Espresso: Espresso Mods and Restorations PID controller temperature fluctuation Rocket R58 Double Boiler Rocket Espresso R58 Double Boiler -  Everything you need for the perfect shot! www.seattlecoffeegear.com   Not Logged in: log in updated topics   new posts   new unanswered   search   faq   sign up   Discussions > Espresso > Espresso Mods > PID controller...   view previous topic | view next topic | view all topics Author Messages Alpr Senior Member Joined: 11 Nov 2011 Posts: 2 Location: CA Expertise: Just starting Posted Tue Nov 15, 2011, 5:21pm Subject: PID controller temperature fluctuation   Hi All, Last weekend I added Watlow SD3C-HKUA-AARG + Watlow SSR to my Silvia Rancilio. I like the way it looks and the way it works. But I was just wondering what temperature fluctuation to expect. In my case I set target as 95 degrees Celsius, and the controller keeps the temperature in the range of -1 / +2.5 degrees Celsius. I am wondering what you experience is. - Alex back to top frcn Senior Member Joined: 23 Dec 2001 Posts: 2,946 Location: Northern California Expertise: I live coffee Espresso: Vibiemme Domobar Double Grinder: Mazzer Kony, Baratza... Vac Pot: Hario, 2 Cory pots, 1 Cory... Drip: Behmor Brazen, Bunn A10 mod... Roaster: computer controlled Hottop,... Posted Tue Nov 15, 2011, 5:38pm Subject: Re: PID controller temperature fluctuation   6 degrees F swing is a pretty wide dead band for a PID'd Silvia (if memory serves). Did you run the auto-tune program (I think they call it "TRU-Tune")? What thermocouple are you using? If it is slow to respond, that could account for it. Did you use heat transfer paste between the thermocouple and the boiler? Maybe move the thermocouple to a different location on the boiler...?   Visit My Website www.EspressoMyEspresso.com back to top Alpr Senior Member Joined: 11 Nov 2011 Posts: 2 Location: CA Expertise: Just starting Posted Tue Nov 15, 2011, 8:07pm Subject: Re: PID controller temperature fluctuation   Autotune did the trick :-) I did not know about this feature. Thanks, - Alex back to top view previous topic | view next topic | view all topics Discussions > Espresso > Espresso Mods > PID controller...   updated topics   new posts   new unanswered     search   faq   sign up   Not Logged in: log in Discussions Quick Jump: Select Espresso Discussions --Espresso Machines --Lever Espresso Machines --Grinders - Espresso --Espresso Mods and Restorations --Espresso Blends --Questions and Answers --Latte Art and Etching --Barista Jams Around the World --General Discussion Coffee Discussions --Machines and Brewing Methods --Home Roasting Talk --Questions and Answers --General Discussion Columns, How-Tos, and Reviews --Holiday Gift List Feedback --CoffeeGeek Columnist Feedback --Detailed Review Feedback --Products First Look Feedback --Quickshot Review Feedback --Guide Article Feedback --How-To Article Feedback --CoffeeGeek Podcast Feedback Members Forum --Bug Reports and Suggestions --Buy, Sell and Trade --Retail Coffee Jobs Offered / Wanted Ads --Coffee Recipes --Cafe and Bean Reviews --CoffeeGeek Site Info and News --General Off Topics World Regional --United States West --United States Central --United States East --Western Canada --Eastern Canada --United Kingdom --Western Europe --Eastern Europe, Nordic Countries, and Russia --Central and South America --Australia, New Zealand and Asia Symbols: = New Posts since your last visit      = No New Posts since last visit     = Newest post Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings. Quality Espresso Machines Imported Italian Espresso Machines, Coffee Machines & accessories for all your coffee needs! www.thecoffeebrewers.com

Home | Opinions | Consumer Reviews | Guides & How Tos | CoffeeGeek Reviews | Resources | Forums | Contact Us CoffeeGeek.com, CoffeeGeek, and Coffee Geek, along with all associated content & images are copyright ©2000-2013 by Mark Prince, all rights reserved, unless otherwise indicated. Content, code, and images may not be reused without permission. Usage of this website signifies agreement with our Terms and Conditions. (0.167726039886) Privacy Policy | Copyright Info | Terms and Conditions | CoffeeGeek Advertisers | RSS | Find us on Google+