5-9
Troubleshooting and Maintenance
TABLE 5-5. (continued).
Symptom Corrective Action
Sluggish Output
Response/Drift
IMPULSE PIPING
• Check for leaks or blockage.
• Ensure that blocking valves are fully open
• Check for sediment in the device process flange.
• Check for entrapped gas in liquid lines and for liquid in
gas lines.
• Ensure that the density of fluid in impulse lines is unchanged.
• Make sure that process fluid has not frozen within the
process flange.
DEVICE ELECTRONICS
• Connect a Model 275 to check the sensor limits to ensure
calibration adjustments are within the sensor range and that
calibration is correct.
• Confirm that damping is correctly set.
• Confirm that the electronics housing is properly sealed
against moisture.
SENSING ELEMENT
• The sensing element is not field repairable and must be
replaced if found to be defective. Check for obvious defects,
such as a punctured isolating diaphragm or fill fluid loss, and
contact your nearest Rosemount Service Center.
• Confirm that the electronics housing is properly sealed
against moisture.
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