114
Reference Manual
00809-0100-4803, Rev GA
Troubleshooting
September 2017
Troubleshooting
5.5
Measurement troubleshooting
The transmitter provides a means to display the current process variables and flow calculations. If the
process variable reading is unexpected, this section provides the symptoms and possible corrective
actions.
Table 5-4. Unexpected Process Variable (PV) Readings
Symptom
Corrective action
High PV Reading
Primary element
•
Check for restrictions at the primary element.
•
Check the installation and condition of the primary element.
•
Note any changes in process fluid properties that may affect output.
Impulse piping
•
Check to ensure the pressure connection is correct.
•
Check for leaks or blockage.
•
Check to ensure that blocking valves are fully open.
•
Check for entrapped gas in liquid lines or for liquid in gas lines.
•
Check to ensure the density of fluid in impulse lines is unchanged.
•
Check for sediment in the transmitter process flange.
•
Make sure that process fluid has not frozen within the process flange.
Power supply
•
Check the output voltage of the power supply at the transmitter. It should be 12 to 42.4 V dc for HART with no load at
the transmitter terminals.
Note
Do not use higher than the specified voltage to check the loop, or damage to the transmitter may result.
Feature board electronics
•
Connect a personal computer and use AMS Device Manager, Engineering Assistant Software, or the Field
Communicator to check the sensor limits to ensure calibration adjustments are within the sensor range and that
calibration is correct for the pressure being applied.
•
Confirm the electronics housing is properly sealed against moisture.
•
If the feature board electronics are still not functioning properly, substitute new feature board electronics.
Flow configuration (fully compensated mass and energy flow feature board only)
•
Verify flow configuration is correct for current application
Process temperature RTD input
•
Verify all wire terminations
•
Verify sensor is a Pt 100 RTD
•
Replace Pt 100 sensor
Sensor module
•
The sensor module 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 Emerson
™
Service Center.
Содержание 3051S Series
Страница 1: ...Reference Manual 00809 0100 4803 Rev GA September 2017 Rosemount 3051S MultiVariable Transmitter ...
Страница 2: ......
Страница 114: ...106 Reference Manual 00809 0100 4803 Rev GA Operation and Maintenance September 2017 Operation and Maintenance ...
Страница 126: ...118 Reference Manual 00809 0100 4803 Rev GA Troubleshooting September 2017 Troubleshooting ...
Страница 171: ...Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA 163 Product Certifications ...
Страница 173: ...Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA 165 Product Certifications ...
Страница 176: ...168 Product Certifications Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA ...
Страница 180: ...172 Product Certifications Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA CO S CO O ...
Страница 181: ...Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA 173 Product Certifications ...
Страница 182: ...174 Product Certifications Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA ...
Страница 184: ...176 Product Certifications Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA ...
Страница 185: ...Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA 177 Product Certifications ...
Страница 187: ...Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA 179 Product Certifications ...
Страница 188: ...180 Product Certifications Product Certifications September 2017 Reference Manual 00809 0100 4803 Rev GA ...
Страница 189: ......