I'm rebuilding an old environmental chamber. It has a heater and a 2-stage cascaded refrigeration system. The heater/cooler works fine but the ancient electronics is falling apart.
I'd like to scrap all of the electronics and use one of those cute little panel mount controllers with a K thermocouple. I know there's a zillion of them out there and I know where to find them. I'm looking for firsthand experience using a specific model. I can use a bang- bang solid state relay to control the heater or I can take 4-20ma and proportionally control it's voltage.