giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Hey guys...have noticed a few times that I could feel the pulsing of the device & temp rising & falling. Was finally able to catch it on Device Monitor. Seemed like every time I tried before, it would clear up. This is on a Therion 166, 250 chip, SC Aromamizer, dual coil, 24g, 316L, about 6 or 7 wraps & clocking in at .09 ohms. In the screenshots attached, you can see the fluctuation when at 350F, but when I cranked it up to 375F, the fluctuation stopped. The third screenshot shows when I cranked it up to 375F. Every thing bounced around with it except for the cold & live ohms. Atomizer analyzer showing stable build. Checked all connections, etc... Any ideas?Edit...It has happened on different atty's as well, not just this one Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 24, 2017 Report Share Posted January 24, 2017 you appear to be hitting your "cell soft cutoff" value. that is the reason for cutting in and out of the vape. cell 1 takes a dive and cuts your vape (safety feature to keep all cells balanced and draining evenly when fired). what is the value you have set for the cutoff voltage? too high, and this is the behavior you can expect. if you're using 18650's, i would try 2.85v. Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Cell cut off is set at 2.91...attached screen shot of mod settings.Changed out with fresh batteries...screen shot of device monitor after battery change out Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 24, 2017 Report Share Posted January 24, 2017 you have your kanthal limit set to 100w. but you have your set wattage at 167? why? what is lowest voltage of cell when the fire button is first pressed? seems your cells are bottoming out. put the curve at the lowest point in cell1/2's "valley" in device monitor and report back the lowest volatge seen. Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Not sure about the Kanthal limit setting...never use power mode except to burn in coils...always use TC. Here are a couple of screen shots showing 2 different fire button presses but in the same frame... Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Ok...haven't changed any settings & now it seems to be back to normal...this is about how this seems to happen. This is longest it has acted like this, was never able to get screen shots before. Here is a new screenshot ... Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 24, 2017 Report Share Posted January 24, 2017 giz_60 said:Not sure about the Kanthal limit setting...never use power mode except to burn in coils...always use TC. Here are a couple of screen shots showing 2 different fire button presses but in the same frame... what i meant was, when device acts up, move the cursor to see the lowest point of any of the 2 cells. your earlier screenshots showed some heavy voltage sag on cell 2. you need to measure the voltage when the device isn't working properly.i thought the kanthal limit carried carried over to TC, it apparently doesn't. Link to comment Share on other sites More sharing options...
Wayneo Posted January 24, 2017 Report Share Posted January 24, 2017 @giz_60 Did you change your cell soft cutoff as suggested beforehand? Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 ChunkyButt200...those 2 screenshots are of the sag when firing...2 different fires but they fit on the same screen so took 2 screenshots so that I could move the marker from one fire point to the other...Wayneo...haven't changed anything yet...but now the device is firing normally again... Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Here is new screenshot...10 sec. puff using the puff function in Device Monitor...not even touching the device & everything is looking normal again...haven't changed any settings... Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 On the left side of this screenshot is the previous 10 sec. puff using device monitor & on the right side is me pressing the fire button Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 Ok...Cell soft cutoff set at 2.85 now.... and uploaded to device... Link to comment Share on other sites More sharing options...
retird Posted January 24, 2017 Report Share Posted January 24, 2017 I don't think you said but are your coils contact or spaced? Single wire, clapton, etc.? Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 24, 2017 Report Share Posted January 24, 2017 something is telling the DNA board to cut power...in and out....in and out.....in and out. either sag or a poor connection whether it's cell related or....? poor or dirty cell contacts? weak connection pressure against the cell... you see how cell 1 looks like a saw tooth? but cell 2 is smoother. if you spin or wiggle the cells, while firing, does the behavior get worse/improve?are you getting the "check battery" or "imbalanced cell" error on the mod's screen when this is happening? Link to comment Share on other sites More sharing options...
giz_60 Posted January 24, 2017 Author Report Share Posted January 24, 2017 This particular setup is single wire, contact coils...but have had the same thing happening on spaced coils as well... Link to comment Share on other sites More sharing options...
giz_60 Posted January 25, 2017 Author Report Share Posted January 25, 2017 No change while spinning the cells...after reviewing the chart farther back, for some reason sometimes cell 1 takes a dive at the initial fire & then they both start sawing & at other times cell 2 takes the dive before the sawing...but now both cells seem to be running pretty much together...Edit...almost forgot...only screen I am getting is advising about temperature being achieved...no check battery or imbalanced cell Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 25, 2017 Report Share Posted January 25, 2017 does it do it in reg wattage/kanthal mode as well? can you try it it at, say at 100w? Link to comment Share on other sites More sharing options...
giz_60 Posted January 25, 2017 Author Report Share Posted January 25, 2017 Nope...no fluctuation in power mode at 100w...fairly consistent fire...but then again, it seems to operating normal now...working like usual in TC mode now too.... Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 25, 2017 Report Share Posted January 25, 2017 it might be a poor connection somewhere between the board and your build. i.e. 510 wires (soldering), 510 itself, poor atty for TC. loose wire post connections. dirty 510. if you open atomizer analyzer and tap on the atty or mod, does the resistance change a considerable amount? does this behavior occur with all attys or just one in particular?it's super hard trying diagnose problems like these over the internet, but we'll see if we can figure this out. Link to comment Share on other sites More sharing options...
giz_60 Posted January 25, 2017 Author Report Share Posted January 25, 2017 I already check the atomizer in the analyzer & it seems to very stable. The deck on this atomizer screws directly to the 510 on the mod...no contact points to transfer resistance between the coil & the mod...when re-wicking a few minutes ago, double checked all screws on deck & they are all tight, no hot spots on the coils...everything as it should be. Always clean the 510 on mod & atty with IPA every time I remove an atty my mods...It has done this with other atty's as well....but now it seems to be working as it is supposed to be...I can understand the diagnosing over the net thing... Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted January 25, 2017 Report Share Posted January 25, 2017 ya glad it's working correctly again, hope it stays that way. maybe as a last ditch effort, if it happens again, re-flash the firmware you're running. other than that i'm out of ideas! lol. something's not letting the board deliver the wattage you have selected. it's either on the battery side or atty side, is my GUESS. Link to comment Share on other sites More sharing options...
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