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 Replies: 27 / Views: 5,103 |
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Bedrock of the Community
United States
17884 Posts |
Quote:
It's a bit pricier, but I have tested it against known weights and it's within +/- .015 gr tolerances. I think you mean .015 gm .015 gr would be +/- .001 gm |
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Valued Member
United States
326 Posts |
Quote:Harbor Freight! Is this it? http://www.harborfreight.com/1000-g...001b2166c62d1000 grams capacity, equivalent to 35.27 ounces I just bought this at HF. With the 20% off coupon the total with tax was $10.43 - It seems decent and should work nicely. Edited by Larryh86GT
12/02/2011 11:48 am
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Pillar of the Community
Canada
902 Posts |
After reading your comments I bought 2 scales. 0.1 - 1000g & a 0.01 - 200g, ought to do the trick.
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New Member
United States
47 Posts |
just make sure no matter which one you get.... It better say a nickel weighs 5 grams or it no good scales are important I was able to tell the Presidential dollar error coins were real by there weight if the edges had been ground off the coin is lighter . |
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Bedrock of the Community
United States
10635 Posts |
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Valued Member
United States
326 Posts |
Thanks johnnybro123. I was wondering how to check it for accuracy.
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Bedrock of the Community
United States
17884 Posts |
Quote:
just make sure no matter which one you get....
It better say a nickel weighs 5 grams or it no good Trying to use a coin to calibrate a scale is an exercise in futility. Yes supposedly the nickel weighs exactly 5 grams, but there are operational tolerances. That nickel could weigh any where from 4.81 grams to 5.19 grams. If you scales gives a reading of 5 grams for any weight in that range then it is only accurate to one gram. No where near accurate enough for any kind of use. Quote:I was able to tell the Presidential dollar error coins were real by there weight if the edges had been ground off the coin is lighter Once again the tolerance range makes it impossible to authenticate a no edge letter dollar by weight. Tolerances allow the dollar coin to weigh anywhere between 7.8 and 8.4 grams If you have a coin that weighs 8.2 grams and grind off the edge lettering it will still most likely weigh MORE then 8.1 grams. |
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Pillar of the Community
Canada
902 Posts |
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Valued Member
United States
81 Posts |
Went to Harbor Freight and got one of the scale. While I was there, got myself a twin pack of magnets.
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Rest in Peace
United States
9104 Posts |
 , redbus! |
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Pillar of the Community
 United States
784 Posts |
so I decided to just get one off ebay. I weighed a couple of copper pennies and bunch zinc pennies. copper came back at 3.11 or 3.12. zinc varied from 2.47 to 2.62. i didnt know if that was normal. seemed the corroded coins weight less then 2.50 which make since. |
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Bedrock of the Community
United States
17884 Posts |
Cent tolerance is +/- .1 grams so the 2.62 zinc is slightly out of tolerance but everything else is within tolerance.
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New Member
United States
8 Posts |
A lot of the drug dealers are using Pelouze scales. I would think they would be accurate if they are using them in "business" transactions. You can find them at Staples or Office Depot as "Postage Scales". I used the office one to easily determine that the Chinese Panda I bought off ebay was counterfit. |
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Valued Member
United States
320 Posts |
I bought a Grobet scale. Highly recommended. Not sure of the model # but it is a pocket version and it takes 2 AAA batteries. It goes to 100 grams and is rated to be accurate to .01 grams. Grobet supposedly is a good name in the science industry and while it was expensive at $35, I decided to do it once and do it right. I liked that it could measure in grains, carats, ounces and grams while still fitting in my pocket. Anyway, lately my father is getting into ammunition reloading, and he recently purchased a powder scale. It is like $175 and it came with a 50g weight for calibration purposes. We put that weight on both scales and they both said it was 50.08 grams-- they matched to the 1/100th of a gram. We also weighed a couple of other items and only once were they different, and then by .01g--- and mine kind of wavered a little before settling. Longwinded story short, if you have two scales, take a weight and put that weight on both of them. If they match exactly you can be relatively sure they are both good scales as the chance of them both being off exactly the same are pretty slim. If they do not match then you know at least one is inaccurate. Another piece of advice prior to purchase is to think about what you want to do or might want to do in the future. If you were going to say reload, you would want something that does grains. If you are or might be into jewelry you will want carats. I chose to get one that does them all, I figured it would be more useful as I only planned to buy one that way. Also all but the cheapest should have a tare feature, so you can put a container on the scale, zero it out, and then weigh--- effectively removing the weight of the container from the equation. Edited to add: this is the one I have. I purchased it from Sears online, not Amazon, but I cant find the sears listing. http://www.amazon.com/dp/B003VDYCR0/Edited by Secret Argent Man
12/06/2011 11:27 pm
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Rest in Peace
United States
9104 Posts |
Reminds me of when I took my digital scale to the state inspection and found out the weight they had used for 30 years was off.
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Posted 12/02/2011 11:46 am
