Cressi Leonardo Dive Computer Manual
The Cressi Leonardo dive computer is a sophisticated and complete instrument designed to ensure maximum safety and efficiency. It is ideal for both novice divers and those who just want to dive. The one-button interface makes it easy to program Air, Nitrox and Gauge modes the first time a diver picks up the computer, while the high-definition, edge-to-edge screen offers extensive numerical displays in a computer that is still compact and easy to carry. The Leonardo features a new Cressi RGBM algorithm, created with expert input from Bruce Wienke and based on a model. It is ideal for other aquatic activities, thanks to the dive function deactivation option, which avoids unnecessary alarms when snorkeling or swimming. The display is high contrast. The durable construction makes it ideal for all types of diving, from recreational to technical. The Leonardo is a must-have for divers entering the sport and those who just want to dive.
Introduction
The Cressi Leonardo Dive Computer is a sophisticated and complete instrument designed to ensure maximum safety and efficiency for divers of all levels. It features a user-friendly interface and advanced features that make it a great choice for both recreational and technical diving. This manual provides comprehensive information on the operation, programming, and maintenance of the Cressi Leonardo dive computer. It is crucial for divers to familiarize themselves with this manual before using the Leonardo to ensure safe and enjoyable dives.
The Leonardo dive computer is an essential tool for any diver, offering vital information about depth, time, air consumption, and other important dive parameters. This manual will guide you through the various features and functions of the Leonardo dive computer, helping you understand how to use it effectively and safely. The Leonardo is packed with features designed to enhance your diving experience, including a clear and easy-to-read display, intuitive controls, and a range of dive modes. By reading and understanding this manual, you will be equipped to maximize the potential of your Leonardo dive computer and enjoy a safe and enjoyable underwater experience.
Features and Benefits
The Cressi Leonardo dive computer is packed with features and benefits that make it a versatile and reliable companion for divers of all levels. Some key features include⁚
- One-button interface⁚ The Leonardo’s simple and intuitive one-button interface makes it easy to navigate and program, even for novice divers.
- Multi-mode operation⁚ The Leonardo supports Air, Nitrox, and Gauge modes, allowing you to adapt to various diving scenarios.
- High-definition display⁚ The Leonardo boasts a large, high-definition display that provides clear and comprehensive dive data, including depth, time, air pressure, and more.
- Dive function deactivation⁚ The Leonardo can be deactivated for other water activities, such as snorkeling or swimming, preventing unnecessary alarms.
- Data logging and review⁚ The Leonardo logs dive data for later review, allowing you to analyze your dives and track your progress.
- RGBM algorithm⁚ The Leonardo incorporates a new Cressi RGBM algorithm, developed with expert input from Bruce Wienke, for enhanced safety and accuracy.
- Compact and lightweight⁚ The Leonardo is designed to be compact and lightweight, making it comfortable to wear and easy to carry.
These features combine to offer divers a reliable, user-friendly, and feature-rich dive computer that enhances safety, provides valuable dive data, and simplifies the diving experience.
Programming the Leonardo
Programming the Cressi Leonardo dive computer is a straightforward process, thanks to its user-friendly interface. Here’s a step-by-step guide to get you started⁚
- Power On⁚ Press and hold the single button on the computer to power it on. The display will light up, indicating the computer is ready for programming.
- Select Dive Mode⁚ The Leonardo offers three primary dive modes⁚ Air, Nitrox, and Gauge. To choose your preferred mode, press the button repeatedly until the desired mode is displayed on the screen.
- Set Parameters⁚ Depending on the selected dive mode, you’ll need to set specific parameters. For Air mode, you’ll likely need to set the tank pressure. For Nitrox mode, you’ll need to set the oxygen percentage. For Gauge mode, you may need to adjust the depth gauge settings.
- Confirm Settings⁚ Once you’ve set the desired parameters, press and hold the button to confirm your settings and activate the dive mode.
- Dive Time and Depth⁚ The Leonardo will automatically track your dive time and depth, displaying this information on the screen. You can easily navigate between different data screens by pressing the button.
The Leonardo’s intuitive interface and clear instructions make programming a breeze, allowing you to focus on enjoying your dive.
Dive Modes
The Cressi Leonardo dive computer offers three distinct dive modes, catering to various diving scenarios. Each mode is designed to provide specific information and features relevant to the chosen diving activity⁚
- Air Mode⁚ This is the most common mode, ideal for dives using compressed air as the breathing gas. In Air mode, the Leonardo tracks your dive time, depth, ascent rate, and other essential data. It also provides warnings for exceeding safe dive parameters, ensuring a secure diving experience.
- Nitrox Mode⁚ For dives using enriched air nitrox (EANx) as the breathing gas, the Nitrox mode comes into play. This mode allows you to program the oxygen percentage of your nitrox mix, enabling the computer to calculate your no-decompression limits (NDLs) and other relevant information specific to nitrox diving.
- Gauge Mode⁚ Designed for dives where you are using a separate pressure gauge to monitor your air supply, Gauge mode focuses on depth tracking. The Leonardo will display your current depth and ascent/descent rates, providing essential information for safe underwater navigation.
The Leonardo’s ability to switch between these dive modes provides flexibility and adaptability for a wide range of diving activities, making it a versatile and reliable companion for underwater explorations.
Data Logging and Review
The Cressi Leonardo dive computer boasts a comprehensive data logging system, allowing you to track and review your diving adventures. The Leonardo can store data for up to 60 dives or 70 hours of dive time, providing a detailed record of your underwater explorations. This data logging feature is invaluable for divers who want to analyze their dives, monitor their progress, and ensure they are staying within safe diving parameters.
To access and review your logged dive data, the Leonardo offers a user-friendly interface. You can easily navigate through your dive logs, viewing key information such as⁚
- Dive Date and Time⁚ Precisely pinpoint when each dive took place.
- Maximum Depth Reached⁚ Track your deepest dives and monitor your progress.
- Dive Time⁚ See how long you spent underwater for each dive.
- Average Depth⁚ Get an overall picture of your dive profile.
- Ascent Rate⁚ Ensure you are ascending safely and within recommended guidelines.
- Surface Time⁚ Monitor the time spent at the surface after each dive.
This data logging and review functionality empowers divers to gain valuable insights into their diving habits, enhance their safety, and make informed decisions about their future underwater explorations.
Maintenance and Care
Proper maintenance and care are essential to ensure the longevity and optimal performance of your Cressi Leonardo dive computer. Follow these guidelines to keep your dive computer in top condition⁚
- Rinse After Each Dive⁚ After every dive, thoroughly rinse your Leonardo with fresh water to remove any salt, sand, or other debris that could damage the internal components. Use a gentle stream of water and avoid submerging the computer in water while rinsing.
- Avoid Extreme Temperatures⁚ Protect your Leonardo from extreme temperatures, both hot and cold. Do not leave it in direct sunlight or in a very cold environment. Excessive heat or cold can affect the battery life and performance of the computer.
- Clean the Display⁚ The Leonardo’s high-contrast display can be easily cleaned with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners that could scratch the screen.
- Battery Replacement⁚ When the battery indicator signals low battery, replace the battery promptly. Use only the recommended battery type for your Leonardo. Improper battery installation or use of incompatible batteries can damage the computer.
- Store Properly⁚ When not in use, store your Leonardo in a cool, dry place. Keep it away from moisture and direct sunlight.
By following these simple maintenance tips, you can ensure that your Cressi Leonardo dive computer continues to provide you with accurate and reliable data for many dives to come.
Troubleshooting
While the Cressi Leonardo dive computer is designed for reliability, occasional issues may arise. Here are some common troubleshooting steps to help you resolve problems⁚
- Battery Issues⁚ If your Leonardo is not powering on or displays a low battery icon, first ensure you are using the correct battery type. If the battery is new, try replacing it to rule out a faulty battery. If the issue persists, the battery compartment may need cleaning or the battery contacts may require cleaning.
- Display Problems⁚ If the display is blank or shows strange characters, check if the display is dirty or scratched. Clean the display gently with a soft cloth. If the problem continues, the display may be damaged and require professional repair.
- Incorrect Readings⁚ If the dive computer is giving inaccurate readings, ensure that the settings are correctly configured for your dive. Double-check the dive mode, gas mix, and altitude settings. If the readings are still incorrect, the computer may need recalibration.
- Water Ingress⁚ If you suspect water has entered the computer, immediately remove the battery and allow the computer to dry completely. Avoid using heat sources to dry the computer. If the computer still shows signs of water damage, seek professional repair.
- Software Issues⁚ If the computer is experiencing software glitches, a factory reset might resolve the problem. Refer to the user manual for instructions on performing a factory reset. If the issue persists, contact Cressi customer support for assistance.
Remember, if you are unable to resolve the issue through these steps, it is crucial to contact Cressi customer support or a qualified dive professional for further assistance.
Safety Precautions
The Cressi Leonardo dive computer is a valuable tool for enhancing your diving experience, but it’s essential to use it responsibly and prioritize safety. Here are some important safety precautions to keep in mind⁚
- Proper Training⁚ Before using the Leonardo, ensure you have received adequate scuba diving training from a certified instructor. The Leonardo is not a substitute for proper diving knowledge and skills.
- Dive Buddy⁚ Always dive with a buddy. This is crucial for safety and helps ensure assistance if needed.
- Dive Planning⁚ Plan your dives carefully, considering factors like dive site conditions, depth, dive time, and gas consumption. Use the Leonardo to monitor your dive parameters and stay within safe limits.
- Nitrox Use⁚ If you are using Nitrox, ensure you are properly trained and understand the risks associated with Nitrox diving. The Leonardo can be programmed for Nitrox dives, but it’s essential to use it correctly.
- Oxygen Setting⁚ The Leonardo always keeps the latest oxygen setting set. It is crucial for diver safety to always check this parameter before each dive.
- Decompression Stops⁚ The Leonardo can provide decompression stop information. Always adhere to the computer’s recommendations for decompression stops and never skip them.
- Emergency Procedures⁚ Be familiar with emergency procedures for scuba diving, including ascent rates, buddy breathing, and using your emergency ascent device.
- Computer Maintenance⁚ Regularly check the Leonardo for any signs of damage or malfunction. Replace the battery when needed and keep the computer clean and dry.
Remember, diving is an inherently risky activity. Always prioritize safety and use the Cressi Leonardo as a tool to enhance your diving experience, not as a substitute for good judgment and proper training.
Specifications
The Cressi Leonardo dive computer is a sophisticated and well-equipped tool for divers, offering a range of features and specifications designed to enhance your diving experience. Here’s a breakdown of some key specifications⁚
- Dive Modes⁚ Air, Nitrox, Gauge
- Depth Measurement⁚ Up to 120 meters (394 feet)
- Dive Time⁚ Up to 70 hours of log data
- Dive Log⁚ Stores data for up to 60 dives or 70 hours
- Decompression Algorithm⁚ Cressi RGBM (Reduced Gradient Bubble Model)
- Display⁚ High-definition, edge-to-edge screen with extensive numerical displays
- Interface⁚ One-button operation for easy programming and navigation
- Battery Life⁚ Up to 2 years (depending on usage)
- Dimensions⁚ 45 x 52 x 18 mm (1.8 x 2.0 x 0.7 inches)
- Weight⁚ 70 grams (2.5 ounces)
- Materials⁚ Durable, water-resistant construction
These specifications highlight the Leonardo’s capabilities and its suitability for a wide range of divers, from beginners to experienced enthusiasts. The combination of features, user-friendly design, and robust construction make it a reliable and versatile dive computer.