© 2011 Oregon Scientic. All rights reserved.
300102871-00001-10
Exercise time
Calories burned (kcal)
Time
aLERTS
This watch enables you to select a target HR
zone according to your tness goals. By setting
the target HR zone and personal data, the watch
can monitor how well you do. The watch will send
out visual and audible alerts if you are pushing
yourself too hard or need to put more effort in.
For details of HR zones, refer to “Understanding heart rate” section in this manual.
If alert has been enabled and heart rate zone has been set:
iCOn bEEp(S) DESCRipTiOn
/ ABOVE ZONE! 2 You have gone above your upper HR limit
/ BELOW ZONE! 1 You have gone below your lower HR limit
Remember, these alerts are based on a calculation of your maximum heart rate and the HR
zone you selected. As such, it is an estimation and is only for guidance. If you feel you are
working too hard, most likely you are. Adjust the HR zone to one that works for you.
unDERSTanDinG HEaRT RaTE
HEaRT RaTE zOnES anD ExERCiSE
Heart rate is an indicator of the intensity of the exercise on your body. It is a useful tool for
determining how effective a work-out is.
This watch uses an estimation of your maximum heart rate (220 - age = MHR) to arrive at 5
HR zone settings specic to you.
HR zone
settings
Corresponding
watch setting Description / benet derived Examples
Fat
burning
50% - 60%
For beginners and those with health
problems. Gets body used to exercise
and improves health.
Brisk walking
61% - 70%
Improves heart’s ability to deliver
oxygen. Calories burned mostly from
stored body fat.
Jogging, easy
cycling.
Aerobic 71% - 80%
Increases endurance and muscle
strength. Breathing is faster and
deeper promoting proper circulation of
oxygenated blood.
Running,
aerobic dance,
jumping rope.
Anaerobic
81% - 90%
Builds muscle and enhances speed,
power and performance levels. Body
requires more oxygen than it can
provide.
Weight-lifting,
resistance
machine.
91% - 100%
For athletes. Vigorous training, usually
done in short bursts to enhance power
and performance. May increase chance
of injury and soreness.
Sprinting
*The upper and lower heart rate limits are calculated by multiplying your maximum heart rate
(MHR) by the percentages.
It is important to pace yourself, especially if you haven’t exercised for a while. Start off
slow, aiming for the lowest range (50%-60%). As you become more comfortable, challenge
yourself by increasing in speed and duration.
To benet most from your work-out, determine your tness goal and exercise at a proper
intensity. The most common zone range is from 50% to 80% of your maximum heart rate.
This is where you achieve cardiovascular benets, burn fat and become more t.
Remember, if you rush in too quickly and push your body too hard before it’s ready, it can be
counterproductive. You can hurt your muscles / tendons and may even result in injury and be
a real step back from your goal.
iMpORTanT Always warm up before exercise and select the HR zone setting that best
suits your physique. Exercise regularly, 20 to 30 minutes per session, three to four times a
week for a healthier cardiovascular system.
waRninG Determining a suitable exercise intensity is a critical step in the process towards
an efcient and safe training program. Please consult your doctor or health professional to
help you determine exercise frequency and duration appropriate for your age, condition and
specic goals.
MEMORy
1. Touch MODE/- repeatedly to select “MEM”. After 2 seconds, display will show the time
and date of the most recent exercise session recorded or “NO RECORD” if there is no
data.
2. Touch +/ST/Sp to navigate to desired record.
3. Touch EnTER to toggle through the displays related to selected exercise session.
Total time taken for entire exercise
Maximum heart rate
Average heart rate
Total calories burned (kcal)
To return to screen which shows date and time of exercise session: Touch MODE/-.
CLEaR RECORDS
This watch can contain data for up to 99 exercise sessions. Individual memory cannot be
selected and deleted. The watch only allows for all data to be deleted.
To delete memory:
1. Touch MODE/- repeatedly to select “MEM”.
2. Touch +/ST/Sp repeatedly until “DELETE” will be displayed.
3. Touch MODE/- to conrm.
DONE indicates the record has been cleared.
MODE/- +/ST/SP MODE/-
When starting an exercise and memory is full, “FULL” will be displayed, followed by
“DELETE”.
• Touch MODE/- to delete all records
OR
• Touch EnTER to ignore and start an exercise without recording data for it.
OTHER OpERaTiOnS anD SETTinGS
aCTivaTE baCkLiGHT
Touch EL. (Touch EL again to extend backlight for another 5 seconds).
nOTE The backlight function will not operate if “ ” is displayed.
bEEp TOnE On / Off
When time is displayed, touch +/ST/Sp to activate / deactivate beep tone.
indicates beep tone is deactivated.
REpLaCE baTTERy
If the battery power of your watch is low, the watch will display .
To replace watch battery:
1. Use a coin to open the
battery compartment
lid by turning it
anticlockwise.
2. Remove the old
battery and insert
a new CR2025, 3V
lithium battery.
3. Secure the lid by turning the coin clockwise.
iMpORTanT Remember to set the proles after every battery replacement or reset.
waTER RESiSTanCE
The SE338 / SE338M is water-resistant up to 50 meters (164 feet)
RAIN
SPLASHES
ETC
SHOWERING
(WARM /
COOL WATER
ONLY)
LIGHT
SWIMMING/
SHALLOW
WATER
SHALLOW
DIVING /
SURFING/
WATER
SPORTS
SNORKELING/
DEEP WATER
DIVING
50M /
164 FT OK OK OK OK NO
• Ensure the buttons and battery compartment are secured and intact before exposing the
watch to excessive water.
• Avoid pressing the buttons while in the water or during heavy rainstorms, as this may
cause water to enter the watch, leading to malfunction.
SpECifiCaTiOnS
CLOCk
Time format 12/24 hour format with hour / minute
Date format DD.MM.YY or MM.DD.YY
Year range 2010 - 2059
TRaininG
Target heart rate zone 50-60%; 61-70%; 71-80%; 81-90%; 91-100%
Maximum memory 99 records
Calorie range 0 to 9,999 kcal
pOwER
Watch 1 x CR2025 3V lithium battery
OpERaTinG EnviROnMEnT
Operating temperature 32˚F to 104˚F
Storage temperature -4˚F to 140˚F
pRECauTiOnS
To ensure you use your product correctly and safely, read these warnings and the entire user
manual before using the product:
• Should the unit experience an electrostatic discharge, it may trigger the watch to change
modes or displays. Simply touch MODE/- to exit or to toggle back to previous display. This
is normal.
• Use a soft, slightly moistened cloth. Do not use abrasive or corrosive cleaning agents,
as these may cause damage. Use luke warm water and mild soap to clean the watch
thoroughly after each training session. Never use the products in hot water or store them
when wet.
• Do not subject the product to excessive force, shock, dust, temperature changes, or
humidity. Never expose the product to direct sunlight for extended periods. Such treatment
may result in malfunction.
• Do not tamper with the internal components. Doing so will terminate the product warranty
and may cause damage. The main unit contains no user-serviceable parts.
• Do not scratch hard objects against the LCD display as this may cause damage.
• Take precautions when handling all battery types.
• Remove the batteries whenever you are planning to store the product for a long period of
time.
• When replacing batteries, use new batteries as specied in this user manual.
• The product is a precision instrument. Never attempt to take this device apart. Contact the
retailer or our customer service department if the product requires servicing.
• Do not press the exposed electronic circuitry, as there is a danger of electric shock.
• Check all major functions if the device has not been used for a long time. Maintain regular
internal testing and cleaning of your device. Have your watch serviced by an approved
service center annually.
• When disposing of this product, ensure it is collected separately for special treatment and
not as normal household waste.
• Due to printing limitations, the displays shown in this manual may differ from the actual
display.
• The contents of this manual may not be reproduced without the permission of the
manufacturer.
nOTE The technical specications for this product and the contents of the user manual are
subject to change without notice.
nOTE Features and accessories will not be available in all countries. For more information,
please contact your local retailer.
abOuT OREGOn SCiEnTifiC
Visit our website (www.oregonscientic.com) to learn more about Oregon Scientic products.
If you’re in the US and would like to contact our Customer Care department directly, please
visit: https://us.oregonscientic.com/service/support.asp
For international inquiries, please visit:
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