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Fig. 3.7. Low Battery Warning. Battery symbol indicates that the battery is low and battery replacement is recommended.

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Fig. 3.8. Bookmark activation. An annotation, Bookmark, is placed in the profile memory during a dive by pressing the S button (Displayed with the Diver attention symbol.)

ing may also be displayed at low temperatures, even though the battery has enough capacity in warmer conditions. In these cases repeat the battery check procedure.

After the battery check the Low Battery Warning is indicated by the battery symbol (Fig. 3.7.).

If the battery symbol is displayed in the Surface mode or if the display is faded or weak, the battery may be too low to operate the dive computer and battery replacement is recommended.

NOTE: For safety reasons the backlight cannot be activated when the low battery warning is indicated by the battery symbol. The Battery Power Indicator is displayed only in Gauge Mode. The Low Battery symbol is displayed in both Free and Gauge Modes.

3.1.3.USER DEFINABLE FUNCTIONS AND ALARMS

This D3 has several User Definable Functions and depth and time related alarms that you can set accord- ing to your personal preference. For example the D3 has a patented presetting system for the User Defin- able Display Field in the lower part of the display.

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Suunto D3 manual User Definable Functions and Alarms
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D3 specifications

The Suunto D3 is a versatile dive computer designed for both novice and seasoned divers. With a focus on simplicity and reliability, the D3 offers key features that enhance the underwater experience while ensuring safety. It combines advanced technology with an intuitive interface, making it an essential tool for divers.

One of the standout features of the Suunto D3 is its ability to function in multiple modes, including freedive, scuba, and gauge modes. This versatility allows divers to adapt the device based on their chosen activity. In scuba mode, the D3 provides essential information such as current depth, dive time, and no-decompression limits, while the freedive mode is tailored for those looking to monitor their performance during breath-holding dives. The gauge mode is particularly useful for technical dives where external decompression tables might be utilized.

The Suunto D3 is equipped with a user-friendly interface that incorporates a large, clear display, ensuring visibility in various underwater conditions. The screen is designed to be easy to read, featuring bold digits and an organized layout that allows users to quickly access critical dive data. Additionally, the adjustable backlight ensures that divers can easily read the device in low-light conditions.

In terms of construction, the Suunto D3 is built for durability. It features a rugged casing and scratch-resistant mineral glass, allowing it to withstand the demanding conditions of underwater environments. The device is also lightweight, making it comfortable to wear for extended periods, whether diving or engaging in other activities.

Another notable characteristic of the Suunto D3 is its battery life. Designed for long dives, it has an impressive battery that can last through multiple dive sessions before requiring a replacement. This feature alleviates any concerns about the device shutting down in the middle of a dive, providing divers with peace of mind.

Incorporating Suunto’s advanced dive algorithms, the D3 ensures that divers receive accurate and reliable data throughout their underwater excursions. With its combination of robust features, ease of use, and rugged design, the Suunto D3 remains a popular choice among divers who seek a dependable dive computer to accompany them on their underwater adventures. Whether it’s exploring coral reefs or navigating deeper waters, the Suunto D3 is a trustworthy companion that merges performance with simplicity, allowing divers to focus on the beauty of the underwater world.
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