SS 316L and Temp Control

[kingdal]

Hi ECF, I'm not new to rebuilding but I am new to the DNA200 and SS wire. I started playing with it yesterday, built a dual 12 wrap 316L, 2.5mm ID, .38 ohms in an rda and running it at 450F and 35 watts. I'm having 2 problems with it. First, within a second or two of hitting the button, the Temperature Protection message comes on. Second, the vape itself is really cool. I played with increasing the temp but its not helping with the Temp Protect kicking in.

Can anyone tell me what I'm missing? Thanks!

 

[Petabread]

Hi ECF, I'm not new to rebuilding but I am new to the DNA200 and SS wire. I started playing with it yesterday, built a dual 12 wrap 316L, 2.5mm ID, .38 ohms in an rda and running it at 450F and 35 watts. I'm having 2 problems with it. First, within a second or two of hitting the button, the Temperature Protection message comes on. Second, the vape itself is really cool. I played with increasing the temp but its not helping with the Temp Protect kicking in.

Can anyone tell me what I'm missing? Thanks!

Have you checked your "Mod Resistance"? What mod is it? Have you configured the TCR wire settings for 316L (0.00092)? Check your leads and make sure they are very snug.

The most important factor to get an accurate TC vape on a DNA device is ensuring your Mod Resistance is being taken into account with the chip. If it's not, your build's resistance will be off, throwing your vape off.

Definitely sounds like a connection issue tho (wire leads not being snug) or you don't have the right TCR set up thru Escribe.

The only other thing I can think of is, the RDA you're using isn't built well enough for TC (believe it or not, not every RDA/RTA works well with TC.) You can check that in Escribe by going to "Atomizer Analyzer" (bottom left hand side under, if I recall correctly, "General"). In Atty Analyzer, the resistance should be relatively stable. If it's jumping all over the place, there's a problem.

Edit: also, something else I would suggest, is to do spaced builds with 316L. It just works better, as much as I hate to admit it (and hate to make them, as I don't think they look as attractive lol).

 

[RandyF]

I don't know how much experience you have with TC in general, but I would suggest starting with a single coil setup, dial that in, then move to dual coils. Temp control is finicky enough with one coil, trying to balance 2 coils using TC can be quite challenging. TC is much, much less forgiving than using kanthal in standard wattage mode.

 

[Wingsfan0310]

I have quite a few DNA200 mods and I'll be happy to share my experiences with you. SS316 is basically at the very low end of what our mods can accurately TC. I found it to be on the finicky side because of that reason. Mine would stay in TC but the graph was pretty choppy (it's just because the TCR is so low and the mod really has to work to keep it there - smaller the TCR the less resistance change, harder it is for the mod). I switched over to SS430 because it has ~50% higher TCR than SS316. My TC graphs are smooth and I've never looked back. Not saying you can't use SS316, it's just touchy in my experience.

TC graph with SS430 and Preheat off (Red line is the temperature)

TC graph with SS430 and Preheat on (watts at 30, preheat at 60 for 1 second with punch at 5)

TCR Chart

Cheers,
Steve

 

[rice721]

Hi ECF, I'm not new to rebuilding but I am new to the DNA200 and SS wire. I started playing with it yesterday, built a dual 12 wrap 316L, 2.5mm ID, .38 ohms in an RDA and running it at 450F and 35 watts. I'm having 2 problems with it. First, within a second or two of hitting the button, the Temperature Protection message comes on. Second, the vape itself is really cool. I played with increasing the temp but its not helping with the Temp Protect kicking in.

Can anyone tell me what I'm missing? Thanks!

Did you lock the resistance of the coil at room temperature (before firing)? Usually this helps a ton.

Also, check to make sure the wire material is SS316L as theres both an SS316 and SS316L, I'm sure you're aware of this already but I'm simply stating an obvious mistake that I make sometimes

 

[KenD]

Did you lock the resistance of the coil at room temperature (before firing)? Usually this helps a ton.

Also, check to make sure the wire material is SS316L as theres both an SS316 and SS316L, I'm sure you're aware of this already but I'm simply stating an obvious mistake that I make sometimes

Evolv actually recommends not locking the resistance unless there's a problem. I've found this to be the best practice with both DNA and joyetech mods. Also, the tcr of 316 and 316l is pretty much identical.

Sent from my M7_PLUS using Tapatalk

 

[rice721]

Evolv actually recommends not locking the resistance unless there's a problem. I've found this to be the best practice with both DNA and joyetech mods. Also, the tcr of 316 and 316l is pretty much identical.

Sent from my M7_PLUS using Tapatalk

Didn't know that. Is there a reason for not locking the resistance?

 

[KenD]

Didn't know that. Is there a reason for not locking the resistance?

The DNA chips do refinement. They read and re-read the cold resistance of the coil to achieve maximum accuracy. That's good, but may become a problem if the coil is unstable.

Sent from my M7_PLUS using Tapatalk

 

[kingdal]

Thanks for all the feedback! Its really given me some things to look into.

So far, I've double checked the Atomizer analyzer (ohms stable, does that mean the connection of the wire is ok?) and TCR for SS on eScribe. I have yet to check the actual connection of wire to rda, will do that when I get home.

What a mystery Temp Control is. Just to experiment, I built 2 attys last night with Titanium wire, a single coil 10 wrap on a Maker RDA and a dual coil 10 wrap on a Hobo, both 2.5 ID, both contact coils. Tried them this morning and the single coil is giving me a Temp Protected message right off the batt (exactly like my SS build) while the dual coil is going great. Settings on the mod are identical. So instead of finding a solution, this has confused me even more. WTH accounts for the difference so that one build works and the other doesn't?

 

[forkie]

I have the same prob with TCR but with joytech evic mini with subtank mini tank.
Had present to SS316L M1 0092 M2 0088 M3 0105 using 26ag SS316L 3mm dia 6 wraps at .30 Ohms
Locked resistance at room temp at .30 and managed like 5-10mins of vaping.
Cloud productions are ok but not much of a warm vape, very mild IMO and got pretty hot at tip usually.
Next session trying to fire up with big a prob where Temp protection keeps kicking in and its really frustrating.
Thinking if i need to change to a better mod with good TCR.

 

[chia]

hi.. just got myself a RX200s, excited about doing TC in SS316L. tried at 2.5mm id, 26g at about 0.5 ohms.. but cant seems to make it work.. keeps getting into temp protect at 420 - 520F. impossible to vape :_ tried adjusting the TCR to 92 still the same result.
any ideas guys?

thanx

 

[forkie]

hi.. just got myself a RX200s, excited about doing TC in SS316L. tried at 2.5mm id, 26g at about 0.5 ohms.. but cant seems to make it work.. keeps getting into temp protect at 420 - 520F. impossible to vape :_ tried adjusting the TCR to 92 still the same result.
any ideas guys?

thanx

I kinda fixed my prob. My Evic mini TCR resistance range keep fluctuating between 0.34 ~ 0.38.
I locked it at 0.35 and currently quite ok. Only prob when I refill the juice the resistance will read 0.32 and later will be a prob keep temp protect over and over again.
Currently set at TCR 0088 450F SS316L 3mm 6wraps 26ag resistance locked at 0.35ohms at 30W.
Your SS coil seems to be on the high side but I read some other are able to set it. I prefer to have my SS around 0.3 which is on the safe side.

 

[GeorgeS]

The higher the base resistance of the coil, the more accurate the TC can be. The upper resistance limitation is usually defined by the chip in the mod. I believe modern JoyTech chips can successfully TC coils up to 1.5 ohms.

 

[chia]

I kinda fixed my prob. My Evic mini TCR resistance range keep fluctuating between 0.34 ~ 0.38.
I locked it at 0.35 and currently quite ok. Only prob when I refill the juice the resistance will read 0.32 and later will be a prob keep temp protect over and over again.
Currently set at TCR 0088 450F SS316L 3mm 6wraps 26ag resistance locked at 0.35ohms at 30W.
Your SS coil seems to be on the high side but I read some other are able to set it. I prefer to have my SS around 0.3 which is on the safe side.

hey thanx.. will try it out..

 

[chia]

Hey it works! Set the TCR at 88 and SS316L vapes fine
Thanx guys

 

[chia]

an update..
TCR 88 SS316L - works on some rta only (for me at least..)
works fine on E-phoenix Hurricane/AmerPoint Vectar
not work on KayFun mini/KayFun 5 .. get a buzzing sound from mod.
could be the way the rta are builded?
and works for me with the Q-class only too.. Wismec does not work with the same setting(TCR88)