Problem temperature control

[Polsk34]

Hi, i just bought a ipv4 and mutation x v4 and i have a problem with temperature control.

I do a dual coil with 11 wraps for each coil with nickel 30wa for a resistance value of 0.112 ohm.
I put my organic cotton and i calibrate the ipv4 at 350 farenheit and 30 joules. Then for testing if it works, i fire without puting liquid like mike vapes does and the ipv4 give the message dry coil so i stop firing but when i move the cotton i can see that it burned a little.
I saw on internet from some reviewers who tested temperature control with dry cotton that it should start to burn (get brown) at higher temperature.

Can anyone tell what could be the problem?

Thank you in advance and sorry for my english, i'm french.

 

[Siouxinpa]

It will burn a little. You've got a super sub ohm build in, it will get hot very quickly.

The test should be, 'did the TC notice that there was no liquid to vaporize?'

Not, 'did the cotton get singed?'

The purpose of it is to keep you from inhaling a lung full of burning cotton. Since the IPV4 noticed the coil was dry and shut down it is working properly.

 

[Polsk34]

Ok but mike vapes does the same test with the ipv4 at 420 farenheit and his cotton is lesser singed that mine at 350. Is it because he is in single coil and i am in dual?

 

[Siouxinpa]

Haven't seen the vid. What was the ohm on his build?

 

[Polsk34]

0.085 ohm

 

[Rabbit Slayer]

Ok but mike vapes does the same test with the ipv4 at 420 farenheit and his cotton is lesser singed that mine at 350. Is it because he is in single coil and i am in dual?

Go track down this Mike Vapes person and ask him....

 

[Davect06607]

Did you set your resistance to .11? By pressing both up/down buttons at same time?

 

[Polsk34]

Yes i did davect.

This mike vapes person is a famous reviewer on ecig like rip trippers rabbit slayer

 

[Rabbit Slayer]

Ah, the dude that needs to wash his hair....yeah, I don't much care for him

 

[Siouxinpa]

Personally I think it's fine. But your mileage may vary.

 

[edyle]

Ok but mike vapes does the same test with the ipv4 at 420 farenheit and his cotton is lesser singed that mine at 350. Is it because he is in single coil and i am in dual?

for one thing it's a different coil

 

[dc99]

Dave is correct, you have to set your resistance by pressing both up and down button at the same time or it will never work

 

[herb]

It will burn a little. You've got a super sub ohm build in, it will get hot very quickly.

The test should be, 'did the TC notice that there was no liquid to vaporize?'

Not, 'did the cotton get singed?'

The purpose of it is to keep you from inhaling a lung full of burning cotton. Since the IPV4 noticed the coil was dry and shut down it is working properly.

Thats just a part of it , many people like temp control because of the consistency of the vape it can provide and it allows safer vaping as many are concerned about vaping super high wattage so being able to control the temp of the coil is huge to them.

 

[Angus T Rat]

Ok but mike vapes does the same test with the ipv4 at 420 farenheit and his cotton is lesser singed that mine at 350. Is it because he is in single coil and i am in dual?

Could be but it could also be how loose or tight the wick is, in my experience, the tighter it is the more heavily it will singe the wick.

 

[Siouxinpa]

Thats just a part of it , many people like temp control because of the consistency of the vape it can provide and it allows safer vaping as many are concerned about vaping super high wattage so being able to control the temp of the coil is huge to them.

Agreed that's why most people go to TC, but the discussion was about a dry fire test.

 

[awsum140]

Given the price point that these TC mods are coming out at I would strongly suspect that high tolerances are not at the top of the QC list. Normal consumer electronics generally is built with a 10% tolerance built into it from parts tolerances so seeing a difference is nothing to be concerned with. To that mix add in the fact that the temperature curve of your wire may not exactly match the programmed temperature curve of the device and it can go further awry.

As long as the TC works, don't sweat it.

 

[herb]

Agreed that's why most people go to TC, but the discussion was about a dry fire test.

Yeah , i am a terrible offender of staying on topic , my apologies.

 

[Completely Average]

I have a silly question.

Why do a dry fire test at all? Are you just wanting to make sure the TC works? Dry firing a nickel coil is bad for the coil.

Also the temperature sample rate of the Yihi chip isn't fast enough to stop the coil from exceeding 350 degrees if the coil is dry and joules are high. It only samples the coil twice a second, so it's going to fire that first half second or so totally unrestricted.

 

[Polsk34]

Yeah i just wanted to be sure that the tc works since it's my first time using it or using a dripper at all.