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Huky 500
Airhan
I/O just means input/output. Used here it means that a Phidget has no I/O or it cannot give you any control over heaters/fans motors/whatever. A TC4 or PID have I/O capabilities.
Aaron
"Grind it like it did you some great injustice!"D.L.Clark
boar_d_laze

Quote

allenb wrote:
I'm assuming that all of these require you to be plugged into your computer in order to view rate of rise and don't have the ability to view it via a small LCD on-board the datalogger. If this is the case then the TC4 is the way to view rate of rise and temps/time whether standalone or tethered to your pc.

This obviously requires one to be able and have the desire to solder a board together.


I'm not sure, but the REL mode on the 806AU and TMD 56 might be able to give you RoR. But it would require you to start pressing buttons while the beans are spinning. Too busy for me.

Computer or no computer, like a lot of people, as long as I can see a temp and a clock, I keep a running calculation going in my head. Doing so with the roast going is something which comes with practice and/or the compulsion to calculate everything. Just like soldering a board, it's not going to be the right solution for everyone.

I'm pretty sure that the combination of ways I keep track of the roast in real time -- which includes, an 806, a stand-alone timer, a computer running Artisan (for the present) AND detailed note taking in a lab book -- would be too clunky, distracting and awkward for just about everyone else.

Sometimes it is for me too. I've been doing that or something like it for ever, but am still in dithering since switching roasters. More than anything, it's knowing where to look and what to touch at an given time.

The hardest thing to integrate into the routine is the computer display. We tend to focus on a video screen and it can be hard to shift attention to whatever else needs to be done. Also part of the learning process is the need to rearrange where everything is relative to everything else to make the new setup work.

I know you already know because you've been through it yourself, but...

For someone just starting out roasting, or someone who's roasted before but is adding a lot of information equipment for the first time, the big take away should be that it takes time to get used to all this stuff and really start using it. The more practice and planning you do (plotting your ideal profile, with RoR calculated for each leg, etc., before starting the roast) the quicker you're going to learn. Even so, there's still a pretty steep learning curve involved in getting to the point where you're roasting a profile instead of letting events carry you along with them.

BDL
USRC 1lb Roaster, Chemex+Kone, Espro, Various FPs, Royal Siphon Vacuum, Yama Ice Drip Tower, Bunnzilla, La Cimbali M21 Casa, Ceado E92.
CookFoodGood
allenb

Quote

boar_d_laze wrote:

Computer or no computer, like a lot of people, as long as I can see a temp and a clock, I keep a running calculation going in my head. Doing so with the roast going is something which comes with practice and/or the compulsion to calculate everything. Just like soldering a board, it's not going to be the right solution for everyone.
BDL


Well said and you're right that some are able to multitask and check in from time to time to do a mental calc and are in good enough control of their machine for it to not run away before the next calc but others, including myself, never really master it and it can be frustrating especially when other things distract like my dog dragging off a very important part I carelessly left on the floor nearby and, after retrieving the part, my mental calculation is gone and by the time I'm able to let enough degrees tic by to formulate the next calculation I find the roast is too far off to do a smooth recovery and so it gets over corrected with resulting yo-yo for a while. OTOH, with real time RoR displayed, I've only got to take a glance and immediately know how much of a micro tweak I need to make and I can concentrate on other areas of the roast.

It's really too bad that real-time RoR is such a rare commodity. I decided to interrogate the staff at Omega today to see if they new of an off the shelf temperature meter that displayed rate of rise and all of them including the data logger experts said no dice and had never ever heard of one that could do this. They suggested I buy an expensive programmable logic controller (PLC) and develop a program to create the function. I said thanks for the advice but I'll pass on that one!

Allen
1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana
KCbean
Hey guys, Ive got my roaster and Ive got my Phidget, Now I cant figure out how to correctly plug my roasters probes to the phidget and get artisan 7 to read it
marce
On the Phidget connect your probes on the green strip. connect to your pc. In Artisan, Config, Device assignment, Meter. set to Phidget 1048 or 1046 what ever your Phidget is.

Should work...
you may need to download the drivers from Phidget

http://www.phidge...em_Support
KCbean
Artisan says that Phidget 1048 sensor is not attached and that error keeps flashing above the roasting graph. I think Ive downloaded all of the stuff, and my devices recognizes my phidget is attached, just not artisan.
marce
I'll let someone else help you out as I have no issue with that combo...

One thing I would try is to re-install Artisan and the 1048 drivers maybe?
sorry I can't be of any help...
Marce
KCbean
Uninstalled it all and back in and Now ive got temps on Artisan Thanks Marce
marce
glad it worked!
az erik
I just ordered one as I can't take it anymore. woohoo

Setting up a permanent roasting spot in my garage. Wife's even on board with this one.
Ginny once I have it set up you could come check it out if you like, well also goes for anyone that wants/can drive to Chandler AZ.
az erik
After getting my start with a popper and different length extension cords I moved up to a Bemhor. Then from the Bemhor to a Hottop B. Then Hottop B with TC4C and Roastlogger. Now I have moved up to a solid drum 500g gas fired machine and um wow. I only got to run 4 pounds through it last night, I have a learning curve with the machine and Artisan, and with dealing with larger loads/smoke!

The machine it's self is very simple. It's well built and has a few things I am really starting to enjoy, like the trier and gas. With the solid drum config and the 72 rpm motor it's pretty quiet and compact. Over all the machine is stunningly small. Just barely larger than the HT, but with tons more moving parts, fans, ducts, pipes, screens, etc. The move from electric to gas was a night and day eye opener. One thing for sure is airflow makes a big difference in the machine behavior.

The gauge on the front of the machine is in C and is for the drum. It doesn't react as fast as I'd like and the conversion to c/f in my head is very slow. Though I do find myself using it to get a general understanding of where the drum temp is I do use a MET probe with the Center301 dual thermo running USB to my laptop -> Artisan. I had read a couple of other statements about MET 'ceilings' being around 500f before tipping occurred. I didn't witness this last night as I had accidentally run one roast well into 625f MET. I rocketed right into 2c on that one, WAY early. 1c started around 3:30! Whoops, I'll try to drink it anyway.

Airflow is something neat and it appears in my case really needed. Due to using a 15kBTU Iwanti burner the flame on full gets sent out the sides of the Huky, The side vents were quite red twice. If I bump the fan to 30/40% via a Variac it actually pulls the flame up. This in turn causes MET to rise and the internal drum temp to rise about 2f/sec. Pumping the fan to 50% causes a rise of about 4f/sec MET. Without airflow the drum and MET rise quite slowly. Sadly I did not find a way to drop the MET or drum temp fairly quickly. Cutting the fire totally and ramping the fan to 100% started a MET drop about 30 seconds later.

I am very happy with this little machine and look forward to many more roasts with it. I did use almost a full 8oz of butane in 50 min of running the roaster, this is good for me as I plan 4 to 6 lbs in a roasting day. Clean up of the machine is easy so far as I only have 4 roasts on it, but it does drop chaff on the burner, which randomly flamed up.

Second roast was a success
dl.dropboxusercontent.com/u/14475527/Artisan2nd.png
Drop actually happened at 2min. I have to find the shortcuts for Artisan

The 4th roast kinda got out of control, lots
dl.dropboxusercontent.com/u/14475527/Artisan4.png

No pics of the actual machine yet, was too busy running back to back roasts haha. ET/BT are reversed on these.

The machine and I are in Chandler,AZ if anyone wants to take a look, run a roast let me know.
MaKoMo


ET and BT have to be swapped. Either physically by switching the probes, or in the software using the ET<->BT flag under Extras. All annotations like CHARGE, TP, DRY, FCs,.. are annotated at the BT curve
az erik
I could have swore I swapped them on the second roast, even looked again today and swapped them back. The spikes in the 1st pic is from me unplugging them and plugging them back in. I didn't have time at lunch to run a roast but will try to torch this 1.5yr old decaff later tonight.


Fit's on top of a small rolling toolbox with enough room for the fan and laptop.
dl.dropboxusercontent.com/u/14475527/Photo%20Apr%2016%2C%201%2002%2055%20PM.jpg

Little chaffy
dl.dropboxusercontent.com/u/14475527/Photo%20Apr%2016%2C%201%2003%2001%20PM.jpg but considering that's all from 4 #'s it's still almost cleaner than a Hottop after 3 roasts.
Edited by az erik on 04/16/2014 3:22 PM
az erik
Ok kept flipping the probes around as it didn't make sense to me the BT probe would read higher but it seems common. Swapped the probes during this roast of some nearly 2 yr old decaf. My burner is still too powerful. I've found about 1/2 'throttle' with a 15% fan works pretty well. I don't have the plumeting MET's others seem to, but that's usually because I have too much heat applied. I'm sure the first few pounds are going to taste like fresh cut grass or cedar.
dl.dropboxusercontent.com/u/14475527/decaf%20too%20fast.png
400g loads last night, Backed off the fire big time. Now that I can see a ROR and the digital temps I'm getting better control of this machine.
dl.dropboxusercontent.com/u/14475527/Mexico%20pretty%20good.png
allenb
Thats a beautiful roaster!

Your last roaster scope log is looking pretty nice although you'll probably get tastier results by stretching start to 300 BT.

Some Huky users are using burners that allow the use of a gas pressure gauge. Is that possible with the burner you're using? A pressure gauge allows one to accurately dial in power levels during the roast versus coarse adjustments.

Allen
1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana
Contrabass_Bry
Erik,

I'm sure you'll enjoy it. Yes, it's not without it's quirks. But for the price, it's a pretty sweet deal.
JasonMck
AZ Erik,
Just wondering where you picked up the gas burner?
i'm about to receive my Huky 500 and was looking for an alternative to the stock burner?
JasonMck
Sorry the name Iwatani on the front was a quick google for my answer

Thanks
az erik
Yep the second roast did go over quite well in Maui this last week. I lied and swapped it in place of a expected Kona a friend bought while on Oahu, he never noticed. I was actually causing myself more roasting issues by attempting to "step on the gas" to recover from the charge temp drop, it's not actually needed with this burner as the burner is convective as well.

I'll be building a fan housing and hanging the fan off the side of the cart. This should allow me to dump and just swing the 'exhaust pipe' out of the way rather than pull it when I dump the beans.

The funniest thing is actually realizing the size is about that od a Hottop. I was expecting this big box and having to clear all this space. I pretty much am able to work in a corner and very quickly.

Allen i can't use the gas pressure as it's an internal can that direct fits to the knob. For now I'm using a MET probe at the top edge of the roaster body. Thats the ET probe on Artisan. I was using the fan and fire to keep it around 450 after the charge. Which was a bit of a juggle really. It looks like I can hit a turn around time under 2 min very easily and can actually drag out the time to 1c if I stay off the gas. I'm going to see how a 500g load will come around without bumping the gas all over.

I was in Maui for the last week and actually sitting there going "man I wish I could roast, I can't wait to roast again.." in Maui... I did have a pair of toddlers in tow :)
az erik
Found some different ways of getting into 1c slower (cut flame and crank the fan, it ups the ror to 25deg F for about 25 seconds, then 20, 15, 10) some roasts I have to refire the burner to bump the heat back into the beans as I've seen it drop to 4 degrees ror at points.

Nice thing is with the Iwanti 15k btu burner I run the flam at about 1/3rd for most of the roast. This actually nets me 6 lbs (1.5 hours) roasting time off one can of butane.

I roasted up 6 lbs last night and got much better results. Though trying to get the ROR and air flow under control is taking a reverse thinking to the HT's 'just crank the fan' technique of reducing the ror.

This burner does require a different thought process as it's got a lot of convective heating possibilities and way more than enough power.

dl.dropboxusercontent.com/u/14475527/Mexico%205th.png

dl.dropboxusercontent.com/u/14475527/Guat%206th.png

dl.dropboxusercontent.com/u/14475527/Yerg%208th.png
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