Emerson Process Management 8732 manual Diagnostic Variables

Rosemount 8732

Reference Manual

00809-0100-4663, Rev BA January 2010

Diagnostic Variables

375 Transducer Block, Diagnostics

From this menu, all of the diagnostic variable values can be reviewed. This information can be used to get more information about the transmitter, sensor, and process, or to get more detail about an alert that may have activated.

Empty Pipe Value

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the Empty Pipe parameter. This value will read zero if Empty Pipe is turned off.

Electronics Temperature

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the Electronics Temperature.

Line Noise

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the amplitude of AC line noise measured on the transmitter’s electrode inputs. This value is used in the grounding / wiring diagnostic.

5Hz SNR

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the signal to noise ratio at 5 Hz. For optimum performance, a value greater than 100 is preferred. Values less than 25 will cause the High Process Noise alert to activate.

37Hz SNR

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the signal to noise ratio at 37.5 Hz. For optimum performance, a value greater than 100 is preferred. Values less than 25 will cause the High Process Noise alert to activate.

Signal Power

375 Transducer Block, Diagnostics, Diagnostic Variables

Read the current value of the velocity of the fluid through the sensor. Higher velocities result in greater signal power.

8714i Results

375 Transducer Block, Diagnostics, Diagnostic Variables

Review the results of the 8714i Meter Verification tests. For more details on these results and what they mean, see Appendix C: Diagnostics.

Test Condition

375 Transducer Block, Diagnostics, Diagnostic Variables, 8714i Results

Displays the conditions that the 8714i Meter Verification test was performed under. For more details on this parameter see Appendix C: Diagnostics.

Test Criteria

375 Transducer Block, Diagnostics, Diagnostic Variables, 8714i Results

Displays the criteria that the 8714i Meter Verification test was performed against. For more details on this parameter see Appendix C: Diagnostics.

4-8