
Figure 8-12: HEATER LED on Membrane Keypad
Potential cause
The triac and temperature control may be at fault.
Recommended actions
1. Remove power. Allow the transmitter to cool for five minutes. Restore power.
2. If the condition repeats, replace the electronic assembly per
.
Fault 6, LOI
When Fault 6 is detected, the LOI displays the
Very Hi O2 Temp
message. The very high
O2 temperature alarm will activate when the thermocouple produces a voltage of 37.1
mV (1652 °F [900 °C]).
Reference Manual
Troubleshoot
00809-0100-4340
October 2019
Rosemount Oxymitter 4000
129
Summary of Contents for Rosemount Oxymitter 4000
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