Tests 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 system, using test equipment, such as pressure gauges, mercury manometers, potentiometers, pulse and signal generators, oscilloscopes, transistor curve tracers, and ammeters, voltmeters, and watt-meters. instrumentation to include pneumatic, electronic and digital equipment; fault analysis of hardwire relay logic, motor control circuits, motor power circuits (120V to 480V 3phase) and common utility / lighting circuits; installation of new control circuits, modification of existing instrument/electrical systems as requested, to include design, load and Implementation of new control logic; fault analysis of PLC based systems with control logic modification if required.