 Performed Maintenance of All kinds of Field Instruments (Transmitters, control valves, flow tubes, RTDs, Thermocouples, Vibration switches, pressure switches and gauges etc. I handled all types daily routine vise complains. Performed Calibration, installation and troubleshooting of valve Positioners. (Fisher, Masoneilan, Nuova Pignone, DVC6000, Neles and SVI II). Performed Calibration and installation many kinds of Pressure Switches and level switches. Adjustment and gap calibration of vibration switches, Adjustment of probes (Axial, Radial, and keyphasor, speed probes active & passive). Daily routine vise PM and CM jobs handling complains. Performed Calibration of All Field Instruments with Hart Protocol of transmitters, control valves, temp and pressure gauges, pressure and vibration switch etc,such as: (Rosemount, Yokogawa, Foxboro, Fisher, Masoneilan, Nuova Pignone, Blake borough, Neles, Arca). Worked on Thermocouples J, K, L, N, R etc, RTD pt 100, pt 50, pt 200 I can read all types of drawings related to instrument.  Parameter settings of Magnetic Flow Meters Make: Siemens, Krohne and ABB Flow Meters works. Troubles Shooting. Preparation of material list for plant daily used and spare. DCS and PLC faults and troubleshooting.