DNA 200 Watt
- Thread starter MegaVap
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Opus200 just got to my apt grabbed it but heading on a business trip and wont get to play with it much the next few days. Should be a fun weekend.
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And where exactly do you think Lars got the info from?
Regards
Tony
Sent from my keyboard through my phone or something like that.
Yep..know about that. Tom and the little "working group" were involved with that. What I think Tom is gonna do is guide us by fine tuning things with the static resistance characteristics of individual atomizers. That can vary a lot and at the lower resistances of temp controlled vaping consequently affect the accuracy of the TCR curve controlled temps.
This isn't something that's a mandatory thing of interest for the average vaper..but definitely something to pay attention to for folks who are deep into the characteristics of good temp controlled vaping machines.
Duane
Yep... just another "stepping stone" in the evolution of vaping....maybe e-liquid makers will put temp limits on their products also....
Evidently Sweet Spot Vapor will have a csv specific to their Ti soon also.Absolutely agree. Tom is our DNA 200 guru and the expert go-to guy.
I know he's going to come through with the best Ti csv possible.
Nudge...Nudge.
Duane
Great idea!
I think we should start a campaign to get them all to do that. Maybe a bunch of folks asking them for the exact recommended temps for each of their juices...so we can make a decision as to whether to buy?
Or maybe in addition a published analysis of "bad guy" chemicals in each juice?
Duane
Isn't Sweet Spot the folks who were claiming magic proprietary vacuum annealing to turn inferior Grade 2 wire into the "perfect" vape wire and at a substantially higher price?
Too bad they managed to make the claims of metallurcical total crapola in the days when there are folks around who know the technology.
It's going to be harder and harder to do high priced black magic and sell it in the future.
Duane
I think it will be more important to map grade 1 than sweet spot vapor's grade 2 titanium. You shouldn't be using grade 2 anyway as it's very quick at forming heavy TiO2 layers.
Regards
Tony
Sent from my keyboard through my phone or something like that.
Great idea!
I think we should start a campaign to get them all to do that. Maybe a bunch of folks asking them for the exact recommended temps for each of their juices...so we can make a decision as to whether to buy?
Or maybe in addition a published analysis of "bad guy" chemicals in each juice?
Duane
Agree.... no matter which TC device we choose we are doing what? Controlling the temperature.... What is the advantage of controlling the temperature? Could it be to control the e-liquid to a level in which bad stuff is not being produced at high levels?
Funny but not really.... about 6 months ago I sent off about 10 e-mails to e-liquid makers asking for information on max temps for their products and etc..... not a single reply.... and about a year ago I sent e-mails to flavoring companies wanting information on chemical analysis of their products and did receive replies .... replies were the same in all cases ... "proprietary information will not be given".....
Maybe in the someday/not-too-distant future they will all be introduced to the possibility of potential proprietary bankruptcy?
Duane
We need to build a csv file for Titanium grade 1
Regards
Tony
Sent from my keyboard through my phone or something like that.
Absolutely agree. Tom is our DNA 200 guru and the expert go-to guy.
I know he's going to come through with the best Ti csv possible.
Nudge...Nudge.
Duane
In reference to the Steam Engine TCR, when you select titanium, there's a box for resistance on the far right... you do set the resistance of the coil you're using in that box, right? That's what I've been doing and, while it's slight, the scale does seem to change depending on what is set in that box. If I was understanding and using that correctly, won't you need to map a scale for each coil you use, ie, there won't be one single .csv file for everyone? My Ti coils have been coming out between 0.24 and 0.26 for singles, but I have a dual on the Velocity that's 0.185. I don't know, maybe the difference is too small to matter, but I've got separate profiles for each Ti coil I'm using. I admit, I only glanced through the "How it works" link, so maybe I'm wrong... off to re-read that section.
Edit: Going back and comparing outputs of different ohm coils, it seems incredibly small and the normalized TFR curve doesn't change, so maybe one .csv file is sufficient.
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That's my understanding also in how you use the Steam Engine beta TCR......."one size doesn't fit all" ..... thinkin' we are making progress....lots of folks helping out and working on this TCR business.....
Here's the output for my 0.185 coil:
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801881
70,1
200,1.251798561151079
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752
Here is one for my 0.24 coil:
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801882
70,1
200,1.2517985611510791
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752
And here is one for a coil at 0.35
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801881
70,1
200,1.2517985611510791
400,1.6391809629219705
600,2.026563364692861
800,2.4139457664637525
The numbers in color are the changes... curious as to if the incredibly small difference would matter.
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801881
70,1
200,1.251798561151079
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752
Here is one for my 0.24 coil:
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801882
70,1
200,1.2517985611510791
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752
And here is one for a coil at 0.35
"Temperature (degF)","Electrical Resistivity"
-100,0.6707249584947427
0,0.8644161593801881
70,1
200,1.2517985611510791
400,1.6391809629219705
600,2.026563364692861
800,2.4139457664637525
The numbers in color are the changes... curious as to if the incredibly small difference would matter.
nope! Not in the slightest and there is absolutely no need for that level of precision in those numbers but its just what the code spits out. Also, I see no earthly reason why the shape of the TCR response curve depends on the target coil resistance at the resting/reference temperature (which is 70F in this case a bit odd since that is 21°C not 20..)
All these numbers are saying is that if you have a coil with resistance of 0.5 (say) ohms at 70F, it will be 1.63918... x higher at 400F, 2.026...x higher at 600F etc. This is the same factor whether your coil is 0.5, 0.05 or 5 (all other things being equal which they probably arent in reality. Thats why the numbers dont change regardless of what resistance you plug in!
Maybe I'm missing something but here is what I've been doing using the Steam-Engine TCR's:
Once the TCR is displayed in the DNA200 Box I copy and paste it into Notebook and then save it as a *.csv file. Then load that file in a Profile. The csv file created only has 9 digits to the right of the decimal point thus rounded off.
My guess is that it is a rounding issue
By definition TFR(Ref, T) is all the same for a specific material, regardless of the magnitude of of R as TFR(Ref, T)=R(Observed Temperature)/R(Reference Temperature)
Example, Iodode Titanium, close to Gr1, TFR(20°C-200°C)=1.635 (second tab)
Means the resistance at 200°C will be 1.635 times higher than starting resistance regardless how big or low the latest might be.
That is the theory. But the practice can be different for these temperatures are average temperatures. The temperature difference along the coil can mix up things, especially in dual coil setup. Not to mention the (preferably but unfortunately not necessarily static) internal resistance of the other components of the system.
Therefore, as it is mentioned above, to calibrate/fine tune a device to a specific setup you will need proper measurements.
And for some reason I got a feeling that you will find some reliable test results here pretty soon
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