my newest sigelei 75A ,when i press power button ohm value is changing continuously

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Hawise

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Resistance can change when your coil heats up. Temperature control vaping actually uses that principle to estimate the temperature of the coil. Also, 0.03 ohms (0.76 - 0.79) is a tiny, tiny difference that will be well within the margin of error for the mod. It's nothing to worry about.
 

Ricky Vapes

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i bought sigelei 75A mod and i have 0.7 ohm value coil on my nautilus 2s when i fire it jumps 0.76 between 0.79 values why this is happening?
What kind of wire you using?

Make sure all screws are tightened if it’s a rebuildable including the pin at the bottom of the tank that sticks out past the part you screw into your mod.
 

fireinthehole15

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Dec 20, 2019
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What kind of wire you using?

Make sure all screws are tightened if it’s a rebuildable including the pin at the bottom of the tank that sticks out past the part you screw into your mod.
i think mod have problem i tried another mod no problem like this,by the way i am using kanthal 28ga and i tried with nautilus2s 0.7 ohm coil problem still same
 

Hawise

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i think mod have problem i tried another mod no problem like this,by the way i am using kanthal 28ga and i tried with nautilus2s 0.7 ohm coil problem still same

I really don't think it is a problem. If I'm understanding you properly, your .7 ohm coil is showing as .76. Then when you press fire, it jumps between .76 and .79. Is that correct?

Coils aren't entirely consistent when they're made, so it's not unusual for a coil with an official rating of 0.7 ohms to actually be 0.76 ohms. Mods aren't perfectly accurate either, so one mod might show it as .7 while another shows .76. Anything between about 0.6 to 0.8 isn't unusual and isn't usually a problem.

Then when you press fire it jumps up and down a little. Since it's kanthal, it's just a small variation you're seeing. If you were using a stainless steel coil, you might see a difference of 0.3 ohms or more.

The changes you're seeing are normal variations - as long as the vape seems normal. One other thing to mention is that a coil's resistance can increase over time. It would also be normal for a 0.7 ohm coil to creep up .1 or .2 ohms over a few weeks.

If your coil suddenly jumps to 0.95 ohms or down to 0.45, then I would think that something's going on. Right now, it sounds perfectly normal.
 

fireinthehole15

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Dec 20, 2019
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I really don't think it is a problem. If I'm understanding you properly, your .7 ohm coil is showing as .76. Then when you press fire, it jumps between .76 and .79. Is that correct?

Coils aren't entirely consistent when they're made, so it's not unusual for a coil with an official rating of 0.7 ohms to actually be 0.76 ohms. Mods aren't perfectly accurate either, so one mod might show it as .7 while another shows .76. Anything between about 0.6 to 0.8 isn't unusual and isn't usually a problem.

Then when you press fire it jumps up and down a little. Since it's kanthal, it's just a small variation you're seeing. If you were using a stainless steel coil, you might see a difference of 0.3 ohms or more.

The changes you're seeing are normal variations - as long as the vape seems normal. One other thing to mention is that a coil's resistance can increase over time. It would also be normal for a 0.7 ohm coil to creep up .1 or .2 ohms over a few weeks.

If your coil suddenly jumps to 0.95 ohms or down to 0.45, then I would think that something's going on. Right now, it sounds perfectly normal.
thank you so much for your attention,but in time maybe these jumps lots am i right?
 

Hawise

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thank you so much for your attention,but in time maybe these jumps lots am i right?

Probably not. Kanthal, the type of metal your coil is made of, only changes its resistance a little as it heats up. It should keep on changing a little (but not very much) as you go on using it. If you were using a different metal, like stainless steel, you'd see much bigger jumps, but then you should see bigger jumps with stainless steel so that wouldn't be a problem either.

If it does start changing more, that could indicate a problem and it would be good to come back and ask about it then. As it is, it's just doing what it should do, so I expect it will go on doing what it should do and you won't have any problems.

Good luck!
 
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fireinthehole15

Full Member
Dec 20, 2019
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Probably not. Kanthal, the type of metal your coil is made of, only changes its resistance a little as it heats up. It should keep on changing a little (but not very much) as you go on using it. If you were using a different metal, like stainless steel, you'd see much bigger jumps, but then you should see bigger jumps with stainless steel so that wouldn't be a problem either.

If it does start changing more, that could indicate a problem and it would be good to come back and ask about it then. As it is, it's just doing what it should do, so I expect it will go on doing what it should do and you won't have any problems.

Good luck!
thanks for your informative messages and attention a lot:)
 
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