Emerson Process Management 8732 manual 8714i Meter Verification Test Parameters

Reference Manual

00809-0100-4663, Rev BA January 2010

Rosemount 8732

8714i Meter Verification Test Parameters

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

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

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.

375Transducer Block, Diagnostics, Diagnostic Variables, Line Noise AMS Tab 8714i

No Flow

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.

375

AMS Tab

Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification, Set Pass/Fail Criteria, No Flow Limit

8714i

Flowing, Full

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.

375

AMS Tab

Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification, Set Pass/Fail Criteria, Flowing Limit

8714i

C-9