This is skilled journeyman work in the installation, repair and maintenance of water and sewer treatment plant instrumentation.

Employees in this class are responsible for the installation, maintenance and repair of electronic, pneumatic, mechanical and electrical types of metering, control and recording equipment used in large water and sewer treatment plants. Work is performed in accordance with standard practices of the electrical and electronic trades and requires a knowledge of the mechanical and operational aspects of equipment monitored through instrumentation. Incumbents must use special electrical tools such as voltmeters, ammeters and oscilloscopes. Assignments are made either orally or through written work orders and may be accompanied by diagrams or blueprints. Supervision may be exercised over subordinate skilled and unskilled employees. Technical supervision is received from a superior who assists with unusual or difficult problems and evaluates work for satisfactory functioning of treatment plant instruments.

ILLUSTRATIVE TASKS

Installs, alters, repairs and maintains special metering, control and recording instrumentation equipment utilized in water and sewer treatment plants, water pumping stations and distribution systems; inspects and diagnoses technical instrument problems; locates and adjusts defects in instruments.

Uses special electric and electronic tools and equipment such as voltmeters, ammeters, insulation testing meters, industrial analyzers and oscilloscopes.

Maintains records of time and materials used in installing and repairing instrumentation and maintains repair history of metering, control and recording equipment.

Requisitions supplies and materials necessary for instrument repair.

Performs related work as required.

KNOWLEDGES, ABILITIES AND SKILLS

Considerable knowledge of the standard practices, methods, tools, and materials of the electrical and electronic trades.

Considerable knowledge of special methods, techniques and tools used in the repair, maintenance and installation of water and sewer treatment plant instrumentation.

Considerable knowledge of the mechanical and electrical equipment used in large water and sewer treatment plants and related facilities.

Knowledge of the occupational hazards and safety precautions required when working on controls for high voltage electrical systems and equipment.

Ability to locate and diagnose defective water and sewer plant instrumentation.

Ability to work from diagrams and blueprints and to understand and effectively carry out oral and written instructions.

Ability to use precision test equipment to repair, maintain and install water and sewer plant instrumentation.

Skill in the care and use of standard and specialized electrical tools and precision test equipment.