FUNCTION & CONTROL METHOD
RTD, thermocouple, filled-system or infrared technology is selected from range, accuracy, response, vibration and material compatibility. Thermowell wake-frequency and mechanical suitability are checked.
ELECTRICAL, INSTRUMENTATION & AUTOMATION
Temperature Instrumentation
Measures process and equipment temperature for control, product quality, machinery protection and thermal safeguarding.
MAIN HARDWARE & SYSTEM BOUNDARY
RTDs, thermocouples, transmitters, thermowells, multipoint assemblies, skin thermocouples, local indicators, extension cable and junction boxes.
CRITICAL DESIGN INPUTS
Approved P&IDs and control philosophy, process ranges and alarm/trip limits, hazardous-area classification, environmental conditions, I/O and load lists, availability/redundancy target, package interfaces, communication protocols, cybersecurity and client standards.
ENGINEERING DELIVERABLES
System architecture, instrument/equipment index, datasheets, I/O list, hook-ups, loop and wiring diagrams, cabinet/panel drawings, cable schedule, network drawings, control narratives, cause-and-effect, logic diagrams, graphics, test procedures and as-built backups.
FUNCTIONAL SAFETY, RELIABILITY & CYBERSECURITY
Independent high-temperature trips, sensor voting, thermowell integrity, heater tube-skin alarms and hazardous-area requirements are coordinated with SIS/ESD.
TESTING, COMMISSIONING & APPLICATIONS
Heaters, reactors, columns, exchangers, tanks, bearings and utility systems. Sensor calibration, polarity and end-to-end loop verification are documented.
CODES, STANDARDS & QUALITY BASIS
ASME PTC 19.3 TW, IEC 60584/60751, ISA and selected EN/DIN/GOST instrument standards.
CONTRACTUAL CODE BASIS
ASME PTC 19.3 TW, IEC 60584/60751, ISA and selected EN/DIN/GOST instrument standards.