Instrument Mechanic

HF Sinclair•Tulsa, OK
•Onsite

About The Position

The Instrument Mechanic troubleshoots, installs, repairs, maintains, adjusts, and calibrates indicating, recording, and controlling pneumatic and electronic instruments, valves, analyzers, control systems, and related equipment in a petroleum refinery. The role measures and controls process variables including pressure, flow, level, temperature, motion, force, and chemical composition, and works with process control and environmental analyzers, electrical power systems, PLCs, interlocks, permissives, lighting, and motor-control systems. The position requires interpreting schematics, P&IDs, loop sheets, and shutdown procedures; testing and calibrating equipment; replacing or repairing defective components; terminating wiring; and installing pneumatic or process piping and tubing. The mechanic also supports safety and environmental programs, reports incidents and unsafe conditions, and may perform other maintenance-support duties as assigned. This is refinery-based work in indoor and outdoor industrial environments and may involve adverse weather, hazardous materials, confined spaces, heights, noise, vibration, and electrical and mechanical hazards. Schedules may change and overtime, weekend work, callouts, and rotating 12-hour shifts may be required. Candidates must complete a Safety and Craft Specific Test at Tulsa Technology Center. A satisfactory comprehensive physical examination and drug screen are also required.

Requirements

  • At least three years of industrial, chemical plant, or refinery experience.
  • Experience troubleshooting, installing, repairing, and calibrating pneumatic and electronic process-control instruments and valves.
  • High school diploma or equivalent.
  • Ability to solve problems efficiently, handle multiple projects, make decisions, and take responsibility.
  • Ability to read and interpret blueprints, electrical schematics, control loop sheets, P&IDs, and shutdown procedures, and draw simple work sketches.
  • Strong analytical skills and mathematics knowledge for setting up flow, level, temperature, and pressure measurements.
  • Strong instrument maintenance, troubleshooting, and construction background, including refinery instrumentation, control valves, recorders, controllers, and process-control valves.
  • Good verbal and written communication skills, mechanical ability, and computer literacy.
  • Ability to understand and follow verbal instructions and job- and safety-related rules and regulations.
  • Proficiency using precision test and calibration equipment.
  • Knowledge of the four primary process variables—flow, level, pressure, and temperature—and types J and K thermocouples.
  • Basic understanding of Honeywell TDC systems.
  • Ability to complete a satisfactory comprehensive physical examination; a drug screen is part of the physical.
  • Ability to work flexible schedules and overtime as business needs require, including weekend work, callouts, and rotating 12-hour shift schedules at times.
  • Ability to meet the stated physical requirements, including lifting or carrying up to 50 pounds, working at heights and in confined spaces, and wearing required PPE and periodically using SCBA or in-line breathing air.
  • Valid driver’s license and proof of insurance; ability to operate and drive assigned company vehicles at company standard insurance rates.
  • Must be able to use SCBA and in-line breathing air when required; the posting specifies no beards due to PPE requirements.
  • All candidates must complete a Safety and Craft Specific Test at Tulsa Technology Center; candidates schedule the test through the provided registration link.

Nice To Haves

  • Technical degree, electronics degree, or related training.
  • Experience maintaining distributed control systems and analyzers.
  • PLC expertise.
  • Ability to maintain and troubleshoot pH equipment, hydrocarbon and H2S detectors, and furnace oxygen analyzers.

Responsibilities

  • Install, repair, maintain, and calibrate pneumatic and electronic instruments used to measure and control process variables.
  • Disassemble malfunctioning instruments, inspect and test mechanisms and circuitry, and repair or replace defective parts.
  • Reassemble, test, and calibrate instruments using precision testing and calibration equipment.
  • Inspect instruments periodically and make calibration adjustments to keep them within specified control variables.
  • Repair control valves and positioners and troubleshoot and repair low-voltage electrical control systems.
  • Perform shutdown testing on instrumentation switches and controls as specified in shutdown procedures.
  • Test, troubleshoot, repair or replace, calibrate, and reinstall electrical and electronic instrumentation and PLCs.
  • Operate testing equipment and interpret test results.
  • Use P&IDs and loop sheets to identify process flow and instrumentation locations and troubleshoot problems.
  • Terminate wiring in control rooms and junction boxes and connect electronic devices to instrumentation.
  • Install pneumatic or process piping and tubing to instrumentation.
  • Maintain and troubleshoot process instruments, control systems, analyzers, and refinery electrical power systems.
  • Report incidents, identify potential environmental problems, and take action to prevent incidents.
  • Identify and communicate unsafe conditions, follow safety procedures, and participate in safety and equipment audits as required.
  • Perform supporting duties such as pipefitting, truck driving, forklift and manlift work, and other maintenance tasks as needed.
  • Order equipment and supplies.
  • Complete other assignments as directed by the supervisor.
  • Participate in safety and environmental meetings, training, emergency drills, hazard recognition, and related programs; report accidents, injuries, and near misses and participate in investigations.

Benefits

  • Medical insurance
  • Vision insurance
  • Dental insurance
  • Paid time off
  • 401(k) retirement plan with match
  • Educational reimbursement
  • Parental bonding time
  • Employee discounts
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service