Use individual shielded twisted wire pairs. Terminate the shield at the electronics
housing.
2.3.4 Oxygen (O
2
) 4-20 mA signal
One 4-20 mA signal represents the O
2
value.
Superimposed on the O
2
signal is the HART
®
information accessible through a
handheld communicator or Asset Management Solutions (AMS) software.
The O
2
signal is at the AOUT 1 terminals.
2.3.5 Combustibles equivalent (COe) 4-20 mA signal
Another 4-20 mA signal at the AOUT 2 terminals represents the COe value.
HART
®
information is not available on the COe signal.
2.3.6 FOUNDATION
™
Fieldbus signal
The FOUNDATION Fieldbus signal provides all output information and is accessible
through a Handheld Communicator.
2.3.7 Alarm output relay
Connect any customer-supplied relay input to the alarm output relay terminal.
Use shielded wire and terminate the shield at the electronics housing. The alarm
Manual Install
00809-0500-4880 December 2022
Rosemount OCX8800A 35
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