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DNA 40 Temp settings and Watt settings

Discussion in 'Temperature Control board Talk' started by -V-, Dec 12, 2014.

  1. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    Yep, that's the one for me...
    Just been having a good nice vape before bed and it's hitting just as my 1.3 kanthel coil at 16 W would hit..
    I've found my build.........
     
  2. zougou

    zougou Well-Known Member

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    From where are you guys getting these temp controlled mods--the Hana DNA 40's on Fasttech don't have this feature. Are these (gasp) original? Dare I ask how much they cost?
     
  3. Siam Diesel
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    Siam Diesel Nauti Moderator Staff Member

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    As I understand it, temperature control limits the coil temp so that the juice doesn't overheat (which could lead to ingesting nasty chemicals) and to avoid burning or charring of the wicking material (ditto and also tastes bad). I tried to find a temperature guide for different wicking materials but drew a blank. I did find this thread on ECF (DNA 40 Temp Control Setups) and it seems that you're in the right ballpark, V. I think that ultimately, the 'best' temperature depends on your wicking material and the composition of the juice.
     
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  4. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    Getting just the original boards and putting them in clone mods for me.

    I know there are a few guys on here with original DNA 40 mods too




    Sent from my VS rDNA 30
     
  5. Siam Diesel
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    Siam Diesel Nauti Moderator Staff Member

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  6. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    The thing is, we don't vape with dry cotton :wink:
    I've been chatting with a few guys on the DNA 40 FB page, the above is correct with 'dry' cotton, yet say they said, we don't vape dry cotton, once that cotton has had juice on it that's that, it will never be dry again in respect...even when you vape your tank or dripper empty, the cotton isn't 'dry' so to speak so that charging won't happen.

    You will know if your tank or dripper is out of juice as the vapour will decrease to a whisper thus knowing it's time to fill up your tank or add juice to your dripper...common sense..
     
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  7. Siam Diesel
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    Siam Diesel Nauti Moderator Staff Member

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    Absolutely agree...it's safe to exceed the 'dry' charring temp of the wicking material by some margin since it's cooled by the juice moving through it. I just think that you need to be careful when doing this or you could possibly exceed the 'wet' charring temp of the wicking material (i.e., the juice isn't sufficient to keep the wicking material cool enough to prevent charring) and you could get a burnt hit...just saying...YMMV

    Feels like it'll take a little experimentation to find the sweet spot...fortunately, the charring temp of rayon is higher than that of cotton by over 100 F.
     
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  8. -V-
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    -V- Thread Starter Administrator Staff Member

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    Good job I use rayon then :wink:

    What I need to work out is what ohm coil do I need to get lower temps..
    At 0.17 ohms I can't vape at under 480 F at 17 to 18W without it being very weak on vapour and hitting the temp max limit..
    Need to get my head around the above....
    If i could vape at around 410 F at 15 or 16W without it hitting the temp limit I'd be happy....
     
  9. Siam Diesel
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    Siam Diesel Nauti Moderator Staff Member

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  10. fruit-lover
    Cheerful

    fruit-lover Well-Known Member

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    Lucky you. I just got an email,saying mine has been delayed!
    Aaarrrggghhhh!!!!!
     
  11. Siam Diesel
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    Siam Diesel Nauti Moderator Staff Member

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  12. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    Just been monitoring this.

    Once the tank gets nearly out of juice the temperature throttles right down along with the wattage, so example even though I have my temp set to 490 F as the tank is nearly out of juice the temp had throated right down to around 400 F along with the watts also going right down, as it uses real time monitoring of the wattage too as in it won't give you the wattage set if it can't actually give that through the temp settings,,,

    i am very sure if the juice was totally out that would be even lower, thus yet again as per i said it wouldn't char the wick or get a burnt/dry hit...hence this new innovation by Evolv with this temperature sensing board...
     
  13. ryanmacl

    ryanmacl Well-Known Member

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    I'm here, sorry been super busy lately. I have been playing around quite a bit with my VS rDNA-40 and both the Kayfun and some drippers with nickel.

    With the drippers its doing pretty well, I can fire at 40 watts without hitting temp on a single .19 ohm coil. Tons of vapor, great stuff. I'm using it mainly on my Trident for no reason in particular. I can vape until the wick is completely dry with no issues, Rayon at 400F FYI.

    With the Kayfun, not as much luck. Temp protection is kicking in much much sooner, so its limiting my vape to around 8 watts. Not terrible for me since I normally vape at 8.4, but still a bit frustrating. It's only my second coil on there though, so I might figure out something better.

    I'm leaving the wattage set to 40 and adjusting with the temp and airflow mainly, more for test purposes. One neat thing, particularly on the Kayfun, is that if you take a harder puff you get more vapor rather than less, which I think is quite nice. I think wicking is even more important when just using TC as well, and I know that's the main issue with my Kayfun right now. The rayon is keeping the juice flowing, but its still holding the heat too much, I think I have to mess with the density.
     
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  14. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    For me i have just done my new build with 28 gauge, around 9 wraps on a toothpick, came out at 0.13 ohms.
    I have my temp set at 440 F and watts at 17 W, it is maxing out the temp on a vape around 425 which is perfect as it don't want to be hitting 440 F otherwise it will hit temp protection, and the vapour production is great and so is the flavour.

    Still lots to play with but i am starting to get it more and more...
     
  15. -V-
    Cool

    -V- Thread Starter Administrator Staff Member

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    Lastest build tonight...
    Twisted 30 gauge
    I cut off a length of 30 gauge, then folded it in half, and hand twisted it tight.
    This made it stronger to build with, better to make a connection on the Rose, and also i decided to try less wraps.

    I did 5 wraps around my toothpick
    That came out to 0.08 ohms
    Then set the Temp to 420F and the watts to 20 W.
    It maxes out at around 380F and delivers the full 20W
    A nice clean vape indeed...
    Happy at this latest build
    Note to self, must start taking pictures of my actual coil.....lol..

    Screen Shot 2557-12-17 at 10.17.51 PM.png

    My hand twisted coil...
    twist.JPG
     
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