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PROFESSIONAL
STOPWATCH
JG028
USERS MANUAL
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This stopwatch is a user-friendly tool to keep track
To develop basic understandings and get the
most out of your purchase, be sure to carefully
read this manual and keep it on hand for future
reference.
FEATURES:
-Time-of-Day and Calendar
date and day
minutes, 1 second up to 24 hours
-Daily alarm
-Hourly chime
INTRODUCTION
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MAIN FUNCTION BUTTONS
DISPLAY SYMBOL
NORMAL TIME DISPLAY
1. Day of the Week
2. Hour
3. Minute
4. Second
MONTH/DATE DISPLAY
1. Month
2. Date
month/date display.
MAIN FUNCTION BUTTONS
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STOPWATCH MODE
-Press A to reset the stopwatch to “0:00” before
using the stopwatch.
Start Stop
Stop
Restart
Reset
Start Split
Stop
Split/Release
Reset
Start
Reset
Split Stop
Split/Release
STOPWATCH MODE
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TIME/CALENDAR SETTING
The sequence will be: second > minute > hour >
date > month > day
4. Press B to return to the normal mode.
Note: Press C to add one minute when the second is
more than or equal to 30 and
reset it to 00 when the value is less than 30.
Second
Minute
Hour
Date
Month
Day
TIME & CALENDAR SETTING
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ALARM SETTING
2. Press C to advance the hour value.
3. Press A to select the minute and Press C to
change the minute value.
4. Press B to return to the normal mode.
Note 1: To turn the alarm ON/OFF, Press A and C at
Note 2: When the alarm is on, (1) it will last one
(3) Press A to stop the alarm.
HOURLY CHIME SETTING
To set the hourly chime ON/OFF, please do the
following:
then hold B simultaneously.
disappear.
ALARM & HOURLY CHIME SETTING
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BATTERY REPLACEMENT
WE STRONGLY RECOMMEND TAKING YOUR STOPWATCH TO A LOCAL JEWELER TO HAVE BATTERY
REPLACED TO AVOID POSSIBILITY OF PERMANENTLY
DAMAGING THE STOPWATCH.
When the LCD becomes dim, replace with a new
Warning:
contact a doctor or emergency personnel
immediately.
They should be disposed of properly according to
BATTERY REPLACEMENT
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CARE AND MAINTENANCE
it will void the warranty.
-Protect the unit from extreme heat,
-Unit can be wiped clean with a lightly moistened
cloth. Apply mild soap to the area if there are
stubborn stains or marks.
-Do not expose the unit to strong chemicals such
as gasoline, clean solvents, acetone, alcohol, insect
repellents, as they may damage the unit’s seal, case
-Do not swing the stopwatch.
-Do not drop or step on the stopwatch.
-Do not wash the stopwatch or touch it with wet
hands.
-Store the unit in a dry place when you are not
using it.
-Keep the stopwatch out of reach of young children.
CARE & MAINTENANCE
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