Yes...but the calibration function of the scale is specifically designed for use with a 100g weight. To use the calibration function I would have to stack 20 nickles, no?Intuit wrote:You shouldn't have bothered with calibration weight of 100g. Why? Because your scale range is 1-100g!
Re: Don't waste your money!
*shrug* calibrating for 100 grams, when you are interested in weighing only a few 100ths of that mass, is irrelevant.
You can and should check your scale for accuracy over the appropriate range.
*squint*
Reading the user's manual that specifies using two 50g weights, first one, weighing it and then adding a second (for a total of 100) 50-g mass for complete...
a 2-Point calibration...would be useful!
http://www.americanweigh.com/images/PDF ... manual.pdf.
Your 100g mass isn't going to work for internal calibration unless you purchase a 50g weight....or you could use a stack of 10 nickels.
My point is this: a quickie check of accuracy at the low end of mass range is a good idea if you are going to put your faith in this little precision pocket scale.
You can and should check your scale for accuracy over the appropriate range.
*squint*
Reading the user's manual that specifies using two 50g weights, first one, weighing it and then adding a second (for a total of 100) 50-g mass for complete...
a 2-Point calibration...would be useful!
http://www.americanweigh.com/images/PDF ... manual.pdf.
Your 100g mass isn't going to work for internal calibration unless you purchase a 50g weight....or you could use a stack of 10 nickels.
My point is this: a quickie check of accuracy at the low end of mass range is a good idea if you are going to put your faith in this little precision pocket scale.
Last edited by Intuit on May 22nd 09 3:17 am, edited 1 time in total.
Fortunately, we have a plan!
Intuitively, we know that this scale is a good training tool for learning how to guesstimate (with occasional checks) your less finicky teas.
(thus sparing tea fairies the world over from the humiliation of being wingless)
(thus sparing tea fairies the world over from the humiliation of being wingless)
Point taken...Intuit wrote:My point is this: a quickie check of accuracy at the low end of mass range is a good idea if you are going to put your faith in this little precision pocket scale.
I used a nickel to check the low end of the scale and the display teeters between 4.99g and 5.00g
With a sample size of 30 nickels my mean weight was 4.99g and the sample was normally distributed. I didn't really feel like taking the time to figure out the standard deviation but it was a neat little exercise none the less!
Anyhow, It's accurate enough for my purpose.
Mike
May 22nd 09 6:10 pm
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Location: Back in the TeaCave atop Mt. Fuji
But ... but ... <wipes tear from eye> they make me so very proud.woozl wrote:You guys drink entirely too much tea.
As OCD as I am about these things, I have not done the 30 nickels, etc. But if I want 5 grams of tea, I do weigh it to 5.00 grams.
There is a mad lab scientist inside me somewhere.I did do a dime once, weighs about 2.3 grams depending on wear and tear ... coincidentally the exact weight of an English brew method for 6 ounces o' tea!
blah blah blah SENCHA blah blah blah!!!
"With a sample size of 30 nickels my mean weight was 4.99g and the sample was normally distributed. "
N=30 !
Impressive, with maybe just a hint of OCD tendency. :-)
Normal distribution of sample mass and close result to expected average mass suggests that your scale is within the limits of error (+/1 0.01g) and is functioning correctly (assuming that the mint is cranking out coinage at the right weight).
"Good enough for government work!"
N=30 !
Impressive, with maybe just a hint of OCD tendency. :-)
Normal distribution of sample mass and close result to expected average mass suggests that your scale is within the limits of error (+/1 0.01g) and is functioning correctly (assuming that the mint is cranking out coinage at the right weight).
"Good enough for government work!"
after reading this, I went ahead and checked my scale. It is an amazon cheapie, a "my weigh" 400-z http://www.amazon.com/My-Weigh-400-Z-Po ... B001181UM2 for $17.00 (I think I paid less and got free shipping).
Anyhow, since I had a bunch of old nickles laying about, I tested it.
1912 4.9
1927 4.9
1947 5.0
1955 5.0
1986 5.0
2001 5.0
pretty consistant. I tried it using the cover, which flips over to make a little bowl to hold the tea. No difference with the cover tared out. The cover itself is 17.0 grams. Not sure of the value of two digits past the decmil point .....
I like to weigh my tea, as depending on how leafy it is or brick-like, it is hard to judge by volume.
I don't really try for any exact amount, so 5.2 is fine, or 6.8. I just adjust the water abit to match whether it is a large amount or not.
I would normally add tea, rather than take away any I have put out.
Anyhow, since I had a bunch of old nickles laying about, I tested it.
1912 4.9
1927 4.9
1947 5.0
1955 5.0
1986 5.0
2001 5.0
pretty consistant. I tried it using the cover, which flips over to make a little bowl to hold the tea. No difference with the cover tared out. The cover itself is 17.0 grams. Not sure of the value of two digits past the decmil point .....
I like to weigh my tea, as depending on how leafy it is or brick-like, it is hard to judge by volume.
I don't really try for any exact amount, so 5.2 is fine, or 6.8. I just adjust the water abit to match whether it is a large amount or not.
I would normally add tea, rather than take away any I have put out.
Nice scale, Dude!
Like Mr Verlain's scale much more than the pocket model. Each is cheap enough to have one at home and one at work (presuming you can explain your "OCTea" tendencies to your colleagues). *wink*
Tom's is slightly less precise at +/1 tenths of a gram, but has three times the range, tares, has temperature compenstation, and autocalibrates as well. I like the cover that serves as weigh boat - nice touch!
Both are surprisingly affordable scales. The professional models used in labs are spendy.
Tom's is slightly less precise at +/1 tenths of a gram, but has three times the range, tares, has temperature compenstation, and autocalibrates as well. I like the cover that serves as weigh boat - nice touch!
Both are surprisingly affordable scales. The professional models used in labs are spendy.
Re: Nice scale, Dude!
Meh... Most of them think I'm nuts anyways.Intuit wrote:(presuming you can explain your "OCTea" tendencies to your colleagues). *wink*
S'ok... I like it that way!
