The sulfur oxide monitoring device 62 sends a signal to controller 64 wherein this signal is compared to {HEAD ~ a set point signal} 66, which in {TAIL ~ this case} would represent a preselected sulfur oxide emission level known to be below that required by local air pollution regulations 
in
The sulfur oxide monitoring device 62 sends a signal to controller 64 wherein this signal is compared to { HEAD ~ a set point signal } 66 , which in { TAIL ~ this case } would represent a preselected sulfur oxide emission level known to be below that required by local air pollution regulations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH