One of the most important role of a field operator is to monitor and inspect all rotating equipment for any abnormalities. This include checking for abnormal sounds, lube oil levels, motor load, suction and discharge pressures ,and suction strainer DP. If any Abnormalities are found the field operator must inform to the panel operator to raise a work order.In addition to equipment monitoring, a field operator must inspect all instruments and control valves for any issues. This include checking for hunting, gland leaks, instrument air leaks. The field operator must also compare local gauge readings with respective transmitters and inform the panel operator of any deviations or abnormalities.another important role of afield operator is to collect samples and send them to the laboratory for analysis. base on the results the field operator must adjust the chemical dosing.