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Dive Setup
You can customize the dive settings based on your needs. Not all settings are applicable for all dive modes. You
can also edit the settings before you start a dive.
Hold MENU, and select Dive Setup.
Gases: Sets the gas blends used in the gas dive modes (Setting Up Your Breathing Gases, page 9). You can
have up to twelve gases for each gas dive mode.
Conservatism: Sets the level of conservatism for decompression calculations. Higher conservatism provides a
shorter bottom time and a longer ascent time. The Custom option allows you to set a custom gradient factor.
NOTE: Make sure you understand gradient factors before entering a custom level of conservatism.
Water Type: Allows you to select the water type.
PO2: Sets the partial pressure of oxygen (PO2) thresholds, in bar, for decompression, warnings, and critical
alerts (Setting PO2 Thresholds, page 9).
Alerts: Allows you to set custom alerts for depth and time. You can customize the alert sounds, enable pop-up
notifications, and create different alerts for different dive modes.
Apnea Surf. Alert: Allows you to set alerts for apnea surface intervals.
Safety Stop: Allows you to change the safety stop duration.
Last Deco Stop: Allows you to set the depth of the final decompression stop.
End Dive Delay: Allows you to set the length of time before the device ends and saves a dive after surfacing.
CCR Setpoints: Allows you to set high and low PO2 setpoints for closed-circuit rebreather (CCR) dives (Setting
CCR Setpoints, page 10).
Backlight: Allows you to adjust the backlight settings for dive activities. You can enable the backlight
throughout the dive or only when you are at depth.
Heart Rate: Allows you to enable or disable a heart rate monitor for dives. The Stored Strap Data option allows
you to enable a chest heart rate monitor, such as the HRM-Swim
™
or HRM-Tri
™
device, that stores heart rate
data with the dive. You can view chest heart rate monitor data in the Garmin Dive app after you complete the
dive.
Double Tap to Scroll: Allows you to double tap the device to scroll through the dive data screens. If you notice
accidental scrolling, you can use the Sensitivity option to adjust the responsiveness.
UP Key: Allows you to enable or disable the UP button during dive activities to prevent inadvertent button
presses.
Silent Diving: Allows you to disable all tones and vibrations for alerts during dive activities.
No-Fly Time: Allows you to set the no-fly countdown timer mode (No-Fly Time, page 10).
Deco Lockout: Allows you to disable the decompression lockout feature. This feature prevents single-gas, multi-
gas, and CCR dives for 24 hours if you violate a decompression ceiling for more than three minutes.
NOTE: You can still disable the decompression lockout feature after violating a decompression ceiling.
8 Diving
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