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Reference Manual
00809-0100-4860, Rev BC
Appendix C: Electronics verification
January 2013
Electronics verification
1. Remove the electronics compartment cover.
2. Remove the two screws and the LCD indicator if applicable.
3. Connect a Field Communicator or AMS to the loop.
4. Access the flow simulation menu on the communicator and select “Sim Flow External.”
This item is used with an External Frequency Generator. This will effectively disconnect
the Rosemount 8600D sensor input from the charge amplifier input of the electronics
(see Figure 5-2 on page 72). The simulated flow and/or the shedding frequency values
will now be accessible via the Field Communicator or AMS.
5. Connect the sinewave generator to the “TEST FREQ IN” and “GROUND” points as
shown in Figure C-2.
6. Set the sinewave generator amplitude to 2Vpp±10%.
7. Select the desired sinewave generator frequency.
8. Verify the generator frequency against the frequency displayed on the Field
Communicator or AMS.
9. Exit the Flow Simulation Mode.
10. Reconnect the LCD indicator option (if applicable) to the electronics board by replacing
and tightening the two screws.
11. Replace and tighten the electronics compartment cover.
Note
To manually disconnect the sensor for precautionary measures, see Replacing the electronics
housing on page 79 for details.
Field Comm. 1, 2, 4, 3, 2
Field Comm. 1, 2, 4, 4