Coil resistance keeps changing???

[Vykos]

Hi all. I am currently running a Tesla VV/VW mod with an 18650 battery and a nimbus clone with dual micro/nano coils and cotton wick. I dont understand why ill hold the button on my tesla to check the resistance of my coil and one second it'll be 1.8 ohm then a minute later it will show 2.4 ohm then maybe 2.8 or back down. Has anyone else had this issue? I don't get it how it can keep changing. I haven't taken the cap off or moved anything. any suggestions?

 

[Jeffk123]

I have had a similar problem on my steam turbine never could figure out why that coils resistance kept hopping around. Still bugs me a bit lol

 

[Vykos]

i wanted to know if its my device or my crappy self made self taught coils... im moving to a mech mod and i want to be able to know what my coils are at before vaping on it.... urgh.

 

[Fortyniene]

Usualy this means you have a short and/or you have one or both ends of your coil not tightened down enough.

 

[Vykos]

hmm.. that could be fully possible, but im worried about overtightening my nimbus clone... i need someone to teach me! lol anyone in NC?

 

[1buda]

That's very interesting I have 1.9 and back to 2.4 is which my coils are built at, using a Vamo 3.

 

[oj1228]

I would have to go with loose ends. Try tightening it down again and see what readings you get.

 

[dripdaze]

I would have to go with loose ends. Try tightening it down again and see what readings you get.

Yep. The resistance of the wire is not changing. A non reliable connection is the obvious answer. Try tightening down the screws after dry firing a coil a couple of times.

 

[Vykos]

just tightened... center screw was a little loose, it was 1.5 first, now says 2.5, then waited a sec then 2.8..... now 3.0....... now 3.2.... ...?? fire for a second, now 1.3..... so confused.

 

[Vappers]

Make sure your coils arent close to your posts. Use a pair of tweesers to move them farther away. The coils exxpand when they heat up and electricity chooses the path of least resistance. So if your coils are close enough to the posts but not touching, then when you fire the coil expands and makes a breif contact with the post- now you have less of a resistance.

All in all, try pulling them farther away from the posts.

 

[Maurice Pudlo]

Coils change resistance with temperature and length, assuming these are stable you can't exactly make a wire change resistance.

Look for a coil or leg touching a ground, or a broken coil or wire section if your using wound kanthal.

Maurice

 

[The Ocelot]

I have a different take on this, but I don't have a Tesla so I don't know if this is one of it's features. Some mods "fire under load," which means when you press to check the resistance the device fires to get a reading. A number of mine will flash 1.8Ω and then give a second number in line with what I expected it do be. Occasionally the second reading will fluctuate a little bit, like 2.5Ω - 2.7Ω, but if you continue to hold the button it will settle on a number. If you've had the same topper on the device for awhile, it usually doesn't flash the low baseline number, but it might.

 

[oj1228]

Test the nimbus on an ohm meter, if its not the RDA then something is wrong with the tesla. You might have a loose part somewhere inside of that.

 

[Vykos]

Test the nimbus on an ohm meter, if its not the RDA then something is wrong with the tesla. You might have a loose part somewhere inside of that.

thats what i was thinking, i dont currently own an ohm meter, was trying to avoid buying one and just using the tesla to test my resistance... guess ill have to make that order...

 

[Mattpelt30]

I had the same problem using an igo-w and what I found was the screws needed a little turn, and when I would drip and put the top cap back on it was pulling the wic which was pulling my coil a little, after I figured that out I was able to correct it

 

[Vykos]

so what i think the issue was is that i was using 32ga kanthal and it was having an issue keeping constant contact.

 

[edyle]

If it's higher than what its supposed to be then its connection problems; maybe on the posts.

If it is lower that what its supposed to be then it's shorts, possibly between wrapps of with the deck or with the top cap.