1884-1
Module No. 1884
GENERAL GUIDE
A
L
C
D
B
Timekeeping Mode
Data Recall Mode
Alarm Mode
Press
C.
M
M
M
M
Stopwatch Mode
TIMEKEEPING MODE
· In the Timekeeping Mode, press D to switch between
the 12-hour and 24-hour formats.
· With the 12-hour format, the P (PM) indicator appears
on the display for times in the range of noon to 11:59 pm
and the A (AM) indicator appears for times in the range
of midnight to 11:59 am.
· With the 24-hour format, times are indicated in the
range of 00:00 to 23:59, without any indicator.
To set the time and date
1. Press
A while in the Timekeeping Mode. The seconds
digits flash on the display because they are
selected.
2. Press
C to change the selection in the following sequence.
A
L
C
D
B
Day of
week
Minutes
Seconds
Day
Month
PM
indicator
Hour
3. While the seconds digits are selected (flashing), press
D to reset the seconds to 00.
· If you press D while the seconds count is in the range of 30 to 59, the seconds are
reset to 00 and 1 is added to the minutes. If the seconds count is in the range of 00
to 29, the minutes count is unchanged.
4. While any other digits (besides seconds) are selected (flashing), press
D to
increase the setting or
B to decrease it. While the day of the week is selected,
pressing
D advances to the next day and B goes to the previous day.
· Holding down either button changes the setting at high speed.
5. After you set the time and date, press
A to return to the Timekeeping Mode.
· If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.
· The watch does not make any allowance for leap years. Be sure to manually set
February 29 (when one occurs) to the appropriate date.
Seconds
Month
Hour
Minutes
Day
Day of
week
About the backlight
The backlight uses an EL (electro-luminescent) panel that causes the entire display to
glow for easy reading in the dark. An EL alarm feature can be turned on so the
backlight flashes whenever an alarm or hourly time signal sounds.
· Pressing L in any mode turns on the EL backlight for about two seconds.
· If an alarm starts to sound while the backlight is lit after you press L, the backlight
will either turn off (if the EL alarm feature is turned off) or start to flash (if the EL
alarm feature is turned on).
· The electro-luminescent panel loses illuminating power after very long use.
· The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
To turn the EL alarm on and off
In the Timekeeping Mode, hold down
B for about two seconds to toggle the EL alarm
on (
indicator displayed) and off (
indicator not displayed).
· The
indicator is on the display in all modes while the EL alarm is turned on.
STOPWATCH MODE
The Stopwatch Mode lets you measure elapsed time, lap
times, and split times. Time is measured with 1/100 of a
second accuracy. You can also store up to 10 lap and split
times in memory.
· The lap time appears in the upper part of the display.
You can use this function to time how long it takes to
complete a specific portion (such as a single lap) of a
race.
· The split time appears in the lower part of the display.
You can use this function to time how long it takes to get
from the start to a specific point in a race.
Mode indicator
A
L
C
D
B
Lower display
Lap/split number
Upper display
To measure elapsed time
1. Press
B to start the stopwatch.
2. Press
B to stop the stopwatch.
· You can resume the measurement operation by pressing B again.
3. Press
D to clear the stopwatch to all zeros.
To record lap and split times
1. Press
B to start the stopwatch.
2. Press
D to display the timing up to that point. Stopwatch timing continues internally.
· When you press D, the lap and split times remain on the display for about seven
seconds. Then the display automatically changes back to the stopwatch (elapsed
time) display.
3. You can repeat step 2 as many times as you want.
4. Press
B to stop the time measurement.
5. Press
D to clear the stopwatch to all zeros.
About the memory function
Whenever you perform a lap/split time operation, the measured times are automatically
stored into memory along with the lap/split number. You can store up to 10 lap/split
times in memory.
If you perform more than 10 lap/split time operations, the memory will contain the
times for the first 9 laps/splits (as lap/split numbers 1 through 9), and the final lap and
split time (as lap/split 10).
BD
D
D
D
D
B
START
LAP
LAP
LAP
LAP
LAP
STOP
SPLIT
SPLIT
SPLIT
SPLIT
SPLIT
Final lap time
Final split time (Total elapsed time)
Data in the lap/split memory is cleared whenever you start a new stopwatch timing
operation. For details on recalling data in the lap/split memory, see "DATA RECALL
MODE".
DATA RECALL MODE
Use the Data Recall Mode to recall times stored in memory.
To recall data from memory
1. Enter the Data Recall Mode and the data for lap/split
number 1 appears on the display.
2. Press
D to scroll through the other times stored in
memory.
· The data scrolls in sequence from 1 through 10.
· Any lap/split for which there is no data shows 00'00"00
for the time.
· If you enter the Data Recall Mode while a stopwatch
operation is in progress, the time for the current lap/split
is shown as 00'00"00.
A
L
C
D
B
Lap/split number
Lap time
Split time
Mode indicator
· Press C to change from mode to mode. Each mode is explained in detail on the
following pages.
· In any mode, press L to illuminate the display for about two seconds.
ALARM MODE
When the Daily Alarm is turned on, the alarm sounds for
20 seconds at the preset time each day. Press any button
to stop the alarm after it starts to sound.
When the Hourly Time Signal is turned on, the watch
beeps every hour on the hour.
To set the alarm time
1. Press
A while in the Alarm Mode. The hour digits flash
on the display because they are
selected.
· This operation automatically turns on the Daily Alarm.
2. Press
C to change the selection in the following sequence.
3. Press
D to increase the setting or B to decrease it.
Holding down either button changes the setting at high
speed.
Hour
Minutes
A
L
C
D
B
AM indicator
Mode indicator
Alarm on
indicator
Minutes
Hour
Hourly time signal
on indicator
EL alarm on indicator
OFF
ON
1884-2
· The format (12-hour or 24-hour) of the alarm time matches the format you select for
normal timekeeping.
· When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning (A indicator) or afternoon (P indicator).
4. After you set the alarm time, press
A to return to the Alarm Mode.
To turn the Daily Alarm and Hourly Time Signal on and off
Press
D while in the Alarm Mode to change the status of the Daily Alarm and Hourly
Time Signal in the following sequence.
[Alarm ON Indicator / Hourly Time Signal ON Indicator]
Both ON
Hourly Time
Signal only
Daily Alarm only
Both OFF
To test the alarm
Hold down
B while in the Alarm Mode to sound the alarm.