MikeA&P

Ok so scratch my post about case thermals. I am running windows 10 and when I use the test firmware the data is not being uploaded to the mod. I rolled back to 10-21-2015 and everything went back to to normal

I have and each time was new numbers. I ran it 5 times total. Then I called Evolv. I just tweaked a varible and now room temp modeled temp and board temp are good vs myIR temp gun and resistance is now .157 and falling. Also apparently when I went to the test firmware none of my manufacturer settings transferred to the mod. I re-entered them and it seems good.

I am 99% sure now my case thermals are off. My IR temp gun says the mod is 72and on escribe it is 75.12. These are what I am using Cctc. 470 Chtc 390 Usb ch temp. 12 14.8 Mat -20 Mat 110 I got these from Evolv

Sorry bout that my phone went dumb. Wingsfan0310 what are your case thermals?

I have not used the mod for 4 hrs now and it is reading .170 on a .15 coil. I am looking at escribe now. Resistance has changed to .173 in the pulse of refinment. Now a brand new coil reads .188. Mod resistance is .0045. Measured at .005 set to 80%. Case thermals are right from Brandon at evolv. The mod itself is reading .0033 off and it worked flawlessly on the 10-21-2015 update. This issue is happening on 2 vt200 built almost 6 months apart.

What it is doing when it goes into refinment the modeled temp and resistance would lower until it reaches the true cold resistance. What it is doing with the test firmware is that the cold resistance is climbing in refinment and modeled temp wants to stay near the board temp. Then on wake up an .15 ni200 crown coil will read .161 to .178 ohms. I have seen this on two different vt200 so far

Noticed a few things today. Bandgap has fallen from 1.037-1.045 to 1.030 to 1.042. Modeled temp is not holding like it would on 10-21-2015 update. Modeled temp is rising at the same with board temp while vaping and after refinment it will not hold steady. Escribe will not allow me to roll back to 10-21-2015. Current mod settings are the settings I got from evolv.

1300mah 3s lipo at 20c is rated for 26 amps max.

I noticed that between the last firmware and the test firmware that my crown .15 ni200 coils still read the same but on the old firmware I had to run 530f to get a warm vape but now 460f is warm and having to push 75 watts to get there. Vt200 @ .0045 mod resistance and case thermals are from evolv. Coil reads .154

Anybody else's dna 200 hitting harder after the update?

I have been keeping up with this thread today and I also have the VT200. I was having trouble using temp mode and I kept looking at the escribe device monitor and this thread thinking that my VT200 would kick the bucket too, but I did notice that the VT200 has the 510 grounded and the chassis grounded. Upon further inspection I noticed the chassis screws still had roughly 2 complete turns before being full seated. upon fully seating them all fluctuation in the atty and resistance stabilized using ni200 Herakles coils. I also put the latest firmware on it and cut the preheat down too 80w, 3.1 punch with 1 sec duration. currently running at .23 ohms cold @ 47.5w 520F. here is a screen shot of what the mod is doing. maybe it will or could help you out.