Emerson Rosemount 3144P Reference Manual page 176

Configuration
April 2017
4.11.1 F
OUNDATION
If a malfunction is suspected despite the absence of a diagnostics message, follow the procedures
described in
order. Under each of the symptoms, specific suggestions for solving problems are offered. Always deal
with the most likely and easiest-to-check conditions first.
Table 4-13. F
OUNDATION
Symptom
Transmitter does not
Communicate with the
Configuration Interface
High output
Erratic output
Low output or no output
166
Fieldbus
Table 4-12 to verify that transmitter hardware and process connections are in good working
Fieldbus Troubleshooting
Potential source
Loop wiring
Sensor input failure
or connection
Loop wiring
Electronics module
Loop wiring
Electronics module
Sensor element
Loop wiring
Electronics module
Corrective action
•
Check for adequate voltage to the transmitter. The transmitter requires
between 9.0 and 32.0 V at the terminals to operate and provide complete
functionality.
•
Check for intermittent wire shorts, open circuits, and multiple grounds.
•
Enter the transmitter test mode to isolate a sensor failure.
•
Check for a sensor open circuit.
•
Check the process variable to see if it is out of range.
•
Check for dirty or defective terminals, interconnecting pins, or receptacles.
•
Enter the transmitter test mode to isolate a module failure.
•
Check the sensor limits to ensure calibration adjustments are within the
sensor range.
•
Check for adequate voltage to the transmitter. The transmitter requires
between 9.0 and 32.0 V at the terminals to operate and provide complete
functionality.
•
Check for intermittent wire shorts, open circuits, and multiple grounds.
•
Enter the transmitter test mode to isolate module failure.
•
Enter the transmitter test mode to isolate a sensor failure.
•
Check the process variable to see if it is out of range.
•
Check for adequate voltage to the transmitter. The transmitter requires
between 9.0 and 32.0 V at the terminals to operate and provide complete
functionality.
•
Check for wire shorts and multiple grounds.
•
Check the loop impedance.
•
Check wire insulation to detect possible shorts to ground.
•
Check the sensor limits to ensure calibration adjustments are within the
sensor range.
•
Enter the transmitter test mode to isolate an electronics module failure.
Reference Manual
00809-0100-4021, Rev JA
Configuration