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Homeroasters - Home Roasting Coffee Community » THE ART OF ROASTING COFFEE » Roasting Coffee

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Page 1 of 2: 12

Any tips for SR540?
renatoa	#21 Posted on 01/10/2021 11:28 AM
Administrator Posts: 2503 Joined: September 30, 2016	Check this SR800 setup: https://www.home-...67510.html


Mike_Mathis	#22 Posted on 09/15/2022 10:23 AM
Newbie Posts: 7 Joined: August 06, 2019	Interesting thread for sure. I realize it has been idle for a while, so I am hoping to resurrect this conversation. I have a SR540 with FR extension tube and I have been having decent results with the general profile of starting at Fan9/Heat1 and trying to hold off the temp rise to target 300�F in appx 3.5-4 min for drying and then increase temps for a 1stC at appx 7 min and drop time at 8.5 for a development of appx 20%. This is with the Amazon favorite Nicaraguan beans. The thought of regulating voltage is intriguing for certain. I wish I had seen this thread before hotfishtacos left because there are several on Amazon and some with not so good reviews. I would also like to know more about the 4000W AC110V to 220V SCR Voltage Regulator such as how do the connections work. I can see stripping wires to connect a male plug on the input and a female plug on the outlet. Is it that simple? Thanks for any replies.


renatoa	#23 Posted on 09/15/2022 3:55 PM
Administrator Posts: 2503 Joined: September 30, 2016	Yes, connection is the simplest part, as simple as cutting a wire and tighten 4 screws. Understanding some quirks is the hard part. First, these devices do not regulate voltage in the sense of maintaining it stable at output. They just reduce the voltage to some percent you set display... percents, not voltage level... if the mains is very dirty and vary wildly, identical will be the output too. Regarding the power rating, there are also some salt grains too, you can read more here: https://homeroasters.org/forum/viewthread.php?thread_id=6778&highlight=10000w&pid=75502#post_75503


Mike_Mathis	#24 Posted on 09/16/2022 12:56 PM
Newbie Posts: 7 Joined: August 06, 2019	Thanks for the link. After reading with my less than stellar understanding of the nuts and bolts of electricity, I don't believe I will be utilizing a SCR voltage regulator. Kind of disappointed because they are so cheap. Maybe I will just take a chance on one of the voltage regulators hotfishtacos referred to.


renatoa	#25 Posted on 09/16/2022 2:08 PM
Administrator Posts: 2503 Joined: September 30, 2016	Which are... ? Maybe in other thread... :? <lack of confused emoticon>


HarryDog	#26 Posted on 09/17/2022 12:47 PM
1/4 Pounder Posts: 140 Joined: July 20, 2022	Hello All, I don't know what is in the Freshroast but if it's a AC heater and DC blower then the following parts from Amazon might be good options. I have used them to control 3 modified popcorn maker based roasters so far testing different ways they move the beans. 1. Digital Motor Speed Controller PWM Stepless Governor Regulator 2. 10000W SCR Digital Voltage Regulator Module Board Speed Control Dimmer Thermostat AC 220V 80A The first thing I would change in this roaster is how the beans are moved. I don't like how they are pushed (Flubbed) right up into the chaff collector. Renatoa posted a pic of a plate in this following thread that I think would work well in these roaster. Modding the AICOOK.BMH-1202A You can see it in action in a vid from Allenb. Make the plate and screw it in from the bottom so nothing is damaged in case you don't like it. One caveat is a long enough screw so you can watch if it loosens so nothing falls down inside the roaster? Edited by HarryDog on 09/18/2022 7:52 AM

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