Cable laying and conduit routing. Fabrication of instrument piping, mounting stand, support and impulse lines. Installation & testing of instrumentation & control devices panel boards and field junction boxes, pressure transmitter, temperature transmitter, level/flow transmitter, motorized valves, control valves, shut off valves (on/off), analyzers and gauges, switches. Calibration of field instruments. Installation of control & marshalling panel racks and relay cabinets. Loop checking – cold loop check a hot loop check.