TC Always at 600 Degrees!!!

[PBody19]

Veterans,

Please help me out on this, I don't understand the problem.

I am trying to use TC on my RX2/3. I am using a 22m Gemini rta, with a stainless steel 316L build. It is a dual coil, Contact, 9 wrap, single core clapton build, coming in at .22 ohms, which I locked in on the device. The wire is 24ga core, 36ga wrap, all SS316L, from Lightening Vapes (pre-made clapton wire). I am using TCR mode, set at 118. This TCR value is the one that DJ LSB said to use on his review of the RX2/3. His chart showed that this TCR value gives very accurate readings for SS316L wire in single and dual coil configurations on the 2/3.

The problem is, I cannot get any vapor unless I set the temperature to 580 degrees F or higher. I have the power set to 50w. On DJ LSB's charts, he was showing readings for TC from 400 degrees F an up. Every time I try to fire below 580 degrees, I immediately get "Temp Protect," even if I leave the mod alone for 15 minutes.

I can use TC on my Alien with no issues. I can set my temperature as low as 350 degrees, and while temp protection does eventually kick in, as it should, I can at least fire the damn thing at all temperatures no problem.

Does anyone have an idea of what the issue is? For the life of me, I can't understand. I want to experiment with the TCR values on my RX2/3, but I have no idea at what temperature a build like this should start tasting burnt. Of course, I can set the TCR in the 130-40's and then be able to set my temperatures in the 400s, but I am getting burnt tastes and such when taking big pulls when I do this. Does anyone have any suggestions on how to get my rx2/3 to work properly, or what temperature range I should be looking to fire this build w/ a particular TCR, or something along those lines, so that I can get a proper vape with it? Thanks a ton.

 

[classwife]

Moved you to Temperature Control from Ask The Veterans as you will need to participate in your thread

 

[zoiDman]

I don't know all that much about TC on a RX2/3 because I Don't have one.

But I can Bump your Thread for you.

 

[PBody19]

Moved you to Temperature Control from Ask The Veterans as you will need to participate in your thread

Thanks, not sure how I missed that sub-division lol

 

[AtmizrOpin]

assuming your connections are secure/stable/clean (510, atty's 510, post screws, spaced coils etc), it's most likely the TCR not matching up to your SS. not all SS is created equal. you said 118 (TCR) was too weak and 130-140 (TCR) was too hot? i would slowly up that number from 118 up until 130 until the vape suits your needs around the 500F (or at whatever temp you like your TC vapes at). start at 120, back your temp down to 400F and take a vape in 10 degree increments until you get to......say, 500F, not enough? up the TCR to 121 and repeat starting at 400F up to 500F " " "" "" "".

keep in mind we'er still "temperature guessing" with these mods. as of yet, there are no mods that can actually monitor the temp of the coil, directly. TC is still done using the change in resistance of the coil and there is a slew of things that can throw a wrench in the works. i wouldn't get too hung up on "the right TCR". you just have to tune the TCR in for your SS. you'll find it eventually. i too have some 26g lightening vapes SS316 and can confirm that i need to run my DNA mods upwards of 500F-570F to get the vape i want.

 

[PBody19]

assuming your connections are secure/stable/clean (510, atty's 510, post screws, spaced coils etc), it's most likely the TCR not matching up to your SS. not all SS is created equal. you said 118 (TCR) was too weak and 130-140 (TCR) was too hot? i would slowly up that number from 118 up until 130 until the vape suits your needs around the 500F (or at whatever temp you like your TC vapes at). start at 120, back your temp down to 400F and take a vape in 10 degree increments until you get to......say, 500F, not enough? up the TCR to 121 and repeat starting at 400F up to 500F " " "" "" "".

keep in mind we'er still "temperature guessing" with these mods. as of yet, there are no mods that can actually monitor the temp of the coil, directly. TC is still done using the change in resistance of the coil and there is a slew of things that can throw a wrench in the works. i wouldn't get too hung up on "the right TCR". you just have to tune the TCR in for your SS. you'll find it eventually. i too have some 26g lightening vapes SS316 and can confirm that i need to run my DNA mods upwards of 500F-570F to get the vape i want.

Ok, I guess that makes me feel better that you have to vape above 500F on a DNA device. And I appreciate the advice about the TCR. My main concern though is that, shouldn't I, I guess ideally, be able to find a TCR that does let me vape comfortably in the 400-500F range? In other words, if I can only seem to find a TCR that allows me to vape comfortably above 500 degrees, and any TCR that let's me vape between 400-500F tastes burnt, aren't I better off vaping SS in power mode at that point, meaning, the mod just can't do it right?

 

[PBody19]

So, I never replaced the build or wick, and never unlocked the resistance. I used the same 188 TCR setting on my rx2/3 today, and Im happily vaping my gemini at 470F and 65w. Can anyone explain this? Im happy about it, just so confused lol

 

[AtmizrOpin]

it's all temperature guessing. one mod can vape completely different from the next when dealing with TC. there's so many variables that come into play when trying to dial in TC vapes it can make a person want to give up entirely on TC and just vape in wattage mode, this happens a lot. take into consideration we're measuring temp with resistance changes. these changes become smaller and smaller as we use wire with lower and lower TCR's. SS316 has the lowest TCR of the commonly used wires for TC. compound onto that the many connection points between the SS wire and the board inside the mod. all these connection points can add unwanted resistance to the circuit we're using to measure the resistance of the coil, not good. it's always a good idea to keep all connections clean and secure. i usually wet the corner of a napkin with iso alc and cram in into my mod's 510 and spin the mod as to clean the 510's threads and pin, same with the atty.

next time you're rebuilding your atty, take a spare piece of cotton and stick in the coil, start at a low temp, slowly up it and see at what temp your cotton starts to burn. that will give you an idea of where your limit should be around. also sacrifice some wraps for fitting in a spaced coil. spaced coils tend to work better for TC, better all-around stability.

188 seems very high for ANY SS but if 188 is working for you, stick with it. with today's TC tech, that number is somewhat arbitrary for our purposes. i would try leaving the resistance unlocked. i do know joyetech mods have resistance refinement. meaning, the board will try and lower the resistance, while the mod is left idle for about 20-30 min, for a more accurate TC vape. just know this may have you upping your temps slightly after refinement.

 

[PBody19]

it's all temperature guessing. one mod can vape completely different from the next when dealing with TC. there's so many variables that come into play when trying to dial in TC vapes it can make a person want to give up entirely on TC and just vape in wattage mode, this happens a lot. take into consideration we're measuring temp with resistance changes. these changes become smaller and smaller as we use wire with lower and lower TCR's. SS316 has the lowest TCR of the commonly used wires for TC. compound onto that the many connection points between the SS wire and the board inside the mod. all these connection points can add unwanted resistance to the circuit we're using to measure the resistance of the coil, not good. it's always a good idea to keep all connections clean and secure. i usually wet the corner of a napkin with iso alc and cram in into my mod's 510 and spin the mod as to clean the 510's threads and pin, same with the atty.

next time you're rebuilding your atty, take a spare piece of cotton and stick in the coil, start at a low temp, slowly up it and see at what temp your cotton starts to burn. that will give you an idea of where your limit should be around. also sacrifice some wraps for fitting in a spaced coil. spaced coils tend to work better for TC, better all-around stability.

188 seems very high for ANY SS but if 188 is working for you, stick with it. with today's TC tech, that number is somewhat arbitrary for our purposes. i would try leaving the resistance unlocked. i do know joyetech mods have resistance refinement. meaning, the board will try and lower the resistance, while the mod is left idle for about 20-30 min, for a more accurate TC vape. just know this may have you upping your temps slightly after refinement.

I appreciate the advice

And sorry for the typo. I meant that 118, the original that DJ LSB had recommended, that was initially not working for me, actually works for me now without changing anything... Never played with the build, never rewicked the coil, never unlocked the resistance on that TCR profile, never adjusted the TCR on that particular profile and then brought it back to 118. It just all of a sudden began to work for me. I was vaping at 460F all evening with it. Really wierd lol.

 

[VapNMirrors]

We never really know the true TCR of our material, or the internal resistance of the mod/510/atty, or the temp we're actually getting. The published TCR's are a starting point and the numbers DJLSB give are only guaranteed to work for the mod in his hand (and at the time it is in his hand). This is exactly why folks spend $$$ on DNA's and Yihi's.

I just adjust my TCR so that my vape is where I want at "450F" across all my tanks.

 

[PBody19]

We never really know the true TCR of our material, or the internal resistance of the mod/510/atty, or the temp we're actually getting. The published TCR's are a starting point and the numbers DJLSB give are only guaranteed to work for the mod in his hand (and at the time it is in his hand). This is exactly why folks spend $$$ on DNA's and Yihi's.

I just adjust my TCR so that my vape is where I want at "450F" across all my tanks.

Yea im understanding things are like this now unfortunately. It woukd be nice if TC were more concrete so that its nothing for a company u to make a mod with an accurate TC, but it just isnt that way.

So like you said, we can only set up TC to work in a way that we enjoy, not in a way that meets the parameters we want, unless we the right equipment of course. Kinda sucks.

 

[VapNMirrors]

You have to consider the demands put on these mods: to have accurate SS TC they have to measure resistance/voltage/current in real-time, under load, under heating, and with the accuracy of a piece of lab equipment. As tech goes, the quality/price/ease of use will all improve. We are still all early adopters.