Garmin DESCENT 12 Owner's Manual
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Garmin DESCENT 12 Owner's Manual

Garmin DESCENT 12 Owner's Manual

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DESCENT
T2
™
Owner's Manual

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Summary of Contents for Garmin DESCENT 12

  • Page 1 DESCENT ™ Owner’s Manual...
  • Page 2 © 2023 Garmin Ltd. or its subsidiaries All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Garmin. Garmin reserves the right to change or improve its products and to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements. Go to www.garmin.com...

  • Page 3: Table Of Contents

    Watch............9 Viewing Transceiver Data During a Dive............11 Updating the Transceiver Software Using Your Watch..........11 Pairing the Transceiver with the Garmin Dive App..........12 Device Information......12 Replacing the Descent T2 Transceiver Battery............ 12 Descent T2 Device Care....... 13 Specifications........

  • Page 5: Introduction

    Introduction WARNING See the Important Safety and Product Information guide in the product box for product warnings and other important information. Installation and Setup CAUTION To ensure proper setup and best performance, it is strongly recommended that you complete the first time installation and setup at a dive shop.
  • Page 6 • For the best reception, you should wear the tank high on your back. This allows the transceiver to have a clear line of sight over your shoulders. • You should install the transceiver at least 7 cm (3 in.) from your body. • If you wear your tank inverted with the regulator at the bottom, you can use a high-pressure hose to relocate the transceiver to have a clear line of sight over your shoulders.
  • Page 7 Installation and Setup...

  • Page 8: Installing The Transceiver On Your Tank Regulator

    Installing the Transceiver on Your Tank Regulator WARNING Always use the pre-installed flow restrictor when using the transceiver directly attached to your regulator. Always use the included air spool when connecting the transceiver to a high pressure hose extension (Installing the Transceiver on a High Pressure Hose Extension, page 5).

  • Page 9: Installing The Transceiver On A High Pressure Hose Extension

    Installing the Transceiver on a High Pressure Hose Extension WARNING Always use the pre-installed flow restrictor when using the transceiver directly attached to your regulator (Installing the Transceiver on Your Tank Regulator, page 4). Always use the included air spool when connecting the transceiver to a high pressure hose extension.
  • Page 10 3 Detach the first-stage regulator from the scuba cylinder and second-stage regulator. 4 Remove the port plug from the high-pressure output port. 5 Connect a high-pressure hose extension to the high-pressure output port. Installation and Setup...

  • Page 11: Diving

    6 Screw the transceiver onto the high pressure hose extension until you feel resistance. WARNING Verify the installed transceiver does not physically interfere with any hoses or other tank assemblies. 7 Use an open-ended wrench to tighten the transceiver until it is secure. NOTICE To prevent damage to the transceiver and possible loss of function, do not overtighten.

  • Page 12: Dive Warnings

    The transceiver plays a tone when it wakes from low power mode and is ready to connect to your Descent watch (Pairing the Transceiver with a Descent Watch, page 9) or phone (Pairing the Transceiver with the Garmin Dive App, page 12). Diving...

  • Page 13: Pairing The Transceiver With A Descent Watch

    Before you use the transceiver for the first time, you must pair it with the a compatible Descent watch using ANT technology. For more information about compatible watch models, go to the Descent T2 transceiver product page on garmin.com. 1 Wake the transceiver from low power mode (Waking the Transceiver from Low Power Mode, page 8).
  • Page 14 Selecting Transceivers to View During a Dive You can view two paired transceivers at-a-glance on the primary dive data screen. You can customize which paired transceivers appear on the screen. By default, the first and second transceivers that you pair appear (Viewing Transceiver Data During a Dive, page 11).

  • Page 15: Viewing Transceiver Data During A Dive

    The Garmin Dive app and Garmin Express application automatically look for software updates. When you sync with the Garmin Dive app, you will be prompted to apply the update at a later time. When you sync with the Garmin Express application, the update is applied immediately to your watch.

  • Page 16: Pairing The Transceiver With The Garmin Dive App

    Pairing the Transceiver with the Garmin Dive App You can pair the transceiver with the Garmin Dive app to receive software updates using Bluetooth technology. 1 Wake the transceiver from low power mode (Waking the Transceiver from Low Power Mode, page 8).

  • Page 17: Descent T2 Device Care

    Inspect parts before each use for damage. Replace parts as Inspection interval needed. The device withstands pressure equivalent to a depth of 200 m. For more information, go to www.garmin.com/waterrating. Aside from normal wear and tear, performance is not affected by aging. Device Information...

  • Page 18: Troubleshooting

    • Go to support.garmin.com for additional manuals, articles, and software updates. • Go to buy.garmin.com, or contact your Garmin dealer for information about optional accessories and replacement parts. Dive Product and Feature Compatibility You can pair multiple Descent devices to form a dive network for you and your fellow divers.

  • Page 19: Transceiver Alerts

    Transceiver Alerts Alert Message Cause Device Action Your paired watch has lost communication None The tank pressure value flashes yellow. with the transceiver for 30 seconds. The tank pressure value turns yellow. Your tank pressure is below the reserve %1 is below pressure level.

  • Page 20: My Transceiver Battery Is Draining Rapidly

    Adjusting the Transceiver Power Setting NOTE: Increasing the power setting increases the audible noise and transmission range of the transceiver and decreases its battery life. 1 Hold MENU. 2 Select Dive Setup > Dive Network & Air Integration > Transmitters. 3 Select a paired transceiver.
  • Page 22 November 2023 GUID-55C588E7-3BD7-436C-B442-84E4388D43E2 v1...

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