Metropolitan Water Reclamation District of Greater Chicago

Elec Instrument & Test Mechanic Leadman (#20007424)

General Statement

Under supervision, performs skilled manual work in the repair and maintenance of plant process control equipment, power distribution systems, voice and data communication networks, including telemetry, and directs the work of assigned Electrical Instrument and Testing Mechanics.

Essential Job Functions

Essential job functions are fundamental, core functions common to positions in a classification. They are not intended to be an exhaustive list of all job duties for any one position in the class. Since class specifications are designed to be descriptive and not restrictive, incumbents may complete one or all of the job duties listed or tasks of similar kind not specifically listed here.

  • Performs first-line supervision of assigned Electrical Instrument and Testing Mechanics. Plans, schedules, directs and inspects the work of subordinates according to the approved instructions, standards, plans and specifications of the job.
  • Makes estimates of material and labor required to complete work assignments; requisitions material, supplies, tools and equipment required for the work and maintains accurate records of time spent on jobs.
  • Performs skilled tasks in the repair, calibration, commissioning, configuration, testing, and maintenance of process instrumentation.
  • Utilizes a variety of test equipment to analyze and troubleshoot power distribution, process control and communication systems.
  • Repairs and calibrates various instruments or analyzers used in measuring water level, precipitation, temperature, rate of flow, ph, dissolved oxygen, density, steam quality, power, air quality, vibration, proximity, cable location, and water quality.
  • Repairs and maintains equipment used in transmitting and receiving signals used for plant process control.
  • Maintains and repairs measurement sensing units.
  • Troubleshoots, repairs and maintains protective relays and portable radios.
  • Checks breakdown voltage characteristics on insulators, cables, and other circuit components.
  • Uses hand tools and equipment required for detail work that are common to this trade.

Other Job Functions

  • Is responsible for the custody and care of all tools and equipment used in performing electrical instrument repair and testing.
  • Performs other duties as assigned.

Environmental Conditions

Typical duties involve exposure to industrial equipment or operations including working near operating mechanical equipment and loud noise. Duties may also involve working in close proximity to or in conjunction with construction activities. Work may be performed in a variety of weather conditions and may involve working in confined spaces or at heights. Duties could include contact with hazardous or toxic materials and exposure to noxious odors. Some positions require the operation of a District vehicle.

Desirable Knowledge, Skills and Abilities

  • Considerable knowledge of the operating and repair procedures of a wide variety of electric, electronic, or mechanical process instrumentation, including fiber optics and radio communication devices.
  • Considerable knowledge in testing and calibration of equipment and relays for power distribution systems.
  • Considerable knowledge of the occupational hazards and safety precautions associated with the work, relating especially to low, medium and high voltage equipment.
  • Skill in the operation of computers necessary to perform equipment configuration, maintain essential databases, and data entry to document work done and materials used, as well as to perform record keeping, prepare reports, plan, schedule, and coordinate work at several work locations in a manner conducive for the best possible use of District resources.
  • Skill in the repair and calibration of process instrumentation and automated systems including programmable logic controllers (PLCs).
  • Skill in the use and care of the equipment and tools of the trade.
  • Ability to communicate well orally and in writing in the dissemination of information and instructions.

Minimum Qualification Requirements

Graduation from a standard senior high school or the equivalent and five years of experience in the repair and calibration of electronic process instrumentation.


Additional experience may substitute for the required education on a year-for-year basis. Each completed course or recognized formal training program in process instrumentation may substituted for four months of the required experience. Completion of two years of college level course work in process instrumentation at a recognized college, junior college or technical vocational school may be substituted for two years of experience.

Promotional Requirement

  • One year of service with the District as Electrical Instrument and Testing Mechanic.
  • Civil service status in that class.

CLASS: 20007424; EST: 1/1/1900; REV: 7/1/2013;