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<p>[QUOTE="dougsmit, post: 2745737, member: 19463"]After reading the reviews on the scale Jim linked above, I decided I may not need a new scale after all. My complaints of each scale I have tried are the same. The one above comes with a 50g calibration weight which is the maximum of the scale. I have three calibration weights that came with scales but they do not agree on how much they weigh. If you calibrate a scale with a weight that is .01g over or under, don't count on accuracy of the .001 digit. I want to weigh coins between .01 and 20.00g for the most part but none calibrate for a point other than the maximum. This does not bode well for that last digit on small coins. Never use a scale in a room with a ceiling fan or while the a/c is running. Drafts weigh as much as some coins. Weigh the same coin on your scales ten times on ten different days and record the results each time. If the last number changes, realize that your results are not accurate to that digit. I'd buy a new .001g scale if I felt any confidence that it was more accurate to .01g than the one I have. As it is, I believe in my results for .1g accuracy and say that is good enough for what I am doing. I wish I could calibrate my scales to match results on a coin bought with a weight given from some other dealer but what I get and what CNG gives me in their descriptions are not consistently off by the same amount every time. Does this comment on their scales, their techniques or mine? Scale quality is important but proper techniques and calibration are every bit as much so.</p><p><br /></p><p>Buy a reasonable scale like the one TIF showed and realize that the last digit is not something to be worshiped.[/QUOTE]</p><p><br /></p>
[QUOTE="dougsmit, post: 2745737, member: 19463"]After reading the reviews on the scale Jim linked above, I decided I may not need a new scale after all. My complaints of each scale I have tried are the same. The one above comes with a 50g calibration weight which is the maximum of the scale. I have three calibration weights that came with scales but they do not agree on how much they weigh. If you calibrate a scale with a weight that is .01g over or under, don't count on accuracy of the .001 digit. I want to weigh coins between .01 and 20.00g for the most part but none calibrate for a point other than the maximum. This does not bode well for that last digit on small coins. Never use a scale in a room with a ceiling fan or while the a/c is running. Drafts weigh as much as some coins. Weigh the same coin on your scales ten times on ten different days and record the results each time. If the last number changes, realize that your results are not accurate to that digit. I'd buy a new .001g scale if I felt any confidence that it was more accurate to .01g than the one I have. As it is, I believe in my results for .1g accuracy and say that is good enough for what I am doing. I wish I could calibrate my scales to match results on a coin bought with a weight given from some other dealer but what I get and what CNG gives me in their descriptions are not consistently off by the same amount every time. Does this comment on their scales, their techniques or mine? Scale quality is important but proper techniques and calibration are every bit as much so. Buy a reasonable scale like the one TIF showed and realize that the last digit is not something to be worshiped.[/QUOTE]
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