A monitoring arrangement responsive to {HEAD ~ the outputs} of {TAIL ~ the detectors} provides at least one of an output and display of the kind of abnormality detected 
A monitoring arrangement responsive to { HEAD ~ the outputs } of { TAIL ~ the detectors } provides at least one of an output and display of the kind of abnormality detected
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH