Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 I often do similar builds on my atomizers, that come out with differences in the order of 0.01?, but when I swap between two similar atomizers it often doesn't detect that the atomizer is different, and stays on the previous resistance. For example right now I was vaping on a 0.41? coil, switched to a 0.39? one, and the mod remained stuck on 0.41?. This causes an unreliable TC vape experience.There's a few workarounds for that, like mounting an atomizer with a big resistance difference between the two similar ones, or removing the batteries so it forgets its setting, but they're workarounds, and I do think there should be an easy way to do that from the mod. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 Have you tried taking off the atty and firing the device 4 or 5 times (getting Check Atty message) then screwing the different atty on...? Link to comment Share on other sites More sharing options...
Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 Yes, and just tried again to be sure, this time by swapping my 0.41? device back after the 0.39?, it stays on 0.39?. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 Does it change after "refinement"? Link to comment Share on other sites More sharing options...
Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 Do you mean if I use the wrongly calibrated atomizer for a bit ? It probably would, but as far as I remember that means vaping too hot or too cool for a few minutes, which is not really a good option. I'm using SS wire, small calibration differences cause big temperature changes. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 Atty's and device must be at the same temperature for proper calibration. If I take a warm atty off and screw a different one on it may read the ohm's slightly different (0.01 or so). The device ambient temp is different than the atty. As it refines the ohms have always adjusted properly for me. I don't use SS. What you are seeing, I, think, is only being caused by ambient temp differences between device and atty and refinement corrects it. If the device is unsure of the ohm's it will ask"new/old" but if it grabs a reading then you will not be asked.Try this: let device reach room temp and the atty also.... screw atty on and check ohms. Now let device and second atty reach room temp and screw it on and check that one.My best thoughts about what you are seeing... Link to comment Share on other sites More sharing options...
dwcraig1 Posted June 24, 2016 Report Share Posted June 24, 2016 I would set up identical profiles and switch to the next profile when changing atties. (my work around) Link to comment Share on other sites More sharing options...
Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 First of all, just noticed I posted in the DNA200 section, while I'm doing my tests on a DNA75, did the test with my 0.39? & 0.41? on my DNA200 and it asked me if it was a new coil (but I already had similar issues with closer resistance values). The example I'm using for this thread might happen because of the optimization made for low TCR materials like SS they got in the DNA75 firmware.Anyway it might be better to move this to the DNA75 section, even if I think that being able to force calibration would benefit to both chipsets.dwcraig1 said:I would set up identical profiles and switch to the next profile when changing atties. (my work around)Isn't resistance not tied to a specific profile ? Or do you use resistance lock to set a resistance to a given profile ?retird said:Atty's and device must be at the same temperature for proper calibration. If I take a warm atty off and screw a different one on it may read the ohm's slightly different (0.01 or so). The device ambient temp is different than the atty. As it refines the ohms have always adjusted properly for me. I don't use SS. What you are seeing, I, think, is only being caused by ambient temp differences between device and atty and refinement corrects it. If the device is unsure of the ohm's it will ask"new/old" but if it grabs a reading then you will not be asked.I think it wouldn't read the right resistance when calibrating to a very different build between the close ones, if it were what you described.I tried to make refinement happen, and vaped for like 15 minutes my 0.41? with 0.40? displayed (previously calibrated to the 0.39? a bit before it was completely at room temperature). Refinement never happened.The problem seems to be that the difference is small enough for the mod to think it's the same coil, and refinement is a poor way to deal with such situation, if it means having a non satisfying vape, even temporarly. Link to comment Share on other sites More sharing options...
dwcraig1 Posted June 24, 2016 Report Share Posted June 24, 2016 My thoughts pertained to mounting a cold atty, for hot I would just lock the ? in the same profile if the cold resistance is real close. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 Refinement doesn't happened while vaping.... refinement occurs as the device sets idle.... at any rate you might use the work-around mentioned by dwcraig1.... SS is a touchy wire from what I read ... good luck..... Link to comment Share on other sites More sharing options...
Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 If you set it idle long enough for it to turn itself off, then it will recalibrate when restarting (if you see the boot logos), is it what you mean by refinement ?EDIT: ha my bad, apparently it recalibrates when set idle, without entering in standby mode. I didn't know that, thanks for the tip Still, not vaping is not really what I'd call a good solution to this calibration problem, being able to force it would be much better, imo. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 dwcraig1 gave you the work-around to "force it".....profiles can be set many ways.... what you are seeing is not a calibration problem but a user problem... refinement works as designed, locking resistance works as designed, and so does setting up a profile works as designed..... Link to comment Share on other sites More sharing options...
Llama Posted June 24, 2016 Author Report Share Posted June 24, 2016 I never said anything was not working as intended, I said it would be convenient to be able to quickly recalibrate. Even the fact it doesn't always detects an atomizer change is probably because the difference in resistance seemed enough for the firmware devs to assume it was the same coil, so it's like this by design.At first I didn't get what dwcraig1 ment, but after playing a bit more with profiles I understand, and I didn't know it kept locked resistance values tied to a preset (now that I think of it, I should have guessed, with the checkbox for locked resistance in profile pages in escribe) . This isn't even a workaround, but apparently a proper way to deal with the situation I described, making profiles much more usefull. Thanks for these informations.But I still think it would be nice to be able to just recalibrate quickly ^^ (and also change the preheat without using escribe, but that will be for another thread)EDIT: I rejoiced too fast, are the locked ohm values erased when the device enters in standby mode ? my 0.39? build is seen as 0.41? on all my profiles now. Link to comment Share on other sites More sharing options...
retird Posted June 24, 2016 Report Share Posted June 24, 2016 Glad you are learning more about the DNA technology....preheats can also be set in profiles.... there is a learning curve using DNA stuff so don't get discouraged.... Link to comment Share on other sites More sharing options...
stuartro Posted June 25, 2016 Report Share Posted June 25, 2016 Llama, I have profiles for each of the different atomizers (RTAs and RDAs) that I have, with names like Griffin 25, Griffin A, Griffin B, Griffin C (I have three 22mm Griffins), Tsunami, Royal Hunter, etc. When I install a new coil / set of coils in a particular RTA/RDA, I unlock resistance for the correct profile (lock device, hold fire & +), and fire briefly to get the DNA to "pick up" the resistance, and then I lock resistance in again. This way when I switch tanks or drippers I can switch based on profile name and vape on. I also have a "general" profile named Power Mode, which is the only one that is non-TC. What's so cool about profiles is that they also store the last temperature and power set for a profileâtemperature is especially important for me, as I like to vape different juices at different temperatures (hotter for custards and fruit flavours, a touch cooler for tobaccos). I almost can't imagine vaping on a non-DNA200 device now. Only thing I'd like is a few more profiles... at some point I'm going to pass 8 RTAs/RDAs. Link to comment Share on other sites More sharing options...
Llama Posted June 25, 2016 Author Report Share Posted June 25, 2016 Well it's just that I wasn't aware of this way of operating. Prior to the DNA200 I grabbed around the date I registered to this forum, my experience with resistance lock from another company's firmware was that it was ment for atomizers having resistance varying due to other factors than temperature. For example a 510 pin not doing contact very well with the mod, or not so good build quality. And when the resistance was unlocked, it was keeping reading the temperature to get a more acurate (I reckon average) value, to output more acurate results.I had been doing a profile per atomizer since the update allowing to change materials, but never ever locked the resistance, just using one of my workaround if I needed to recalibrate. In the end, I was just using any preset, adjusting on the fly, as I usually do pretty much all the time the same builds. Now with a better understanding of how this works it's not going to be the same. BTW, is the refining ment to do several resistance tests to do an average too ?Also is there a manual, wiki, or anything like that explaining all this ?retird said:preheats can also be set in profilesYes, but it's typically something that needs some playing around with values, and with its 3 parameters it could be in a menu on the mod. Link to comment Share on other sites More sharing options...
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