
Fault 9, LOI
When Fault 9 is detected, the LOI displays the message
O2 Temp Hi
.
Recommended actions
1. Remove power. Unscrew and remove the LOI module from the electronic assembly.
2. Reconnect power to the transmitter.
3. Perform the Recommended actions in
.
8.5.10
Fault 10, High Cell mV
Fault 10, membrane keypad
When Fault 10 is detected, the
O2 Cell LED
flashes once, pauses for three seconds, and
then repeats.
Figure 8-18: O2 Cell LED on Membrane Keypad
Potential causes
The orange or green wire has come loose from the crimped connection in connector J1.
Recommended actions
1. Using a multimeter, measure across TP1+ to TP2-.
If you measure 104 mV to 1 volt DC, the cell reading is due to high combustibles.
This is a self-clearing alarm. If you measure 1.2 Vdc, the cell wires, either orange or
green, have become detatched from the input.
.
Reference Manual
Troubleshoot
00809-0100-4340
October 2019
Rosemount Oxymitter 4000
135
Summary of Contents for Rosemount Oxymitter 4000
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