Dive Terminology; Activities And Apps - Garmin DESCENT G1 Series Owner's Manual

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Dive Terminology

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.
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 stops.
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Your watch can be used for indoor, outdoor, athletic, and fitness activities. When you start an activity, the watch
displays and records sensor data. You can create custom activities or new activities based on default activities
(Creating a Custom Activity, page
Garmin Connect community.
™
You can also add Connect IQ
page 147).
For more information about activity tracking and fitness metric accuracy, go to garmin.com/ataccuracy.

Activities and Apps

Dive Terminology
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Clarifying TTS does not factor in safety stops.
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burzinskititu
Activities and Apps
GUID-C2484178-A914-441B-8696-54FE20D83FBA
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Moved custom activity sentence to this topic.
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cozmyer
Activities and Apps
69). When you finish your activities, you can save and share them with the
activities and apps to your watch using the Connect IQ app
™
(Connect IQ Features,
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