Announcement

**nelson** · 07-28-2009, 12:29 PM

IT LIKE A GOOD MACHINES THERE.
I HOPE YOU CAN MAKE REVERSE ENGINIERING, SPECIALLY ON CS880
TELL US RESULTS AFTER FIELD TEST.
REGARDS
NELSON

Originally posted by ivconic View Post

Just got 2 new Cscope's; 440XD and CS880.
Also had 770XD recently.
770XD and 440XD are very simillar. Not bad machines at all. Just need some time to become used on such fine nonmotion behavior. In the past i saw comments here saying that 770XD is not very good detector. False! I alredy have very nice experiences with it on the field. Just need practice and patience when working with it. Depths are good. So...now ...440XD seems the same story.
But CS880 ! I am delited! Very nice PI detector. Those 2 arrived just few minutes ago so i couldnt perform detailed tests. But what i saw in last 5 minutes here in my workshop is very promissing. Am i mistaking or 880 is PI with pretty accurate discrimination! It can not see steel knife but it is detecting silver ring pretty good and "deep" in air!! Wow! Almost 26cm in air on small silver ring! Over 30cm in air on gold pocket watch!
I will need to take it outdoor and perform more detailed tests.
CS880 is (so far) very fine small PI detector with excellent performances!

**ivconic** · 07-28-2009, 01:45 PM

Funny thing is when man visit official Cscope page, can not find nothing more detailed about CS880. It is located in "Utility Tracing Locators" group of their products. Than there divided in few subgroups and CS880 is presented as "Metal Cover Locating" metal detector! Ha,ha,ha! So....i can only imagine your faces, looking at their presentations and reading my previous post. You must be thinking "ivconic is going either crazy, either he is master liar - claiming CS880 is discriminative and good for small coloured items!?!?"
Ha,ha,ha! If i was not received CS880 and checked it few minutes before...i would think the same! But no! I am not crazy and of course i am not liar. Maybe Cscope advertised it as "Utillity.....Metal Cover Locator..blah..blah", maybe.....but trust me CS880 is a hell of convinient PI detector! Wow!
No commands at all. Just ON and OFF. Switching ON it calibrates automatically on present conditions and than you can go searching. So i experimented a bit and founded out; that position of coil, while autocalibration procedure is going on, DOES MAKE A LOT OF DIFFERENCES!
In short and pretty spartanic manual it is suggested to rise coil high while switching ON. I rised coil just 40cm of the soil (in my backyards) and switched it ON. Very fast autocalibration occured and second after CS880 was ready to "dance". And yes...it can discriminate! Very accuratelly!
Very very sweet! I am not sure but autocalibration looks like some sort of GEB. It can be achieved easilly (with specific coil position during autocalibration) to work with excellent discrimination! Small iron junk is totally rejected while at the same time very small coloured items are detected very well, excellent!
Ha,ha,ha! What a machine! I dont beleive it!
This MUST be traced! Simply MUST!

**Qiaozhi** · 07-28-2009, 02:05 PM

Originally posted by ivconic View Post

Funny thing is when man visit official Cscope page, can not find nothing more detailed about CS880. It is located in "Utility Tracing Locators" group of their products. Than there divided in few subgroups and CS880 is presented as "Metal Cover Locating" metal detector! Ha,ha,ha! So....i can only imagine your faces, looking at their presentations and reading my previous post. You must be thinking "ivconic is going either crazy, either he is master liar - claiming CS880 is discriminative and good for small coloured items!?!?"
Ha,ha,ha! If i was not received CS880 and checked it few minutes before...i would think the same! But no! I am not crazy and of course i am not liar. Maybe Cscope advertised it as "Utillity.....Metal Cover Locator..blah..blah", maybe.....but trust me CS880 is a hell of convinient PI detector! Wow!
No commands at all. Just ON and OFF. Switching ON it calibrates automatically on present conditions and than you can go searching. So i experimented a bit and founded out; that position of coil, while autocalibration procedure is going on, DOES MAKE A LOT OF DIFFERENCES!
In short and pretty spartanic manual it is suggested to rise coil high while switching ON. I rised coil just 40cm of the soil (in my backyards) and switched it ON. Very fast autocalibration occured and second after CS880 was ready to "dance". And yes...it can discriminate! Very accuratelly!
Very very sweet! I am not sure but autocalibration looks like some sort of GEB. It can be achieved easilly (with specific coil position during autocalibration) to work with excellent discrimination! Small iron junk is totally rejected while at the same time very small coloured items are detected very well, excellent!
Ha,ha,ha! What a machine! I dont beleive it!
This MUST be traced! Simply MUST!

Hi Ivconic,

Is it analog or PIC-based?

**WM6** · 07-28-2009, 02:15 PM

Originally posted by ivconic View Post

CS880 is (so far) very fine small PI detector with excellent performances!

I cannot see any knobs on those CS880. Is this fully factory pretuned thing? In a while you answered to my question, thanks.

**ivconic** · 07-28-2009, 02:16 PM

P L E A S E do not laugh on me!

I was sure it is PI detector with 100% uPC inside! H E C K !!!

Look what i found inside!!!!

How is possiblle? How?
It is working excellent. It has discrimination. It has soft touch commands....2 knobs; On and Off. Also has 2 led diodes; signal strenght and battery state!?? How is possiblle to do all the jobs with such small and simple pcb!??? Cscope! Simply as that!
Yet...look what is inside!!!!

Attached Files

**ivconic** · 07-28-2009, 02:22 PM

I will go now back to workshop (on the floor) to examine coil(s).
Must be something hidden inside!?

**WM6** · 07-28-2009, 02:31 PM

Originally posted by ivconic View Post

I was sure it is PI detector with 100% uPC inside! H E C K !!!

PCB is not seen as a PI kind of PCB. Maybe sort of BFO?

**WM6** · 07-28-2009, 02:48 PM

Funny detail. Why red LED3 light inwards to housing? Just because in need of factory tuning? Obviously, the VLF IB detector (see PL1!).

**kt315** · 07-28-2009, 02:57 PM

if it is PI you are nearest to PI discrimination enigma of Eric Foster detectors.

out of the matter now, my condolences to Eric and his family.
to read http://www.findmall.com/list.php?34

**Qiaozhi** · 07-28-2009, 03:01 PM

I found this info on another site:

The CScope Metal Cover Locator has been designed specifically for the exacting requirements of the water industry and ground working contractor
This detector is a low cost solution to the problem of finding lost or hidden metal objects in the ground. Typical targets will be manhole covers and stopcock boxes covered by tarmac or earth, steel reinforcement rods in concrete road surfaces, metal pipes, valve heads and buried fuel tanks
The CScope designed Induction Balance operating system provides maximum sensitivity to solid metal objects whilst ignoring the small metal clutter which causes false signals in cheap inferior metal detectors. A 'target hold' facility enables the operator to trace out the shape and size of the located object - less time wasted uncovering the wrong target!

So it's not a PI.

**ivconic** · 07-28-2009, 03:21 PM

No....ohh mamma! It is not a PI. I also realized that!!!

I was fooled with audio and overall behavior! PI....my heck!
KT315...yes....but i am not that lucky! Still far away from E.F. ! Much far away!
Just analyzed coil for CS880. Gues whattt!??!

Tx=8 ohms, 1.9mH
Rx=11.3 ohms, 1.9mH

Ahahahahah! Familliar? Frequency? 17kHz!!!

**ivconic** · 07-28-2009, 03:28 PM

So it is either IB or BFO.
But still we MUST ADMIT something; despite such simple and funny machine inside enclosure - CS880 is working exactly as i explained in first post; excellent!!! Discrimination is EXCELLENT. Sensitivity to small silver ring and smaller pocket gold watch is excellent. Also just tested it again outdoor. Burried small silver ring (ca 2cm diamm) at 15cm in soil. Detection loud and clear! Not continous sound but frequent "tic,tic,tic..." just exactly as i saw on my Delta Pulse handmade (now you know why i was fooled thinking it is a PI)...

Also we must admit another thing - so few components on pcb but so much tasks it can hold! Wow again!

So...conclusion; Cscope mastered coil crafting techniques to perfection! I know that for long time. Cose, it is obvious that Cscope coils do most of the jobs for real!

**ivconic** · 07-28-2009, 03:31 PM

WM6, yes...i am confused with that red led also. It flashes all the time while 880 is powered ON??? What purpose? I dont have a clue!? Might be some stabilisation....? It is inside and cant be seen from outside..? So..? First thing came to my mind was known use of led in bandpass/amp filter at Ibanez Tube Screamer serie (or it was Marshall Shred Master..? Never mind....you'll get the point anyway). Two ordinary diodes were replaced with led in some models....could be the same thing?

**ivconic** · 07-28-2009, 03:35 PM

So.... now 440XD is on the menu!
Coil....same as on CS880.
Tx=8 ohms, 1.9mH
Rx=11.3 ohms, 1.9mH

Frequency = 17kHz

So...770XD, 440XD and CS880 have exactly the same coils and working frequencies.

440XD have simplified machine inside, than 770XD. It is so obvious. I think all the differences are just in audio part (and a channel more). 440 have simple audio and 770 is having tone discriminating audio (simillar to old 1220B).

Attached Files

Announcement

Cscope 440XD and CS880

Cscope 440XD and CS880

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