Skywalker roaster... | [275] |
Skywalker, the AL... | [195] |
Dereks 1-2Kg drum... | [115] |
Skywalker Roasts | [92] |
SR800/SR540 Fan C... | [82] |
thermal coupling for Via Venezia
|
|
imaroaster |
Posted on 10/09/2012 11:03 PM
|
1/4 Pounder Posts: 130 Joined: June 19, 2012 |
I can find some info on adding a pid but I think I just want to add a thermal coupling so I can watch the temps. So the question is what kind/style of thermal coupling to use and where to connect it? John |
|
|
imaroaster |
Posted on 11/21/2012 3:14 PM
|
1/4 Pounder Posts: 130 Joined: June 19, 2012 |
Bump. JimG I see you have a PID for a Silvia, what do you use for a Thermal coupler? -John |
|
|
yamhill |
Posted on 11/22/2012 9:25 PM
|
1/4 Pounder Posts: 111 Joined: December 18, 2009 |
I'm not JimG, but I too have a PIDed silvia. I use an Omega thermocouple with a bolt-on style end. Make sure that your PID can match your thermocouple type. I put the bolt-end under a thermostat mounting screw on the top of the boiler. Omega also has a variety of stick-on thermocouples. John Quest M3 w/ Artisan via ESP32 emulating TC4. Previous roasters include: IMEX digirosto 1500, various popcorn popper roasters, and Behmor. Espresso: Quick Mill Vetrano; previous espresso PIDed Rancilio Silvia. Also Chemex, Hario, and Melitta drip; Cory and Yama vacuum/siphon; bodum French press; aeropress; Mazzer Major, Hario mini, and PeDe Dienes grinders.
|
|
|
imaroaster |
Posted on 11/22/2012 9:46 PM
|
1/4 Pounder Posts: 130 Joined: June 19, 2012 |
Thanks for the reply. I'm going to connect it a thermometer with a k type connector. Is a bolt on better than a stick on? -John |
|
|
JimG |
Posted on 11/27/2012 3:03 PM
|
1 1/2 Pounder Posts: 834 Joined: October 23, 2008 |
Hi, John - Sorry to be late to the party I make/use a washer-style thermocouple sensor for Silvia's. The ring part is sized for a #6 screw. The screws that fasten the thermostats to a Silvia's boiler seem to be M3, so the #6 ring fits well. Some espresso machines use M4 screws to mount the thermostats. Gaggia, for example. For those machines I use a ring sized for a #8 screw. For my PID kits I supply type T thermocouples because they offer slightly higher accuracy in the temperature range of interest, and they are a little easier for me to make with my equipment. But type K is fine, too. Jim |
|
|
JimG |
Posted on 11/27/2012 3:04 PM
|
1 1/2 Pounder Posts: 834 Joined: October 23, 2008 |
Quote imaroaster wrote:Is a bolt on better than a stick on? -John Yes. Much better. Jim |
|
|
imaroaster |
Posted on 11/27/2012 5:16 PM
|
1/4 Pounder Posts: 130 Joined: June 19, 2012 |
Jim, are you allowed to reveal you source? |
|
|
JimG |
Posted on 11/28/2012 8:52 AM
|
1 1/2 Pounder Posts: 834 Joined: October 23, 2008 |
Quote Yes, of course. I make them in my shop. I use a small 24V capacitor-discharge welder and a carbon electrode to strike an arc and weld a bead that joins the ends of the thermocouple wires. Then I use a bit of lead-free solder to thermally bond the bead to the body of the copper ring terminal. I couldn't find any commercial products that gave the performance I wanted. They all used materials with much higher temperature ratings, which are not needed for this application. Jim |
|
Jump to Forum: |
Thread | Forum | Replies | Last Post |
---|---|---|---|
BUNN Thermal Coffee Maker - CSB3T | Preparing Coffee | 2 | 08/31/2019 11:50 AM |
Popcorn Pumper and the thermal fuse | Popcorn Popper roasting | 9 | 05/30/2019 3:50 AM |
Bottom heat and/or thermal mass | Turbo Oven Roasters | 5 | 12/15/2014 7:04 AM |
Thermal sensor Gene Cafe | Gene Cafe Roaster | 5 | 09/14/2010 11:12 PM |
thermal couple plugs | Dataloggers/Controllers/Rate of Rise Meters | 3 | 01/05/2009 3:22 PM |