Dive Alerts
Alert Message |
Cause |
Watch Action |
---|---|---|
None |
You completed the decompression stop. |
The decompression stop depth and time flash blue for five seconds. |
None |
Your partial pressure of oxygen (PO2) value is above the specified warning value. |
Your PO2 value flashes yellow. |
%1 OTU accumulated. End your dive now. |
Your oxygen toxicity units are above the safe limit. During a dive, "%1" is replaced with the number of units accumulated. |
The alert appears every two minutes, up to three times. |
250 OTU accumulated. |
Your oxygen toxicity units (OTU) are at 250 units, and you are nearing the safe limit of 300 units. |
None |
Approaching Deco Stop |
You are within one stop interval (3 m or 9.8 ft.) of the decompression stop depth. |
None |
Approaching NDL |
You have 10 minutes of no decompression limit (NDL) time remaining. |
The alert appears again when you have 5 minutes of NDL time remaining. |
Ascending too fast. Slow your ascent. |
You are ascending faster than 9.1 m/min. (30 ft./min.) for more than 5 seconds. |
None |
Battery critically low. End your dive now. |
Less than 10% battery power remains. |
The alert appears when the watch is below 10% battery power and on the dive pre-check screen for your next dive. |
Battery is low. |
Less than 20% battery power remains. |
The alert appears when the watch is below 20% battery power and on the dive pre-check screen for your next dive. |
CNS toxicity at %1%. End your dive now. |
Your CNS oxygen toxicity is too high. During a dive, "%1" is replaced with your current CNS percentage. |
The alert appears every two minutes, up to three times. |
CNS toxicity at 80%. |
Your central nervous system (CNS) oxygen toxicity is at 80% of the safe limit. |
The alert appears during a dive and on the dive pre-check screen for your next dive. |
Deco/NDL guidance unavailable. |
You have exceeded the dive depth limit for the watch. |
Information that requires accurate tissue loading is unavailable for the remainder of the dive, including NDL time, stop times, and time to surface (TTS). The NDL field is replaced with a warning message. |
Decompression Cleared |
You completed all decompression stops. |
None |
Descend below deco ceiling. |
You are more than 0.6 m (2 ft.) above the decompression ceiling. |
The current depth and stop depth flash red. If you remain above the decompression ceiling for more than three minutes, the decompression lockout feature goes into effect. |
Descend to complete safety stop. |
You are more than 2 m (8 ft.) above the safety stop ceiling. |
The current depth and stop depth flash yellow. |
Dive will end in %1 seconds. |
The watch will automatically end and save the dive. During a dive, "%1" is replaced by the number of seconds. |
None |
Do not dive. Failed to read depth sensor. |
The watch has invalid or missing depth sensor data before you start a dive activity. |
Do not start a dive. Call Garmin® Product Support. |
Failed to read depth sensor. End your dive now. |
The watch has invalid or missing depth sensor data after you have started a dive activity. |
Use a backup dive computer or dive plan and end your dive. Call Garmin Product Support. |
NDL exceeded. Decompression now required. |
You have exceeded your NDL time. |
The watch begins providing decompression stop guidance. |
PO2 is high. |
Your PO2 value is above the specified critical value. |
Your PO2 value flashes red. The alert appears every 30 seconds, up to three times, until you ascend to a safe level. |
Safety Stop Cleared |
You completed the safety stop. |
None |
Safety Stop Started |
You ascended above 6 m (20 ft.) without other decompression guidance. |
The safety stop countdown timer begins, if configured. |
Watch rebooted. Evaluate dive conditions. |
The watch rebooted during the dive. |
The watch simulates the dive for the time it was rebooting. Since other alerts may not have been triggered, evaluate your current depth and dive conditions. |