A well-defined calibration program according to ISO or NIST (National Institute of Standards and Technology) is recommended or, in most instances, required. Having the oven and the profiler calibrated ensures that the data collected by the profile, and in the interest of scientific methodology, is valid and repeatable.
In addition to the calibration program, a random check of the oven, in relationship to the controller and feedback loop, can be performed using a profiler or recorder. Simply recording the observed temperatures in a zone and comparing those to the zone set point will provide the desired data.
