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Stupid DNA 250 question...

Discussion in 'VV/VW APV Discussion' started by frazz, Mar 12, 2017.

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  1. frazz

    frazz Super Member Verified Member ECF Veteran

    Jan 15, 2010
    Rhode Island
    New to the DNA Chips. Accidentally stumbled into a setting I don't understand.

    In power mode, with the device 5 click locked, if I hold the + and - it asks about temp setting. What exactly does that do and why would it be useful in power mode?

    Thanks
     
  2. srg2692

    srg2692 Senior Member Verified Member

    May 5, 2016
    If you're using a kanthal coil it won't do anything. It'll only take affect if it detects a coil made of whatever TC capable wire that profile is set to. With kanthal or nichrome it'll automatically do standard power mode, so set temperature means nothing with those wires installed.
     
  3. frazz

    frazz Super Member Verified Member ECF Veteran

    Jan 15, 2010
    Rhode Island
    Why have it under power if the chip already has a TC mode? I am using unwell crown as coils in power, what if anything does it accomplish?
     
  4. srg2692

    srg2692 Senior Member Verified Member

    May 5, 2016
    I'm not sure I understand the question.

    If you're using a standard kanthal coil the chip won't attempt to regulate temperature. It'll just fire at whatever wattage you have it set to, just like any other VW mod. If you connect a TC capable coil, such as SS, nickel, or titanium and set the material on the mod to match then it will run in TC.

    The interface is different than most other chipsets so it can be a bit confusing at first.
     
  5. frazz

    frazz Super Member Verified Member ECF Veteran

    Jan 15, 2010
    Rhode Island
    Yea that's why I started with stupid question...Lol.
    Let me try again.
    I am using stainless steel coils. I have my DNA set for wattage mode. I click the lock button 5 times. It locks. I hold both + and -. It mentions changing a temp setting. I thought temp settings were irrelevant in wattage mode. I guess the setting being there and allowing me to change it from off to a value is confusing me.
     
  6. Eskie

    Eskie ECF Guru Verified Member ECF Veteran

    May 6, 2016
    NY
    The profile you're using might be set to default to temp control if it detects a temp control coil. If your profiles are straight out of the box (no editing by you, yet) change to profile 5. That will lock in watts regardless of the metal the coil is made of. The default name for profile 5 is Power ctrl.
     
  7. srg2692

    srg2692 Senior Member Verified Member

    May 5, 2016
    Ah, ok. That feature is just for convenient switching to/from TC on any preset. If your device doesn't have a power only preset you can make one in escribe. I usually make a few presets with various preheat settings and make them temperature dominant so that the temp is displayed on the main screen rather than wattage, and then make a power only profile for VW.

    Once you get the hang of escribe you'll find that you can do all sorts of neat things to make life more convenient.
     
  8. MadTemp

    MadTemp Senior Member ECF Veteran

    Dec 30, 2015
    Sorry to burst your bubble BUT I have fully functional Nichrome 80 tc on DNA 75/200 (putting wire on 250 once it's here) it's a 3 point csv, works, only one that only works as a preheat then kicks you out is the kanthal profile that is on Evolv forums. Yes I know n80 IS under the 0.000008 tcr limit but the fluke worked quite well.
     
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