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Reference Manual
00809-0100-4663, Rev BA
January 2010
C-9
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.
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.
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 Transducer Block, Diagnostics, Diagnostic Variables, Line Noise
AMS Tab 8714i
375 Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification,
Set Pass/Fail Criteria, No Flow Limit
AMS Tab 8714i
375 Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification,
Set Pass/Fail Criteria, Flowing Limit
AMS Tab 8714i