Emerson Micro Motion 1000 Series Configuration And Use Manual page 164

Troubleshooting
Table 12-11 Standard core processor LED behavior, meter conditions, and remedies continued
LED behavior
3 rapid flashes,
followed by pause
4 flashes per second
OFF
Table 12-12 Enhanced core processor LED behavior, meter conditions, and remedies
LED behavior
Solid green
Flashing yellow
Solid yellow
Solid red
Flashing red (80% on,
20% off)
Flashing red (50% on,
50% off)
154
Condition Possible remedy
Sensor not recognized Check wiring between transmitter and sensor (9-wire remote
installation or remote core processor with remote transmitter
installation). Refer to Appendix B for diagrams, and see your
transmitter installation manual.
Improper configuration Check sensor characterization parameters. See Section 6.2.
Broken pin between Contact Micro Motion. See Section 12.3.
sensor and core
processor
Fault condition Check alarm status.
Core processor • Verify power supply wiring to core processor
receiving less than 5
volts • If transmitter status LED is lit, transmitter is receiving power. Check
• If transmitter status LED is not lit, transmitter is not receiving power.
Core processor Contact Micro Motion. See Section 12.3.
internal failure
Condition Possible remedy
Normal operation No action required.
Zero in progress If calibration is in progress, no action required. If no calibration is in
progress, contact Micro Motion. See Section 12.3.
Low severity alarm Check alarm status.
High severity alarm Check alarm status.
Tubes not full If alarm A105 (slug flow) is active, see Section 12.17.
If alarm A033 (tubes not full) is active, verify process. Check for air in
the flow tubes, tubes not filled, foreign material in tubes, or coating in
tubes.
Electronics failed Contact Micro Motion. See Section 12.3.
diagrams.
voltage across terminals 1 (VDC+) and 2 (VDC–) in core processor.
If reading is less than 1 VDC, verify power supply wiring to core
processor. Wires may be switched. See Section 12.14.1, and refer to
Appendix B for diagrams. Otherwise, contact Micro Motion (see
Section 12.3).
Check power supply. See Section 12.14.1, and refer to Appendix B
for diagrams. If power supply is operational, internal transmitter,
display, or LED failure is possible. Contact Micro Motion. See
Section 12.3.
Micro Motion Series 1000 and Series 2000 Transmitters
.
Refer to Appendix B for