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An accurate bathroom scale
I tried out several digital bathroom scales at the local mall, and
found that the $40 to $50 scales were not very accurate. All of them seemed to indicate a slightly different weight when I stepped on and off of them repeatedly. They varied a lot between each other, and the indicated weight varied a lot depending upon how my weight was centered on the platform. I took home the Homedics SC-403, for $50, which seemed the best. But I ended up returning it after two weeks for all of the above reasons. Plus it consistently weighed about 2 pounds too heavy, and the factory said there was no solution to that. Then I ordered a Soehnle model Zeta from Amazon.com for $99 and it is great! As near as I can tell, it reads well within 1/2 pound, or better, of my true weight, and it reads the same every time. In 15 successive weighings it reads exactly the same, to 1/10 of a pound, no matter vary the distribution of my weight on the platform. Even standing on one edge of the platform on one foot, it reads exactly the same. The display is large enough to read in the morning without my glasses, the platform and base are glass, and the scale looks good. A nice bonus is that it will weight light objects with great accuracy. A carefully measured gallon of water in a plastic milk jug indicates 8.4 pounds, which is exactly correct. This is kind of nice if you ever need the weight of a box for shipping, or to weigh any other light object. This scale costs twice as much, but it sure seems to be a fine piece of German engineering for home use. John "RT" wrote in message . .. Well I finally went and got a spiffy Tanita today, to retire my aging analog scale. Well, imagine my surprise when I jumped up on the new scale and it shows me at approx 3lbs less than the analog scale. I reset the analog scale with the dial and tried it again (in the same physical position as the Tanita, etc) and the difference is still about 2lbs. Of course I love the lower figure, but I want to be accurate :-) Any opinions on how trustworthy either scale/method is? Richard 247/218 or 215/200 |
#2
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An accurate bathroom scale
"John" wrote in message
om... I tried out several digital bathroom scales at the local mall, and found that the $40 to $50 scales were not very accurate. All of them seemed to indicate a slightly different weight when I stepped on and off of them repeatedly. They varied a lot between each other, and the indicated weight varied a lot depending upon how my weight was centered on the platform. I took home the Homedics SC-403, for $50, which seemed the best. But I ended up returning it after two weeks for all of the above reasons. Plus it consistently weighed about 2 pounds too heavy, and the factory said there was no solution to that. Then I ordered a Soehnle model Zeta from Amazon.com for $99 and it is great! As near as I can tell, it reads well within 1/2 pound, or better, of my true weight, and it reads the same every time. In 15 successive weighings it reads exactly the same, to 1/10 of a pound, no matter vary the distribution of my weight on the platform. Even standing on one edge of the platform on one foot, it reads exactly the same. The display is large enough to read in the morning without my glasses, the platform and base are glass, and the scale looks good. A nice bonus is that it will weight light objects with great accuracy. A carefully measured gallon of water in a plastic milk jug indicates 8.4 pounds, which is exactly correct. This is kind of nice if you ever need the weight of a box for shipping, or to weigh any other light object. This scale costs twice as much, but it sure seems to be a fine piece of German engineering for home use. That's a good looking scale, and according to the manufacturer it is accurate to 0.1 lbs (50 g). Good report too...perhaps you could post a review on the Amazon site. Here's a link: to the scale on Amazon: http://www.amazon.com/exec/obidos/AS...astasoftwar-20 BTW - the Tanita scales mentioned in the original post were recently rated well by Consumer Reports for their scale accuracy and repeatability (less so for the body fat interpretations). GG John "RT" wrote in message . .. Well I finally went and got a spiffy Tanita today, to retire my aging analog scale. Well, imagine my surprise when I jumped up on the new scale and it shows me at approx 3lbs less than the analog scale. I reset the analog scale with the dial and tried it again (in the same physical position as the Tanita, etc) and the difference is still about 2lbs. Of course I love the lower figure, but I want to be accurate :-) Any opinions on how trustworthy either scale/method is? Richard 247/218 or 215/200 |
#4
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An accurate bathroom scale
hanson wrote in message . ..
I've been looking for an accurate scale myself. Can you do an experiment for me? Take a standard unopened pop can. It should weigh about .83 pounds for the weight of the can + liquid inside. I've got a "Thinner" scale from Fry's. It seems pretty reliable and passed your test (213 - 213.5 with can). $50, uses strain gauges at each corner, LCD output accurate to 0.5 lbs. I would like one accurate to 0.1, but I suppose with the daily averaging I do the extra accuracy would be rather pointless. As an aside, I bought this scale in Sept 2000, and just this week got below the weight that I first saw on that scale back then (211... Yay, 3 years of bad eating (kinda) reversed!) Heywood 232/211/182, in week 10 |
#5
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An accurate bathroom scale
I found your question interesting. It never occured to me that such a
"memory" attribute might be at work inside the scale. So I tried your experiment, but I repeated it through six cycles, rather than three. Here are the numbers: 163.2 without 163.9 with 163.2 without 163.9 with 163.1 without 164.0 with 163.1 without 163.9 with 163.1 without 164.0 with 163.1 without 163.9 with I hope this is helpful. BTW, I tried weighing a single pop can by itself, but that wasn't enough weight to keep the scale turned ON. It would stay on with three pop cans alone and the indicated weight was 2.5 pounds. Best regards, John hanson wrote in message . .. I've been looking for an accurate scale myself. Can you do an experiment for me? Take a standard unopened pop can. It should weigh about .83 pounds for the weight of the can + liquid inside. Weigh yourself without the pop can. Weigh yourself with the pop can. Weigh yourself again without the pop can. Repeat 3x. Questions: 1) does the scale accurate report the .83 pound change of the pop can 2) Is the weight doing the above consistent |
#6
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An accurate bathroom scale
I think your idea is off. The concept that the scale ignores its
current measurement and reports a previous one is silly. I have a Tanita (HD351 Digital Scale) and IT DOES remember your last weigh-in. It is a feature. It always displays the previous weight for each of the five user positions. My soda can weighed 13 1/8 oz, or .82 lbs, via a digital kitchen scale. My Tanita, which has a .2 lb minimum resolution, reported in the sequence I performed them: 303.0 w/o 304.2 with 303.2 w/o 304.0 with 303.2 w/o 304.0 with 303.0 w/o 304.0 with 303.0 w/o 304.0 with I normally take two measures and average--giving me some degree of .1 resolution. The average without the can was 303.08 The average with the can was 304.04 The difference is 0.96 which is close to the 0.82 actual. hanson wrote: I've been looking for an accurate scale myself. Can you do an experiment for me? Take a standard unopened pop can. It should weigh about .83 pounds for the weight of the can + liquid inside. Weigh yourself without the pop can. Weigh yourself with the pop can. Weigh yourself again without the pop can. Repeat 3x. Questions: 1) does the scale accurate report the .83 pound change of the pop can 2) Is the weight doing the above consistent I bought a few scales and stepped on then off then on again and they always gave back the same answer. I went to the bathroom and weigh myself and I figure I should be about .5 pounds lighter since I urinated out at least a few cups but it reads the same. Apparently most scales are "smart" in that they remember the last weight and then if you are approximately (within 1 pound) of the same weight, it reports the EXACT same number so that you think it is consistent while it is just recalling it's memory! Is your Amazon Zeta scale truely accurate or is it just one of those electronic memory gizmos? Thanks. On 18 Apr 2004 12:34:34 -0700, (John) wrote: I tried out several digital bathroom scales at the local mall, and found that the $40 to $50 scales were not very accurate. All of them seemed to indicate a slightly different weight when I stepped on and off of them repeatedly. They varied a lot between each other, and the indicated weight varied a lot depending upon how my weight was centered on the platform. I took home the Homedics SC-403, for $50, which seemed the best. But I ended up returning it after two weeks for all of the above reasons. Plus it consistently weighed about 2 pounds too heavy, and the factory said there was no solution to that. Then I ordered a Soehnle model Zeta from Amazon.com for $99 and it is great! As near as I can tell, it reads well within 1/2 pound, or better, of my true weight, and it reads the same every time. In 15 successive weighings it reads exactly the same, to 1/10 of a pound, no matter vary the distribution of my weight on the platform. Even standing on one edge of the platform on one foot, it reads exactly the same. The display is large enough to read in the morning without my glasses, the platform and base are glass, and the scale looks good. A nice bonus is that it will weight light objects with great accuracy. A carefully measured gallon of water in a plastic milk jug indicates 8.4 pounds, which is exactly correct. This is kind of nice if you ever need the weight of a box for shipping, or to weigh any other light object. This scale costs twice as much, but it sure seems to be a fine piece of German engineering for home use. John "RT" wrote in message . .. Well I finally went and got a spiffy Tanita today, to retire my aging analog scale. Well, imagine my surprise when I jumped up on the new scale and it shows me at approx 3lbs less than the analog scale. I reset the analog scale with the dial and tried it again (in the same physical position as the Tanita, etc) and the difference is still about 2lbs. Of course I love the lower figure, but I want to be accurate :-) Any opinions on how trustworthy either scale/method is? Richard 247/218 or 215/200 DiGiTAL_ViNYL (no email) 350/300/Apr-299/200 Atkins since Jan 12, 2004 OWL-60 carbs/day (CCLL=?) |
#7
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An accurate bathroom scale
"Howard" wrote in message ... (John) wrote: A carefully measured gallon of water in a plastic milk jug indicates 8.4 pounds, which is exactly correct. Hmmm... I always thought a gallon of water weighed exactly 8 lbs. I assume that 8.4 includes the weight of the container. http://www.freshcoffee.biz Actually it is 8.3. A very important number to remember for us in the fire service when taking into the consideration of the weight of water on a structure. |
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