User manual SEIKO STOPWATCH S321

[. . . ] SHOCKS Do not subject it to violent shocks. CHEMICALS Be careful not to expose the stopwatch to solvents, mercury, cosmetic spray, detergents, adhesives or paints. may become discolored, deteriorated or damaged. PERIODIC CHECK It is recommended that the stopwatch be checked once every 2 to 3 years. [. . . ] A time/calendar function is also provided. S057 has a double repeat timer function. STOPWATCH The stopwatch can measure up to 100 hours in 1/100 seconds. LAP TIME, LAP TIME IN PROGRESS AND SPLIT TIME DISPLAYS Three separate stopwatch displays are available for lap time, lap time in progress and split time measurements. MEMORY FUNCTION Up to 100 lap/split time data can be stored in memory, and they can be recalled either during or after the measurement. TIME/CALENDAR Year, month, day, date, hour, minutes and seconds are displayed. The calendar automatically adjusts for odd and even months including February of leap years from January 1, 2006 to December 31, 2055. AUTOMATIC SHUT-OFF FUNCTION (ECO) When the stopwatch is left untouched for one hour, the display automatically becomes blank in order to minimize battery consumption. DOUBLE REPEAT TIMER (This function is available only for Cal. S057. ) S057 has the indication "INTERVAL TIMER" on the front of its body. · The built-in two descending timers (which allow you to set two different timer times) can be used repeatedly one after the other. S057) Two timers are available for use either individually or in combination. When used together, Timer 2 starts counting down as soon as Timer 1 has finished counting down the set time. They repeat their respective countdown cycles alternately as many times as necessary unless stopped. Each Timer 1 and Timer 2 can be set for any desired amount of time from 10 seconds up to 99 hours, 59 minutes and 59 seconds in one-second increments. To use either Timer 1 or Timer 2 as a standard repeat timer, set the timer not in use to "00:00'00. " The number of times that the timers repeat their countdown cycles can be set from 1 to 100 times. If "---" is set for the number of repeating times, the timers will automatically start over a new counting until stopped by the user. TIMER SETTING Number of times the countdown was repeated Number of times the countdown is to be repeated D Press to show the TIMER display. Press and hold for 2 seconds to show the TIMER SETTING display. * The HOUR digits for Timer 1 start flashing. B A B C C Press repeatedly to select the digits (flashing) to be adjusted. Timer 1 HOUR (TIMER 1) MINUTES (TIMER 1) SECONDS (TIMER 1) HOUR (TIMER 2) MINUTES (TIMER 2) SECONDS (TIMER 2) Timer 2 NUMBER OF TIMES THE COUNTDOWN IS TO BE REPEATED Press to set the flashing digits. * * D A The digits move quickly if Button A is kept pressed. By pressing Button D while the digits are flashing, both of the timers and the number of times the countdown is to be repeated will be reset to "00:00'00"" and "000, " respectively. B After all the adjustments are completed, press to return to the TIMER display. The timers cannot be set for a time less than 10 seconds. If a time less than 10 seconds is set and Button B is pressed to return to the TIMER display, the timers will automatically be set to "00:00'10". " How to use the timer In this way, both the timers repeat the countdown the number of times you have set, showing the number of times the countdown has been completed on the display. C Press Button C to start Timer 1. mark flashes during the countdown. A time-up warning beep for Timer 1 sounds 3 seconds before the set time is up. When the set time is up, time-up beep for Timer 1 sounds for 5 seconds. TIMER 2 starts counting down. A time-up warning beep for Timer 2 sounds 3 seconds before the set time is up. [. . . ] The current time will be displayed once every 10 seconds even while the display is blank, to indicate that the blank display is not caused by battery exhaustion. While the stopwatch or timer is measuring, the display will not become blank for the energy-saving functions. To return to the normal display, press either Button A, B, C or D. The last display before it became blank will be shown. 4 HOW TO RESET THE BUILT-IN IC When an abnormal display (broken digits, etc. ) appears, follow the procedure below. [. . . ]