CS 990XD

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RamblinRelic
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CS 990XD

Post by RamblinRelic » Sat Dec 29, 2018 5:54 pm

Hi folks,
Been a while since I've posted here. I was just looking through recent posts with CScope users comparing their machines to other brands. My 990XD is the only detector I have (have ever had) and I don't plan on getting another any time soon. I've found a few bits and bobs with it. Nothing exciting, but that's more down to trashy, poor quality areas, rather than anything else to be honest.

What are people's experiences of the 990XD? Do users of this machine turn up good finds?

I also wonder how deep it detects? Does any one know what it's range is, roughly? This isn't something CScopes literature details anywhere :-/

Your thoughts are appreciated, so thanks in advance ::g



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Re: CS 990XD

Post by garrettoldboy » Sun Dec 30, 2018 8:28 am

hello, nothing wrong with that detector bearing in mind it is a non motion as compared to most being a motion where you need to swing the coil to pick up a signal, a non motion is like using a pin point, it runs on 17Khz so will not go as deep as low Khz ones but good for small items, it has the beach mode to, what coil does it have ? solid round or like a polo mint, there is a member on here who works for Cscope i am sure he will help, name of Andy, i will check out mdf name, cheers

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Re: CS 990XD

Post by garrettoldboy » Sun Dec 30, 2018 8:30 am

garrettoldboy wrote:
Sun Dec 30, 2018 8:28 am
hello, nothing wrong with that detector bearing in mind it is a non motion as compared to most being a motion where you need to swing the coil to pick up a signal, a non motion is like using a pin point, it runs on 17Khz so will not go as deep as low Khz ones but good for small items, it has the beach mode to, what coil does it have ? solid round or like a polo mint, there is a member on here who works for Cscope i am sure he will help, name of Andy Fraggle, try contact him on the Cscope postings

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Re: CS 990XD

Post by Count de Washers » Sun Dec 30, 2018 10:49 am

I always have a CS990XD to turn to when needed. It is very enjoyable to use and I like the tones (which are very reliable). Excellent on dry/damp sand, just won't do standing salt water.
Depth wise I reckon up to 6 inches but happier at 5inches on coin sized objects.

Found a recently lost gold ring for the owner in a Victorian vegetable garden that had been used to dump fireplace ash in for over a hundred years. ::g

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Re: CS 990XD

Post by RamblinRelic » Sun Dec 30, 2018 1:38 pm

Thanks for the replies. I did a test this morning (with good batteries) with extremely disappointing results.

It found a small brass olive at 3" no problem. A bronze yale key at a depth of 6" gave absolutely no audio and barely tickled the needle. A modern penny at 10" gave a grunt, but pinpointing was fairly out. A silver charm at 6" was undetectable. A large silver ring at 10" barely gave a flicker on the needle with no audio. This was tried in both 'inland' with discrim turned down, and beach at various 'level' settings. I know 10" is a big ask, but I would expect something from a highly conductive metal at 6" of freshly dug earth :-L

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Re: CS 990XD

Post by RamblinRelic » Mon Dec 31, 2018 3:59 pm

Well, I went out again and re-tested for depth. I suppose this information is really for anyone looking at this particular machine since there is little out there relating to how it performs in reality. I decided to give it the best chance I could with a silver ring.

So, a fair sized sterling silver ring used in damp, chalky soil; machine tuned with threshold just audible through headphones, set to 'inland', meter and audio with discrimination turned off to give maximum depth the results were:

3" deep hole: audio and meter just to left of centre (reject). Signal lost around an inch above ground level.

4" deep hole: audio with meter reading into reject. Signal lost as soon as coil lifted off ground.

5" deep hole: No audio, barely perceptible movement on needle. If I didn't know the ring was there I'd have carried on as if there was nothing.

I'd already tried at 6" so didn't repeat.

The test isn't entirely fair since the ring was buried and detected within minutes and the ground was freshly dug, but still...

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Re: CS 990XD

Post by andy fraggle » Thu Jan 03, 2019 12:17 pm

Hi there,

What setting have you got the detector set to?

Andy Fraggle

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Re: CS 990XD

Post by RamblinRelic » Fri Jan 04, 2019 4:42 pm

andy fraggle wrote:
Thu Jan 03, 2019 12:17 pm
Hi there,
What setting have you got the detector set to?
Hi Andy,
Here are the settings I used:
RamblinRelic wrote:
Mon Dec 31, 2018 3:59 pm
.. chalky soil; machine tuned with threshold just audible through headphones, set to 'inland', meter and audio with discrimination turned off to give maximum depth ...

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Re: CS 990XD

Post by garrettoldboy » Fri Jan 04, 2019 5:59 pm

hello, did Andy help you with your 990 ?

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Re: CS 990XD

Post by mrix » Fri Jan 04, 2019 10:50 pm

Off topic replies removed please remember to stay on topic ::g
Thanks
mrix

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Re: CS 990XD

Post by RamblinRelic » Sat Jan 05, 2019 12:17 pm

garrettoldboy wrote:
Fri Jan 04, 2019 5:59 pm
hello, did Andy help you with your 990 ?
Hi, sorry but my original reply to you has been removed, so reposting. I don't think Andy's been on and seen my answer I left him above ^. So nothing yet ;)

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Re: CS 990XD

Post by garrettoldboy » Sat Jan 05, 2019 2:18 pm

RamblinRelic wrote:
Sat Jan 05, 2019 12:17 pm
garrettoldboy wrote:
Fri Jan 04, 2019 5:59 pm
hello, did Andy help you with your 990 ?
Hi, sorry but my original reply to you has been removed, so reposting. I don't think Andy's been on and seen my answer I left him above ^. So nothing yet ;)
hello, no problem i am sure Andy will get back to you or you could phone Cscope and speak to him re your 990,

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Re: CS 990XD

Post by andy fraggle » Wed Jan 09, 2019 12:28 pm

Sorry for the delay in getting back to you.

The settings I would use are:

1. INLAND
2. NONE
3. LEVEL - MAXIMUM
4. TUNE - AUDIO THRESHOLD

Hope this helps.

Andy

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