Emerson 3081FG instruction manual Diagnostics Menu, Show Fault, C mV

Model 3081FG

Instruction Manual

IB-106-3081 Rev. 1.5 September 2002

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Figure 3-20. SHOW FAULT

3-6 DIAGNOSTICS MENU

The DIAGNOSTICS MENU branch of the menu tree allows you to examine outputs, current faults, and unit information. None of the items in the DIAGNOSTICS MENU are editable. This branch of the menu tree may be accessed by pressing DIAG on the IRC when in the PROC- ESS DISPLAY screen (Normal or Faulted). Each screen in this branch is accessed sequen- tially by pressing NEXT. Refer to Figure 3-5during the following menu and screen descriptions.

a.SHOW FAULT

Refer to Figure 3-20. After pressing DIAG, this screen displays. Pressing ENTER ac- cesses a screen displaying the current fault (if any). If more than one fault exists, and you are in the FAULT screen, press NEXT to go to the next fault. Information on the fault screens can be found in Section 6, TROUBLESHOOTING. Press EXIT to re- turn from this fault sub-menu and press NEXT to access the T/C mV screen.

b.T/C mV

Refer to Figure 3-21. Use this screen to ex- amine the cell thermocouple mV output. Three decimal places are displayed. Press- ing NEXT accesses the O2 CELL mV screen.

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THERMOCOUPLE mV

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Figure 3-21. T/C mV

c.O2 CELL mV

Refer to Figure 3-22. Use this screen to ex- amine the O2 cell mV output. Pressing NEXT accesses the CELL IMPEDANCE screen.

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O2 CELL mV

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Figure 3-22. O2 CELL mV

Rosemount Analytical Inc. A Division of Emerson Process Management Startup and Operation 3-11