Gem Pro 250

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Walkalong

Walkalong

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I have been toying with buying the Gem Pro 250 for a couple of years or so. My first experience with an electronic scale was many years ago and it ended badly, especially for the scale. (I bounced it off of a tile floor and tossed it in the trash.)

While I have had it bookmarked for at least two years, and eyeballed it from time to time, this recent thread got me excited about the idea again. I bought one, set it up and played with it the other day, and used it for the first time today.

They say to let it adjust to room temp for an hour and turn it on for 5 or 6 minutes before using it. I have found it likes to be turned on for at least a half hour before fluctuating if you open or close the top. Once it did, open or closed was at 0.00, before it would be 0.00 with the top up and go slightly negative with the top open. It would go back and forth if you opened and closed it. After warming up long enough it would stay at 0.00 all the time.

I don't think it is any faster than my balance beam, but it can certainly be more accurate in so far as instead of over and under on the pointer to the same amount to get an average drop, I can easily read exactly what it drops every time. No more accurate for the drops from the measure, but more accurate telling me exactly what each drop is with out adjusting the tabs on the balance beam, which I don't usually do, I just adjusted the measure until it dropped at the weight set so that over many drops the pointer will be dead on, and above and below the same amount for all drops.

The scale has been pretty much dead on with check weights and very consistent weighing charges and objects. Weigh something, leave it alone for awhile, weigh it again, and it weighs exactly the same again.

I am very happy with it. :)
 
My experience mirrors yours. I leave it plugged in all the time so I don't have to wait for it to warm up when the urge to load hits me. I bought one 4 years ago and use it all the time to set and verify pistol loads on my progressive. I quit using my beam scale. Had a hiccup though. A month or so ago, I sat down to load some pistol rounds and couldn't get the powder measure to drop consistently, or so I thought. I dragged out the beam scale and found that it and the Gempro no longer agreed and the Gempro reading was starting to randomly bounce around some. Long story short, I sent it to My Weigh in Arizona under their lifetime warranty and got a brand new one in return. My beam scale and electronic scale agree once again.
 
I also have one on my bench. along w/a few other digital's in question. I would like to put it into a more controlled environment. By my powder room in house as I have enough out here. I myself love it but cant use it as well as one that will except the shall we say shop? air current as you know/temps swings movement. But other then that it needs that stabilization. I think it is one of the best!
 
I bought one last year, but honestly I haven't been able to give it much of a test. The first "problem" I had is getting used to it reading in 100ths! That little feature makes you think of it as less accurate than it actually is....after all who cares whether it can't make up it's mind on whether a load weighs 6.05 grains or 6.06 grains.:)

I'm interested in the revelations on warm-up time effect and I'm also wondering just how room temperature affects it, stored or in use. My room stays at about 65 degrees in winter unless I plan on loading for an evening....then I turn up the heat....so I'm probably adding stress to it .... and as I get older I'm needing more heat to stay comfortable.:rolleyes:
 
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I have 2 GEMPRO 250's and like them a lot. I have had them for about 3 years. The only issue I have had with them is the AC Power Adapter quit working. I contacted MyWeigh, and they sent me a new one.

Here is a link to their support page that describes how a digital scale works and what to look for. Very Good Read

http://myweigh.com/support/

It explains what some are calling anomalies or problems, and how to resolve it.

Lefty TSGC:D
 
Walkalong,

An update to my earlier post… I sat down with my new (replacement) Gem Pro 250 today in earnest for the first time since I received it a week ago. It has been plugged in and turned on constantly since then, so it’s safe to say it has warmed up. The first thing I noticed today was it had drifted from 0.00 to 1.14 grains over the past couple of days. I didn’t notice if it was + or - before I tared it. But, then it started doing what yours did, that is, the reading changed depending on if the lid was open or closed. It also changed if I moved it around on the bench or if I touched the lid. Just to see what would happen, I sprayed some Static Guard on a clean cotton rag and wiped down the lid, inside and out. The problem instantly disappeared. The zero reading is now steady as a rock when I open and close the lid, scoot it around on its rubber pad, touch it, wave my hands around it in voodoo fashion and/or snarl at it in a threatening manner. It just calmly sits there and stares at me with 0.00. I also tested it with check weights and actual powder loads and it was dead on with my beam scale and steady as a rock. Just thought I would pass that on to you and others who might have the same experience.
 
Sounds reasonable, as we know what static can do with measures. Thanks.
 
My rcbs 1500 digital w/out the charge-master unit is what i like to use along w/the two zeroing weights. Warm up time/next to none. W/all I have going on it works very accurate for me. Heater/air current but I can tell movement/moderate. Dial "o" gram ohaus nope. Now im working w/small charges .380/9mm. allot. Then dill. beam to verify.
 
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