Why do an Oven HealthCHECK™? Why Calibrate Instruments? Posted on Jan 27, 2010 Why do an Oven HealthCHECK™? Why Calibrate Instruments? You might ask, why should I perform an Oven HealthCHECK? In other words, why should I run a rather sophisticated measurement system through my oven to produce a rather nice looking 3-D plot of the cross belt temperature uniformity? Continue reading