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retird

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Reply with quote  #16 
All I can say from my experience is that "tweaking" the temp, watts, preheat, punch, and duration for the best vape is all configurable.  Configure it to the levels you require. Battery sag also plays a more pronounced effect into the soup with a single battery device.  Hang in there and you will get it like you want it....  [thumb]
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Wayneo

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Reply with quote  #17 
I don't think it's battery sag in this case. Your mod is working as designed. When you have your punch set at 11, the preheat works until you're within 10F of your set temperature and then stops. Yours is set at 5. So the 'preheat' cuts out way before that. Increase your punch to 11 and you'll see. 

Then, watch what is actually required to fire that coil and adjust lower if you wish, or let the board do it for ya.

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inteks

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Reply with quote  #18 
Quote:
Originally Posted by Wayneo
...the preheat works until you're within 10F of your set temperature and then stops...


Maybe thats the problem. 10F and 10C are not the same. If perheat stops at 10Celsius before temp its to low.
I tryed with punch 11 but it still stops perheat to early.
Wayneo

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Reply with quote  #19 
@inteks "...10F and 10C are not the same" gotcha. Actually there's no temp monitor at all, and it doesn't matter F or C. What we're really talking is coil resistance change (to prove TC, and not drop out), then resistance value based on the wire profile/curve/TCR value (that matches what we would call a set temperature).

The mod is trying to get to your 'set' temp, without going over. As it's ramping up (on it's way to 75) and watching that coil resistance value change, the mod knows what power it needs to hit and maintain the desired/required coil resistance (basically your temp), so it'll drop power to try not go over, then blip that power back up to hit super close temp, then another drop .... down the power required to maintain the set temp. 

Some will notice the 'Karloz spike' usually on the first vape of a cold coil somewhere in the area of 2 to 5C.

Can you do us 2 more screen shots, of the profile settings like you did before, along with a device monitor shot. (I personally would use 2 different profiles setup, independantly to make testing quicker, then an easier change between the two)

Take a preliminary vape to warm the coil.
screen shot 1. Preheat set 75, Punch 0 or 1.

Take a preliminary vape to warm the coil.
screen shot 2. Preheat set 75, Punch at 11.

PS. IIRC you mentioned the coil was somewhere around ~.2 ohms. Can you describe it for us. Is it 1 or 2 coils? Is it a thin wire, or claptionized coil etc.? Spaced?



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Wayneo

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Reply with quote  #20 
Just did this to match the text above. That red line is power, notice the ramp, then the blip as I described. See how the green (temp) line matches with the blue straight resistance line. 
Bottom shows in seconds.

power and resistance TC.png 


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dwcraig1

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Reply with quote  #21 
Karloz spike.......LOL
Gone but not forgotten

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Wayneo

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Reply with quote  #22 
Forever burned into my memory. And it was due to Karloz that I 'sainted' VB for his calmness throughout the entire ordeal. 
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inteks

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Reply with quote  #23 
thx for explanation. with the right settings it works "nerarly" as expected [wink]
but i still think that power drops to early. could get a bit closer to configured temp!

in the srceens i use a dual nife48 coil 0.32mm 6 wraps 3mm 0.13Ohm

but the preheat is more importent with claptons....

punch1.PNG  punch11.PNG   

giz_60

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Reply with quote  #24 
Try raising your 'Power' setting higher (in your profile)...looks like 42 watts in not quite bringing it up to temp...I set mine at 75 watts & let the board do its job...
Wayneo

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Reply with quote  #25 
I agree with @giz_60. I set mine at 75 watts & let the board do its job...       After you see what's actually required, you can, if you wish, go back and lower the watts down to steady state TC vaping. Using my pic, it's just under 30 watts, so I'd put that somewhere around 40 for my pic.

You should not lock ohms for your coil either, so the 'refinement' magic can work.

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inteks

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Reply with quote  #26 
thats an other prob i have with my dna. if i dont lock ohm and im vaping outside (its cold) the chip goes far too low with detected ohm value and i have to raise the temp up to 300°C (max) and it still not hot enough.
normally i let it cool down at room temp check resistens and lock it.  
Wayneo

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Reply with quote  #27 
Quote:
Originally Posted by inteks
..... if i dont lock ohm and im vaping outside (its cold) .....  
Yeah, I do that occasionally (Canada, eh.) 

So are you satisfied with your TC settings now? 
How many different 'profiles' do you use, or will use?

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