Casio Watch 438 User's Manual
Contents
1. Operation Guide 437 438 Reading The Display Regular timekeeping Calendar PM Day Date Hour p Minute Month Press vear l95 3 25 somes gt ae 7 Press Release AS Release Module No 437 SU Sunday MO Monday TU Tuesday WE Wednesday TH Thursday FR Friday SA Saturday Module No 438 Reversion to regular time The watch reverts to the regular timekeeping display after operating in any mode Auto retrieve function The calculator and alarm displays will automatically return to the regular timekeeping display in 5 or 6 minutes Calculator Operation Appears when a number is set as A function command sign a constant Perform the four basic calculations An incorrect function 8 digit entry 7 digit for negatives command is corrected by can be made pressing the correct button Enters numerals For decimal places use the D key in its 3 5 Clears entry for correction logical sequence Releases overflow or error 5 check Overflow is indicated by an E sign and stops the 45578 CEOS OE hs ie a E PT calculation Overflow occurs K when the integer part of an answer whether intermediate or final exceeds 8 digits 7 digits for negatives Module No 437 L Obtains answer Module No 438 EXAMPLE OPERATION READ OUT EXAMPLE OPERATION READ OUT Ba2. battery Type CR 2016 Approx 5 years operation on type CR 2016 Includes the alarm for 20 seconds and calculation for 1 hour per day Module No 438 One lithium battery Type CR 1616 Approx 3 years operation on type CR 1616 Indudes the alarm for 20 seconds and calculation for 1 hour per day NOTE THERE IS NO WAY unit components can be damaged or malfunction due to misoperation of buttons If confusing information appears on the display it means entry sequence was incorrect Please read the manual and try again
3. r press in the regular timekeeping mode 2 Press the CO key on a time signal to correct seconds 3 The flashing position can be shifted by pressing in the following order SECOND AM PM gt 10 HOUR gt DATE e MONTH MINUTE 10 MINUTE AM or PM can be entered by pressing the 4 A numeral can be entered in the flashing position by pressing the required numeral key 5 Press to complete setting While setting time and calendar with every push of the display is switched between 12 hour and 24 hour formats Operation Guide 437 438 CASIO Specifications Accuracy at normal temperature 15 seconds a month Display capacity e Regular timekeeping Hour minute second am pm year month date and day on its double display Time system Changeover between 12 24 hour formats Calendar system Auto calendar pre programmed to the year 2079 e Calculator mode 8 digits 7 digits for negatives Abilities Four basic calculations chain amp mixed operations constants for x power calculation Decimal point Full floating with underflow Overflow check Indicated by the E sign locking the calculator mode e Stopwatch mode Measuring capacity 23 hours 59 minutes 59 99 seconds Measuring unit 1 100th of a second Measuring modes Normal time net time lap time and Ist 2nd place times e Dual time mode e Daily alarm mode e Hourly time signals Battery e Module No 437 One lithium
4. sic 3x4 12 calculation 4 is constant 4 O3 12 0 5 x3 7 12 5 4 9285714 3 7 49205714 e 4 99 cS Constant calculation 3 4 0 75 3 4 7 4 is constant 8 4 12 Power J calculation 3 3000 3 3 To save battery power press the button in the calculator mode to silence the tone To retrieve sound press the button again Setting Daily Alarm Time Every time the button is pressed in the alarm time mode the alarm ON mark nil appears or disappears When the alarm ON mark is lit the buzzer sounds for 20 seconds at the preset time every day until cleared To stop the buzzer while sounding press any button Setting the time signal Every time the button is pressed in the alarm time mode the time signal ON mark 1 appears or disappears When the time signal ON mark is lit the watch sounds every hour on the hour Sound demonstration While both CQ and C buttons are pressed simultaneously the buzzer sounds Presetting alarm time 1 Press to set new alarm time 2 Press to set PM or AM 3 A numeral can be entered in the flashing position by pressing the required numeral key The flashing digit can be shifted in the following order gt 10 HOUR gt HOUR gt 10 MiNuTE gt MINUTE 4 Press 8 to complete setting When the watch is in the 24 hour system the alarm time is displayed in that system Se
5. tting Dual Time 1 Press to set new time in dual time mode 2 Press to set PM or AM 3 A numeral can be entered in the flashing position by pressing the required numeral key The flashing digit can be shifted in the following order gt 10 HOUR gt HOUR gt 10 MiNUTE gt MINUTE 4 Press to complete setting When the watch is in the 24 hour system the dual time is displayed in that system CASIO Calculator Daily Alarm Mode Dual Time Mode Stopwatch Mode ode Alarm ON mark PM Time signal ON mark Mode indicator Mode indicator mA aT B 28 sa Hour Minute Minute Mode indicator Second 1 100 second Stopwatch Operation Asignal confirms start stop operation The tone sounds at 10 minute intervals Working range The stopwatch display is limited to 23 hours 59 minutes 59 99 seconds Thereafter it can be reset and started again The hour digits can be shown by pressing the button Lap indicator Press Module No 438 a Net time measurement io Time loss io Start Stop Stop b Lap time measurement Start Lap Lap release Stop c 1st 2nd place times Start Lap Stop Lap release The first runner The second runner Record the time of finishes finishes the second runner Record the time of the first runner Setting Time And Calendar 1 To set time and calenda
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