93
Reference Manual
00809-0200-4840, Rev BA
Section 5: Service and Troubleshooting
December 2014
Section 5: Service and Troubleshooting
5.5.10
Target echoes (D913)
This indicates the number of echoes detected by the transmitter. The maximum number
displayed is seven.
The echo closest to the transmitter face, i.e. the highest liquid level, is used to calculate the PV
(
). This is because the other echoes may be caused by multiple path surface reflections
from the tank roof or wall.
Field Communicator or AMS
To view the number of echoes received:
1.
From the
Home
screen, select 3: Service Tools.
2.
Select 1: Alerts.
3.
Select 2: Diagnostic Data.
4.
Select 1: Target Data.
5.
Select 4: Target Echoes D913.
6.
When finished, press EXIT to exit to the previous menu.
Rosemount 3490 Series Control Unit
To view the number of echoes received:
1.
From the
Main Menu
screen, select MONITOR.
2.
Select the transmitter (e.g. “
Tx1: 3107
”).
3.
Select DIAGNOSTICS.
4.
Select Target Echoes.
5.
When finished, press the ESC key to exit to the previous menu.
Fast Keys
3, 1, 2, 1, 4
Target Echoes D913
2
EXIT
HELP
(Field Communicator Screen)
Target Echoes D913
2
(Rosemount 3491 Screen)
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