CASIO DW9901WC-9T
Owner's Manual

Module No. 2016
ABOUT THIS MANUAL
v

2016-1
� To protect against the misuse of SCUBA diver certificate number, passport number, and emergency contact number data, input them in coded form that cannot be understood by others. � Make sure you correctly input your name and blood type data. Once you input your data, take care that the watch is not borrowed by another person. Otherwise, emergency medical personnel may assume that your data applies to the person who borrowed the watch. � The default blood type screen setting when you first purchase the watch or after you change the battery is �A� for the blood type and �Rh *� for the Rh factor. To avoid problems caused by display of the wrong blood type, we recommend that you input your correct blood type data as soon as possible after purchasing the watch and after having the battery replaced. � CASIO COMPUTER CO., LTD. shall not be held liable to you or any third party for any losses or damages suffered through the misuse of data stored in the memory of this watch.

A
P

B

� Button operations are indicated using the letters shown in the illustration. � Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the �REFERENCE� section.
v

M
(MODE)

C

Warning!
Note the following important points concerning Identification Mode data stored in the memory of this watch. � SCUBA diver certificate number, passport number, and emergency contact number data stored in the memory of this watch can be misused whenever the watch is in the hands of another party.

GENERAL GUIDE
� Press M to change from mode to mode. � While in any mode hold down M for one second, to enter the Dive Time Measurement Mode. � In any mode, press B to illuminate the display.
P

Site Mode

Identification Mode

P

Hold down M.
P

A
P

B

P

sM res

.

Stopwatch Mode

Countdown Alarm Mode

Alarm Mode

v

P

P

DIVE TIME

M

C

TIMEKEEPING MODE
Month � Day Day of week

3. Press M to move the flashing in the sequence shown below to select other settings.
Seconds Day Site Name Month DST On/Off
v

v

A

B
P

In addition to normal timekeeping, use the Timekeeping Mode to set the current time and date. You can also view the Dive Time Measurement Mode log data. � See the section of this manual that describes the Dive Time Measurement Mode for information about log data.

Hour

Minutes 12/24-Hour format

Year

� See �Daylight Saving Time (DST)� for details on DST On/Off setting. 4. Press M until the site name is flashing on the display. 5. Use B and C to scroll through the site names until the one you want to set as your Home Site. � Pressing C scrolls forward, while B scrolls back through site names. � See �Read This Before You Set the Time and Date!� for a list of site name. 6. Press M until the hour setting is flashing on the display. 7. Press C to increase the setting or B to decrease it. 8. Repeat steps 6 and 7 to set the minutes, year, month, and day. � When the 12/24-hour setting is selected, press C to toggle between 12-hour (12H) and 24-hour (24H) timekeeping. 9. Press A to return to the current time screen.

M
Hour : Minutes Seconds PM indicator

C

Read This Before You Set the Time and Date!
The times displayed in the Timekeeping Mode and Site Mode are linked. Because of this, make sure you select a �Home Site� (the site whose time and date you are setting), before you set the date and time. You can use any one of the 10 snorkeling and scuba diving sites pre-programmed in watch memory, or you can create your own.
Site Name
CAYMAN GALAPAGOS GBR GUAM HAWAII JAPAN MAURITIUS MALDIVES RED SEA TAHITI

Daylight Saving Time (DST)
Daylight Saving Time automatically advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time. To toggle your Home Site time between DST and Standard Time 1. In the Timekeeping Mode, hold down A until DST indicator the seconds digits start to flash.
A
DST
P

GMT Differential �5 �6 +10 +10 �10 +9 +4 +5 +2 �10

Location Caribbean Ocean West Pacific Ocean Coral reef north east of Australia East Pacific Ocean Central Pacific Ocean East Pacific Ocean West India Ocean North India Ocean Red Sea South Pacific Ocean

B

2. DST On/Off setting. Press M twice to move the flashing to the 3. Press C to toggle Daylight Saving Time (O ) and standard time (OFF). 4. Press A to return to the current time screen. � The DST indicator appears on the display to indicate that daylight saving time is turned on.

M

C

Important! If the site you want to use as your Home Site is not in the above list, use the procedure under �Changing Site Data� to edit the pre-programmed site data. To set the time and date
Site name

A
P

B

1. In the Timekeeping Mode, hold down A until the seconds digits start to flash. 2. While the seconds digits are flashing, press C to reset the seconds to 00. � Pressing C while the seconds count is in the range of 30 to 59 resets the seconds to 00 and adds 1 to the minutes. In the range

M

C

of 00 to 29, the minutes count is unchanged.

v v

Dive Time Measurement Mode

v

Timekeeping Mode