Why Is My HART Communicator Unable to Detect the Instrument? What Does “No Device Found” Mean? HART communication has become an essential part of modern process instrumentation because it allows engineers to configure, calibrate, verify, and diagnose smart field devices without interrupting the normal four to twenty milliamp process signal. Whether commissioning a pressure transmitter, … Continue reading HART Communicator Unable to Detect Instrument: Complete Troubleshooting Guide (No Device Found Error)