Instrument​/Analyser Technician

The Instrument/Analyser Technician provides combined technical support for field instrumentation and online process analysers across the refinery. Reporting to the Instrument/Analyser Coordinator, this role ensures measurement integrity, analyser reliability and instrument availability by performing hands on maintenance, calibration, troubleshooting, sample system work and by coordinating integration with control systems and operations.

• Carry out troubleshooting, maintenance, calibration and repairs on field instruments (pressure, temperature, level, flow transmitters, control valves, positioners, local I/O) and process analysers (GC, FTIR, NIR, O2/H2S, moisture, conductivity, etc.).
• Maintain and service analyser sample systems (heated lines, filters, condensate traps, pumps, regulators) to ensure representative and timely samples.
• Perform loop checks, functional tests and analyser span/calibration checks; maintain valid calibration certificates and records.
• Provide on‑call after‑hours support for urgent instrument or analyser failures.
• Record all work, calibration results, device diagnostics and corrective actions in the CMMS (SAP) and site documentation systems.

Work closely with Operations, Control Systems/OT, Laboratory, Maintenance, Reliability and Process teams to resolve measurement issues and ensure data is fit for control and quality decisions. Liaise with vendors and contractors for analyser repairs, calibrations, spare parts, FAT/SAT and warranty activities. Support integration of analyser and instrument signals into DCS/SCADA, historians and reporting systems; coordinate with Control Systems for communication and signal integrity issues.

Support tank gauging and level measurement integration in coordination with the Tank Team where applicable.

Implement preventive and predictive maintenance strategies for both analysers and field instruments to maximise availability and measurement reliability. Maintain calibration schedules, certificates, as‑built documentation and instrument configuration to site standards. Monitor spares usage, identify critical spares needs and support procurement in line with the site sparing philosophy.

Analyse trends, alarm histories, calibration drift and device diagnostics to identify instrument or analyser degradation and recommend corrective actions. Participate in condition monitoring programs (smart diagnostics, analyser QC checks) and prioritise follow‑up work. Lead or support root cause investigations for recurring failures in collaboration with field teams and reliability engineers.

Support specification, installation, commissioning, FAT/SAT and validation of new analyser packages and instrument packages for small capital and maintenance projects. Update and maintain loop diagrams, I/O lists, tag assignments and control system graphics to reflect field changes. Assist with analyser and instrument upgrades, replacements and relocations as part of the Asset Management Life Cycle; ensure MOC and documentation requirements are met.

Plan and support execution of safety‑critical device tests, ESD/SDV checks and instrument/analyser functional tests as directed. Ensure work complies with Safety Critical Elements (SCEs), process safety standards and regulatory requirements. Participate in safety walkdowns, PHAs, MOCs and risk assessments; implement corrective actions to mitigate measurement risks.

Provide technical guidance and training to operators, instrumentation technicians and apprentices on analyser operation, sample handling, instrument calibration and basic troubleshooting. Contribute to incident investigations, reliability studies and continuous improvement initiatives focused on measurement quality and availability. Identify opportunities to standardise practices, improve QA/QC procedures and enhance digital capture of device health data.

Manage multiple…