User manual CASIO QW-657

[. . . ] 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 CASIO. CASIO, QW-657, Oxygen Limit Fraction (OLF), CASIO Reduced Gradient Bubble Model (RGBM), Continuous Decompression and their logos are all registered or unregistered trademarks of CASIO. Patents have been issued or applied for one or several features of this product. [. . . ] Surface Mode after a violated decompression dive. ASC TIME symbol indicates that you have violated the ceiling for more than three minutes. The alternating display shows you that you must not dive again for at least 48 hours. Diver Attention Symbol Violated Decompression Ceiling Do Not Fly Symbol 51 the dive time will begin where it left off. After 5 minutes on the surface, subsequent dives are, by definition, repetitive. The dive counter displayed in the Planning Mode will increment to the next higher number if another dive is made. 3. 2. 3. 4. FLYING AFTER DIVING The no-flying time is shown in the center window next to the airplane image. Flying or travelling to a higher altitude should be avoided at any time the computer counts down the no-flying time. The no-flying time is always at least 12 hours or equivalent to the so-called desaturation time (if longer than 12 hours). In the permanent Error mode and Free/Gauge mode the no-flying time is 48 hours. Divers Alert Network (DAN) recommends the following on no-flying times: A minimum surface interval of 12 hours would be required in order to be reasonably assured a diver will remain symptom free upon ascent to altitude in a commercial jetliner (altitude up to 2400 m [8000 ft]). Divers who plan to make daily, multiple dives for several days, or make dives that require decompression stops, should take special precautions and wait for an extended interval beyond 12 hours before flight. If you do not respond to its warnings, the dive computer will enter an Error Mode, indicating that the risk of DCI has greatly increased. If you dive sensibly, it is very unlikely you will ever put the instrument into the Error Mode. OMITTED DECOMPRESSION The Error Mode results from omitted decompression, i. e. when you stay above the ceiling for more than three minutes. During this three-minute period the Er warning is shown and the audible alarm beeps. After this, the dive computer will enter a permanent Error Mode. The instrument will continue to function normally if you descend below the ceiling within this three-minute period. Once in the permanent Error Mode only the Er warning is shown in the center window. The dive computer will not show times for ascent or stops. However, all the other displays will function as before to provide information for ascent. You should immediately ascend to a depth of 3 to 6 m [10 to 20 ft] and remain at this depth until air supply limitations require you to surface. The Error mode will stay for 48 hours, during which time you should not dive. [. . . ] OEA = EAN = EANx Abbreviation for Oxygen Enriched Air Nitrox. Oxygen Tolerance Unit 111 Oxygen partial pressure Limits the maximum depth to which the used Nitrox mixture can safely be used. The maximum partial pressure limit for enriched air diving is 1. 4 bar. The contingency partial pressure limit is 1. 6 bar. Dives beyond this limit have the risk for immediate oxygen toxicity. [. . . ]