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[Scale Subthread] Creeping

A

Al_S_Dee

Bluelighter
Joined
May 24, 2006
Messages
436
Location
Southern Cali
With settings of 1.1.2, 1.2.1, 1.3.5, 1.5.1, 1.6.1, the scale seems to never really settle down even after a long time. In fact the weight keeps creeping up even after like a 7 minute wait. The AC power is wall and no drafts in the room. Anyone know when to assume the final weight??
 
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Could it be that your electricity is bad and uneven? Are you in an old building?

I have all kinds of trouble with that scale unless I unplug almost everything in my apartment. My electricity is ancient and sort of scary. Try unplugging the major appliances --fridge, microwave, etc. That always immensely improves my VIC's performance.

Also, get one of those rubber mats for underneath the scale, it cuts down on vibrations.
 
champ said:
Could it be that your electricity is bad and uneven? Are you in an old building?

I have all kinds of trouble with that scale unless I unplug almost everything in my apartment. My electricity is ancient and sort of scary. Try unplugging the major appliances --fridge, microwave, etc. That always immensely improves my VIC's performance.

Also, get one of those rubber mats for underneath the scale, it cuts down on vibrations.
Click to expand...
thanks for this tip! I dont personally use this type of scale, but I'll 'file it away' for future reference.

thanks champ! ;)

peace and huggles,
samadhi
 
This problem is probably due to static electrecity or magnetism.

If you use latex gloves, there is possible that static electrecity can be formed.

You can wipe out any electrical charge with a metal rod.
 
My VIC-123 is stable only after 20-30 minutes of warm up. During that period I calibrate it once or twice using the supplied 1gm tare weight. Yeah, it gradually creeps up. Eventually it reaches a peak and settles. Calibrate it again, and it's good to go. Very sensitive to wind, but I guess that's why it has a glass ring and a cover.
 
Would any electromagnetic interference mess up this type of scale or potentiometer scales? I'm guessing the best way to run a scale of this type would be to use a battery with a constant and unwavering supply of power (though the vic-123 unfortunately only runs on wall power)... is this correct?
 
1.1.4; 1.3.3 seemed to work best. And this topic about this scale is specifically mentioned in the big scale thread (look at the old archives around page 11 or so).
 
No, the building is almost brand new so the power supply should be nice and stable. I am curious how one measures with a scale this precise. I read in the old Big Dandy Scale thread someone posting a procedure to put a little substance on, remove, zero again, add more substance, add, remove, zero again, etc.. for the life of me I cannot find that thread anymore.. but do the users of this scale dump more substance on the weighing tray until the weight comes up or do they use the procedure I just outlined i.e. iteratively weigh it out?
 
Created this subthread from the Big & Dandy...

drafts can make a scale creep which is why some scales come fitted with a plastic dome. If you don't have that close the doors and windows and make sure you don't make all kinds of sudden movements that make turbulence in the air. People walking by also create massive turbulence.

Though normally drafts only affect weighing in the real mg region, but I can imagine some scales are just more sensitive to this.

If you are experiencing problems, see if taking precautions against this helps if only to exclude it as a factor.

Of course this is not pointed at the OP who mentioned a draft and actually this part of the thread is quite old but the topic is a common one, hence the subthread.
 
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