Reference Manual
Rosemount 8732
Transmitter
8714i Meter Verification Test Parameters
Run the 8714i Meter Verification test on the transmitter only. This results in the verification test only checking the transmitter calibration to the limits of the test criteria selected when the 8714i Meter Verification test was initiated.
The 8714i has a multitude of parameters that set the test criteria, test conditions, and scope of the calibration verification test.
Test Conditions for the 8714i Meter Verification
There are three possible test conditions that the 8714i Meter Verification test can be initiated under. This parameter is set at the time that the Sensor Signature or 8714i Meter Verification test is initiated.
No Flow, Full Pipe
Run the 8714i Meter Verification test with a full pipe and no flow in the line. Running the 8714i Meter Verification test under this condition provides the most accurate results and the best indication of magnetic flowmeter health.
Flowing, Full Pipe
Run the 8714i Meter Verification test with a full pipe and flow in the line. Running the 8714i Meter Verification test under this condition provides the ability to verify the magnetic flowmeter health without shutting down the process flow in applications where a shutdown is not possible. Running the calibration verification under flowing conditions can cause false fails if the flow rate is not at a steady flow, or if there is process noise present.
Empty Pipe
Run the 8714i Meter Verification test with an empty pipe. Running the 8714i Meter Verification test under this condition provides the ability to verify the magnetic flowmeter health with an empty pipe. Running the calibration verification under empty pipe conditions will not check the electrode circuit health.
8714i Meter Verification Test Criteria
The 8714i Meter Verification diagnostic provides the ability for the user to define the test criteria that the verification must test to. The test criteria can be set for each of the flow conditions discussed above.
No Flow, Full Pipe
Set the test criteria for the No Flow condition. The factory default for this value is set to two percent with limits configurable between one and ten percent.
Flowing, Full Pipe
Set the test criteria for the Flowing, Full condition. The factory default for this value is set to three percent with limits configurable between one and ten percent
Empty Pipe
Set the test criteria for the Empty Pipe condition. The factory default for this value is set to three percent with limits configurable between one and ten percent
