Enabling Lost Transmitter Alerts; Dive Terminology; Activities And Apps - Garmin DESCENT MK2I Owner's Manual

Enabling Lost Transmitter Alerts

Your paired dive computer can lose communication with the transmitter when the transmitter is out of range,
when the transmitter signal is blocked by your body or that of another diver, and when the transmitter loses
battery power. You can enable an alert that notifies you when your paired dive computer has lost
communication with the transmitter for 60 seconds.
1 On the paired dive computer, hold MENU.
2 Select Dive Setup > Air Integration > Connection Alert.

Dive Terminology

Air time remaining (ATR): The time you may remain at the current depth until an ascent at 9 m/min. (30 ft./
min.) would result in surfacing with the reserve pressure.
Central nervous system (CNS): A measure of central nervous system oxygen toxicity caused by exposure to
increased partial pressure of oxygen (PO2) while diving.
Closed-circuit rebreather (CCR): A diving mode used for dives performed with a rebreather that recirculates
exhaled gas and removes carbon dioxide.
Maximum operating depth (MOD): The greatest depth at which a breathing gas can be used before the partial
pressure of oxygen (PO2) exceeds the safe limit.
No decompression limit (NDL): A dive that does not require decompression time while ascending to the
surface.
Oxygen toxicity units (OTU): A measure of pulmonary oxygen toxicity caused by exposure to increased partial
pressure of oxygen (PO2) while diving. One OTU is equivalent to breathing 100% oxygen at 1 ATM for 1
minute.
Partial pressure of oxygen (PO2): The pressure of the oxygen in the breathing gas, based on depth and oxygen
percentage.
Pressure-based surface air consumption (PSAC): The change in pressure over time, normalized to 1 ATM.
Respiratory minute volume (RMV): The change in gas volume at ambient pressure over time.
Surface interval (SI): The amount of time that has elapsed since the completion of the last dive.
Time to surface (TTS): The estimated amount of time it will take to ascend to the surface, including
decompression and safety stops.
Volumetric surface air consumption (SAC): The change in gas volume over time, normalized to 1 ATM.
Your device can be used for indoor, outdoor, athletic, and fitness activities. When you start an activity, the
device displays and records sensor data. You can save activities and share them with the Garmin Connect
community.
You can also add Connect IQ
page 57).
For more information about activity tracking and fitness metric accuracy, go to garmin.com/ataccuracy.

Activities and Apps

Activities and Apps
™ activities and apps to your device using the Connect IQ app
™
(Connect IQ Features,
33