This application appears to be a 'thermal analysis' piece of instrumentation where the temperature is varied in a linear manner and the results monitored as to temperature and some other varialable (viscosity). I have worked in this field for many years and you should prepare for a diverse set of tasks; resolution,accuracy,precision,polynomial correction of sensor nonlinearities, stray thermocouples everywhere, balanced # of via's on the pcb's, all solder from the same roll, and most of all cold junction compensation, as this too must be to the same or greater accuracy,precision,resolution etc,etc

You are about to venture into another world! I know, I work there.
Tom Burdick