Pressure Gauge Calibration and Accuracy Calibration ensures accuracy in pressure gauges. - Zero error: Corrected by adjusting pointer or spring tension. - Multiplication error: Fixed by modifying lever length. Mechanical gauges have analog readouts, while modern ones use transducers for digital displays. ASME B40.1 Standard defines accuracy grades. For a 0-100 psi gauge reading 50 psi, actual pressure can vary between 49-51 psi. #PressureGauge #Calibration #RealPars | RealPars