Thaweesak Thumma
Rayong
Summary
A highly skilled Instrument and Electrical Maintenance Technician with over 20 years of experience in safeguarding systems, calibration, troubleshooting, and plant maintenance, including expertise in control valve repair, DCS logic testing, and the use of intelligent transmitters; currently working as a Senior Technician at PTT Asahi Chemical, with a proven track record in plant shutdowns, preventive maintenance, and managing spare parts using SAP.
Overview
2025
2025
years of professional experience
2
2
years of post-secondary education
Work History
Senior Instrument Maintenance Technician
PTT Asahi Chemical company limited
3 2014 - Current
- Perform all safeguarding instrument maintenance routine check
- Repair & overhaul control valves
- Report and work as instrument work instructions
- Testing of safeguarding systems refinery wide
- Loop test of instrument project: Master station systems and Saab tank control systems
- Calibration checks transmitter temp, pressure, level, flow and report, Rosemount Yokokawa intelligent transmitters
- Use computer control system machine
- Commissioning of instrument project
- Carry out the testing to check and maintenance on pressure, level, flow temperature, Honeywell and Foxboro Intelligent transmitters
- Troubleshoots
- & Preventive maintenance
- DCS logic testing loops onsite
- Work plan For PM & CM
- Use SAP program for checking spare part material
- PTT Asahi plant shut down due
Instrument Maintenance Technician
PTT BSA Project PTT GC Refinery.
06.2010 - 03.2014
- Perform all safeguarding instrument maintenance routine check
- Repair & overhaul control valves
- Report and work as instrument work instructions
- Testing of safeguarding systems refinery wide
- Loop test of instrument project: Master station systems and Saab tank control system
- Calibration checks transmitter temp, pressure, level, flow and report, Rosemount yogokawa intelligent transmitters
- Use computer control system machine
- Commissioning of instrument project
- PTTGC Plant Shutdown due
- Carry out the testing to check and maintenance on pressure, level, flow temperature, Honeywell and Foxboro Intelligent transmitters
- Troubleshoots
- & Preventive maintenance
- DCS logic testing loops onsite
Instrument Maintenance Technician
PMCI Project PTTAR Refinery
06.2008 - 06.2010
- Perform all safeguarding instrument maintenance routine check
- Repair & overhaul control valves
- Report and work as instrument work instructions
- Testing of safeguarding systems refinery wide
- Loop test of instrument project: Master station systems and Saab tank control system
- Calibration checks transmitter temperature, pressure, level, flow and report, Rosemount, Yogokawa Intelligent transmitters
- Use computer control system machine
- Commissioning of instrument project
- PTTAR Plant Shutdown due
- Carry out the testing to check and maintenance on pressure, level, flow temperature, Honeywell and Foxboro Intelligent transmitters
- Troubleshoots
- & Preventive maintenance
Thai encon (ARC Refinery)
04.2008 - 06.2008
Electrical Technician
BRV (CUEL)
07.2007 - 04.2008
- Loop test
- Carry out the testing to check and maintenance on pressure, level, flow, temperature and transmitter
- Report and work as electrical work instructions
- Field connection
- Commissioning of instrument project
- Testing of safeguarding systems
Technician
Biomat electric.
03.2007 - 07.2007
- Carry out the testing to check and maintenance on pressure, level and temperature
- Control system boiler
- Report and work as maintenance
- Use computer control system machine
- Setting Boiler
Technician Division Pitch & Roll
Magnecomp Co., Ltd. (MPT Ayutthaya)
03.2006 - 03.2007
- Set up adjustment machine PramII, TsamIII, Brack En and Sapa
- Check Correlation and GRR (Spec master in machine)
- Use computer control system machine
- Repair machine error
- Report and work as maintenance
- Control Quality material
Technician Division HBU 4
Nidec (Rojana Ayutthaya)
11.2005 - 03.2006
- Control pressure in process
- Report and work as maintenance
- Use computer control system machine
- Repair machine error
- Set up adjustment machine
Staff Division Engineer Process
Surtec cariya (Rojana Ayutthaya)
05.2005 - 11.2005
- Control Quality material
- Test
- Control process line ZNR & line ZNB
- Control and audit In process
Technician Division Spinning
Lucky spinning Co., Ltd.
6 2004 - 5 2005
- AS: Maintenance Technician
- Control system machine
- Set up machine and maintenance machine
- Report and work as maintenance
- Use computer control system machine
- Repair machine error
Education
Diploma - Electrical Power
Technology Lawoe
01.2002 - 01.2004
Skills
Instrumentation installation
Pressure testing
Electrical troubleshooting
Flow measurement
Industrial control troubleshooting
Calibration expertise
Diagnostic testing
Temperature control
Instrument Calibration
Equipment Repair
Gas detection
Control systems
Ultrasonic testing
Level measurement
Measurement tools
Analytical instruments
Valve servicing
Calibration
Inspection and repair
Corrective maintenance
Instrument maintenance and repair
Troubleshooting skills
Technical troubleshooting
Visual inspection
Tel
084-0092001
Personaltraits
- Responsibility
- Optimist
- Hard working
References
- Mr. Surapong Ngernrnang, Lucky Spinning Company Limited, Engineer Division Spinning, 086-6451020
- Mr. Jedet Poljarus, Magnecomp Co.,Ltd., S. Engineer Division Pitch & Roll, 081-8318687
- Mr. Nueng Pitagrat, PTT Global Chemical Plc. (GC6), Instrument Technician Sr., 086-313-4902
- Mr. Suriyawut Rawdkrajab, PTT Global Chemical Plc. (GC6), I&E Supervisor, 081-209-9753
- Mr. Chaychan Singhaket, PTT Asahi company Ltd., I&E Supervisor, 084-135-7614
- Mr. Jatupon Benjaprayoonsak, PTT Asahi company Ltd., Division Manager Maintenance, 084-160-1660
- Mr. Boonmak Pengklad, PTT Asahi company Ltd., Senior Reliability Engineer (Instrument), 086-625-5737
Personal Information
- Age: 40
- Height: 180cms
- Weight: 77 kg
- Date of Birth: 10/01/83
- Gender: Male
- Nationality: Thai
- Marital Status: Married
- Religion: Buddhism
Timeline
Instrument Maintenance Technician
PTT BSA Project PTT GC Refinery.
06.2010 - 03.2014
Instrument Maintenance Technician
PMCI Project PTTAR Refinery
06.2008 - 06.2010
Thai encon (ARC Refinery)
04.2008 - 06.2008
Electrical Technician
BRV (CUEL)
07.2007 - 04.2008
Technician
Biomat electric.
03.2007 - 07.2007
Technician Division Pitch & Roll
Magnecomp Co., Ltd. (MPT Ayutthaya)
03.2006 - 03.2007
Technician Division HBU 4
Nidec (Rojana Ayutthaya)
11.2005 - 03.2006
Staff Division Engineer Process
Surtec cariya (Rojana Ayutthaya)
05.2005 - 11.2005
Diploma - Electrical Power
Technology Lawoe
01.2002 - 01.2004
Senior Instrument Maintenance Technician
PTT Asahi Chemical company limited
3 2014 - Current
Technician Division Spinning
Lucky spinning Co., Ltd.
6 2004 - 5 2005
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