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Atmos MISSION 3 User Manual

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Summary of Contents for Atmos MISSION 3

  • Page 2 This user manual is copyrighted by ATMOS CO., LTD. No individual or entity may reproduce, distribute, modify, or store this content (including images and text) in part or in full, for resale or use by others, without formal written authorization. For updates or additional information regarding the use of this product, please visit www.atmos.app.
  • Page 3 Conservatism..............................18 Dive Plan............................... 19 Tank Volume..............................19 Scuba Diving Log............................20 Freediving Mode............................21 Main Screen............................21 Freediving Second Screen......................22 Freediving Compass Screen.......................22 Freediving Alerts............................23 Start/ End Dive............................23 Descent Alerts............................ 23 Ascent Alerts............................24 Freefall Alerts............................24 Keep Depth............................24 Time Alert.............................. 25 Surface Time............................25 Hydration Reminder.........................25 Battery Low............................
  • Page 4 Weather & Sunrise/ Sunset time....................37 Tides.................................38 Power Saving..............................38 Firmware Update............................38 How to Update Firmware......................38 Storage and Maintenance........................39 AMOLED burn-in............................39 Watch Strap/ Dry Suit Diving......................40 . This device may also have bugs. Do not rely solely on this device as your only dive reference. Always plan your dives thoroughly and carry a backup device.
  • Page 5 . It is recommended to manually switch to dive mode before each descent. . Violation of these stops will increase the risk of decompression sickness, which may lead to serious injury or death. This device is designed for This manual corresponds to the firmware version as of .
  • Page 6 : Scroll up Display on/ Adjust brightness Bluetooth on/off 2s: Lock buttons 10s: Power off : Enter activity menu/ Select : Enter Air/ Nitrox mode Enter settings menu/ Back Return to Scroll down watch mode Stopwatch : Press & hold the or connect the device to the charger.
  • Page 7 2. Turn on the phone's Bluetooth. 3. Enable the device's pairing function (Settings menu > Connect >Connect App: on). 4. Register and log into the ATMOS App, tap the "watch icon" at the top left, then select "+" or "Pair new device."...
  • Page 8 GPS indicator (green indicates successful GPS reception) Compass heading (displays ∞ if calibration is needed) No-Decompression Limit (NDL) (displays 99+ if exceeding 99) Water temperature | Ascent/descent rate bar (displayed during diving) Dive depth Dive time Gas used | Battery level Before diving, press the B button to enter dive settings.
  • Page 9 to switch screens. , press the B button to enter dive settings. to lock the heading. The locked heading is indicated by a green arrow, while the relative heading is shown with a white arrow. For example, if you lock the heading at 90 degrees, the display will show green when approaching 90 degrees.
  • Page 10 to switch screens. , press the B button to enter dive settings. ● Press the A button to start the stopwatch; pressing A again will stop it (no pause function). ● Before diving, press the B button to enter dive settings. In the custom page settings, you can configure each field to display information such as current depth, water temperature, surface time, dive time,...
  • Page 11 Gauge mode only features depth and bottom timer functions, with no decompression tracking. Therefore, there will be no NDL or decompression stop. Air/ Nitrox /Multi-Gas modes will be locked for 24 hours after the last gauge dive. To unlock, go to the Settings menu > System > Reset Nitrogen. to switch screens.
  • Page 12 to switch screens. , press the B button to enter dive settings. to lock the heading. The locked heading is indicated by a green arrow, while the relative heading is shown with a white arrow. For example, if you lock the heading at 90 degrees, the display will show green when approaching 90 degrees.
  • Page 13 to switch screens. , press the B button to enter dive settings. Compass Bearing Surface Time Water Temperature Current Depth Average Depth Maximum Depth The alerts will vary depending on the dive mode. ● The dive will automatically start when the descent depth reaches 1.2 meters.
  • Page 14 ● An alarm will sound upon reaching the set depth. ● You can set up to 10 alerts, and 1 alarm. ● An alarm will sound upon reaching the set dive time. ● You can set up to 10 alerts, and 1 alarm. ●...
  • Page 15 ● When a dive depth exceeds 10 meters, ascending to 6 meters will activate the safety stop. ● The effective depth range for the safety stop is between 3 and 7 meters. If the depth exceeds this range, the countdown will stop.
  • Page 16 A notification will sound when the countdown is complete. ● When the NDL (No Decompression Limit) is below 3 minutes, an alert will sound every minute.
  • Page 17 ● Once the NDL reaches zero, the dive will enter decompression status (DECO). During ascent, you must stay close to the indicated depth and perform a decompression stop before surfacing to minimize the risk of decompression sickness. ● The screen indicates a 1-minute stop at 15 meters for decompression.
  • Page 18 ● A warning will sound when the CNS toxicity loading percentage reaches the set limit. ● An alarm will continuously sound if the partial pressure of oxygen (PPO₂) exceeds the safety limit (Maximum Operating Depth (MOD). Please ascend immediately. ● You can set a reminder for the surface rest time after ending a dive, to prepare for the next dive.
  • Page 19 From the dive screen, press the B button to enter the menu. You can choose between Air and Nitrox modes. For Nitrox, the oxygen percentage can be set from 22% to 40%. From the dive screen, press the B button to enter the menu. You can set the gas mixture for two tanks.
  • Page 20 ● Set Surface Rest Time ● Adjust Target Depth ● Calculated NDL (No Decompression Limit) ● Before the Dive: Enter the cylinder volume and starting pressure. ● After the Dive: Input the ending pressure before saving the log. ● This allows you to review the Surface Air Consumption (SAC) rate in the logbook.
  • Page 21 ● : Ascent too fast ● : Depth alert ● : Time alert ● : Safety stop ● Decompression Stop ● Press button to change pages. ● Press button to delete the log...
  • Page 22 to Switch Screens. press the B button to enter dive settings. ● GPS indicator (Green indicates successful GPS acquisition) ● Countdown timer (Press A to start, stop, or restart) ● Depth ● Water temperature ● Dive time ● Battery level...
  • Page 23 to switch screens. , press the B button to enter dive settings. ● GPS indicator (Green indicates successful GPS acquisition) ● Water temperature ● Surface time ● Average descent rate ● Average ascent rate ● Freefall pre-rate ● Freefall post-rate ●...
  • Page 24 ● The dive will automatically start when the descent depth reaches 1.2 meters. ● The dive will end when you ascend to 1.2 meters. An alert will be triggered when the set depth is reached during the descent. You can set up to 10 alerts.
  • Page 25 An alert will be triggered when the set depth is reached during ascent. You can set up to 10 alerts. An alert will be triggered when the set Freefall depth is reached during descent. When the set depth is reached, a countdown timer will start.
  • Page 26 A reminder will be triggered when the set dive time is reached. You can set up to 10 alerts. 1. Surface rest time is twice the dive time. 2. If the depth exceeds 30 meters, the reminder time is calculated as depth divided by 5 (in minutes).
  • Page 27 ● An alarm will sound when the battery is low. , press the B button to enter dive settings. ● : Press the to start or stop the mode. You can also set it to start automatically when reaching depth between 0.4m and 1m. ●...
  • Page 28 , press the B button to enter dive settings. : Press the to start or stop STA.
  • Page 29 ● Press the to start training. ● During the session, press the exit.
  • Page 30 ● Press the to enter settings. ● : Surface rest time. A reminder will trigger when the surface rest time reaches the set value. ● Press the to start, or set it for automatic start. ● : dive time. After each dive, press the or let it automatically switch to surface interval.
  • Page 31 ● : Depth alert ● : Time alert...
  • Page 32 ● Use GPS in open areas with a clear view of the sky to ensure accuracy. ● GPS works only on the water surface; keep the watch face up toward the sky. ● Use the ATMOS App's feature to speed up positioning.
  • Page 33 ● Displays the including those from the ATMOS database and custom-added locations. ● Selecting a dive spot shows its ● Keep the watch above the water surface to maintain navigation. ● After acquiring a GPS signal, you can save the current location's coordinates.
  • Page 34 The watch must remain on the water surface to maintain guidance. You can view custom dive site coordinates and edit their names via the ATMOS App: Your Device → Device Dive Sites. After diving, residual nitrogen remains in the body. To avoid decompression sickness caused by pressure differences:...
  • Page 35 : A 24-hour countdown will start after a dive. : A 12-hour countdown will activate. Once the countdown is finished. icon will disappear. press the A or C button to toggle through widgets. ○ In the Last Dive widget, you can view your surface interval time.
  • Page 36 When using auto dive, the device measures water pressure every 10 seconds, which may result in a delay of up to 10 seconds before entering dive mode during descent. Due to the presence of various magnetic interference sources in everyday environments, it is recommended to calibrate the compass before every dive.
  • Page 37 For detailed information, please refer to: Steps & Calories The total number of dives includes both scuba dives and freediving sessions. The depth of the previous dive (if measured in meters, values will be rounded to the nearest whole number). View last dive info, No fly time and Surface time (Surface interval) ●...
  • Page 38 ● In the time mode, press the A or to toggle through the widgets and view information. If set to display only calls, the watch will show only phone calls and SMS messages, and will not display app notifications. ● Press the >...
  • Page 39 ● ● Pair with the and download tidal information. ● In the time mode, press to toggle through the widgets and view information. Since the service provider may not cover all information stations, local tidal data may not always be available. The device's battery life depends on settings such as screen brightness, screen on time, Bluetooth, vibration, sound, GPS, wrist raise screen, and other factors.
  • Page 40 : Use the charging cable to connect the device. The computer will detect MISSION3 as a device, displaying a folder named : Visit the ATMOS support page to download the latest firmware file for MISSION3. Extract the file and copy the file to the...
  • Page 41 Please check regularly for wear, and replace them if worn. You can purchase replacements from an authorized dealer or ATMOS. Push the spring clasp of the watch strap to the right, then lift it up to remove the strap. To replace it with another style strap, use the strap pins provided.
  • Page 42 Watch mode: Up to 12 days BATTERY LIFE Smartwatch mode: Up to 9 days Dive mode: Up to 14 hours (brightness level: low) CHARGING METHOD USB Type-C / 5V-9V DC / 3A LANGUAGES EN｜KO｜JA｜ZH-CN｜ZH-TW METRIC AND IMPERIAL ✔ UNITS MEMORY/ HISTORY 1000 logs FIRMWARE OTA｜USB Type-C...
  • Page 43 SMART NOTIFICATIONS ✔ ✔ WEATHER ✔ TIDE TABLES SINGLE GASS MODE ✔ (Air, Nitrox O2 up to 40%) ✔ MULTI-GAS MODE (2 gasses, Air, Nitrox O2 up to 50%) ✔ GAUGE MODE DECOMPRESION MODEL Bühlmann ZHL-16c (GF configurable) ✔ (Up to 2.0) ✔...
  • Page 44 (10 sets each) FREEDIVE ALERTS & Freefall depth｜Keep depth｜Surface time｜Hydration｜Low ALARMS battery FREEDIVE SAFETY ✔ STOPWATCH ✔ DIGITAL DIVE LOGBOOK (ATMOS App) STEP COUNTER ✔ ✔ STEP GOAL ✔ CALORIES BURNED SLEEP TRACKING ✔ ( sleep time and sleep quality) Certified low-power radio devices must not have their frequency, power, or design altered...
  • Page 45 This device has no user-serviceable parts. Repairs and battery replacement can only be performed by ATMOS. Do not tighten or remove screws; any signs of modification will void the warranty. For any after-sales or repair requests, please contact the dealer or regional distributor from whom you purchased the device.