User ManualTable of Contents1. INTRODUCTION81.1. SAFETY PRECAUTIONS81.1.1. Emergency Ascents91.1.2. Freediving92. GETTING ACQUAINTED112.1. FUNCTIONS112.2. PUSH BUTTONS112.3. WATER CONTACTS132.4. TIME MODE [TIME]142.4.1. Timekeeping Display142.4.2. Stopwatch [TIMEr UP]153. DIVING WITH THE D3183.1 BEFORE DIVING193.1.1. Activation and Pre-checks193.1.2. Battery Power Indicator and Low Battery Warning203.1.3. User Definable Functions and Alarms223.1.3.1. Presetting Time Alarm233.1.3.2. Presetting Dive Alarms233.1.4. Bookmark Function233.2. FREEDIVING243.2.1 Before Diving in the Free Mode243.2.2 Presetting the Displays in the Free Mode243.2.3 During the Freedive253.3. GAUGE DIVING283.3.1. Maximum Operating Depth Planner [MOD]283.3.2. Presetting the Displays in the Gauge Mode293.3.3. Basic Dive Data303.3.4. Ascent Rate Indicator313.3.5. Surface Interval After a Gauge dive323.3.6. Dive Numbering333.3.7. Flying After Diving343.4. AUDIBLE AND VISUAL ALARMS354. SETTING MODE [SET]374.1. SETTING TIME, DATE AND DUAL TIME [TIME ]374.2. DAILY ALARM SETTING [ALM]394.3. TIMER SETTINGS [TIMER D]414.4. DIVE MODE SETTINGS [DIVE]424.4.1. Set Gauge Mode424.4.2. Set Free Mode444.5. DIVE ALARM SETTINGS [DIVE AL]454.6. UNIT ADJUSTMENT SETTINGS[AdJ]475. MEMORY AND DATA TRANSFER [MEM]485.1. LOGBOOK AND DIVE PROFILE MEMORY [LOG]495.2. DIVE HISTORY MEMORY [HIS]535.3. DATA TRANSFER AND PC-INTERFACE [TR-PC]555.4. SUUNTOSPORTS.COM576. CARE AND MAINTENANCE616.1. CARE OF YOUR D3616.2. MAINTENANCE626.3. WATER RESISTANCE INSPECTION636.4. BATTERY REPLACEMENT647. TECHNICAL SPECIFICATION678. WARRANTY719. GLOSSARY73Size: 1.53 MBPages: 86Language: EnglishOpen manual