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