Timing Calibration Requirement in AMS2750H, NADCAP

[ALCarr]

Good Morning. I'm wondering how heat treaters who must meet AMS2750H section 3.2.3.14 and Nadcap AC7102/8 section 4.4.2 comply with these requirements for a digital recorder used for temperature uniformity surveys. Our heat treat furnaces are connected to a data acquisition system run on a network PC that is time-synched through a NIST-connected server, but I am unsure how to physically implement the timing calibration requirement for a digital recorder. Thanks for any help anyone can offer.

 

[Big Jim]

How often do you perform furnace surveys and temp sensor calibration? Why? Answer those two questions and you should have the answer to what you are asking.