Isolator isolate the field signal form receiving instrument& converted the signal in standard instrumentation signal compatible to commercially off the shelf automation products. With the help of isolator the common mode voltage at field side is rejected & prevent from ground loop problems. Isolator protect the expensive systems from high voltage faults on the field side. Isolator have the multiple output so, it can work as a signal distributor if required. Isolator are available in two type 1)Single/Dual output 2)Three/ Four output. Isolator have 9000 U modal which have three port isolation. Support AC/DC Aux. supply. & Have excellent long term stability. Application Chemical plant Natural gas plant Gas refilling station Oil & Gas plant Petrochemical industries Hazardous places Automation field Use as a distributor of signal