Now connect the two ring terminals on the PID power cord to PID controller connectors 1 and 2. Again, to do this: unscrew the connector, insert the ring terminal, and putthe screw back in.
Attach the free end of the SSR control cord to PID terminals 6 and 7, loosen the screws, insert the spade terminal, and tighten the screw again. The wire from SSR terminal 3 should go to PID terminal 6, and the wire from SSR terminal 4 to PID terminal 7.
Finally, attach the Pt100 wires to PID terminals 8, 9, and 10. If the Pt-100 has three wires, connect the red, blue, and yellow to terminals 8, 9, and 10 respectively. If your Pt100 has only two wires, connect the red and blue to 8 and 9, and then connect 9 and 10 together with a short wire.
One thing we noticed is that the Pt100 probe gives some wonky results if the back end gets even a little wet, we wrapped it up in duct tape and electrical tape to avert this. Perhaps a better idea is to put the entire probe inside a finger of a latex glove, as we did in the DIY cheese vat
You should also update your PID settings
to save time heating up your water bath.