{TAIL ~ The set up circuit} automatically sets up {HEAD ~ the welding machine} in response to what the sensor senses 
{ TAIL ~ The set up circuit } automatically sets up { HEAD ~ the welding machine } in response to what the sensor senses
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH