EN SUUNTO GEKKO USER'S GUIDE Arrows: - Decompression Stop at the Ceiling Depth - Mandatory Safety Stop Zone - Ascent Recommended - Must Descend Safety Stop Warning Safety Stop Indicator Fast Ascent Warning (SLOW) Maximum Depth Ceiling Depth on Decompression Mandatory Safety Stop Depth Average Depth on Logbook Oxygen Partial Pressure AM/PM Indicator Present Depth Dive Counter Logbook Symbol DIVE CEILING Dive Attention Symbol m ft Bar Graph: - Mode Indicator - Consumed Botton Time - Oxygen Limit Fraction Bar Graph: - Ascent Rate Indicator - Battery Power Indicator - Logbook Page Indicator NO O2%SURF OK SELECT Quick reference guide Gekko Do Not Fly Icon S L O AVGPO2 MAX W STOP ASC TIME QUIT Current Time Display Surface Interval Time No Flying Time No-Decompression Time Total Ascent Time Safety Stop Time The Smart Button: - Activation - Mode Operations Indicators for the Smart Button Oxygen Percentage in Nitrox Mode TIME NO DEC TIME High Altitude Mode Personal Adjustment Mode OLF C B T °F°C DIVE TIME Low Battery Warning Dive Time Time Month,Day DiveTime/Depth Alarm On Indicator OPTIONS Temperature Week Day Mode Text Indicators for the Scroll Buttons Dive Planning Button Scroll Button (increase value, ascend) Time (alternative display) Button Scroll Button (decrease value, descend) DEFINITION OF WARNINGS, CAUTIONS AND NOTES Throughout this manual, special references are made when deemed important. Three classifications are used to separate these references by their order of importance. WARNING is used in connection with a procedure or situation that may result in serious injury or death. CAUTION is used in connection with a procedure or situation that will result in damage to the product. NOTE is used to emphasize important information. COPYRIGHT, TRADEMARK AND PATENT NOTICE This instruction manual is copyrighted and all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any media without prior written consent from SUUNTO. SUUNTO, GEKKO, Consumed Bottom Time (CBT), Oxygen Limit Fraction (OLF), SUUNTO Reduced Gradient Bubble Model (RGBM), Continuous Decompression and their logos are all registered or unregistered trademarks of SUUNTO. All rights are reserved. CE The CE mark is used to mark conformity with the European Union EMC directive 89/336/EEC. The instruments must be serviced by an authorized dealer every second year or after 200 dives (whichever comes first). EN 13319 EN 13319 "Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and safety requirements, test methods" is a European diving depth gauge standard. The GEKKO is designed to comply with this standard. 1 ISO 9001 SUUNTO Oy's Quality Assurance System is certified by Det Norske Veritas to be according to the ISO 9001 in all SUUNTO Oy's operations (Quality Certificate No. 96-HEL-AQ-220). SUUNTO Oy does not assume any responsibility for losses or claims by third parties, which may arise through the use of this device. Due to continuous product development, the GEKKO is subject to change without notice. 2 WARNING! READ THIS MANUAL! Carefully read this instruction manual in its entirety paying close attention to all warnings listed below, including section 1.1. "Safety Precautions". Make sure that you fully understand the use, displays and limitations of the dive computer because any confusion resulting from neglecting to follow this instruction manual or from improper use of this device may cause a diver to commit errors that may lead to serious injury or death. WARNING! NOT FOR PROFESSIONAL USE! Suunto dive computers are intended for recreational use only. The demands of commercial or professional diving may expose the diver to depths and exposures that tend to increase the risk of decompression illness (DCI). Therefore, Suunto strongly recommends that the device be not used for commercial or professional diving activity. WARNING! ONLY DIVERS TRAINED IN THE PROPER USE OF SCUBA DIVING EQUIPMENT SHOULD USE A DIVE COMPUTER! No dive computer can replace the need for proper dive training. Insufficient or improper training may cause diver to commit errors that may lead to serious injury or death. WARNING! THERE IS ALWAYS A RISK OF DECOMPRESSION ILLNESS (DCI) FOR ANY DIVE PROFILE EVEN IF YOU FOLLOW THE DIVE PLAN PRESCRIBED BY DIVE TABLES OR A DIVE COMPUTER. NO PROCEDURE, DIVE COMPUTER OR DIVE TABLE WILL PREVENT THE POSSIBILITY OF DCI OR OXYGEN TOXICITY! An individual's physiological make up can vary from day to day. The dive computer cannot account for these variations. You are strongly advised to remain well within the exposure limits provided by the instrument to minimize the risk of DCI. As an added measure of safety, you should consult a physician regarding your fitness before diving. 3 WARNING! SUUNTO STRONGLY RECOMMENDS THAT SPORT DIVERS LIMIT THEIR MAXIMUM DEPTH TO 40 M [130 FT] OR TO THE DEPTH CALCULATED BY THE COMPUTER BASED ON THE SELECTED O2% AND A MAXIMUM PO2 OF 1.4 BAR! WARNING! DIVES WITH REQUIRED DECOMPRESSION STOPS ARE NOT RECOMMENDED. YOU SHOULD ASCEND AND BEGIN DECOMPRESSION IMMEDIATELY WHEN THE DIVE COMPUTER SHOWS YOU THAT A DECOMPRESSION STOP IS REQUIRED! Note the blinking ASC TIME symbol and the upward pointing arrow. WARNING! USE BACK-UP INSTRUMENTS! Make sure that you use back-up instrumentation including a depth gauge, submersible pressure gauge, timer or watch, and have access to decompression tables whenever diving with the dive computer. WARNING! PERFORM PRECHECKS! Always activate and check the device before diving in order to ensure that all Liquid Crystal Display (LCD) segments are completely displayed, that the device has not run out of battery power, and that the oxygen, altitude and personal adjustments are correct. Also, exit the PC Settings (PC SET) sub-mode before diving, as the computer does not automatically revert to Dive mode from the PC Settings mode. WARNING! YOU ARE ADVISED TO AVOID FLYING ANY TIME THE COMPUTER COUNTS DOWN THE NO-FLYING TIME. ALWAYS ACTIVATE THE COMPUTER TO CHECK THE REMAINING NO-FLY TIME PRIOR TO FLYING! The computer goes into the stand-by display automatically 5 minutes after the dive has ended. The stand-by display shuts off after two hours. Flying or traveling to a higher altitude within no-fly time can greatly increase the risk of DCI. Review the recommendations given by Diver's Alert Network (DAN) 4 in chapter 3.5.3. "Flying After Diving". There can never be a flying after diving rule that is guaranteed to completely prevent decompression illness! WARNING! THE DIVE COMPUTER SHOULD NEVER BE TRADED OR SHARED BETWEEN USERS WHILE IT IS IN OPERATION! Its information will not apply to someone who has not been wearing it throughout a dive or sequence of repetitive dives. Its dive profiles must match that of the user. If it is left on the surface during any dive, it will give inaccurate information for subsequent dives. No dive computer can take into account dives made without the computer. Thus any diving activity up to four days prior to initial use of the computer may cause misleading information and must be avoided. WARNING! THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL PERCENTAGE VALUES OF OXYGEN CONCENTRATION. DO NOT ROUND UP FRACTIONAL PERCENTAGES! For example, 31.8% oxygen should be entered as 31%. Rounding up will cause nitrogen percentages to be understated and will affect decompression calculations. If there is a desire to adjust the computer to provide more conservative calculations, use the personal adjustment feature to affect decompression calculations or reduce the PO2 setting to affect oxygen exposure. WARNING! SET THE CORRECT ALTITUDE ADJUSTMENT MODE! When diving at altitudes greater than 300 m [1000 ft] the Altitude Adjustment feature must be correctly selected in order for the computer to calculate the decompression status. The dive computer is not intended for use at altitudes greater than 3000 m [10000 ft]. Failure to select the correct Altitude Adjustment setting or diving above the maximum altitude limit will result in erroneous dive and planning data. 5 WARNING! SET THE CORRECT PERSONAL ADJUSTMENT MODE! Whenever it is believed that factors that tend to increase the possibility of DCI exist, it is recommended that you use this option to make the calculations more conservative. Failure to select the correct Personal Adjustment setting will result in erroneous dive and planning data. NOTE! You can change from Air mode to Nitrox mode at any time. It is however not possible to revert back to Air mode from Nitrox mode before the instrument has counted down the no-flying time. When planning both air and nitrox dives during the same dive series, you should set the instrument in Nitrox mode and modify the gas mix accordingly. 6 TABLE OF CONTENTS WARNINGS ...................................................................................3 1. INTRODUCTION ......................................................................9 1.1. SAFETY PRECAUTIONS ...........................................................9 1.1.1. Emergency Ascents ................................................................10 1.1.2. Dive Computer Limitations ....................................................10 1.1.3. Nitrox ......................................................................................10 2. GETTING ACQUAINTED ......................................................12 2.1. FUNCTIONS ...............................................................................12 2.2. PUSH BUTTONS ........................................................................12 2.3. WATER CONTACTS ...................................................................14 3. DIVING WITH THE GEKKO .................................................15 3.1 BEFORE DIVING ........................................................................15 3.1.1.Activation and Prechecks.........................................................15 3.1.2.Battery Indication ....................................................................17 3.1.2.1.Battery Power Indicator ..............................................17 3.1.3. Dive Planning [PLAN] ............................................................18 3.1.4. User Definable Functions and Alarms ....................................19 3.2. SAFETY STOPS ..........................................................................19 3.2.1.Recommended Safety Stop ......................................................19 3.2.2.Mandatory Safety Stop ............................................................19 3.3. DIVING WITH THE GEKKO ....................................................20 3.3.1.Basic Dive Data .......................................................................20 3.3.2.Bookmark ................................................................................21 3.3.3.Consumed Bottom Time (CBT) ..............................................22 3.3.4.Ascent Rate Indicator ..............................................................22 3.3.5.Decompression dives ...............................................................23 3.4. DIVING IN NITROX MODE ......................................................27 3.4.1. Before Diving ..........................................................................27 3.4.2. Oxygen Displays .....................................................................28 3.4.3. Oxygen Limit Fraction (OLF).................................................29 3.5. AT THE SURFACE ......................................................................30 3.5.1. Surface Interval .......................................................................30 3.5.2. Dive Numbering ......................................................................31 3.5.3. Flying After Diving .................................................................31 3.6. AUDIBLE AND VISUAL ALARMS ..........................................33 7 3.7. HIGH ALTITUDE DIVES AND PERSONAL ADJUSTMENT .....................................................34 3.7.1.Altitude Adjustment ................................................................34 3.7.2.Personal Adjustment ................................................................35 3.8. ERROR CONDITIONS ...............................................................36 4. MENU BASED MODES..........................................................37 4.1. MEMORY FUNCTIONS [1 MEMORY] ....................................38 4.1.1.Logbook and Dive Profile Memory [1 LOGBOOK] ...............39 4.1.2.Dive History Memory [2 HISTORY] ......................................42 4.1.3.PC Settings Mode [3 PC SET] ................................................42 4.2. SET MODES [4 SET] .................................................................43 4.2.1.Dive Computer Model Settings[1 SET MODEL ] ..................43 4.2.1.1.Nitrox Ox ...