FX120 scale drifts with new autotrickler (no autothrow)

[Deleted old_dood]

possible solution. It worked for me as I just tested. according to Adam (his words):

The intended operation of the AutoTrickler is to place your empty pan on the scale, it will wait about 1 second for the scale to internally correct for any small amount of drift, and then it will start running. Drift will never be allowed to accumulate.

If you keep placing a partial weight on the scale, and never let the scale re-zero itself, then you risk drift accumulating in the background and I recommend against this.

since I was putting a partial charge in the cup before putting it on the scale, the scale couldn't auto compensate for drift and the error was allowed to accumulate. What I just tested was putting an empty cup on the scale and adding my "pre-load" with a scoop. If, when you put an empty cup on, the scale reads more than .02g, the trickler doesn't start. then you press re-zero, the trickler starts and you add your pre-load. For some reason, I guess related to the electronics logic, the trickler does run if you put the cup on filled with a load which is 2g light. When using the autothrow, you're always putting on an empty cup. Well, there's a reason to get the autothrow now.

 

[Ccrider]

So this makes the autotrickler virtually useless without autothrow.

 

[McHaggis]

I don’t have the autothrow so I put the empty cup on the scale and once the AutoTrickler starts I drop most of the powder in with a Lee powder dip. This gets around that issue.

 

[JimSC]

The intended operation of the AutoTrickler is to place your empty pan on the scale, it will wait about 1 second for the scale to internally correct for any small amount of drift, and then it will start running. Drift will never be allowed to accumulate.

If you keep placing a partial weight on the scale, and never let the scale re-zero itself, then you risk drift accumulating in the background and I recommend against this.

what about those of us that are putting the empty pan back and still have an issue ? I place the empty pan back after adding the powder to the case and it is there a lot longer than a second while I am seating the bullet

 

[Deleted old_dood]

according to Adam, when putting an empty cup on the scale, the trickler will run if the scale reads + or - .02g. and the scale will self correct during the slight delay. If the emply cup reads .04, .06. or .08 over, the trickler will not start until you hit re-zero. But if the scale reads .1g or over, the trickler will run without making any correction.

 

[Poor Shot 65]

That isn’t what I experience .. the scale has drifted by .06 and the auto trickler will start trickling powder.

 

[Deleted old_dood]

That isn’t what I experience .. the scale has drifted by .06 and the auto trickler will start trickling powder.

I looked closely at the pics you posted. Your trickler mount doesn't look like mine. Is yours a V3? Maybe what I posted only applies to V3. You should email Adam if it is. Mine works exactly as I described.

 

[Poor Shot 65]

Its a V2 model. I will send him an email.

 

[Ccrider]

I must be the only person that throws with a Harrell’s and then places the pan on the scale to trickle up the difference.

 

[Joe Salt]

I must be the only person that throws with a Harrell’s and then places the pan on the scale to trickle up the difference.

No your not I do the same.

Joe Salt

 

[Papa Charlie]

I wanted to add to the posts regarding lab grade scales.
These, as pointed out are expensive and extremely sensitive measuring devices. That sensitivity is necessary to perform their designed task. To perform, they require clean, consistent power, protection from electric air waves and environmental impacts such as temperature variations, wind (breezes) and movement/vibrations.
Like any tool, you have to use it properly, if you don't, you can't expect it to perform. The more sensitive they are, the more this is true.
While there are other conditions that will affect performance including the equipment themselves, these are the primary items that have a major affect. There are four things that you can do to eliminate most of these:

1) Use an Uninterruptible Power Supply. These will filter out most all line interference's, eliminate voltage fluctuation and the affects of Brown Outs (drop in voltage of more than 10%), and line noise from other loads and line equipment.
2) Don't use the scale in the presents of fluorescent lights, cell phones, etc. These put out electrical air waves that can affect the scale.
3) Ensure that the air is as still as possible. HVAC systems, fans, open window, etc can have a significant affect. Shields can help, best is to remove it.
4) Stable support. A good stable heavy platform is the best, separate of any other operation. While I am not able to use it in my present location, I have a 6" thick 18x18 granite block that I have used for measuring and will eventually be used as a base to my scale. The weight provides an extremely stable platform and removes most if not all of any transferred vibration or movement.

Edit: I also use an anti static mat under my scale. This may is grounded and fitted with a monitor which will sound an alarm should even the smallest static charge build up. You don't need the monitor, but a grounded mat is a real benefit especially if you have carpet in your reloading room.

 

[Ccrider]

For what I am doing, thankfully if .06 difference in weight matters, my load is not in tune anyway. That’s roughly 6 kernels of N133.