GemPro 250 owners i have a question!

WhoKilledBambi

WhoKilledBambi

CGN Regular
Rating - 99.4%
166   1   0
Location
Montreal
Hello guys,

Looking to update my scale (RangeMaster750) to a GemPro250.

Can you guys confirm i can weight grains with it? On this site it doesnt say i can measure grains with it and i'm a bit confused.

https://canadianweigh.com/products/gempro-250

Thank you!
JP
 
Do yourself a favor and make sure your get a couple of ferrite core snaps to put on the power adapter wire. Helps tremendously with interference and drift. Been using mine for over 6 years and it's always on regardless of I'm using it or not.
 
I have had one for 6 years. Plugged it in, turned it one, calibrated and it has been turned on ever since.

Works very well. My workshop has 3 lights - all are LED.

I have a dime sitting beside it. From time to time I weight the dime as a check weight. 27.4gr

A different dime on my Chargemaster is 27.3gr.

I don't care about absolute accuracy - just that the scale has not changed its reading.
 
Does GemPro have the "floating zero" problem with the cheaper electronic scales? What I mean by floating zero is:

1. Tare the scale with the pan on to have it show 0.
2. Remove the pan, scale shows a negative number A.
3. Put pan back on, then gradually trickle powder into the pan.
4. Remove the pan, scale shows a negative number B.

I found on most electronic scales I've used, number A and B will vary from time to time. My theory is that when a single kernel drops into the pan, scale's internal logic might not interpret it as a change in weight, but rather fluctuation in the environment, thus the scale tries to compensate it by changing the zero reference, resulting in number A and B being different.

I found this very annoying as I always have to double check my weight by re-taring the scale. Does GemPro have this issue or being more expensive makes it immune to this pitfall?
 
diegocn said:
Does GemPro have the "floating zero" problem with the cheaper electronic scales? What I mean by floating zero is:

1. Tare the scale with the pan on to have it show 0.
2. Remove the pan, scale shows a negative number A.
3. Put pan back on, then gradually trickle powder into the pan.
4. Remove the pan, scale shows a negative number B.

I found on most electronic scales I've used, number A and B will vary from time to time. My theory is that when a single kernel drops into the pan, scale's internal logic might not interpret it as a change in weight, but rather fluctuation in the environment, thus the scale tries to compensate it by changing the zero reference, resulting in number A and B being different.

I found this very annoying as I always have to double check my weight by re-taring the scale. Does GemPro have this issue or being more expensive makes it immune to this pitfall?
Click to expand...

The Gempro 250 does have drift or as you call it floating zero. It sensitive to temperature changes and EM interference. I tare my scale often and calibrate the scale at a start of a new session if I notice drift from my zero I tare it. Down the road I will move to the ADI and the autotickler but it's not in the books in the immediate future.
 
308BAR said:
The Gempro 250 does have drift or as you call it floating zero. It sensitive to temperature changes and EM interference. I tare my scale often and calibrate the scale at a start of a new session if I notice drift from my zero I tare it. Down the road I will move to the ADI and the autotickler but it's not in the books in the immediate future.
Click to expand...

Is there any electronic scale (at reasonable level for reloading) that doesn't drift? I've seen people using the omega trickler with high end scale like A&D Fx-120i. If drifting is an universal issue with electronic scale, how do people ensure trickling into the scale doesn't cause the scale to drift?
 
I'm looking for something like a 250 right now, and it appears to me that the 300 is a step down from the 250. People claim that it drifts worse than the 250, and videos show that it's really slow to stabilize. Way slower than the 250, which isn't ideal for trickling.
I can still find the 250 for sale in Canada, but also wonder if there's something better around the same price range.
 
diegocn said:
Is there any electronic scale (at reasonable level for reloading) that doesn't drift? I've seen people using the omega trickler with high end scale like A&D Fx-120i. If drifting is an universal issue with electronic scale, how do people ensure trickling into the scale doesn't cause the scale to drift?
Click to expand...

I think you'll find most scale will drift or be sensitive to something. I use my empty scale plan as the reference for the tare 92.14gn. If you trickle or drop, remove the pan with the powder from the platform and let it settle and see where your - tare is. If it matches your weight of your pan then replace pan and you can assume the zero is still on and your charge is accurate to at least+/-0.02gn. I run two scale and powder pan btw. One for the gem250 and for chargemaster.
 
Last edited:
308BAR said:
I think you'll find most scale will drift or be sensitive to something. I use my empty scale plan as the reference for the tare 92.14gn. If you trickle or drop, remove the pan with the powder from the platform and let it settle and see where your - tare is. If it matches your weight of your pan then replace pan and you can assume the zero is still on and your charge is accurate to at least+/-0.02gn. I run two scale and powder pan btw. One for the gem250 and for chargemaster.
Click to expand...

Thank you. I've been doing the same with my amazon $40 scale. I've always wondered if spending more money can make this problem go away, and I got my answer right here.
 
I bought my 250 from fast toys a few years ago!!
Best scale I have ever used.
Very accurate, not at all touchy, and none of the static gremlins that my old PACT scale had!
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom