Omega PX2088 User Manual page 40

TROUBLESHOOTING
TABLE 5-1. Smart Transmitter Troubleshooting and Corrective Actions.
Symptom
High Output
Erratic Output
Potential Source
Impulse Piping,
Electronics
Power Supply
Other Components
Impulse Piping
Loop Wiring
Electronics
Other Components
Corrective Action
• Check for blockage in the impulse line.
• Check to ensure that the blocking valve is fully open.
• Check for trapped gas in a liquid line, or trapped liquid
in a gas line.
• Check to ensure that the density of the fluid in the
impulse line is unchanged.
• Check for sediment in the transmitter process
connection. If you find sediment, flush the process
connection clean with water or an appropriate solvent.
Do not attempt to scrape sediment free; doing so
could puncture the thin isolating diaphragm and destroy
the transmitter.
• Check for frozen process fluid in the process connector.
• Check test equipment.
• Perform full sensor trim.
• Check the output voltage of the power supply at the
(1)
transmitter.
• Replace the transmitter.
• Check for leaks or blockage in the impulse line.
• Check to ensure that the blocking valve is fully open.
• Check for trapped gas in a liquid line, or trapped liquid
in a gas line.
• Check to ensure that the density of the fluid in the
impulse line is unchanged.
• Check for sediment in the transmitter process
connection. If you find sediment, flush the process
connection clean with water or an appropriate solvent.
• Check for frozen process fluid in the process connector.
• Check for trapped gas in a liquid line, or trapped liquid
in a gas line.
• Check for adequate voltage to the transmitter.
• Check for intermittent shorts, open circuits, and multiple
grounds.
• Check for EMF interference.
• Check damping.
• Replace the output board and recalibrate the
transmitter.
• Replace the transmitter.
5-2
(1)