Swerved

Strange. I'll definitely be paying close attention to mine in the future but so far I've been issue-free with the exception of something I did.. On a few occasions I had to resort to a factory reset and start over.

Yeah that's kind of strange. You're not the only one I've seen with that issue... I wish I had a suggestion for you but I'm puzzled too. ***Edit: Just saw your post above... Ground screws eh? Who'd have thunk it? Glad ya got it worked out!

Haven't seen that at all with my Therion 75 ... As a matter of fact I was bored one day and checked it with a FLiR gun... The DNA75 was set for 475° at the time...

Hmm.. Ok what I would do if you haven't yet done so, I would go even lower with pre-heat, or if not lower, set the time for a smaller interval than 1 second which is default I think. With the preheat at 50w the heat flux is about 458 mw/mm2 which is enough to burn the cotton almost instantly. So you would need to set it lower, or reduce the pre-heat time, or maybe both even. Then, I would make sure your power is set at less than 30w. It will likely take less than 20w to sustain the temp after it heats up that coil. Then I would also make sure that you have the correct values in your device for that grade of stainless. If you don't have it, it is here.. https://www.dropbox.com/s/3oppmfpfkvnlqm8/DNA200-SS_316-SteamEngine.csv?dl=1. If you'd rather use TCR than the .csv file, then set your TCR around .00094 and work from there. Be sure that anytime you change it you are working with a cooled to room-temperature coil or your results will be inconsistent and unfavorable. As for why it works better with spaced coils, I couldn't tell you. I know some folks seem to have better luck in that configuration; I've been fortunate enough with tight coils that I haven't had any problems really. Hope this helps.

I don't know what is doing that in your case, but I can tell you what happened with mine... I use almost exclusively 316L with mine. The only time I had a similar problem was when it inadvertently got taken out of Temperature Dominant mode. So basically what it did was fire at whatever I had the wattage set, regardless of the temperature setting. It was basically acting as if it was in power mode and wide open.. So, enabled Temperature Dominant for that profile again, and re-wicked, checked connections, etc.. After it was cool, got the mod to ask whether the coil was new or not, then I told it yes. At that point it's worked as intended to present. Tell me more about your coil build and settings; give me an example of one of them. What gauge? What resistance? What inner diameter, etc.. What do you have the mod set at with regard to pre-heat power and and power. I don't use spaced coils so I wouldn't know much about that. I know some people have had problems with tight coils like I use, but mine seem to work fine barring some other problem like a bad connection or what have you..

What exactly is wrong with your product that you need a firmware upgrade for?

Undoubtedly they will.Funny though, because not 10 minutes after I pulled the trigger on my new DNA250 mod, I saw a vendor that had the 75C in stock. I could have gotten it instead, but then I thought I'd wait for the more powerful version to be released so I hope they do.

I'll keep at it and post any more interesting finds, I'm going to try one without any wick or juice, just wire, to see what it shows then. I've got access to a scanning electron microscope at work... May do some 'coil art' at a later date.. lol

So I was reading over the problems everyone has with SS316L and temp control. I too have noticed that with the temperature set at say, 450F it seems to be a cool and airy vape, like it's not hot enough. So I decided to check it out with my handy little FLiR gun... It seemed to be lower than the set point at first (this was @450F) but I soon realized that it the vapor will throw it off if it's in the area of the focal point... So I set it @ 475F and got close up to the coil, so the vapor wouldn't throw it off... Seemed pretty close then. Oddly enough, at 475 it's a cool vape (IMHO) and that I now see why some folks have theirs set at 500 and above. Haven't tried Ti yet or anything else.

Awesome! Was just looking for this; thanks a bunch.

Just picked up one of these. Damn fine piece of gear if I do say so myself. TC on SS316L was quirky at first but it's smooth sailing now. Well built, heavy (I like that), and the DNA75 is as advertised for me so far As far as the batteries, I find the ribbon is the key for the back one. When you install the battery try to get the ribbon up toward the positive terminal as previously mentioned, and if you get it right it comes out fairly easily. In a nutshell, shut up and give your favorite vape supply store your money. Worth every penny.