Temp Control : I think Ive just wasted a Fiver.

[phtumshk]

After vowing never to try TC I thought what the hell the wires only a £5 lets see what all the fuss is about.

Ok, so Ive wrapped a 10 coil of 0.3 wire that comes out at 0.12 in a kayfun on a DNA 40.

Ive currently got it set at 200c at 25watts.

While Im getting some vape from it vapour production is p!ss poor, though it does seem to have more of a kick than a regular A1 Kayfun.

Increasing the temp seems to just increase the heat of the vapour produced rather than produce more vapour.

Question is do I just keep uping the watts till It vapes as it should or am I doing it completely wrong.

ATM Im not particularly impressed with TC, was expecting amazement straight out the box.

TIA.

[GeoffUK]

Have a look on Steam Engine for your wire and coil specs. What wattage does it recommend for upper green range?

25W is a bit lower than my 0.2 ohm Ti coil at 200 degC

[GeoffUK]

Mind you that's the thing with TC, once the chosen temp resistance is detected the MOD auto backs off the watts. Have you definitely got the Nickel setting chosen on the MOD?

[Q]

You cant set wattage AND temperature, if you're using TC the temperature is KING, I only have one mod where you can adjust watts in temp mode, what you do with that one is set your temp, then up the watts, TC will regulate the watts for the temperature.

Most mods dont even allow you to adjust watts in temp mode

[phtumshk]

Nov 10, 2015 11:46:25 GMT GeoffUK said:

Have a look on Steam Engine for your wire and coil specs. What wattage does it recommend for upper green range?

25W is a bit lower than my 0.2 ohm Ti coil at 200 degC

Good point never thought of looking.
I just averaged every TC thread ive read and decided at 10wraps  at .12 as a start point.

[phtumshk]

Nov 10, 2015 11:53:44 GMT GeoffUK said:

Mind you that's the thing with TC, once the chosen temp resistance is detected the MOD auto backs off the watts. Have you definitely got the Nickel setting chosen on the MOD?

Its an old evolve DNA 40 not really sure there was the option to choose wire types.
I say old, it was probably cutting edge 12 months ago lol.

Nov 10, 2015 11:55:42 GMT Q said:

You cant set wattage AND temperature, if you're using TC the temperature is KING, I only have one mod where you can adjust watts in temp mode, what you do with that one is set your temp, then up the watts, TC will regulate the watts for the temperature.

Most mods dont even allow you to adjust watts in temp mode

Ah right I wasnt aware of this.

Ill add another couple of wraps while the mods on charge and see if it improves things.

[Q]

Nov 10, 2015 12:19:20 GMT phtumshk said:

Nov 10, 2015 11:53:44 GMT GeoffUK said:

Mind you that's the thing with TC, once the chosen temp resistance is detected the MOD auto backs off the watts. Have you definitely got the Nickel setting chosen on the MOD?

Its an old evolve DNA 40 not really sure there was the option to choose wire types.
I say old, it was probably cutting edge 12 months ago lol.

Nov 10, 2015 11:55:42 GMT Q said:

You cant set wattage AND temperature, if you're using TC the temperature is KING, I only have one mod where you can adjust watts in temp mode, what you do with that one is set your temp, then up the watts, TC will regulate the watts for the temperature.

Most mods dont even allow you to adjust watts in temp mode

Ah right I wasnt aware of this.

Ill add another couple of wraps while the mods on charge and see if it improves things.

A lot has changed in the past 12 months, are you sure that your mod is capable of using Ni200? seems rather odd that you cant choose wire type, actually it sounds like my Smok M80, TC works but not how the latest mods do it

[Deleted]

Nov 10, 2015 11:55:42 GMT Q said:

You cant set wattage AND temperature, if you're using TC the temperature is KING, I only have one mod where you can adjust watts in temp mode, what you do with that one is set your temp, then up the watts, TC will regulate the watts for the temperature.

Most mods dont even allow you to adjust watts in temp mode

I have 4 different TC mods and I can adjust the wattage on all of them after setting my temperature ... Sigelei 75 tc and 150 tc, evic mini tc and HB 40.

[mikedidthis]

Nov 10, 2015 12:29:32 GMT @yinyang said:

I have 4 different TC mods and I can adjust the wattage on all of them after setting my temperature ... Sigelei 75 tc and 150 tc, evic mini tc and HB 40.

On the evic mini vtc this is true, but your setting the max wattage to use in TC mode. The device still works out what wattage to use until the max wattage, which you set, is reached.

[glen]

If its a dna40 board it definitely uses nickel coils, and you can adjust wattages

[Deleted]

Nov 10, 2015 12:38:11 GMT mikedidthis said:

Nov 10, 2015 12:29:32 GMT @yinyang said:

I have 4 different TC mods and I can adjust the wattage on all of them after setting my temperature ... Sigelei 75 tc and 150 tc, evic mini tc and HB 40.

On the evic mini vtc this is true, but your setting the max wattage to use in TC mode. The device still works out what wattage to use until the max wattage, which you set, is reached.

I know that but Q said that you can't adjust wattage when in TC mode ... that is incorrect. You can adjust the initial firing wattage that will be applied to hit the required temperature.

[VapingBad]

Same first principles as any coils if you are not getting enough vapour production you need more contact area between coil and wick, more airflow or more wicking, probably the first by the description in the op phtumshk. So either more wraps, larger diameter coils or smaller diameter wire & more wraps if you don't have the space. EG a 12 wrap coil at a set temp should produce uptp 20% more vapour than a 10 wrap. You can turn up the temp, but that sorts of defeats the point IMO. And the DNA40 is still a top notch temp limiting board despite being a year old, the only draw backs are the max power & min resistance.

[GeoffUK]

None of this helps our man with his lost fiver.

I can set my wattage up to 200W, now there is a pre heat setting where the MOD will supply monster wigglies to the coil until it detects the resistance is within 5% of the set value then it backs off to maintain the resistance value which is related to the temperature of the coil.

The trick for me is getting the MOD to accurately track the temp/resistance values. At no point does the MOD actually sense the physical temperature of the coil, it merely assumes that for a given rise in resistance, there must be a relative rise in temperature.

Technically everyone is right, you can alter the wattage in temperature mode yes but after that initial surge, the watts are controlled and limited in my case, to between 10 and 15W by the MOD.

[VapingBad]

Nov 10, 2015 12:23:49 GMT Q said:

Nov 10, 2015 12:19:20 GMT phtumshk said:

Its an old evolve DNA 40 not really sure there was the option to choose wire types.
I say old, it was probably cutting edge 12 months ago lol.

Ah right I wasnt aware of this.

Ill add another couple of wraps while the mods on charge and see if it improves things.

A lot has changed in the past 12 months, are you sure that your mod is capable of using Ni200? seems rather odd that you cant choose wire type, actually it sounds like my Smok M80, TC works but not how the latest mods do it

It is in the board Q, DNAs don't have modes under the skin it is smart enough to be able to determining if you have a temp sensing coil installed without requiring you to remember to set it.  You can turn temp limiting off but you don't need to do stuff that some more basic designs need like select temp mode or lock the resistance.  DNA200s work the same, but you have different materials profiles for wires and it will use the current one to determine if it's a temp sensing coil by if it raises at least 150 F in the first second of firing.

[phtumshk]

A change of mods appears to have improved things.
The evic mini appears to be more plug n play and is vaping like my regular Kfuns to a point.

The odds are still on me being back on A1 by tea time though lol.

Thanks all for the input.