Emerson Rosemount 8782 Reference Manual page 131

Reference Manual
00809-0100-8782
Table 12-3: Advanced meter verification messages
Error message
Continuous Meter
Verification Error
Simulated Velocity Out
of Spec
Coil Resistance Out of
Spec
Coil Signature Out of
Spec
Reference Manual
Potential cause
Transmitter calibration verification
test failed
Sensor calibration test failed
Sensor coil circuit test failed
Sensor electrode circuit test failed
Unstable flow rate during the
verification test or noisy process
Transmitter drift or faulty electronics
Moisture in the terminal block of the
sensor, shorted coil, high temperature
application, or long length of remote
cable
Moisture in the terminal block of the
sensor or shorted coil
Calibration shift caused by heat cycling
or vibration
(continued)
Corrective action
Verify pass/fail criteria
Run commanded Smart Meter Verification under no
flow conditions
Verify calibration using 8785 Calibration Standard
Perform digital trim
Contact an Emerson Flow representative (see back
page)
Run commanded Smart Meter Verification
Perform sensor tests - see
Run commanded Smart Meter Verification
For high temperature applications, retake the coil
baseline once the sensor has reached operating
temperature
For installations with long lengths of remote cable,
retake the coil baseline
Perform sensor tests - see
Run commanded Smart Meter Verification
Perform sensor tests - see
Verify electrode resistance has a signature value
from a full pipe baseline
Run commanded meter verification test with no
flow and a full pipe
Perform the procedure in
persists, contact an Emerson Flow representative
(see back page)
For high temperature applications, retake the coil
baseline once the sensor has reached operating
temperature
For installations with long lengths of remote cable,
retake the coil baseline
Perform sensor tests - see
If the problem persists, replace the sensor
Perform sensor tests - see
If the problem persists, replace the sensor
Perform sensor tests - see
If the problem persists, replace the sensor
Troubleshooting
November 2019
Installed sensor tests
Installed sensor tests
Installed sensor tests
Digital trim; If the problem
Installed sensor tests
Installed sensor tests
Installed sensor tests
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