| Author |
 Replies: 28 / Views: 18,877 |
|
Bedrock of the Community
United States
11951 Posts |
I mentioned this tester on another post, and have questions about it. So I thought it might be good to make a thread about it. We have been using this tester for a few months, and so far it seems to work well. We have several silver rounds and a couple gold coins, that looked good, but did not have that proper finess. Sigma/Metalytics Precious Metal Verifer   Set for finess you want to test  Place coin on unit. If it is the correct finess, that box will appear between brackets  If the coin is not the proper finess, the box may appear outside brackets  |
|
|
|
Moderator
 United States
188213 Posts |
Nice!  |
|
Rest in Peace
United States
7075 Posts |
This is one great piece of test equipment!
Does it work for other items - like things that won't lie flat such as a brooch or cufflinks?
|
|
Bedrock of the Community
 United States
11951 Posts |
There is a wand we use on smaller gold coins.
There is a chance it would work on smaller non coin items,
but it would have to fall into the set finess. EX: 90% .. 999 fine.
It only tells you if the item is is the correct finess.
|
|
Pillar of the Community
1153 Posts |
wow just looked it up and the price is pretty hefty. It definitely looks like a neat tool to have if you are buying high end coins and want to know if something is silver without doing a ring test.
|
|
Pillar of the Community
United States
4963 Posts |
I would love to have one if they weren't so expensive.
|
|
Pillar of the Community
United States
757 Posts |
That is pretty cool. Does the shop also have an XRF to double check? I have scanned a lot of items with my XRF and there are definite variations from one planchet to another within the same date and series. It would be a shame to pass on a good coin because it doesn't meet the tolerance of one machine. For only 700 I may just buy one to play around with.
|
|
Bedrock of the Community
United States
11951 Posts |
Quote:
Does the shop also have an XRF to double check? Not at the shop. But they do have access to better equipment, including XRF. |
|
Pillar of the Community
United States
757 Posts |
Quote:
Not at the shop. But they do have access to better equipment,
including XRF. It would be interesting to see what the actual deviation of the scanner you have is. Did you ever double check the ones that didn't pass? I've scanned some quarter eagles that were almost 93% while others were 88%. I'm sure that is within standards for the coin, but would your tester show it as bad? |
|
Pillar of the Community
 United States
4591 Posts |
Interesting... from their site, the basic unit runs $625 up to $889 and yes, it can read through slabs (the demo video shows an ASE in an NGC slab). And it wouldn't take more than 1 fake AGE to pay for itself... -----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ |
|
Bedrock of the Community
United States
12819 Posts |
Pretty darn cool. I would think this would be a must for any coin shop owner.
|
|
Moderator
Canada
10458 Posts |
I have a very powerful XRF in my lab at work, so I would never need something like this. I did not research this instrument, but how does it work? Is it like a fancy resistivity meter?
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
|
|
Rest in Peace
United States
2668 Posts |
Yes, do tell. I'm lazy.  |
|
Pillar of the Community
United States
1005 Posts |
If you move the coin around, how does this affect the reading? I would think surface residues would present their own XRF spectra that might lessen the apparent eg silver content.
Also, I am curious about the planchet-to-planchet variation mentioned by davec13, this is a very surprisingly large variation it seems to me. Although I don't know the standards for gold purity back in the day something would tell me they could have done a better job than 5% variation, but maybe not...
|
|
Valued Member
United States
56 Posts |
The coin shop I visit back home in Charleston has one of these and it's pretty sweet. I'd love to have one to play with but I really can't justify the cost.
|
|
Bedrock of the Community
United States
11951 Posts |
Wow, a few question ..
How does it work?
I am not sure ... Sorry ... I just set it up and use it. I did read the user
guide, it did not state how it works.
It does say if the coin/sample is hot or cold the reading might not be accurate.
Or if a silver bar has contaminants it might not give a correct reading.
Also if coin is to thin, may not read accurately.
The guide does not state what the variation is.
Sorry I do not have much tech info ...
I was asked in another thread what we use, ...
|
| |
Replies: 28 / Views: 18,877 |
Posted 01/07/2016 11:07 am
