Announcement

**Dimal** · 12 March 2010, 07:01 PM

Re: My new KKTO - learning to use it!

Originally posted by 696D4B525257485F503E0 link=1258419890/131#131 date=1268294968

Hey mal.....what if i introduced an exhaust of sorts somehow? do you think that would prevent the battle?(between heat sources ;D)

That would be OK Warren.

You could even turn it your advantage by devising a simple cyclone to attach to the exhaust and capture all of the chaff. You wouldnt need to do anything fancy and this would ensure that all chaff was removed from the roasting chamber.... 8-)

Mal

**WSullivan** · 23 March 2010, 12:24 PM

Re: My new KKTO - learning to use it!

Ok i have a plan to try and attempt to compare TOs and enclosures online.....if i could get a hand from anyone with a KKTO or variant and the DMM and datalogger software it would be greatly appreciated :-*

This is mainly aimed at Gra as he is getting amazing climbs to fc prolly faster than anyone here with the KKTO or variant, but i would love anyone who would like to give it a go, to get a larger range of tests.....

This will(sort of)show raw heating power of the unit and thermal stability also......

Please describe your setup, your brand and wattage of TO, insulation you are using, you current power solution to the TO from the wall and any other pertinent stuff that you think may be relevant to conditions.....

Now, from a cold start, with no beans whatsoever, hit go on the datalogger software and hit full power on your TO, allow it to get up to temp and let it cycle for at least 10 mins, then turn off the TO and leave it on the roaster, and allow the temp to come down under its own steam till you run out of plotting space in the software.

Please leave the preferences as default in the software including the max time to graph so they all have common arcs when we compare them....

Save them as a good quality image at 640 x 480 and post em up here and we can compare......graphs lol

I really appreciate any help you can offer in this experiment

Ill go do mine now and post it in 25 mins

cheers
warren

**WSullivan** · 23 March 2010, 12:40 PM

Re: My new KKTO - learning to use it!

Originally posted by 4145637A7A7F607778160 link=1258419890/136#136 date=1269303877

Ok i have a plan to try and attempt to compare TOs and enclosures online.....if i could get a hand from anyone with a KKTO or variant and the DMM and datalogger software it would be greatly appreciated :-*

This is mainly aimed at Gra as he is getting amazing climbs to first crack prolly faster than anyone here with the KKTO or variant, but i would love anyone who would like to give it a go, to get a larger range of tests.....

This will(sort of)show raw heating power of the unit and thermal stability also......

Please describe your setup, your brand and wattage of TO, insulation you are using, you current power solution to the TO from the wall and any other pertinent stuff that you think may be relevant to conditions.....

Now, from a cold start, with no beans whatsoever, hit go on the datalogger software and hit full power on your TO, allow it to get up to temp and let it cycle for at least 10 mins, then turn off the TO and leave it on the roaster, and allow the temp to come down under its own steam till you run out of plotting space in the software.

Please leave the preferences as default in the software including the max time to graph so they all have common arcs when we compare them....

Save them as a good quality image at 640 x 480 and post em up here and we can compare......graphs lol

I really appreciate any help you can offer in this experiment

Ill go do mine now and post it in 25 mins

cheers
warren

Now for anyone having a bad day, and needs a laugh.........i am about to supply you with 1 x can of laughter :

I went down to the roaster, keen to get my investigative hat on.......................................my TO is DEAD!

element = OK

Fan = DEAD! >

Thats what i get for whinging and bi^&hing ;D

Please still post your pics as i can use em to compare when i source another TO :

eventually

cheers
warren

**Mono** · 23 March 2010, 12:45 PM

Re: My new KKTO - learning to use it!

Warren, count me in as I would also like to eliminate some variables as this is extremely frustrating as people will be using different techniques etc. We will at least be comparing Granny Smiths to Golden Delicious

Steve

**Mono** · 23 March 2010, 12:47 PM

Re: My new KKTO - learning to use it!

Originally posted by 5551776E6E6B74636C020 link=1258419890/137#137 date=1269304813

I went down to the roaster, keen to get my investigative hat on.......................................my TO is DEAD!

element = OK Smiley
Fan= DEAD! Angry

Thats what i get for whinging and bi^&hing Grin

Go figure :

...........bugger :-?

**Mono** · 23 March 2010, 12:51 PM

Re: My new KKTO - learning to use it!

Originally posted by 4850555540517A48444B1312250 link=1258419890/119#119 date=1268279101

wonder if others comment on whether they have ever got condensation on the glass lid like I do?

Hey, MM........guess what, I had some condensation with last roast. It was the first time I roasted Sumatra Mandeling 2009. Andy did say on BB that any fresher and you would have to pick them yourself so I wonder if they had more moisture than normal. It was a blend of 400g Brazilian natural pulped & 100g of the Sumatran. Next time with these I will pull out the Corretto.

Steve

**WSullivan** · 23 March 2010, 12:55 PM

Re: My new KKTO - learning to use it!

Originally posted by 5B4346465342695B57580001360 link=1258419890/119#119 date=1268279101

Im not accross all t/o and perhaps there are some differences in how they circulate the air. My whilst not a sealed system, does not suck air in from the outside, nor blow any out. There is 2 fans on it, an upper and a lower. The lower fan circulates the air around in the chamber,

The upper fan that blows warm air out the top, (apertures in the housing) giving the illusion of air flow through is actually just keeping the electronics from overheating.

It is not interacting with the roasting chamber, as part of the roasting process. If air was actually being circulated in this way, there would be a fair bit of chaff and dust accumulating in the top section.

Im not sure it matters that Michael is learning, the profiles he used are well documented. As he learns he will most likely just adopt longer profiles with more drying to help offset the issue, as was evident in his latest roast with which he noted that he was happy with the weight loss.

Perhaps my results were completely different to others.

I wonder if others comment on whether they have ever got condensation on the glass lid like I do?

Im not sure why we are having a debate about this, when really it should be a discussion. As far as I am aware the KKTO is still a work in progress. In my opinion as a home roaster, it has lots of potential. Why do I feel like my observations are unwelcome?

just to note, i just noticed when i was inspecting my stuffed TO, that mine(cookwell) is also a sealed system, no holes whatsoever for air to be sucked in........for what its worth

**A_M** · 23 March 2010, 04:41 PM

Re: My new KKTO - learning to use it!

Originally posted by 4541677E7E7B64737C120 link=1258419890/141#141 date=1269305705

ust to note, i just noticed when i was inspecting my stuffed TO, that mine(cookwell) is also a sealed system, no holes whatsoever for air to be sucked in........for what its worth

Drop it in.. I bet a quick fix for a person of good Electronic skills... Cost = 4 x Your special deserts

PS. I have a spare TO that I got for $70 just sitting here ;D They are for sale just up teh road..

**WSullivan** · 23 March 2010, 06:36 PM

Re: My new KKTO - learning to use it!

Originally posted by 67484143546B47484741434B434852260 link=1258419890/142#142 date=1269319317

Drop it in.. I bet a quick fix for a person of good Electronic skills... Cost= 4 x Your special deserts

Cheers AM, you home tmrw morn?

**A_M** · 23 March 2010, 07:38 PM

Re: My new KKTO - learning to use it!

Originally posted by 63674158585D42555A340 link=1258419890/143#143 date=1269326197

Originally posted by 67484143546B47484741434B434852260 link=1258419890/142#142 date=1269319317

Drop it in.. I bet a quick fix for a person of good Electronic skills... Cost= 4 x Your special deserts

Cheers AM, you home tmrw morn?

Assumptions... How long is a piece of string ?

Ya can drop it off if; I am not...

Or do you want access to my NEW spare as a loaner ? Rental is not cheep

Or to borrow my current one... I do not need to roast for a week any way... Did mine last night :P :P :P :P

**WSullivan** · 23 March 2010, 07:57 PM

Re: My new KKTO - learning to use it!

Originally posted by 16393032251A36393630323A323923570 link=1258419890/144#144 date=1269329882

Originally posted by 63674158585D42555A340 link=1258419890/143#143 date=1269326197

Originally posted by 67484143546B47484741434B434852260 link=1258419890/142#142 date=1269319317

Drop it in.. I bet a quick fix for a person of good Electronic skills... Cost= 4 x Your special deserts

Cheers AM, you home tmrw morn?

Assumptions... How long is a piece of string ?

Ya can drop it off if; I am not...

Or do you want access to my NEW spare as a loaner ? Rental is not cheep

Or to borrow my current one... I do not need to roast for a week any way... Did mine last night :P :P :P :P

Your too kind Mark :-*, i should be ok thou, im gunna have a hunt around tonight for a replacement, maybe a different brand? but if i get stuck(should be ok, as mates are taken care of...and i have more than enough for us)ill just pickup another cookwell and hope for the best :

Im hoping to get one with enough power to 600gms to first crack under 10mins that way in the future, if i decide to toy with PIDs dimmers etc then ill have that reserve power to get the roast where i want it......

thanks mate
warren

**Mono** · 23 March 2010, 09:54 PM

Re: My new KKTO - learning to use it!

TO data.

Ok, test run as per WSullys request.

Brand-Cooking Essentials (solid metal element)
Wattage-1400@240v
Arcosteel pasta set,not cut down.
Silicone tubing as per KK, Aluminum liner with KKs base insulation. Also has 2 wraps of fire blanket in the liners side cavity. 5 layers of fire blanket to outside of outer pot inside metal (steel jacket)

Tried uploaded the graph.............bugger didnt work & not sure how to do it

Steve :-[
Just confirmed model is the same as Gras, CKF5 and it was plugged directly into the wall socket, standard dual 10 amp job.

**Gra** · 23 March 2010, 10:04 PM

Re: My new KKTO - learning to use it!

Originally posted by 1E1A3C2525203F2827490 link=1258419890/136#136 date=1269303877

Please leave the preferences as default in the software including the max time to graph so they all have common arcs when we compare them....

Save them as a good quality image at 640 x 480 and post em up here and we can compare......graphs lol

I really appreciate any help you can offer in this experiment Wink

Ill go do mine now and post it in 25 mins Wink

OK this is a dry run cold start full power to element cut out no beans , Climb rate up to 78Cmin temp reached when cut out 289* I didnt let it run on like you asked as there was lot of smoke from old coffee oils..

I turned off the TO and let it run down off the graph, Now my basket is 240mm x 115mm high --TO--TYPE-- COOKING ESSENTIALS --AIRFLO MODEL CKF5...1400watt 240v--50Hz 4 m 15amp lead direct every thing else run from another GPO and power board , Insulation is a fire blanket wrapped around and held in place with silver lined freezer bag as you know my unit is powered by bread maker base my agitator is one sided aluminum tube ....Hope this helps ...

Gra..

**WSullivan** · 23 March 2010, 10:22 PM

Re: My new KKTO - learning to use it!

Cheers guys, there are already some interesting findings!

here is monos, note the different temps at which the tstat cycles off, monos at 224C, Gras at 289C!!!!

[media]http://coffeesnobs.com.au/YaBB.pl?action=downloadfile;file=screenshot_studio _capture__44test2-web.jpg[/media]

**Mono** · 23 March 2010, 10:27 PM

Re: My new KKTO - learning to use it!

Originally posted by 3430160F0F0A15020D630 link=1258419890/148#148 date=1269339765

Re: My new KKTO - learning to use it!
Reply #148 - Today at 9:22pm Mark & Quote Quote
Cheers guys, there are already some interesting findings!

here is monos, note the different temps at which the tstat cycles off, monos at 224C, Gras at 289C!!!!

Ta, WSully, not sure about the temps as per the data logger as I seem to get to FC @ about 185 ish. When I first tried an empty run I used my other non-logging DMM and it was reading temps of 270-280c??

Steve.

Tommorow I will cut the centre out of my elemnt shroud.

Announcement

My new KKTO - learning to use it!

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment