FX-120I Question

[rardoin]

I installed a TrippLite LC-1200 line conditioner/surge protector on my Sartorious which cured my non-draft related drift.

https://www.amazon.com/dp/B0000512LA/?tag=accuratescom-20

 

[RampedRaptor]

I also deal with a wondering zero from time to time. I calibrate each reloading session, level, use a in line voltage regulator, etc...

I blame it on static and have not found an acceptable way to get rid of it consistently. Open to suggestions ?

 

[josh shrum]

A TrippLite, in conjunction with not taring my scale eliminated drift for me.

 

[Ron Gorski]

I looked at my notes and my pan weighed 175.60 when I started loading this spring. My load is 42gr and I keep the original charge in a sealed vial and tare my scale with that charge before loading for a match. The same scale now weighs 175.74 and that same charge weighs 43-43.2. I loaded for a match a month ago and the scale weighed 175.68 and the charge weighed 42.6. Anybody else seeing wondering weights like this? I use the same check weights and calibrate my scale before a loading session.

What is the ASTM # of your 100 G calibration weight. Since the resolution of the scale is 0.001 G, one needs a weight with a tolerance of +/- 0.00025 G or +/- 0.25 mg. This weight has an ASTM # of 1. I saw one seller of the A&D FX-120i selling an ASTM 7 to calibrate the scale. not good enough!!!! you could get by with an ASTM class 2.

 

[jsthntn247]

View attachment 1071098

View attachment 1071099

Should it be set to 3?

 

[jsthntn247]

What is the ASTM # of your 100 G calibration weight. Since the resolution of the scale is 0.001 G, one needs a weight with a tolerance of +/- 0.00025 G or +/- 0.25 mg. This weight has an ASTM # of 1. I saw one seller of the A&D FX-120i selling an ASTM 7 to calibrate the scale. not good enough!!!! you could get by with an ASTM class 2.

I'm sure they aren't good enough, but I use the ones that came with my chargemaster. I just noticed an error, my charge now weighs 42.1-42.12, a tenth, not a grain difference from the original 42.0.

 

[rardoin]

Brad, I hope your worrying about this because you are loading for the 4-state match at Panola in a few weeks.....

 

[jsthntn247]

Brad, I hope your worrying about this because you are loading for the 4-state match at Panola in a few weeks.....

Looking for an excuse for my sucky shooting all year, lol.

 

[Twoboxer]

Never had this problems until I started using the Auto throw and trickler. My scale never really would drift much at all until this year either. Now it constantly drifts when loading. I will try resetting the factory settings then reloading the auto instructions and see if that helps. I use a metal pan "shot glass" and wipe it down with denatured alcohol frequently, it's weight shouldn't be changing.

New info! Were it me, I'd . . .

Start a new loading session and verify the symptoms remain. Then remove the AutoStuff completely, reset the scale to factory default, and do a few more rounds "by hand".

Whether the symptoms disappear or remain yoiu may have a clue as to where (scale or AutoStuff) to go next.

 

[Ron Gorski]

I'm sure they aren't good enough, but I use the ones that came with my chargemaster. I just noticed an error, my charge now weighs 42.1-42.12, a tenth, not a grain difference from the original 42.0.

You are right. Not good enough. You are trying to calibrate a 0.02 grain scale with a weight designed for 0.1 grain.
As for your current problem, Keep fluorescent light away from your scale. Use a ferrite filter on your power cord. If your in coming power to your house is not stable you will have problems. Also, make sure the platform your scale is set on is stable. Keep the powder pan in the middle of the platen.
Your cell phone can also induce interference to the scale. don't keep it near the scale.

 

[Raythemanroe]

I fire mine up 30 min before calibration, then I go to town. You need to make sure you have not changed anything in your reloading area like furnace blowing a draft.. I also plug mine into a Triplite

Ray

 

[KenOath]

I also deal with a wondering zero from time to time. I calibrate each reloading session, level, use a in line voltage regulator, etc...

I blame it on static and have not found an acceptable way to get rid of it consistently. Open to suggestions ?

I purchased a static mat with earth clamp from eBay, everything sits on the mat.