Process Calibration Explained: Complete Guide to 4-20 mA, Temperature & Pressure Calibration
Process Calibration Explained: Complete Guide to 4-20 mA, Temperature & Pressure Calibration By the IndiaMeters.in Technical Team | Updated June 2026 In industrial plants, calibration failures rarely create immediate alarms. Instead, they slowly distort process data — causing inconsistent batch quality, hidden energy losses, incorrect control decisions, production downtime, and compliance risks. A pressure transmitter drifting by just 0.5% can lead to major operational inefficiencies over time. That’s why process calibration is not simply a maintenance activity. It is the foundation of process reliability, safety, product quality, and energy efficiency. In this guide, we explain: What 4-20 mA calibration actually means How to calibrate temperature and pressure instruments correctly Common calibration mistakes to avoid Recommended calibration intervals Best field calibration instruments for Indian industries What is Process Calibration? Process calibration is...