Oregon Scientific SL928M User manual

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500LAPSTOPWATCH
Model No.: SL928M
USER’SMANUAL
INTRODUCTION
Congratulations on your purchasing the SL928M 500 Lap Stopwatch. A reliable
timepiece for an active lifestyle, the SL928M is equipped with additional functions
such as a multi-step pacer, count-down and count-up timer, and EL back light.
MAIN FEATURES
Refer to (FIG.1).
A. [ LAP/RESET ] BUTTON
Registers a lap or resets, reset stop watch and timer, changes or decreases a
value
B. [ ] BUTTON
Operates the back light
C. [MODE]BUTTON
Changes an operating mode or enters a setting procedure
D. [ START/STOP ] BUTTON
Starts or stops the stopwatch, timer or pacer, changes or increases a value
E. [ RECALL ] INDICATOR
Indicates the RECALL function is active
F. [ LAP ] INDICATOR
Indicates the number of laps
G. [ ] INDICATOR
Indicates the PACER mode
H. [ ] INDICATOR
Indicates the TIMER mode

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I. [ ] INDICATOR
Indicates the daily alarm is active
J. [ SEGMENT ] INDICATOR
Indicates the number of segments in a counting
K. [ ] INDICATOR
Indicates the AUTO LIGHT function is active
L. [ ] INDICATOR
Indicates the lap time
M. [ ] INDICATOR
Indicates the split time
N. [ ] INDICATOR
Indicates the CHRONO mode
O. [ ] INDICATOR
Indicates the accumulated time
P. [ FREE ] INDICATOR
Indicates the effective memory left for laps
Q. SAFETYCORD
Secures the unit for holding in the hand or wearing it around the neck
DISPLAY MODES
Refer to (FIG.2).
BACKLIGHTANDAUTOLIGHT
Refer to (FIG.3).
Press []to turn on theback lightfor fiveseconds.To activate the AUTOLIGHT
function, press and hold []for two seconds. Press and hold [] again to
deactivate it. When the function is active, pressing any button will turn on the
back light for five seconds.

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HOWTO SET THE CALENDARCLOCK
Refer to (FIG.4).
Note:
a. Clock in either 24-hour or 12-hour (with “a” and “p” indication) format.
b. Calendar year can be set between 2000 to 2099. The unit will automatically
recognize the day of the week.
c. Minute digit will be auto-advanced by one digit if second is reset after 30 sec.
HOWTO USE THE CHRONOGRAPH
Refer to (FIG.5).
1. Press [ MODE ] to display the CHRONO mode.
2. To register a segment, press [ LAP/RESET ].
3. Press [ START ] to start counting. The stopwatch can count up to 23 hours, 59
minutes and 59.99 seconds before starting from zeros again.
4. Press [ STOP ] to stop counting. To resume, press [ START ]. A new lap count
will start.
5. Or press [ LAP/RESET ]. The last lap number will appear and the LAP and
SPLIT time display will freeze for 5 seconds. The []indicator will flash
indicating the stopwatch is still running in the background.
6. Press [STOP] to stop counting.
7. Repeat the last three steps to register other laps. The stopwatch can register up
to 500 laps.
8. Press [LAP] after stopping to clear the display and register another segment.
Note:
a. The stopwatch can register up to 99 segments.
b. 99 segments share with total 500 lap memories.
c. The effective memory left for laps will be reduced as the number of registered
segments increase.
d. The free memory remained will be shown on the display when a segment is
registered.

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e. Chronograph mode can be run at the background when the stopwatch is started
and go to the other display mode.
f. Stopwatch function operates even, if all segment and lap memory is used up.
HOW TO SELECT THE CHRONOGRAPH IN UNITS OF
HOURS, MINTUES OR SECONDS
Refer to (FIG.6).
Note:
a. Four different chronograph units of display: hour:minute:second with 1/100
sec. resolution, second with 1/100 sec. resolution; hour with 1/100000 hr
resolution and minute with 1/1000 min resolution.
b. Different segment can have different chronograph unit of display.
c. Within each segment it is allowed only one single unit of display.
HOWTORECALL CHRONOGRAPHRECORDS
Refer to (FIG.7).
Note:
a. The last recorded segment will be displayed with its time and date stamp when
advance from chronograph mode.
b. Two beeping sounds will be heard to indicate the end of lap record for each
segment.
HOWTO ERASE CHRONOGRAPH RECORDS
Refer to (FIG. 8A / FIG. 8B).
Note: The record of the current running chronograph cannot be deleted.

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HOWTOUSE THETIMER
Refer to (FIG. 9) for timer setting mode.
Refer to (FIG. 10) for timer running mode.
Note:
a. There are three modes of operation that can be chosen : CS (count down and
stop), CU (count down and count up) or CR (count down, automatic reload
and repeat).
b. The maximum count down or count up time is 23 hours, 59 minutes and 59
seconds. A pre-alert tone will be emitted at five second before completion of a
count cycle and an alert tone will be emitted for 10 sec. upon the completion of
a count cycle. Press any button to mute the alert tone.
c. Once started the Timer can be running in the background even if the unit is in
a different display mode.
HOWTOUSE THEPACER
Refer to (FIG.11).
Note:
a. Pacer range from 30 to 240 at five-step intervals, i.e. number of beeping sound
to be heard will be range from 30 beep per minute to 240 beep per mintue.
b. Pacer can be run simultaneously with Chronograph mode. Beeping sound will
be heard and flashing “PACER” icon will be seen during the stopwatch running
mode if pacer is activated.
HOWTOUSETHEDAILYALARM
Refer to (FIG.12).
Note:
a. The alarm will be automatically activated during the setting procedure.
b. When the alarm is active, an alert tone will go off at 30 seconds. Press any key
to mute the tone.