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
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
Alerts: Allows you to set tone, vibration, or silent alerts for depth and time. You can enable 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.
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
CCR Setpoints, page
9).
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 enable a chest heart rate monitor, such as the HRM-Swim
data with the dive. You can view chest heart rate monitor data in the Garmin Dive
the dive.
Double Tap to Scroll: Allows you to double tap the device to scroll through the dive data screens.
UP Key: Allows you to disable the UP button during dive activities to prevent inadvertent button presses.
NOTE: This setting is disabled by default.
Deco Lockout: Allows you to disable the decompression lockout feature. This feature prevents single-gas and
multi-gas 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.
Diving
(Setting Up Your Breathing Gases, page
8).
or HRM-Tri
device, that stores heart rate
™
™
app after you complete
™
8). You can
(Setting
7