How 2 know if the atomizer is working good (with multimeter)

[ggero]

Hei guys! I want to meter some 901 atties to know if their real performance is good via multimeter...I read one thread from stormy in here but I cant understand what exactly we are meaning ...Where do we put the two polimeter sticks and how many Ohms is the good performance limits?

 

[vinylmason]

The red one you touch to the center hole on the threaded end of the atty,the black you touch to the threads but dont let the 2 touch each other.all of my new 901s read around 4.2 ohms

 

[ggero]

Can you tell me according to this names where the multimeter is going to touch ?

 

[vinylmason]

one to the electrical connector threaded inside,one to the nozzle & electrical connector with grommet

 

[ggero]

Thanks vinyl !!!!! Now I know what we are talking about ...My language is Greek

 

[vinylmason]

No problem ggero,Glad I could help

 

[Lisaf01]

Just so you know, a normal 901 should measure between 3.5 and 4. Some newer ones are measuring slightly higher.

A normal Joye510 used to come out at around 2.8 but the new SLB 510s seem to be around 3.5 as standard now.

 

[ggero]

So the "health" value on a 901 attie is 3.5~4 Ohm ....
From the math type V=I*R (or V/R=I) we can tell that we have a better throat kick (more A) when the R is decreasing ..so...an attie with 3.5 Ohms is better than an attie with 4 Ohms..Isnt it ?

 

[Lisaf01]

Yes, you want to up your voltage to get more vapour out of a higher resistance atty.

Defining which is better is up to the individual user really - that's why it's nice to have soooooo many options for everyone.

 

[perky]

Yes, you want to up your voltage to get more vapour out of a higher resistance atty.

Defining which is better is up to the individual user really - that's why it's nice to have soooooo many options for everyone.

The actual resistance as measured by a multimeter is not the end of the story though. The resistance probably (and I haven't measured it) goes up when hot, so what is really needed is to measure the current at the applied voltage when hot. An incandescent light bulb has a low resistance when cold (measure one and see!), if you calculate the power when run at 115AC or 230V AC using the formula (V*V)/R you usually get a value much greater than the bulb rating. So it depends on the temperature coeficient of resistance of the coil/heating element.

Anyone done this measurement?

It seems to me the ideal way of powering the atty is to provide a larger current while it heats up from cold, then reduce that current as it heats up. If the atty's had a thermocouple in it this could form part of a closed loop. Alternatively measuring the resistance (by measuring the current) might get you a close approximation to its current temperature as the first order approximation to resistance at a particular temperature is R = Ro(1 + a*T), i.e. linearly dependent on temperature.

 

[Mist_Of_Joye]

Yes I've been thinking of something similar lately, because I'm the kind who vapes heavily and whom atty rarely gets cold. And I always noticed that when the atty is cold, it vapes much better than after a while, when it becomes really hot, even with a fresh new battery.

A cold and fresh atty might even sometimes vape with a fresh 3.7V battery, better than a hot atty on 6V...At least that is what i noticed sometimes.

 

[vapn]

Mist, I believe what you are noticing is the battery's temp going up with repeated use without breaks, and therefore producing less current. When a battery is in a cold state it will put out more voltage. At least from my readings on batteries their temp has an effect on performance. The weather has taken a turn for the cold here and I am noticing a slight imporvement in battery performance.

And as for Porky's post. Lisa was refering to the new High Resistance iAtties that are for sale now. They provide the user with a much higher resistance coil that can handle 7.4v easily. They can even handle 9v as Imeo has demonstrated. I do agree with your post however and that is a very scientific way of looking at it.

Hope this clears the air a bit...

 

[Mist_Of_Joye]

Thanks Vapn...Yes it's true, a battery in a cold state puts out indeed more voltage.

 

[Stike]

Mist, I believe what you are noticing is the battery's temp going up with repeated use without breaks, and therefore producing less current. When a battery is in a cold state it will put out more voltage. At least from my readings on batteries their temp has an effect on performance. The weather has taken a turn for the cold here and I am noticing a slight imporvement in battery performance.

And as for Porky's post. Lisa was refering to the new High Resistance iAtties that are for sale now. They provide the user with a much higher resistance coil that can handle 7.4v easily. They can even handle 9v as Imeo has demonstrated. I do agree with your post however and that is a very scientific way of looking at it.

Hope this clears the air a bit...

Where can we buy these new adomizers.I just got GGT and lost 3 adomizers in the 1st night.Might of been from TW multi pack that are junk IMO.The one I'm using now is killer,so could of been cheep adomizers fron TW and can't return on 5 pack.Live and learn

 

[smokinridge]

I would love for someone to tell me where I can buy these high resistance attys for a 510, please!

 

[pt91]

Where can we buy these new adomizers.I just got GGT and lost 3 adomizers in the 1st night.Might of been from TW multi pack that are junk IMO.The one I'm using now is killer,so could of been cheep adomizers fron TW and can't return on 5 pack.Live and learn

i burnt two TW attys in less than a minute. the others are ok so far. i should sent the others back. i ordered a lot of others for 1/2 the price and hv not burned one out yet.

 

[imeothanasis]

i burnt two TW attys in less than a minute. the others are ok so far. i should sent the others back. i ordered a lot of others for 1/2 the price and hv not burned one out yet.

Sorry cherice for the deleted post but I cant let anyone make an add to my forum, especially for a "man" that makes dirtect copies and steel other people's work.

If you want further talk about this, please pm me