter

 

[cometguy]

My CZ3 has done this several times. I tried replacing the batteries, turning it on and off, etc.
The bad thing was that when it happened to mine it would not ground balance. It was screaming
anytime it got close to ground.
As weird as this sounds I found that if I forced an overload (put it close to a car fender) for a
minute it would clear. Once in a while nothing seems to help and I go to my old Whites back up
till the Fisher is in a better mood
I plan on sending mine in once it freezes in Indiana. Just thought I would share since it may
be part of the same problem you were having.

HH Kilmer

 

[Dan-Pa.]

From my experience hunting NJ saltwater shores seems like the waves don't always bring the same sand mineralization in so to put it bluntly your CZ won't work the same way under these conditions as beaches change.
If it happens on land also would appear either a poor ground balance, poor swing technique or heck might need to visit Fisher for a checkup as detectors being electrical beasts do beak down...

 

[Goldbug Ron]

Had a similar thing happen while hunting gold a couple years ago. I had a brand new 'Coiltek Platypus' coil on a Minelab PI detector. Everything worked great for about 20 minutes then it started screaming every time I put the coil near the ground. Shut the detector off and went home. The next day the same thing happened. This time I had another coil with me. Changed coils and no problem. Turned out to be a defective coil. Sent the coil back and got a replacement. It has worked great for two years.

Goldbug Ron

 

[Pekaokole]

Thanks for all the feedback. Tried it out this am in back yard using 3 different metals. Seems okay for now. Love this site and help from all of you.
Peter