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renatoa
03/25/2024 12:38 PM
coffee drink, Ramper?

allenb
03/24/2024 12:10 PM
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renatoa
03/23/2024 3:02 PM
welcome cup, andrewg

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03/21/2024 5:10 PM
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03/21/2024 5:08 PM
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New from GC I'm looking for the starting profiles
renatoa
Hmmm... difficult to count such spaghetti... an ohmmeter must be used.

They should foreseen this issue and design the heater for an average voltage, 230V, which is actually the de facto standard...
 
pandiani
I contacted the seller who told me that he will contact Gene Caff? for greater clarity, but he also told me that he intends to send one 230 volts for free, but wants back the 240V one. It seems very correct, considering that the mistake was mine at the start.
Do you think I can solve 100% with one at 230Volt?
Will I finally have a GC with the temperature like yours?
Edited by pandiani on 09/24/2018 4:20 AM
 
renatoa
230 vs 240v is only 10% loss... still not full power, but better.
The temperature should be enough at 1200W... the 1500W blower that I moded output was way more than 300 C degrees, and needed a massive voltage drop, to 72% power, in order to calm it down to 270 C.
If Gene seller was been so kind I would bite the offer, and would take the replacement dismount opportunity to place a TC in the hot air path.
The input temperature would help me more to drive a roast than the exhaust.
 
pandiani
Now I wait for the new heater to send me, and when I open the GC I would like to put a TC in the hot air route as you say.
I have a K-type TC where do you advise me to put it?
 
renatoa
Wondering what is the thing looking similar to a probe, in the video, connected with two blue leads... it looks like a TC, but could be a thermostat also, to detect overheating, if the airflow is reduced for whatever reason.

Anyway, somewhere in the neighbourhood of that "probe" I would place mine too.

Lots of inspiration here:
http://roasthacke...page_id=29
 
pandiani
Interesting, in practice slightly floods the heater inserts the probe wire K and closes again. But I can not use RTV because it warms them up too much. What temperature will we have incoming? My probe K reaches max 300 ? C.
I have this:
pandiani attached the following image:
screenshot_20180925-080031.png
 
renatoa
270 C is advised as a maximum safe for coffee:

forum.homeroaster...post_65027
 
pandiani

Quote

renatoa wrote:

270 C is advised as a maximum safe for coffee:

forum.homeroaster...post_65027


So my probe, maybe it does not burn :-)
5-7 working days for my new element to 230V
 
renatoa
The probe itself is rated to at least 400, typical 7-800, the cable insulation is fiberglass, so no worries.
 
pandiani

Quote

pandiani wrote:

Interesting, in practice slightly floods the heater inserts the probe wire K and closes again. B


So RTV is not good because it does not withstand these temperatures, but if I want to put a sealant that holds high temperatures what could I use? (why not let the heat dissipate)
 
Ozo
The Permatex Ultra Copper hi temp rtv $7.41 3 oz. is rated at " 700F (intermittant) " Thats 370C
https://www.amazo...B0002UEN1A
Edited by Ozo on 09/26/2018 11:01 AM
Tim


"Espresso is a miracle of chemistry in a cup."
Andrea Illy
 
renatoa
I get sealant for roasters build from auto shops, rated at 300 C.

https://mannol.de...aker%20Red
 
ChicagoJohn

Quote

Ozo wrote:

The Permatex Ultra Copper hi temp rtv $7.41 3 oz. is rated at " 700F (intermittant) " Thats 370C
https://www.amazo...B0002UEN1A


That's what I've used and never had a problem.
So many beans; so little time....
 
pandiani
in the meantime I opened the GC
Simple to open, I checked, if necessary, that the heater was 240V
pandiani attached the following image:
foto_gc.jpg

Edited by pandiani on 09/26/2018 1:20 PM
 
pandiani
it seems that the first shipment went bankrupt. Next week, they'll send another one. I hope this arrives
 
renatoa
Lost in transit, or what you mean by bankrupt ?
 
pandiani
In the sense that it never arrived to me (lost in trasit)
Failed arrival, no bankrupt (sorry wrong term)
 
pandiani
When the 230V heater arrived, finally the times and temperatures correspond to most of the profiles I have read. The crack are clear and many, unlike before I heard a few and isolated, the chaff is consistent but above all my roasted beans no longer have flakes of chaff not detached. Finally now I can say I have a roaster
 
renatoa
May the crack be with you ! Grin
 
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