Emerson Rosemount 5081FG Reference Manual page 15

Reference Manual
00809-0100-4882, Rev AB
May 2019
Figure 1-2. Two-Wire In-Situ Oxygen Analyzer HART Connections and AMS Application
8. An operator can operate and diagnostically troubleshoot the Two-Wire
In-Situ Oxygen Analyzer in one of two ways:
a. Infrared Remote Control. The IRC allows access to fault indication
menus on the Rosemount 5081 transmitter LCD display. Calibration
can be performed from the IRC keypad.
b. Optional HART Interface (Figure 1-2). The Two-Wire In-Situ Oxygen
Analyzer's 4-20 mA output line transmits an analog signal
proportional to the oxygen level. The HART output is superimposed
on the 4-20 mA output line. This information can be accessed
through the following:
• Field Communicator - The field communicator requires Device
Description (DD) software specific to the Two-Wire In-Situ
Oxygen Analyzer. The DD software will be supplied with many
field communicators but can also be programmed into existing
units at most Fisher-Rosemount service offices. See Section 4:
HART/AMS, for additional HART information.
• Personal Computer (PC) - The use of a personal computer
requires AMS software available from Fisher-Rosemount.
9. Selected Distributed Control Systems - The use of distributed control
systems requires input/output (I/O) hardware and AMS Security codes
are provided to (by infrared remote control) prevent unintended changes
to analyzers adjacent to the one being accessed.
10. A calibration check procedure is provided to determine if the Rosemount
Two-Wire In-Situ Oxygen Analyzer is correctly measuring the net
oxygen concentration in the industrial process.
Rosemount 5081FG
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