b) {TAIL ~ the moving range} exceeds {HEAD ~ a predetermined threshold} between 0.5 and 1.3° C., that extends across two to five adjacent thermocouples; and 
b ) { TAIL ~ the moving range } exceeds { HEAD ~ a predetermined threshold } between 0.5 and 1.3 ° C. , that extends across two to five adjacent thermocouples ; and
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH