358156 hp
At large, whereabouts unknown.
I have been having an issue with inclusions in my castings for the past few days. I've been getting more and more dross on top of my alloy. My trusty PID assured me all is well temp-wise, so I went looking for other issues, contamination for the most part. And I fluxed, and I fluxed, and I fluxed. Three rounds of wood shavings, then a round of beeswax. The beeswax melted quickly, then spontaneously combusted. The PID read about 750*, and the only time I've seen beeswax burst into flame that quickly is at temps over 800*. So I unplugged my built in thermocouple & hooked up the one I use for my powdercoating oven- 825* & climbing. I tossed in my old Lyman mechanical thermometer, and it agreed with the PID, 825+. It occurred to me that the PID seemed to be hunting for temps more lately, and now I know why. I'll use my PC thermocouple until I get a new one from Auber. I need to order a few other things from them anyway.
So, verify your pot temps every once in a while with a different TC, or a mechanical thermometer, or both.
So, verify your pot temps every once in a while with a different TC, or a mechanical thermometer, or both.