A part of the signal processing circuit connected to the probe is isolated by {TAIL ~ an isolation circuit} to secure {HEAD ~ the safety} 
A part of the signal processing circuit connected to the probe is isolated by { TAIL ~ an isolation circuit } to secure { HEAD ~ the safety }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD