I recently purchased an RCBS Pro Melt and am wondering about the temperature fluctuations. I know it has a thermostat built in, but is there any way to fine-tune its temperature response?
I was casting yesterday with the pot set at about 700 degrees. My digital thermometer was showing temps as high as 740, then dropping down to about 650 before climbing back up to 740. It repeated this cycle the whole time.
If there is no way to fine-tune the thermostat, can it be bypassed so that the Pro Melt could be PID controlled?