Introduction to Instrument Power Supply Load Calculation The Instrument Power Supply Load Calculator is essential for accurate 24VDC power supply sizing in industrial automation systems. In plant environments, even a small error in instrument load calculation can create unstable loop voltage, nuisance trips, communication loss, or complete shutdown of a control panel. For instrumentation engineers, … Continue reading Instrument Power Supply Load Calculator: 7 Critical Steps for Accurate 24VDC Power Supply Sizing