User manual SEIKO SGS

[. . . ] SGS is intended for use in an inherently hazardous form of recreation. Therefore, it is absolutely essential that you strictly observe all instructions for the use and maintenance of the watch set forth in this manual. First of all, this watch is for use in recreational (no-decompression) diving in water having a temperature range -5° C to +40° C (+23° F to +104° F) only by adults in good health and having average physical strength. Randy Bohrer, one of the most distinguished scientists in this field, which expands upon the theories of the so-called Swiss model. [. . . ] q Be sure to check that the actual percentage of oxygen in your tank (FO2) is properly set for the watch. q Check that the measurement units of depth and temperature are set according to your requirement. They can be selected from "meters (m) and centigrade (° C)" and "feet (ft) and Fahrenheit (° F)". q The watch does not indicate the amount of air in your tank. q For safety's sake, use other diving equipment such as dive computer, depth gauge and another diver's watch together with the watch. Abide by the rules of scuba diving, and never dive alone even if you have the watch on your wrist. q Abrupt change of altitude after diving is extremely hazardous to your health. Do not move across the altitude ranks that the watch indicates. WHILE DIVING q Take care not to hit the watch against hard objects such as rocks. If "- - -" or "Err" is shown when the current depth is less than 100 m (329 ft), stop using the watch immediately, and use other diving equipment such as diving computer, depth gauge and another diver's watch you have with you. q While in the dive mode, the display cannot be changed over to modes other than time/calendar by pressing button "C". q Depending on the aquatic environment where the watch is used, the beeping sound of the regular alarm and warnings may or may not reach your ears. q The watch measures the depth of water on the basis of seawater having a specific gravity of 1. 03. TO PRESERVE THE QUALITY OF YOUR WATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 27 28 29 5 English FEATURES The SEIKO Diving Computer Cal. SGS is a digital diver's watch featuring dive computer functions. An algorithm is programmed into it to calculate multilevel diving. DIVE COMPUTER FUNCTIONS s Algorithm q The watch has an algorithm that calculates multilevel diving. Randy Bohrer, one of the most distinguished scientist in this field, which expands upon the theories of the so-called Swiss model. q The log data includes date of dive, entry/exit time, dive time, maximum depth, FO2 setting (percentage of oxygen in gas mixture), and residual nitrogen/oxygen at the end of dive. q The measurement units of depth and temperature can be selected from "meters (m) and centigrade (° C)", and "feet (ft) and Fahrenheit (° F)". TIME FUNCTIONS s Time/calendar function q Hour, minutes, seconds, month, date and day are displayed. s Dive function q The watch is equipped with an auto switch that senses water and activates the dive function. q The diving data is measured automatically while diving between 1. 5 m (5 ft) and 99. 9 m (328 ft), eliminating the need for any button operation. q The residual nitrogen and residual oxygen are indicated graphically for a quick grasp of the current safety situation. s Fully automatic calendar q The calendar adjusts automatically for odd and even months including February of leap years up to 2050. s Regular alarm function q The alarm can be set to ring once a day at a designated time. Hourly time signal and alarm test functions are also provided. s Altitude compensation q The watch measures the current altitude automatically, calculating the residual nitrogen and other data for the next dive taking into account the altitude change following an air flight or move to high ground. s Hour correction function q When you are traveling around different time zones, the time and calendar of the place you visit can be shown easily with only the press of a button. The time can be adjusted in 30 minute increments, making it available for those areas having a time difference in 30 minute increments from GMT. s Nitrox diving function q The watch can provide data for nitrox diving. q The percentage of oxygen (FO2) in the gas mixture of your scuba tank can be set for the watch from 22% to 50%. s Dive plan function q No-decompression limits are calculated, automatically taking into consideration the current residual nitrogen and altitude. [. . . ] In testing the alarm, if button C is pressed just before pressing button D, the engagement/disengagement of the regular alarm and hourly time signal will be made. Show the REGULAR ALARM display to engage or disengage them as required, following the procedure above. Notes: 1. While the illuminating light is used, the watch may make a very small noise. The electroluminescent panel loses its luminance as the battery voltage becomes lower. [. . . ]