Unstable readings on a pressure transmitter with an LCD display may be caused by process pressure fluctuations, power supply or wiring faults, electromagnetic interference, improper installation, or incorrect parameter settings. This article explains how to compare readings with a reference gauge, inspect the loop, identify pressure pulsations, and perform calibration based on field symptoms, helping you quickly pinpoint the problem and avoid misdiagnosis or unnecessary replacement. Click to learn practical troubleshooting steps and improve measurement reliability.

How to solve abnormal display of liquid crystal display pressure transmitter? This article starts with common faults such as no display, random jumps, missing segments, and inaccurate values, and explains how to troubleshoot power supply, wiring, parameters, interference, and pressure introduction issues to help quickly locate the cause and improve on-site maintenance efficiency.