CHRISTOPHER SERNA
Portland
Summary
Instrumentation Technician with 13 years of experience in chemical plant operations, commissioning, and maintenance. Skilled in calibration, loop checks, troubleshooting, and repair of field instrumentation, analyzers, control valves, and DCS systems. Proven record supporting plant startups, executing commissioning procedures, and ensuring reliable process measurements.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Instrumentation Technician
OxyChem
03.2016 - Current
- Install, calibrate, troubleshoot, and maintain process instrumentation including pressure, temperature, flow, level, and analytical devices.
- Maintain and repair control valves, smart positioners, MOVs, and analyzer systems.
- Use DeltaV DCS for diagnostics, configuration, and loop evaluation.
- Perform preventive and predictive maintenance.
- Provide troubleshooting support during plant upsets and shutdowns.
Instrumentation Technician
Alcoa
09.2012 - 03.2016
- Performed routine and emergency instrumentation maintenance for refinery operations.
- Calibrated and repaired transmitters, flow meters, level devices, analyzers, and temperature instruments.
- Conducted loop checks, device troubleshooting, and control valve maintenance.
Education
Associate of Applied Science - Computerized Systems & Robotics (Instrumentation)
Texas State Technical College
01.2012
Skills
- Instrument Calibration & Configuration
- Loop Checks & Functional Testing
- Analyzer Installation & Troubleshooting
- Control Valve / Positioner Maintenance
- PLC / DCS Interface (DeltaV)
- P&ID; / Schematics Interpretation
- Commissioning & Startup Support
- Device Diagnostics & Signal Verification
- Process Measurement (Pressure, Flow, Level, Temp)
- Vibration Monitoring Equipment
- Gas Detection Systems
Certification
NCCER – Instrumentation
Timeline
Instrumentation Technician
OxyChem
03.2016 - Current
Instrumentation Technician
Alcoa
09.2012 - 03.2016
Associate of Applied Science - Computerized Systems & Robotics (Instrumentation)
Texas State Technical College