Dive Modes - Garmin DESCENT G1 Series Owner's Manual

• Do not dive with a gas if you have not personally verified its contents and input the analyzed value to the
device. Failure to verify tank contents and input the appropriate gas values to the device will result in
incorrect dive planning information and could result in serious injury or death.
• Diving with more than one gas mixture presents a much greater risk than diving with a single gas mixture.
Mistakes related to the use of multiple gas mixtures may lead to serious injury or death.
• Always ensure a safe ascent. A rapid ascent increases the risk of DCS.
• Disabling the deco lockout feature on the device can result in an increased risk of DCS, which can result in
personal injury or death. Disable this feature at your own risk.
• Violating a required decompression stop may result in serious injury or death. Never ascend above the
displayed decompression stop depth.
• Always perform a safety stop between 3 and 5 meters (9.8 and 16.4 feet) for 3 minutes, even if no
decompression stop is required.
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Dive Modes

The Descent G1 device supports six dive modes. Each dive mode has four phases: dive pre-check, surface
display, in-dive, and post-dive. During the pre-dive check, you can confirm the dive settings before you start
diving (Dive Setup, page 12). The surface phase shows the data screens for the dive mode
page 16). The in-dive phase shows data about the dive in progress, and other watch features, such as GPS, are
disabled (Going Diving, page
(Viewing the Dive Log Glance, page
Single-Gas: This mode allows you to dive with a single gas blend. You can set up to 11 additional gases as
backup gases.
Multi-Gas: This mode allows you to configure multiple gas blends and switch gases during your dive. You can
set the oxygen content from 5–100%. This mode supports one bottom gas, and up to 11 additional gases as
decompression or backup gases.
NOTE: Backup gases are not used in no-decompression limit (NDL) and time to surface (TTS)
decompression calculations until you activate them during a dive.
CCR: This mode for closed-circuit rebreather (CCR) diving allows you to configure two partial pressure of
oxygen (PO2) setpoints, closed-circuit (CC) diluent gases, and open-circuit (OC) decompression and backup
gases.
Gauge: This mode allows you to dive with basic bottom timer features.
NOTE: After diving in gauge mode, the device can only be used in gauge or apnea mode for 24 hours.
Apnea: This mode allows you to free dive with apnea-specific dive data. This mode has a higher data refresh
rate.
Apnea Hunt: This mode is similar to the Apnea dive mode, but tuned specifically for spearfishers. This mode
disables start and stop tones.
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Dive Modes
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Added more context to the dive mode phases.
Released
10/02/2022 13:12:13
cozmyer
26). During the post-dive review, you can view a summary of the completed dive
33).
(Dive Data Screens,
Diving