Temp Control Guinea Pigs Needed

[Tubbyengineer]

All my wire is from you @stealthvape - NiFe30, SS316 & Titanium - which reminds me, I need some more - shopping time...

 

[Major Hazzard]

Count me in.. I love TC mode on my DNA devices. I've found the in built materials poor and use DJaquith v4 which works well.. But I'd be delighted if yours is better. :-)

 

[flearider]

just picked up another spool of .5 and .6 316l ..
why not .. if the csv's are done ..

 

[Peeej]

Me too please, I use your NiFe30 and SS316
thanks

 

[stealthvape]

CSV's aren't quite ready

Using a 1500w counter top hotplate wired to a PID controller and a k type thermocouple for temperature measurements.

Plan is to wire a coil and immerse in the liquid which you heat up and measure coil resistance at 20c, 50c, 75c right up to 300c or so.

Then use that data to generate the CSV.

 

[Mr Numpty]

Using a 1500w counter top hotplate wired to a PID controller and a k type thermocouple for temperature measurements.

Nice. How does it vape?

 

[Dorset]

DNA 75 and 75C's. At the moment I'm using SS316 with the two common profiles - 316L and 316L Elite. Still trying to figure out the difference ..

Anyway - Replay - is it just an easy way to setup the mod for TC or is 'a big leap' ??

 

[stealthvape]

Nice. How does it vape?

Like a train? haha

 

[stealthvape]

DNA 75 and 75C's. At the moment I'm using SS316 with the two common profiles - 316L and 316L Elite. Still trying to figure out the difference ..

Anyway - Replay - is it just an easy way to setup the mod for TC or is 'a big leap' ??

Beyond easy. Temp control is old hat now. Somewhat of an irony about the TRF graphs admittedly but I'm going to make them anyway

 

[stealthvape]

Thought I'd update as progress isn't as quick as I'd like.

Using a a few ktype thermocouples I made a ni200 TFR

Ni200 TFR from Steam Engine

"Temperature (degF)","Electrical Resistivity"
-40.0000,0.7448927999
68.0000,1.0000000000
122.0000,1.1241308212
212.0000,1.3485979843
302.0000,1.6356541085
392.0000,1.9227102327
482.0000,2.3087638676
572.0000,2.7044757962

My results

"Temperature (degF)","Electrical Resistivity"
68.0000,1
122.0000,1.1041666666
167.0000,1.1979166666
212.0000,1.3333333333
257.0000,1.4583333333
302.0000,1.6197916666
347.0000,1.7708333333
392.0000,1.9531250000
437.0000,2.1354166666
482.0000,2.3229166666
527.0000,2.5312500000
572.0000,2.7656250000


The version of escribe I'm using accepts my TFR, but I'm told the current version moans about too many data points and no low temp line.

But, it works. The concept in general and how I'm doing it. The numbers are close enough to show I'm on the right track.

I've ordered a more precise temperature sensor. A platinum PT100 RTD sensor. Also some PG to put in the freezer to get the 0c measurement, maybe a lower temp too.

Hopefully the new public escribe will support more than 8 points like the version I'm using. Otherwise I'll have to drop down to 8 points, which will be fine.

If you fancy testing the above figures for ni200 I've attached an 8 point version with no cold measurement. Seems to work ok and escribe estimates the same TCR as a regular ni200 TFR as 0.006