TCR v DISPLAYED TEMP - thoughts?

[robby]

As I see it, an accurate displayed temperature is totally dependant on the correct TCR being used. 

If it isn`t totally accurate, it will throw the displayed temperature out. It is the major variable in the displayed temperature calculation.

If the TCR isn`t accurate, it will affect the calculation that determines the displayed temperature and therefore the voltage at which the voltage is switched on and off, if you use the displayed temperature as an accurate reflection of the temperature. 

The resistance measurement in the mod is also very important, it must be very accurate.


As a very basic calculation ............ Displayed temp = Coil Resistance x TCR


Thoughts people?

[Deleted]

My thoughts are

if i understood the Q the answer would be very simple and forthcomeing

[Bobsbeer]

You may be right robby, but how will you ever know if any of the readings shown are accurate? The resulting vape is the only way to judge if the temperature is being controlled and to what degree, and that is very subjective.

[robby]

It`s not a question as such, just wondering if other people understand it the way I do. It`s a very simplified explanation of temperature control and how frustrating it can get if the mod doesn`t have an accurate TCR value setting for the coil you are using 

[robby]

Jan 31, 2016 10:47:40 GMT Bobsbeer said:

You may be right robby , but how will you ever know if any of the readings shown are accurate? The resulting vape is the only way to judge if the temperature is being controlled and to what degree, and that is very subjective.

Exactly, that`s the method I use, the displayed temperature setting really cant be totally trusted without 100% accuracy for the TCR.

[Bobsbeer]

I think at best the displayed temperature can only be a guide, and may in reality be way out. It will be interesting if and when the Innokin Disrupter mod comes out whether that is any better or more accurate.

[SteveF]

the displayed temperature is a representative calculation of the dynamaic resistance based on the TCR.

1) who is to say the base resistance reading is correct? ( evic mini )
2) who is to say that the material used SS/Ti/Ni200 is of the correct composition?

[robby]

Jan 31, 2016 14:31:04 GMT SteveF said:

the displayed temperature is a representative calculation of the dynamaic resistance based on the TCR.

1) who is to say the base resistance reading is correct? ( evic mini )
2) who is to say that the material used SS/Ti/Ni200 is of the correct composition?

Both good points which is why I prefer the partial vape it and see response, especially for your second point.

[SteveF]

Suck it and see.......thats the way I usually do it, but I have been using the cotton test again ( TFV4 mini RCA deck not liking TC) and with a DNA200 my titanium has been starting to colour the wick at 185*C....a resistance issue somewhere.

[VapingBad]

You are not wrong robby given that the target is a single temp adjusting these so it cuts power at the point you want should work. But it will make life trickier if you want to vape with different wires and or different temps or on different devices. IMO It also makes it hard to help people online and I feel devices or wires that are particularly problematic should be avoided where possible. If you are going to stick to one or two wire & temp combinations on a single type of mod where adjusting to taste and remembering the settings is manageable it not big a problem.

[robby]

Jan 31, 2016 15:40:43 GMT VapingBad said:

You are not wrong robby given that the target is a single temp adjusting these so it cuts power at the point you want should work. But it will make life trickier if you want to vape with different wires and or different temps or on different devices. IMO It also makes it hard to help people online and I feel devices or wires that are particularly problematic should be avoided where possible. If you are going to stick to one or two wire & temp combinations on a single type of mod where adjusting to taste and remembering the settings is manageable it not big a problem.

I tend to be running a coil for at least a week, I might switch devices between about three favourites although lately I`ve been using the Asolo quite a lot which is a simple setup with nothing to remember. Stick any coil on it, find your sweet spot on power mode and switch to TC. I dont bother with the nickel mode etc. Any wire works in the learning mode. I`ve seen reports that you have to keep "teaching" the mod but I honestly haven`t found that and mine was definitely one of the early ones.

[sydsut]

Jan 31, 2016 20:21:36 GMT robby said:

Jan 31, 2016 15:40:43 GMT VapingBad said:

You are not wrong robby given that the target is a single temp adjusting these so it cuts power at the point you want should work. But it will make life trickier if you want to vape with different wires and or different temps or on different devices. IMO It also makes it hard to help people online and I feel devices or wires that are particularly problematic should be avoided where possible. If you are going to stick to one or two wire & temp combinations on a single type of mod where adjusting to taste and remembering the settings is manageable it not big a problem.

I tend to be running a coil for at least a week, I might switch devices between about three favourites although lately I`ve been using the Asolo quite a lot which is a simple setup with nothing to remember. Stick any coil on it, find your sweet spot on power mode and switch to TC. I dont bother with the nickel mode etc. Any wire works in the learning mode. I`ve seen reports that you have to keep "teaching" the mod but I honestly haven`t found that and mine was definitely one of the early ones.

I agree robby  , I've got the 75watt SOLOmini and it only takes a few seconds to get the taste right in wattage/power mode on most of my tanks, with a variety of coil materials, press for TC mode and away you go. It really couldn't be much simpler. Will probably get the Asolo 200watt for the TFV4 which only really comes too life at the top of the minis power range.

[VapingBad]

Jan 31, 2016 20:21:36 GMT robby said:

Jan 31, 2016 15:40:43 GMT VapingBad said:

You are not wrong robby given that the target is a single temp adjusting these so it cuts power at the point you want should work. But it will make life trickier if you want to vape with different wires and or different temps or on different devices. IMO It also makes it hard to help people online and I feel devices or wires that are particularly problematic should be avoided where possible. If you are going to stick to one or two wire & temp combinations on a single type of mod where adjusting to taste and remembering the settings is manageable it not big a problem.

I tend to be running a coil for at least a week, I might switch devices between about three favourites although lately I`ve been using the Asolo quite a lot which is a simple setup with nothing to remember. Stick any coil on it, find your sweet spot on power mode and switch to TC. I dont bother with the nickel mode etc. Any wire works in the learning mode. I`ve seen reports that you have to keep "teaching" the mod but I honestly haven`t found that and mine was definitely one of the early ones.

For people like you, me and other "hobbiests" as you say it is not much of a problem, but for the wider world you get reactions like Todd's temp control rant.   Even vaping one flavour I have 3 temps for different types of build, on top of that I am currently using 3 different wires so if I had to have a separate temp scale for each wire on each device you quickly end up with too many settings just compensating the temp.  But like in the OP you can tweak the TCR to equalise them more it is a lot more straight forward and I, and think you do to, a scorch test when a coil doesn't behave as I expect to get an offset, again no prob for us but....   It is great that you can do these to tailor your device rather than bin it though.

I can't comment on the Asolo as not tried one, I have got more than enough mods I really like to justify spending to try something out that I don't think I would prefer, but glad you like yours.

[robby]

I think my main point is not to put a lot of faith in what temperature the mod says you are working at. Most of the time it is inaccurate, different builds with the same metal tend to prove that. I think most people when they see a temperature reading think of it as a true reference like with a thermometer in an oven etc. It reality, it really isn`t in this application. I can totally understand anyone`s confusion. So easy to get mentally waylaid when you are trying to get this stuff into the old grey matter I can see why the Asolo was made, it gets rid of most of the uncertainty when using TC.

[VapingBad]

I have found it very consistent and accurate going by scorch tests using DNAs, when it's not it has been a prep or build mistake. All my DNA200 use the same settings for particular builds, actually the one with a Varitube occasional has to be slightly different and would expect that more so with some of the off the shelf mods. I use the same temp with Ni and Ti, but a little lower with SS317L as it is not as smooth, I need a bit higher temp with ribbon on ss rope as the wick conducts heat so fast and much lower temp with the Aromanizer horiz build but it is consistent across wire types with similar geometry builds.

The only mod I have had that was on it's own quite different temp scale was the SX Mini M Class, it ran far too hot. I tried a couple of DNA40 clones and while the temp limiting worked the other niggles like delays and weak pre heat means they don't get used dispute being great bang for buck. So I just spent on Evolv stuff after that as I am a skinflint and have a tight vape budget, you can get more bang for your buck, but I will only vape the one that works best for me every time so bargains would just not get used. I have been tempted to try an Evic Mini but I just don't need one as I have 3 DNA40s and 4 DNA200 (only 1 of those was off the shelf).

But I think we do both agree that everyone should trust their taste buds and experience as a vaper more than the read out on any mod or reviews.