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Instrument Technician

Date: Mar 2, 2023

Location: Lake Charles, LA, US, 70665

Company: W. R. Grace & Co.


Requisition ID: 21496

Built on talent, technology, and trust, Grace is a leading global supplier of catalysts and engineered materials. The company’s two industry-leading business segments—Catalysts Technologies and Materials Technologies—provide innovative products, technologies, and services that enhance the products and processes of our customers around the world. Grace employs approximately 4,300 people in over 30 countries.


Job Description

We are in search of an Instrument Technician who will report to our Maintenance Supervisor in our Lake Charles plant. This person will be accountable for installation, troubleshooting, repair and routine maintenance of instruments throughout the plant. A large portion of the work includes troubleshooting and coordinating repairs on instrument loops in the various operating units. Instrumentman follows company and craft standards and specifications and coordinates their activities with operations and other crafts when performing various routine maintenance functions.


Main duty areas and examples of essential tasks for each area are:


  • Routine Calibration – Check calibrations on flow meters, pH transmitters, electronic/pneumatic valve positioners, control valves, valve actuators, mass flow meters, D/P cell transmitters, and thermocouple/RTD transmitters. Recalibrate instruments during major overhauls. Perform routine calibrations and checks during shutdowns.
  • General and Preventive Maintenance - Remove/Replace old or broken, electric & pneumatic flow, temperature, pressure and level transmitters, DCS boards, valve parts, wiring & junction boxes. Perform repair work on transmitter wiring and modules, chromatographs, pH analyzers, transducers, control valves, and electronic/pneumatic valves. Verify DCS (Honeywell and Foxboro) is ranged correctly and adjust when necessary.
  • Discriminating and Calculating – Calculate voltages, amperages, and resistance on series and parallel circuits. Convert levels into pressure readings. Size control valves.
  • Troubleshooting Loops – Check wiring to and from instruments for proper connections and physical condition. Use proper simulator to check output of instrument making sure that proper signal conversions are being received/transmitted. Analyze electronic devices for malfunctioning sensing elements and replace instrument if defective. Verify proper power to transmitters. Verify Zero and Span settings on instruments. Stroke valves using proper equipment to verify valve stroke, actuator functions, and positioner calibration. Verify proper air supply pressures to instruments and control valves and check for contamination.
  • Inspecting Newly Installed Equipment – Commission new control loops by verifying drawings and wiring, calibrating instruments and control valves, verifying input and output ranges in DCS, and verifying proper loop operation to control system.
  • Maintain and Repair Alarm Devices – Adjust and troubleshoot temperature, pressure, flow, level switches and alarm electronics on alarming devices. Function test, calibrate, and repair alarm and shutdown systems using appropriate wiring diagrams and schematics.

Required Skills

  • Walking/standing/bending
  • Climbing ladders (up to 100 feet)
  • Climbing stairs (over 100 feet)
  • Stepping over and crawling under structures
  • Entering enclosed spaces
  • Entering "tight" places where free movement is restricted
  • Lifting, pushing, pulling or dragging objects (over 50 lbs)
  • Carrying objects (over 100 yrds)
  • Working in contorted or awkward positions
  • Working in a noisy environment
  • Working in extreme temperatures

Required Experience

High School diploma or GED and minimum 4 years Journeyman level Instrument Technician experience




Grace is not accepting unsolicited assistance from search firms for this employment opportunity. Please, no phone calls or emails. All resumes submitted by search firms to any employee at Grace via email, the Internet or in any form and/or method without a valid written search agreement in place for this position will be deemed the sole property of Grace. No fee will be paid in the event the candidate is hired by Grace as a result of the referral or through other means.


EOE Statement:  W. R. Grace & Co. is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status or any other legally protected status.


If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation.

Nearest Major Market: Lake Charles