Casio 5240 manual

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Operation Guide 5240

ENGLISH

Congratulations upon your selection of this CASIO watch.

ξ Note that the product illustrations in this manual are intended for reference only, and so the actual product may appear somewhat different than depicted by an illustration.

This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.

E-1

About This Manual Using the Crown



Operations are performed using the watch’s crown, and the three buttons indicated by the letters A, Band Cin this manual.

Hands and Indicators

z Hour Hand

x Second Hand

c Minute Hand

v Upper Dial Hand: Indicates a time, in 24-hour format, depending on the current mode.

bLower Dial Hand: Indicates the current mode. n Day Indicator

This User’s Guide uses numbers shown above to identify watch hands and indicator.

This watch has a lock-type crown.

Important!

ξYou should normally have the crown locked during normal daily use. Leaving the crown unlocked creates the risk of unintended operations or even damage due to impact.

To lock the crown
Mark 1	1. Push the crown back in (see “To pull out, rotate, or push the
	crown in” below).
Groove	ξ Note that attempting to lock the crown when it is not
	pushed in can cause unexpected watch operation.

W2. Rotate the crown so the groove is aligned with Mark 1.

	Mark 2	3.	While pushing in on the crown (a), rotate it to the right (b) so
			the groove aligns with Mark 2.
		4.	Gently pull on the crown to make sure it is securely locked
V

and does not come out.

E-2 E-3

To unlock the crown

Rotate the crown so the groove aligns with Mark 1.

To pull out, rotate, or push the crown in

Important!

ξBefore performing any of these operations, first unlock the crown.

The illustrations below show the different crown operations.

Pull out Rotate Push in

When rotating the crown to move the hands of the watch, you can use the operations described below to move the hands at high speed. There are two high-speed hand movement speeds. High-speed 2 is the fastest.

E-4

High-speed 1	High-speed 2	High-speed Cancel
With the crown pulled out,	After starting the High-
	speed 1 operation, rotate	Rotate the crown towards
rotate it rapidly away from
	the crown rapidly away	you or press any button.
you three times.
	from you three more times.

Note

ξIf you do not perform any operation for more than two minutes after pulling out the crown, crown operations will become disabled automatically. If this happens, push the crown back in and then pull it out again to re-enable crown operations.

ξYou can use high-speed hand movement when configuring time settings in the Timekeeping Mode, Alarm Mode, or Countdown Timer Mode.

ξHigh-speed hand movement is forward only. There is no high-speed backward hand movement.

E-5

Things to check before using the watch

1.Hold down Cat least two seconds to enter the Timekeeping Mode, and then observe the movement of the x Second Hand.

Is the x Second Hand moving smoothly at one-second intervals?

NO YES

2. Check the Home City.

Use the procedure under “To confi gure Home City settings” (page E-34) to confi gure your Home City.

Important!

Proper time calibration signal reception depends on correct Home City, time, and day settings in the Timekeeping Mode. Make sure you configure these settings correctly.

Is the x Second Hand moving at two-second intervals or is it stopped completely?

YES

Power is low. Charge the watch by placing it in a location where it is exposed to light. For details, see “Charging the Watch” (page E-12).

The watch is charged. For details about charging, see “Charging the Watch” (page E-12).

NEXT

Go to step 2.

3.Set the current time.

ξTo set the time using a time calibration signal

See “To get ready for a receive operation” (page E-23).

ξTo set the time manually

See “Configuring Current Time and Day Settings Manually” (page E-39).

The watch is now ready for use.

ξFor details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic Timekeeping” (page E-18).

E-6 E-7

Contents

E-2 About This Manual

E-3 Using the Crown

E-3 To lock the crown

E-4 To unlock the crown

E-4 To pull out, rotate, or push the crown in

E-6 Things to check before using the watch E-12 Charging the Watch

E-17 To recover from the sleep state

E-18 Radio Controlled Atomic Timekeeping

E-23 To get ready for a receive operation

E-26 To perform manual receive

E-27 To check the result of the latest receive operation

E-28 To turn auto receive on and off

E-30 Mode Reference Guide

E-31 To determine the watch’s current mode

E-31 To return to the Timekeeping Mode from any other mode

E-32 To select a mode

E-33 Timekeeping

E-34 Configuring Home City Settings

E-34 To configure Home City settings

E-37 To switch between standard time and summer time manually

E-39 Configuring Current Time and Day Settings Manually

E-39 To change the current time setting manually

E-42 To change the current day setting manually

E-46 Thermometer

E-47 To take a temperature reading

E-48 To switch a temperature reading unit between Celsius (°C) and Fahrenheit (°F)

E-8 E-9