if a difference between said second intake temperature and said first intake temperature is less than {HEAD ~ a calibration temperature change}, waiting for {TAIL ~ a period} of said temperature sampling interval 
if a difference between said second intake temperature and said first intake temperature is less than { HEAD ~ a calibration temperature change } , waiting for { TAIL ~ a period } of said temperature sampling interval
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH