Douglas Henke is the maintainer and primary author of this site. You may contact him by email to: dhenke@mythopoeic.org
If you are selling search engine optimization, ad banners, product placement, link exchanges or anything of a similar nature: I don’t want it or need it, and I won’t respond favorably to your pitch. Save us both some time and go elsewhere.
Please use plain text for email. HTML email will be discarded unread. Attachments in proprietary formats (such as Word documents) will be mocked in public before being discarded unread.
From time to time, other folks may also post articles. Such articles reflect the opinions of their authors; they are not site policy and do not necessarily reflect the opinion of the maintainer. Contributors may, at their option, provide their own contact information; follow the “Posted by” link at the top of the post to see if a particular author has done so.
Hello,
I recently built a sous vide setup similar to yours with the JLD612 PID controller and a PT100 thermocouple. The temperature offset on mine is not constant. It may be 2 degrees off when set to 100 degrees. Then it may be 8 degrees off when set to 130 degrees. Is this similar to what was happening to you before you grounded one of the PT100 leads to the sheath? Although my PT100 is cased in a waterproof plastic, I’m thinking I may be able to ground one of the blue PT100 connections to the ground bolt on the outlet. Any insight into this?
Thanks,
Branden
I’m not sure it’s the same problem. What you’re describing sounds like a constant offset. What I was seeing was rapid variations. (If the actual water temperature was 130F — as measured by another thermometer — my display would “bounce” between 130 and 133 every few seconds.)
On the other hand, I don’t see how grounding one side of the thermocouple would hurt anything, so you might as well try it.