The output signal of the comparator is used as {HEAD ~ an alarm signal} to actuate an alarm or {TAIL ~ a protective means} for a patient in contact with the neutral electrode 
to actuate
The output signal of the comparator is used as { HEAD ~ an alarm signal } to actuate an alarm or { TAIL ~ a protective means } for a patient in contact with the neutral electrode
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH