Dave from Denver
TVWBB Wizard
Hey guys,
I posted my sous rig in a couple places here on TVWBB and I also mentioned in one of those threads that there were some bugs with the system as built. Namely, the thermocouple is picking up electrical signal noise from the heating elements.
I also, while cooking some veg at 85C the other day, noticed that both the the submersible pump and the acrylic mounting bracket were struggling with the heat. So to avoid the inevitable pump or bracket failure and downtime or danger, I've decided to switch my design up.
My new plan is to use an aquarium air pump to drive an air stone or two in the water container.
I also replaced my thermocouple with a waterproof one from lightobject which should work better, in theory.
Since I've now got an extra thermocouple (PT100), a PID, a solid state relay, and an air mover, I was thinking this could be adapted pretty easily to a homebrew ATC system. It should be easy to swap the heater assembly in the current sous vide rig with an outlet, and then re-mount the heater assembly by itself with a plug.
Has anyone used an aquarium pump to drive a 18" WSM before?
I see that several members posted about using PID's to control a blower for the WSM. My PID (JL612) has an autotune feature, but any input as to proper settings would be welcome as well (although as I write this I realize it depends on the strength of the fan).
I'll post some updates as I work on this project.
I posted my sous rig in a couple places here on TVWBB and I also mentioned in one of those threads that there were some bugs with the system as built. Namely, the thermocouple is picking up electrical signal noise from the heating elements.
I also, while cooking some veg at 85C the other day, noticed that both the the submersible pump and the acrylic mounting bracket were struggling with the heat. So to avoid the inevitable pump or bracket failure and downtime or danger, I've decided to switch my design up.
My new plan is to use an aquarium air pump to drive an air stone or two in the water container.
I also replaced my thermocouple with a waterproof one from lightobject which should work better, in theory.
Since I've now got an extra thermocouple (PT100), a PID, a solid state relay, and an air mover, I was thinking this could be adapted pretty easily to a homebrew ATC system. It should be easy to swap the heater assembly in the current sous vide rig with an outlet, and then re-mount the heater assembly by itself with a plug.
Has anyone used an aquarium pump to drive a 18" WSM before?
I see that several members posted about using PID's to control a blower for the WSM. My PID (JL612) has an autotune feature, but any input as to proper settings would be welcome as well (although as I write this I realize it depends on the strength of the fan).
I'll post some updates as I work on this project.