How To Check For Shorts On A Multimeter

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ScubaDivingPoop

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Oct 26, 2013
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I just started into this whole rba thing and i built a coil. I have a multimeter as home and i put it on the atomized (Red to post, black to threads) and it seems to stabilize at 1.0 - 1.1 and stays there. What would a short look like, would the numbers constantly change if i built a bad coil? I just want to know for future reference so i don't mess up my mods
 

Baditude

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Apr 8, 2012
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Before you add e-liquid to your RBA, you will need to pulse fire your coils to check for obvious shorts. Ideally, only the coil will glow while applying power, not the upper leg that attaches to the positive post. Each coil should glow evenly and equally. Any that do not glow or a single coil that glows is a short. Manipulate or nudge the offending coil until all glow equally. If the upper leg glows brighter than the coil, gently bend the coil towards the positive post.

The tutorial that Zen did for Provape and his ZAP was the best video that I found that showed how to make coils and to manipulate the coils to remove shorts. Also find some other videos on troubleshooting coils in my blog:

Information Resources for a New RBA User

 

DKP#

Super Member
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Nov 27, 2012
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Missouri, USA
If your meter doesn't have a "zero" , touch the probes together and note the value. Subtract this number from all ohm measurements.
Polarity doesn't matter on ohms.
Bouncing around numbers until it settles is normal.
EDIT: use the lowest ohm setting on your meter that is greater than what you expect to measure.
A short shows up as too low of ohms. may not be 0 ohms if the coil is shorted in the middle or something.
If you were expecting 1 ohm then all's well.

Just double check with ohms law. I = V / R = 4.2V / 1 ohm = 4.2 amps. Make sure your battery rating is higher.
 
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