Temperature measurement problems and recommended actions (continued)Table 10-3:
Problem Possible causes Recommended actions
Inaccurate tempera-
ture data from exter-
nal device
• Wiring problem
• Problem with input configuration
• Problem with external device
• Problem with input configuration
• Verify the wiring between the transmitter
and the external device.
• Verify that the external device is operating
correctly.
• Verify the configuration of the tempera-
ture input.
• Ensure that both devices are using the
same measurement unit.
10.9 API referral problems
Problem Possible causes Recommended actions
No referred density
reading
• Line pressure, line temperature, or line
density is outside the range of the config-
ured API table
• Check process conditions.
• Ensure that the API referral application is
configured correctly for your process fluid.
See Section 4.5.
Inaccurate referred
density reading
• Inaccurate density measurement
• Inaccurate temperature measurement
• Incorrect reference conditions
• Incorrect API table selection
• Verify the line density value. If it is not ac-
curate, see Section 10.7.
• Verify the line temperature value. If it is
not accurate, see Section 10.8.
• Ensure that the application is configured to
use the appropriate temperature source.
• Ensure that reference temperature and ref-
erence pressure, if applicable, are config-
ured correctly.
• Ensure that the selected API table is appro-
priate for the process fluid.
10.10 Concentration measurement problems
Problem Possible causes Recommended actions
Significantly incorrect
concentration meas-
urement after loading
matrix
• The wrong temperature or density unit
was configured when the matrix was loa-
ded
• Set the temperature and density units to
the units used when the matrix was built,
then reload the matrix. For custom matri-
ces, contact Micro Motion.
Troubleshooting
148 Micro Motion
®
Fork Density Meters (FDM)
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