Curious if there’s any commercially available products that could fulfill this. TBH I think the request is ridiculous if you bother to understand that there’s no way that undecarbed material is going to make it thru a process that follows shortly after (distillation), but it’s not a bad process accountability idea.
Setting up a CO2 lab that’s trying to get GMP and local pharma regulation certified and an early meeting/tour with inspectors suggested that there was no way to verify that the decarb ovens had actually hit the process set value. Inspector would really like a machine that makes a log or a printout (like some autoclaves are equipped with) though I have yet to see a vac oven fitted in such a way. To say nothing that if you push past that, the only thing you can trust to say that biomass that was cooked in the vac oven was cooked for correct amount of time and vacuum depth is the logs of the people running the show…apparently they don’t want to trust that the people running the lab aren’t falsifying logs and ignoring SOP’s (facepalm)
Now, to complicate things a bit, there are 2x AI ovens like this: https://www.acrossinternational.com/250c-ul-certified-7-5-cf-vacuum-oven-w-5-shelves-sst-tubing.html which means 5 channels per oven to monitor/record and 10 channels in total, plus another SH scientific oven with 5 more channels, for a grand total of 15 (guessing type K or J thermocouple) channels to monitor for data.
And ideally, we’d put some sort of datalogger in the middle, between the PIDs that control the heating elements in the 3 ovens, and without adding 15 more thermocouples into the ovens themselves. If it was just logging 15 channels, I’d call up Omega and get a suitable RDXL or similar data logger, but I think we’re going to have problems if we piggyback on a signal going to both a datalogger and a PID, given the incredibly tiny voltage outputs we’re talking deriving a value from here