ATI
Model F12/D Gas Transmitter
Part 4
– Operation
49
O&M Manual (Rev-H)
For oxygen sensors, Alarm is a low-low alarm
set to 16%, Warning is a low alarm set to
19.5%, and Caution is a high alarm set to 23%.
Figure 63 depicts the relationships of these
alarms.
Figure 63. Oxygen Deficiency Alarms
Low-Low Alarm
Low Alarm
O
2
High Alarm