I am using the E5062A Network Analyzer and I am having trouble with my labview program. To start off I will try to explain what the program is supposed to do. The program is supposed to run our TestEquity 1007C Temperature Chamber through a ramp cycle and collect data (screen images on the network analyzer) at different temperatures after dwelling for a certain amount of time. My program works perfectly until I get to the Elapsed Time loop that I have created. Some time into this loop (usually between 60 and 120 minutes) the product I am testing completely loses calibration. I will attach multiple screen images to try and show what is happening. Any help is greatly appreciated. The image I have attached here is a normal image when calibrated.