Is my tc working?

[flavourtank]

I'm not sure if there's a thread or not regarding this.

But how do you test if tc is working and how to do cotton burn test?

Just thinking it might help some newbies as well

[phatfil]

If i post miss-info im sure someone will correct me, to conduct a cotton burn test build a Ni200 coil with a 2.5+mm inner diameter to facilitate an easy wick pull through. i tear off the top layer of a cotton pad and tear that into 1/2-1/3 to use depending on how thick and roll the into a wick to thread through the wick.

wick the coil by just pulling enough through so all the coil is in contact with cotton.

set the mod to say 230C and fire the mod

pull the wick through a bit more and examine the cotton that was within the coil, if burnt/singed drop the temp by 5-10C
if not raise it by 5-10C and repeat with the wick pulled through a bit more so the coil is engaged with clean new cotton

repeat until you know the max temp that leaves your cotton as white at the end of a firing as it was before the heatup..

the major difficulty is damaging or misshaping the coil with the cotton being pulled in n out the nickel is way softer than the usual Ka wire used if so recoil and wick with less cotton

hope thats helpful..

[VapingBad]

Just make a coil in a dripper preferable, put some dry cotton in it, set the temp to 400 F and fire for 10 seconds and there should be no marks. DNA40s start to leave a very faint mark around 420F, don't sweet it if it is 20-30 degrees out just adjust to taste.

[VapingBad]

The time is very important you need to do 10 seconds at each temp to really see what they are doing IMO.

[flavourtank]

VapingBad and phatfil

That's great advice helps me a lot and hopefully others.

[Deleted]

flavourtank There's a difference between TP working and TP working correctly.

Below is a DNA40 scorch test I did in the very early days. It shows TP working but it doesn't take much to realise something's amiss.



If for whatever reason you have a resistance reading different from the actual resistance, the temps indicated in the test will be meaningless.

You need to have complete confidence in your atty and build before you take the readings as a datum.

[VapingBad]

That looks too hot to me @scooby, I don't get marks until 420 F for 10 secs, BTW SM Mini M class was returned for a refund as faulty so ignore that result.

[Deleted]

Jul 15, 2015 9:32:34 GMT VapingBad said:

That looks too hot to me @scooby, I don't get marks until 420 F for 10 secs, BTW SM Mini M class was returned for a refund as faulty so ignore that result.

Yep, it was for illustration purpose only VapingBad I did this in the first two very frustrating weeks of DNA40 ownership last Nov. 

Of course I found that the care needed to be taken and it was a whole new ball game compared with Kanthal and non TP

The results were a combination of being a contact coil, poor build and an atty that wasn't suited to ni200/low resistance and so I experience swings in resistance that threw out the TP

I Just mentioned it to point out that fact  

[phatfil]

Why do folk use the Fahrenheit scale when doing these tests, I can understand that yanks using the F scale they dont know any better but the celcius/centigrade scale is way more familiar to folk in europe and the UK, publish a temp in F and i need to google its value in celcius which i get.... come on chaps

[robby]

Jul 15, 2015 12:29:41 GMT phatfil said:

Why do folk use the Fahrenheit scale when doing these tests, I can understand that yanks using the F scale they dont know any better but the celcius/centigrade scale is way more familiar to folk in europe and the UK, publish a temp in F and i need to google its value in celcius which i get.... come on chaps

All the mods seem to have fahrenheit, but not all have centigrade, and personally I prefer fahrenheit  ............................. and pints and pounds and ounces lol

[Deleted]

It's because it's high temperatures.

Most people without realising it do a mix anyway.

If it's cold it's "Christ it's only 4 degrees!" - Centigrade

When it's hot for a while it's "in the 80's" - Farenheit

[Deleted]

Jul 15, 2015 12:29:41 GMT phatfil said:

Why do folk use the Fahrenheit scale when doing these tests, I can understand that yanks using the F scale they dont know any better but the celcius/centigrade scale is way more familiar to folk in europe and the UK, publish a temp in F and i need to google its value in celcius which i get.... come on chaps

My first one, the one I did that test with was F only phatfil all subsequent boards I have are dual and I agree with you and use C now.

I guess that most of us learnt from the vaping community and F is what they were using (as there was no choice then) so everyone stuck to.  

[VapingBad]

Jul 15, 2015 12:29:41 GMT phatfil said:

Why do folk use the Fahrenheit scale when doing these tests, I can understand that yanks using the F scale they dont know any better but the celcius/centigrade scale is way more familiar to folk in europe and the UK, publish a temp in F and i need to google its value in celcius which i get.... come on chaps

Got used to it and all the early info was in F and most of the info now is so it saves on conversion errors with mental arithmetic. I got my 1st DNA40 in Oct, 2nd in Dec & Kinxin in June none of these do Celsius.  I have a DNA40 gold and a DNA200 arrive today and will use them in Fahrenheit, but for most things I am metric.

[Deleted]

Jul 15, 2015 12:46:40 GMT VapingBad said:

Jul 15, 2015 12:29:41 GMT phatfil said:

Why do folk use the Fahrenheit scale when doing these tests, I can understand that yanks using the F scale they dont know any better but the celcius/centigrade scale is way more familiar to folk in europe and the UK, publish a temp in F and i need to google its value in celcius which i get.... come on chaps

Got used to it and all the early info was in F and most of the info now is so it saves on conversion errors with mental arithmetic. I got my 1st DNA40 in Oct, 2nd in Dec & Kinxin in June none of these do Celsius.  I have a DNA40 gold and a DNA200 arrive today and will use them in Fahrenheit, but for most things I am metric.

Your right it's what you get used to and after all it's only a number as the tests of all the various device scorch tests show

I hot smoke and when looking for recipe inspiration all the Brisket, pork, rib etc info on the web is in F, that's the only time I'm none metric, I just got used to it.

[phatfil]

I say reject the redundant scale chaps and chapeses, its the thin end of the wedge, adopt the now yanky scale and soon you will be happy buying tiny gallons (3.7l rather than 4.5) and supping short pints(16 oz) too..

by all means use the old scale if you need to but have the decency to use 'real money' when publishing results

(tongue firmly in cheek...)