201
Reference Manual
00809-0100-4840, Rev CB
Appendix F: Programming the 3102 and 3105 using HART
February 2015
Programming the 3102 and 3105 using HART
F.4.8
Echo size (D911)
The size of the echo returned from a surface depends on the surface range, gas composition and
temperature, transmitter performance, in-tank conditions (turbulence, presence of surface
foam, and draughts), and other factors.
The received echo strength may vary from pulse-to-pulse but monitoring the read-only
parameter Echo Size (D911) indicates the latest echo strengths.
The indicated value is an averaged percentage of the last five echoes, with 100% representing a
saturated returned signal.
Field Communicator or AMS Device
Manager
To view the echo strength
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 2: Echo Size D911.
6.
When finished, select EXIT to exit to the previous menu.
Rosemount 3490 Series Control Unit
To view the echo strength
1.
From the
Main Menu
screen, select MONITOR.
2.
Select the transmitter (e.g. “Tx1: 3102”).
3.
Select DIAGNOSTICS
4.
Select Echo Size.
5.
When finished, use the ESC key to exit to the previous menu.
Fast Keys
3, 1, 2, 1, 2
Echo Size D911
53 %
EXIT
HELP
(
Field Communicator Screen Shown
)
Echo Size D911
75%
(
Rosemount 3491 Screen Shown
)
Содержание Rosemount 3101
Страница 2: ......
Страница 4: ...ii Reference Manual 00809 0100 4840 Rev CB Title Page February 2015 ...
Страница 12: ...x Reference Manual 00809 0100 4840 Rev CB Contents February 2015 Contents ...
Страница 34: ...22 Reference Manual 00809 0100 4840 Rev CB Section 3 Installation February 2015 Installation ...
Страница 68: ...56 Reference Manual 00809 0100 4840 Rev CB Section 4 Starting up February 2015 Starting up ...
Страница 112: ...100 Reference Manual 00809 0100 4840 Rev CB Appendix B Product Certifications February 2015 Product Certifications ...
Страница 120: ...108 Reference Manual 00809 0100 4840 Rev CB Appendix C Integrated Display Menus February 2015 Integrated Display Menus ...
Страница 128: ...116 Reference Manual 00809 0100 4840 Rev CB Appendix E Field Communicator Menus February 2015 Field Communicator Menus ...
Страница 236: ...224 Reference Manual 00809 0100 4840 Rev CB Index February 2015 Index ...
Страница 237: ......
Страница 238: ......
Страница 239: ......