Receives, inventories and catalogs instruments for calibration according to construction schedule; sets up calibration and loop files; checks on installation of instrument loops; coordinates and runs (or assists) in loop checks, to include checkout with computer as required; maintains installation and completion records; keeps loop drawings, installs air tubing and control tubing runs, works start up following start up procedures; inspects meters, indicators and gauges to detect abnormal fluctuations; test accuracy of flow meters' pressure gauges, temperature indicators, controllers, radiation counters or detectors and other recording, indicating or controlling instruments to locate defective components in the system; removes defective instruments from system and decontaminates, disassembles and cleans instruments and replaces defective parts; lubricates instruments and replaces defective wiring and tubing; keeps loop drawings, installs air tubing and control tubing runs, works start up following start up procedures. Must be familiar with the following: transmitters, switches, analyzers, PH and Conductivity probes, programmable controllers, proximity devices, level control systems, control valves, equipment and personnel safety systems, electrical distribution systems, transformers, single phase motors, three phase motors and motor drives and controls.