Pressure Transmitter Signal Fluctuating Randomly
I’m dealing with an intermittent issue on a pressure transmitter. The process pressure is stable, but the transmitter output randomly fluctuates for a few seconds before returning to normal. Sometimes the problem disappears for several hours. Calibration checks are okay, and diagnostics don’t show any device faults. The wiring and junction box look fine at first glance. Has anyone faced a similar problem? What hidden issues should I investigate before considering transmitter replacement?