Strangeness with scale

[ChrisMo68]

Scale that I got with the Hornady LnL classic kit, will not zero with or with pan. Keeps bouncing around. Have tried multiple different surfaces. Suggestions??//cloud.tapatalk.com/s/5a55747a47cda/20180109_200227.mp4

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[Vaquero]

Florescent lights?
I hear they interfere with electronic scales.
Only issue I've had with beam type was a fan blowing across the bench.

 

[robertc1024]

I know mine's really picky about vibration. Any chance of that? Washing machine spinning, etc.

 

[ChrisMo68]

Florescent lights?
I hear they interfere with electronic scales.
Only issue I've had with beam type was a fan blowing across the bench.

Nope, no cfl's here. Oh yeah, I made sure the heater wasn't turned on as well.

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[ChrisMo68]

I know mine's really picky about vibration. Any chance of that? Washing machine spinning, etc.

Negative, tried on dining table, work bench, even put directly on concrete patio just to rule that out.

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[Vaquero]

Fresh batteries?
And I'm fresh out of ideas.

 

[ChrisMo68]

I guess I'll have to breakdown and call Hornady. Anyone gave any experience with them?

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[Rusty Gun]

Interesting because I have a high dollar Dillon electronic scale and was getting strange readings.. same powder charge will get different weight by .2 grains some times. I have the Scale on a separate bench so there is no vibrations and there are no moving air or cfl lights anywhere near. Started using a $20 electronic scale to check the $150 dollar Dillon. Still don’t know why this happens sometimes.

I am going to talk to Dillon and see if they have any ideas. I read someplace that if these electronic scale get to much weight on the scale surface it will damage them. Might have happene during packing of shipping?.

 

[ChrisMo68]

Interesting because I have a high dollar Dillon electronic scale and was getting strange readings.. same powder charge will get different weight by .2 grains some times. I have the Scale on a separate bench so there is no vibrations and there are no moving air or cfl lights anywhere near. Started using a $20 electronic scale to check the $150 dollar Dillon. Still don’t know why this happens sometimes.

I am going to talk to Dillon and see if they have any ideas. I read someplace that if these electronic scale get to much weight on the scale surface it will damage them. Might have happene during packing of shipping?.

Another possibility, but I don't think so. The scale came in it's own box inside the main box and the scale itself has a built in hard cover...

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[TxStetson]

I have that exact scale and when it starts acting up, I run the calibration cycle. If it can’t pass it’s calibration test it tells you.

 

[Charlie]

Good luck. I bought a nice (name brand but can't think of the name of it) scale and had readings all over the place. Called them and they said not to plug it in, use batteries only! Basically I said WTF, I'm in my Man Cave 300 ft. from the nearest transformer with no AC going and no fans going! Got nothing bus BS from them. I'll check the manufacturer (can't think of it right now). I wasn't pleased with their response (they didn't give a shit!). It finally settled down but I damn sure wouldn't buy another of their brand just because of their attitude!


PACT Scale is doing OK but I definitely would not recommend them for helpful customer service!

 

[baboon]

You don't have an A/C heating duct blowing on it do you?

 

[Charlie]

Nope. No ceiling fans, AC, heater, etc.

 

[ChrisMo68]

Update.

Replaced batteries and recalibrated the scale, again, and now it seems to be holding zero.

Thanks for everyone's input!

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[TheDan]

All of these consumer grade electronic scales float a bit. When such a tiny amount of difference like a grain or two can have an impact, it's best to re-zero the scale every 5-10 measurements.

 

[Deavis]

You may have noise on your power line and combined with a cheap DC converter, you get fluctuations on the scale in operation. That uis why going to batteries, a pristine(r) DC power source can help.

A few things you can try if you want to use it plugged in, get a better DC converter, put a low pass filter on the line, put some cap into the DC power plane, and leave the scale turned on, all the time.

Otoh, I run RCBS scales on the same circuits I've got loaders and processors running in under a lot of fluorescent and I get zero bounce unless the processor is kicking out fatties. I've run all the brands, only charge masters in the shop now.



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[Younggun]

I've got an Auto Charge the will read correctly with a verified mass set. It does get off by about .3gr or so with a 20gram mass.

It refuses to complete a calibration procedure and almost always drops charges about 1.5gr over while claiming it is correct. Bastard will even read 40.1 after dispensing a charge, then drop back to 40 and beep that it's all good.

I now set it .2gr low and trickle up on a beam scale. I've always been more comfortable with them anyways and use the mass set to check accuracy as near as possible above and below the charge I intend to dispense. Makes no sense as I can put a known weight on it and it will read accurately. If I were buying new I'd got with a chargemaster based on pretty much everything I've read comparing them, but I got this one used and it speeds up my process as is so it will stay for a while.

 

[TheDan]

I've got an Auto Charge the will read correctly with a verified mass set. It does get off by about .3gr or so with a 20gram mass.

It refuses to complete a calibration procedure and almost always drops charges about 1.5gr over while claiming it is correct. Bastard will even read 40.1 after dispensing a charge, then drop back to 40 and beep that it's all good.

I now set it .2gr low and trickle up on a beam scale. I've always been more comfortable with them anyways and use the mass set to check accuracy as near as possible above and below the charge I intend to dispense. Makes no sense as I can put a known weight on it and it will read accurately. If I were buying new I'd got with a chargemaster based on pretty much everything I've read comparing them, but I got this one used and it speeds up my process as is so it will stay for a while.

You can connect a trigger to a beam scale to stop an auto dispenser once it balances at your set weight. That would take the hassle out of dealing with these consumer grade load cells and cheap electronics.

 

[avvidclif]

Just remember when looking at the accuracy of the commercial scales that 1 gram = 15.4324 grains. Plus/Minus .1 Gram accuracy is Plus/Minus 1.5 Grains. Too coarse for precision reloading. When working on a load I move in .5 grain steps and down to .3 to zero in. Biggest reason I don't own a RCBS Chargemaster from what I have been told. YMMV

 

[Younggun]

Just remember when looking at the accuracy of the commercial scales that 1 gram = 15.4324 grains. Plus/Minus .1 Gram accuracy is Plus/Minus 1.5 Grains. Too coarse for precision reloading. When working on a load I move in .5 grain steps and down to .3 to zero in. Biggest reason I don't own a RCBS Chargemaster from what I have been told. YMMV

I don't know of any reloading scales that rate accuracy in grams. All of mine rate at +/- 1gr, and typically read much more accurately than that unless I'm breathing on them or something. The Autocharge is typically within .1gr on a ~40gr charge, based on placing .2g, .5g, 1g, 2g, 5g, 10g, and 20g masses on the scale which have been checked for their accuracy. I convert the weights to grains and check the scale that way because the calibration function isn't working. although at 20g (308.64717gr) it reads about .3gr heavy. I suspect that the accuracy rating is given at the scales maximum rated weight. Not bad though for a scale I can't calibrate.