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