Emerson Rosemount Oxymitter 4000 Instruction Manual page 109

Instruction Manual
IM-106-340, Rev. 4.3
July 2017
Figure 8-13. Fault 11, Bad Cell
Oxymitter 4000
Fault 11, Bad Cell
Figure 8-13 shows the electronic assembly for
an Oxymitter 4000 with a membrane keypad
(upper view) and an Oxymitter 4000 with an LOI
(lower view).
Membrane Keypad
When Fault 11 is detected, the O2 CELL flashes
three times, pauses for three seconds, and
repeats.
1. The bad cell alarm activates when the cell
exceeds the maximum resistance value.
2. The cell should be replaced. See "Cell
Replacement" in Section 9: Maintenance
and Service, for cell replacement
instructions.
LOI
When Fault 11 is detected, the LOI displays the
"O2 Cell Bad" message. Refer to the comments
and procedures in paragraphs 1 and 2 abov
8-17