Re: ShopTalk: Initial Electronic Scale Evaluation
Thank God for the freedom to choose, and the soldiers, marines, sailors, and airman keeping it that way. Digital for you and analog for me! ;-) Fairways and Greens, Cub - Original Message - From: Harry F. Schiestel [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, June 16, 2004 4:12 PM Subject: ShopTalk: Initial Electronic Scale Evaluation Ed, great thorough evaluation on the digital scale performance. Royce, that would be 'correct eh' and thanks for being so insightful. Jen, what did you pay for the Scale in our funny CAD money? Cub, I'm with Jen. I've worked with Triple Beam and Digital, and have completed Gauge RR studies on both ... my choice is with digital. Thanks Harry S www.Golf54.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Royce Engler Sent: June 16, 2004 8:09 AM To: [EMAIL PROTECTED] Subject: RE: ShopTalk: Initial Electronic Scale Evaluation Sothat would be Canadian Weigh, eh? GRIN Royce
RE: ShopTalk: Initial Electronic Scale Evaluation
:) ALL Happy Campers right Cub ... Yes Choice!! Thanks HFS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Steve Cub Culbreth Sent: June 17, 2004 3:10 AM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: Initial Electronic Scale Evaluation Thank God for the freedom to choose, and the soldiers, marines, sailors, and airman keeping it that way. Digital for you and analog for me! ;-) Fairways and Greens, Cub
Re: ShopTalk: Initial Electronic Scale Evaluation
It was basically $100 CAD... I could have gone for the cheap Golfsmith scale or other cheaper ones but I thought I'd invest in a good scale and it has a lifetime warranty, most others had 1 year or 5 years. Jen Harry F. Schiestel wrote: Ed, great thorough evaluation on the digital scale performance. Royce, that would be 'correct eh' and thanks for being so insightful. Jen, what did you pay for the Scale in our funny CAD money? Cub, I'm with Jen. I've worked with Triple Beam and Digital, and have completed Gauge RR studies on both ... my choice is with digital. Thanks Harry S www.Golf54.com
Re: ShopTalk: Initial Electronic Scale Evaluation
Hi Ed, I too just bought the same scale and got it Monday. My testing was not quite a thorough (turn it on, test with the calibration weight, go with it)... LOL. The calibration weight they shipped was 500g, and it was exact consistently. I don't know for sure the weight of anything else so trying to calibrate or test accuracy was irrelevant. I measured the heads from Wishon that I bought and they were each .4 to .5 grams too high compared to the sticker on the cellophane. Then I removed the cellophane and bingo, apparently it weights .4g. (What a newbie eh?). It's been great having a scale as I built this set and now I wonder how I did without it. I caught a major gaffe (sp?) in my prior technique with predicting swingweight in that the grip I used doesn't way close to the final grips and I never put two and two together. I took an old grip, trimmed off enough rubber to match the average weight of the grips I was going to use and voila, the readings this time should be closer to reality. Funny how something so simple doesn't cross your mind sometimes - and it's so obvious a thing to cause a difference too. Oh well. I chose to buy digital instead of a triple beam because of the time savings for me... and realize I paid a premium for that but overall this seems to be a great scale and will be a valuable addition to my workbench. I bought it from Canadian Weigh (canadianweigh.com) and received it promptly... pleased with the process. Jen Ed Reeder wrote: I purchased a My Weigh i500 scale and wanted to give an initial evaluation. So far it has been wonderful. snip Bottom line. It appears the scale is VERY repeatable and accurate. The only issue seems to be a slight sensitivity to temperature. (The scale does have compensation for temperature changes). However, you can simply check for a possible anomaly with the calibration weight and easily perform a calibration if desired. /Ed
RE: ShopTalk: Initial Electronic Scale Evaluation
Sothat would be Canadian Weigh, eh? GRIN Royce -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jen Kuntz Sent: Wednesday, June 16, 2004 5:50 AM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: Initial Electronic Scale Evaluation Hi Ed, I too just bought the same scale and got it Monday. My testing was not quite a thorough (turn it on, test with the calibration weight, go with it)... LOL. The calibration weight they shipped was 500g, and it was exact consistently. I don't know for sure the weight of anything else so trying to calibrate or test accuracy was irrelevant. I measured the heads from Wishon that I bought and they were each .4 to .5 grams too high compared to the sticker on the cellophane. Then I removed the cellophane and bingo, apparently it weights .4g. (What a newbie eh?). It's been great having a scale as I built this set and now I wonder how I did without it. I caught a major gaffe (sp?) in my prior technique with predicting swingweight in that the grip I used doesn't way close to the final grips and I never put two and two together. I took an old grip, trimmed off enough rubber to match the average weight of the grips I was going to use and voila, the readings this time should be closer to reality. Funny how something so simple doesn't cross your mind sometimes - and it's so obvious a thing to cause a difference too. Oh well. I chose to buy digital instead of a triple beam because of the time savings for me... and realize I paid a premium for that but overall this seems to be a great scale and will be a valuable addition to my workbench. I bought it from Canadian Weigh (canadianweigh.com) and received it promptly... pleased with the process. Jen Ed Reeder wrote: I purchased a My Weigh i500 scale and wanted to give an initial evaluation. So far it has been wonderful. snip Bottom line. It appears the scale is VERY repeatable and accurate. The only issue seems to be a slight sensitivity to temperature. (The scale does have compensation for temperature changes). However, you can simply check for a possible anomaly with the calibration weight and easily perform a calibration if desired. /Ed
Re: ShopTalk: Initial Electronic Scale Evaluation
Cub, That's fair. I wanted the speed and tare functions. In fact I was torn between the i500 and the My Weigh balance which on paper is better than the Ohaus. It comes with extra weights and has a magnetic damper to get quicker readings. /Ed Steve Cub Culbreth wrote: Ed, Not to sound pissy but I would still chose a used Ohaus Triple Beam for $45. I have far to many years working in electronics to trust digital measurements. Most of those years managing the calibration schedule for test equipment. Cub - Original Message - From: Ed Reeder [EMAIL PROTECTED] To: clubmaker online [EMAIL PROTECTED] Sent: Tuesday, June 15, 2004 6:17 PM Subject: ShopTalk: Initial Electronic Scale Evaluation I purchased a My Weigh i500 scale and wanted to give an initial evaluation. So far it has been wonderful. Today was 98 degrees where I live and when the unit was delivered I set it up inside, 78 degrees, and started measuring. I measured the 500g calibration weight that came with it and got 499.7g. I then measured 5 heads from Wishon that had their weights listed. The weight and each head were measured four times as the unit cooled from 98 degrees to 78 degrees. The cooling period was about 30 minutes. The unit was turned off and on multiple times during the tests. The calibration weight was 499.7g each time. The heads measured the same weights 16 of the 20 (5 x 4) times. Twice I got a +0.1g difference and twice I got a -0.1g difference. This while the unit was cooling from 98 to 78 degrees. The scale stabilized its readings very quickly, much quicker than my old 1000g GS scale. I calibrated the scale to 500g and performed a series of measurements over a 30 minute time period. Each of the six times I measured the calibration weight I got 500.0g. Three of the five heads measured exactly what Wishon said (e.g., 251.8g). The two that were off were .4g and .5g too much (to jump ahead, I believe the i500's values more than what was marked on the heads). I measured the heads multiple times and got EXACTLY the same results each time. I then put an 8.1g weight on the scale and measured the heads. Each was increased by 8.1 grams. I then tare'd the scale with the 8.1g weight on it. I then measured each head again. Four were exact and two were 0.1g light. I tried a 153.3g weight in the same way as the 8.1g weight. Here two values were increased by 153.3g and three were increased by an additional 0.1g. I tare'd the scale and weighed the heads. Four of the five were exact and one was 0.1g heavy. I then weighed and tare'd weights of 0.5g, 0.7g, 1.9g, 7.5g, 38.1g, 251.8g, and 500g. Each time the appropriate weight was replaced the scale read 0.0g! I did this multiple times with the same results. Once calibrated and cool, the only time the scale was even off 0.1g was when I was weighing two items and expected the total of the two weights to add up. However, when weighing two or more items you aren't accounting for cumulative rounding errors (e.g., 5.54g + 3.54g = 9.08 [rounds to 9.1] while you are expecting 5.5 + 3.5 = 9.0) Later in the evening, when cooler, I turned the scale on and got 499.9g. I did this repeatedly with the same results. The heads were each likewise 0.1g light. Bottom line. It appears the scale is VERY repeatable and accurate. The only issue seems to be a slight sensitivity to temperature. (The scale does have compensation for temperature changes). However, you can simply check for a possible anomaly with the calibration weight and easily perform a calibration if desired. The scale and a 500g calibration weight were $77.76 including shipping. http://www.precision-balances.com/myweigh/i500.html /Ed
Re: ShopTalk: Initial Electronic Scale Evaluation
I told you so! Arnie
Re: ShopTalk: Initial Electronic Scale Evaluation
Ed, Not to sound pissy but I would still chose a used Ohaus Triple Beam for $45. I have far to many years working in electronics to trust digital measurements. Most of those years managing the calibration schedule for test equipment. Cub - Original Message - From: Ed Reeder [EMAIL PROTECTED] To: clubmaker online [EMAIL PROTECTED] Sent: Tuesday, June 15, 2004 6:17 PM Subject: ShopTalk: Initial Electronic Scale Evaluation I purchased a My Weigh i500 scale and wanted to give an initial evaluation. So far it has been wonderful. Today was 98 degrees where I live and when the unit was delivered I set it up inside, 78 degrees, and started measuring. I measured the 500g calibration weight that came with it and got 499.7g. I then measured 5 heads from Wishon that had their weights listed. The weight and each head were measured four times as the unit cooled from 98 degrees to 78 degrees. The cooling period was about 30 minutes. The unit was turned off and on multiple times during the tests. The calibration weight was 499.7g each time. The heads measured the same weights 16 of the 20 (5 x 4) times. Twice I got a +0.1g difference and twice I got a -0.1g difference. This while the unit was cooling from 98 to 78 degrees. The scale stabilized its readings very quickly, much quicker than my old 1000g GS scale. I calibrated the scale to 500g and performed a series of measurements over a 30 minute time period. Each of the six times I measured the calibration weight I got 500.0g. Three of the five heads measured exactly what Wishon said (e.g., 251.8g). The two that were off were .4g and .5g too much (to jump ahead, I believe the i500's values more than what was marked on the heads). I measured the heads multiple times and got EXACTLY the same results each time. I then put an 8.1g weight on the scale and measured the heads. Each was increased by 8.1 grams. I then tare'd the scale with the 8.1g weight on it. I then measured each head again. Four were exact and two were 0.1g light. I tried a 153.3g weight in the same way as the 8.1g weight. Here two values were increased by 153.3g and three were increased by an additional 0.1g. I tare'd the scale and weighed the heads. Four of the five were exact and one was 0.1g heavy. I then weighed and tare'd weights of 0.5g, 0.7g, 1.9g, 7.5g, 38.1g, 251.8g, and 500g. Each time the appropriate weight was replaced the scale read 0.0g! I did this multiple times with the same results. Once calibrated and cool, the only time the scale was even off 0.1g was when I was weighing two items and expected the total of the two weights to add up. However, when weighing two or more items you aren't accounting for cumulative rounding errors (e.g., 5.54g + 3.54g = 9.08 [rounds to 9.1] while you are expecting 5.5 + 3.5 = 9.0) Later in the evening, when cooler, I turned the scale on and got 499.9g. I did this repeatedly with the same results. The heads were each likewise 0.1g light. Bottom line. It appears the scale is VERY repeatable and accurate. The only issue seems to be a slight sensitivity to temperature. (The scale does have compensation for temperature changes). However, you can simply check for a possible anomaly with the calibration weight and easily perform a calibration if desired. The scale and a 500g calibration weight were $77.76 including shipping. http://www.precision-balances.com/myweigh/i500.html /Ed
