Suunto D6 User Manual page 38

Table 5.3. Oxygen alarms in NITROX mode
Alarm type
Continuous beeps for 3
minutes and activated
backlight
NOTE
WARNING
38
Set oxygen partial pressure limit is exceeded. The
alternative display is replaced with a current blinking
PO value. You should immediately ascend above the
2
PO depth limit.
2
OLF value reaches 80%. The OLF value will start to
blink.
OLF value reaches 100%. The OLF value will blink.
When the backlight is turned OFF, it does not illuminate when an
alarm is activated.
WHEN THE OXYGEN LIMIT FRACTION INDICATES THAT THE
MAXIMUM LIMIT IS REACHED, YOU MUST IMMEDIATELY
ASCEND UNTIL THE OLF VALUE STOPS BLINKING. Failure
to take action to reduce oxygen exposure after the warning is
given can rapidly increase the risk of oxygen toxicity, injury, or
death.
Alarm reason