SEAC Action HR Dive Computer User Manual

1. Introduktion

The SEAC Action HR is a versatile wrist-mounted dive computer designed for both recreational scuba diving and freediving activities. It offers comprehensive dive management, logbook functionality, and essential safety alarms to enhance your underwater experience. This manual provides detailed instructions for setting up, operating, and maintaining your SEAC Action HR dive computer.

Billede 1.1: Forside view of the SEAC Action HR Dive Computer, displaying its clear LCD screen and control buttons.

2. Opsætning

2.1. Batteriinstallation

The SEAC Action HR uses a long-lasting CR2450 battery. To install or replace the battery, carefully unscrew the battery cover located on the back of the unit. Insert the new CR2450 battery with the positive (+) side facing up. Ensure the O-ring is clean and properly seated before securely fastening the battery cover. This ensures the unit's water resistance.

Billede 2.1: Bagside view of the SEAC Action HR, highlighting the stainless steel case back and battery compartment.

2.2. Første opstart og grundlæggende indstillinger

Upon first power-on or after battery replacement, the device will prompt you to set basic parameters such as time, date, and measurement units (metric/imperial). Use the control buttons (typically labeled "MODE", "LIGHT", "ST/STP/+", "RESET/-") to navigate through the menus and adjust settings. Refer to the on-screen prompts for guidance.

3. Driftstilstande

The SEAC Action HR features three primary operating modes:

3.1. Dive Mode (Scuba)

This mode provides full management of recreational immersion profiles. It utilizes the Bühlmann ZHL-16c decompression algorithm and supports 1 or 2 gas mixes, including Air, Nitrox, and mixes with O2 concentrations up to 99%. Key information displayed includes current depth, dive time, no-decompression limit (NDL), ascent rate, and safety stop information.

3.2. Gauge Mode

In Gauge Mode, the computer functions as a depth gauge and stopwatch, allowing independent management of immersion profiles. This mode is suitable for technical diving or situations where a simple depth and time reference is preferred without decompression calculations.

3.3. Freediving Mode

Designed for freediving, this mode tracks dive time, surface interval time, current depth, and maximum depth achieved during a freedive. It provides essential data for monitoring freediving performance and recovery times.

Image 3.1: Close-up of the SEAC Action HR display, showing various dive metrics such as depth, time, and NDL.

Image 3.2: A diver wearing the SEAC Action HR on their wrist, demonstrating its practical use during a dive.

4. Logbook and Data Management

The SEAC Action HR stores your dive data in its internal logbook:

• Dive Mode Logbook: Stores up to 40 hours of dive data with records taken every 5 seconds.
• Freediving Mode Logbook: Stores up to 18 hours of activity with records taken every 2 seconds.

To download your dive data, connect the computer to your Mac or PC using a compatible USB cable (sold separately). The "Dive Manager" software is available for free download from the official Seacsub.com website. Please note that the software requires a minimum of Windows 10 for PC compatibility.

5. Sikkerhedsfunktioner og alarmer

The SEAC Action HR is equipped with several safety features and audible/visual alarms to ensure a safe diving experience:

• MOD (Maximum Operating Depth) Alarm: Alerts you when you exceed the programmed maximum operating depth for your gas mix.
• Decompression Stop Violation Alarm: Warns if a required decompression stop is missed or violated.
• Ascent Rate Alarm: Notifies you if your ascent rate is too fast, helping to prevent decompression sickness.
• No-Fly Time Calculation: Provides the recommended surface interval before flying after a dive.
• Desaturation Time Calculation: Indicates the time required for your body to desaturate from nitrogen.
• Maximum Allowed Altitude: Displays the maximum altitude at which the computer can be safely used for diving.
• Dive Planner ("NDL Only"): A planning tool to calculate no-decompression limits for future dives.

6. Vedligeholdelse

6.1. Post-Dive Care

After each dive, rinse your SEAC Action HR thoroughly with fresh water to remove salt, sand, and other debris. Pay special attention to the buttons and the strap. Allow the unit to air dry completely before storage. Avoid using harsh chemicals or abrasive materials for cleaning.

6.2. Udskiftning af batteri

The CR2450 battery is designed for long life. When the low battery indicator appears, replace the battery promptly to ensure continuous operation and data integrity. Always use a new, high-quality CR2450 battery and ensure the O-ring is clean and properly sealed during reassembly to maintain water resistance.

6.3. Opbevaring

Store the dive computer in a cool, dry place away from direct sunlight and extreme temperatures. Ensure it is clean and dry before storing for extended periods.

The SEAC Action HR features an ultra-robust structure, treated for enhanced resistance to impacts, corrosion, and thermal variations. However, proper care is still essential for its longevity.

7. Fejlfinding

If you encounter issues with your SEAC Action HR, consider the following common troubleshooting steps:

• Skærm virker ikke: Check the battery level. If low, replace the CR2450 battery. Ensure the battery is inserted correctly and the battery cover is securely closed.
• Upræcise læsninger: Ensure the unit is properly calibrated (if applicable, though typically dive computers are factory calibrated). Verify that the correct measurement units are selected.
• Korrosion: While designed for resistance, prolonged exposure to saltwater without proper rinsing can lead to corrosion. Ensure thorough rinsing with fresh water after every use. If corrosion is visible, contact SEAC customer support.
• Problemer med datadownload: Verify that the USB cable is correctly connected and the Dive Manager software is installed and up-to-date on your computer (Windows 10 minimum).

For further assistance or issues not covered here, please visit the official Seacsub.com website for support resources or contact SEAC customer service directly.

8. Specifikationer

Below are the technical specifications for the SEAC Action HR Dive Computer:

Billede 8.1: Detaljeret view of the SEAC Action HR display, illustrating screen size and overall dimensions.

9. Garanti og support

The SEAC Action HR Dive Computer typically comes with a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Seacsub.com webhjemmeside for detaljerede garantivilkår.

For technical support, software downloads, or any inquiries regarding your SEAC Action HR, please visit the support section of the Seacsub website or contact their customer service department. Keeping your product registered, if applicable, can facilitate support processes.