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