An instrument technician installs, tests, calibrates, maintains, and repairs the instruments and control systems that regulate industrial processes, ensuring safety and efficiency in various industries like manufacturing, oil and gas, and food processing. Key duties include diagnosing problems with electronic, pneumatic, and hydraulic equipment, troubleshooting issues with SCADA and control systems, performing preventive maintenance, and documenting work. The role requires strong mechanical and electrical skills, attention to detail, troubleshooting ability, and the ability to use specialized test and calibration equipment.