1
5
B. MODE/-
2
3
4
6
7
8
E
A. EL
D. ENTER
C. +/ST/SP
1
5
B. MODE/-
2
3
4
6
7
8
A. EL
D. ENTER
C. +/ST/SP
E
+/ST/SP
+/ST/SP
+/ST/SP
+/ST/SP
+/ST/SP
Touch
ECG
Strapless Heart Rate Monitor
MODEL: SE338 / SE338M
USER MANUAL
EN
CONTROL BUTTONS / LCD DISPLAY
A. EL: activate backlight
B. MODE/-: toggle between modes; exit current display and return to previous screen;
decrease value of the setting; toggle setting options
C. +/ST/SP: start / stop stopwatch; increase value of the setting; toggle setting options
D. ENTER: enter setting mode; conrm setting; toggle through displays
E. Bezel: touch to measure heart rate
1. : key tone deactivated
2. : key press prompt (touch EL) to activate backlight
3. : low battery indicator
4. : key press prompt (touch MODE/-)
5. : keypad locked
6. :key press prompt (touch +/ST/SP)
7. Time; heart rate measurements; mode banners; exercise time / data
8. : key press prompt (touch ENTER)
STARTING YOUR WATCH (FIRST TIME)
To unlock the watch from sleep mode, tap 3 times on the screen, then press and hold EL and
simultaneously until display appears. The watch will prompt you to set your user
ENTER
prole. (Go directly to ‘Set user prole’ section, step 4).
IMPORTANT
• To ensure accurate calculations with your exercise, you are strongly encouraged to set the
watch and user proles before exercising.
• Remember to set the proles after every battery replacement or reset.
NOTE When the watch is left idle for 30 seconds during set up, it will automatically exit the
setting mode and display the time.
TOUCH NAVIGATION
This watch uses TOUCH screen technology - no clumsy buttons. To navigate through
functions, place nger on a circle (each circle has a different function).
KEY PRESS PROMPTS
Built-in key press prompts provide an intuitive user
experience by guiding the user through settings
and displays.
MODE BANNER MAIN DISPLAY
Time (Default
display)
Exercise
Memory
Set up
SET USER PROFILE
After starting the watch for the rst time, the watch will prompt you to set the user prole. Go
directly to step 4.
For normal setting procedure:
MODE/- repeatedly to select “SET”, “TIME” will be displayed shortly after.
1. Touch
2. Touch +/ST/SP
3. Touch ENTER to enter user prole setting options.
4. Set user prole according to the following order: gender, age, weight unit, weight, height
unit, height, tness level, by touching the following buttons:
• +/ST/SP to increase value or toggle options
• MODE/- to decrease value or toggle options
• ENTER to conrm
“DONE” indicates user prole setting has been completed. This is only shown when setting
the watch for the rst time or after battery reset.
FITNESS LEVEL
The tness level is based on your own self-assessment of how t you are (depending on the
amount of exercise you regularly perform).
FITNESS
LEVEL
BEG
INT
ATH
repeatedly to navigate to “USER”.
DESCRIPTION
Beginner – You do not usually participate in programmed recreation sports
or exercise.
Intermediate – You are engaged in modest physical activity (such as
golng, horseback riding, table tennis, calisthenics, bowling, weight lifting or
gymnastics) 2-3 times a week, totaling 1 hour per week.
Athelete – You actively and regularly participate in heavy physical exercise
(such as running, jogging, swimming, cycling, or skipping rope) or engage in
vigorous aerobic exercise (such as tennis, basketball or handball).
NOTE You must enter the tness level to calculate the calories burned.
TIP The watch generates calculations based on the inputted data to show the calories
burned to help you track your progress over time. As you progress, update weight and tness
level to help the watch give you an up-to-date reection of your physical condition.
SETTING MODE
After setting your user prole, the “USER” screen below will be shown. You can continue with
the other settings by touching +/ST/SP repeatedly (see step 2 below).
However, if the user prole was set for the rst time or after battery reset, the watch will
automatically return to the default time display. Start with step 1.
MODE/- repeatedly to select “SET”, “TIME” will be displayed shortly after.
1. Touch
2. Touch +/ST/SP to toggle between settings.
Settings Setting options (Touch +/ST/SP or MODE/- and ENTER to conrm)
TIME
DATE
USER
HR ZONE
TOGGLE
* For further details please refer to the “Understanding Heart Rate” section in this manual.
Hour format
Hour / minute
Display format (day-month or month-day)
Year
Month
Day
Gender
Age
Weight unit
Weight
Height unit
Height
Activity level
On / Off
HR Zone range*
On/Off
(Enable display to auto toggle during exercise )
START EXERCISING
1. Touch MODE/- to select “EXE”,
the stopwatch screen will be
displayed shortly after.
2. Place nger on metal bezel for a few
seconds to measure heart rate.
will ash to indicate watch is detecting
a heart rate reading. A number with
bpm indicates measurement has been
successful and recorded.
3. Touch +/ST/SP to start stopwatch.
IMPORTANT To record calories burned, heart rate must be recorded.
TIP If using only stopwatch function, skip step 2 above.
TIP The more frequent you measure your heart rate during the exercise, the more accurate
calculations will be.
To record HR at any time (except in setting mode): place nger on metal bezel for a few
seconds.
NOTE When taking a reading, ensure area between bezel and metal casing is dry as
perspiration / liquid may affect circuitry and therefore the accuracy of the reading.
If you cannot get your heart rate reading within 10 seconds or if any unusual condition occurs
during heart rate reading:
• moisten your ngertip
• make sure your ngertip is warm and steady
• do not press too hard on the metallic bezel
• make sure the metallic bezel and the back of your watch are clean
NOTE
• Heart rate measurement cannot be activated if keypad is locked or battery power is low.
• Clean the watch with a soft dry cloth.
PAUSE, RESUME / STOP
If you need to take a break during exercise, touch +/ST/SP.
When ready, touch
To stop exercise and save data: Touch +/ST/SP to pause, then touch MODE/-.
After a long pause, the watch will time out and automatically save the data.
+/ST/SP to resume exercise.
UNDERSTANDING THE DISPLAYS
NORMAL CONDITIONS
To view total calories burned since last
reset: touch +/ST/SP when screen shows
default time display.
AUTOMATIC KEYLOCK
As watch is activated by touch, to prevent accidental key input this watch automatically locks
if left idle. To unlock simply tap anywhere on the screen.
MODES
There are 4 modes. Touch MODE/- to toggle through the different modes.
3. Touch ENTER to enter into individual setting.
4. Start setting the selected option by touching the following buttons:
• +/ST/SP to increase value or toggle options
MODE/- to decrease value or toggle options
•
• ENTER
5. Repeat steps 2-4 for all settings.
to conrm
DURING EXERCISE
To toggle between displays during exercise: touch ENTER .
To quick exit and return to stopwatch display at any time, touch +/ST/SP.
TIP If ‘Toggle’ function has been enabled (refer to “Setting mode” section), the below 3
screens will automatically toggle.
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!
/ BELOW ZONE!
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.
2 You have gone above your upper HR limit
1 You have gone below your lower HR limit
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 specic to you.
HR zone
settings
Fat
burning
Aerobic 71% - 80%
Anaerobic
*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 benet 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 benets, 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.
Corresponding
watch setting
50% - 60%
61% - 70%
81% - 90%
91% - 100%
Description / benet derived Examples
For beginners and those with health
problems. Gets body used to exercise
and improves health.
Improves heart’s ability to deliver
oxygen. Calories burned mostly from
stored body fat.
Increases endurance and muscle
strength. Breathing is faster and
deeper promoting proper circulation of
oxygenated blood.
Builds muscle and enhances speed,
power and performance levels. Body
requires more oxygen than it can
provide.
For athletes. Vigorous training, usually
done in short bursts to enhance power
and performance. May increase chance
of injury and soreness.
Brisk walking
Jogging, easy
cycling.
Running,
aerobic dance,
jumping rope.
Weight-lifting,
resistance
machine.
Sprinting
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
2. Touch +/ST/SP repeatedly until “DELETE” will be displayed.
3. Touch
DONE indicates the record has been cleared.
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.
MODE/- repeatedly to select “MEM”.
MODE/- to conrm.
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 proles after every battery replacement or reset.
WATER RESISTANCE
The SE338 / SE338M is water-resistant up to 50 meters (164 feet)
• 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
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
Storage temperature -4˚F to 140˚F
DD.MM.YY or MM.DD.YY
32˚F to 104˚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 specied 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 specications 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.oregonscientic.com) to learn more about Oregon Scientic products.
If you’re in the US and would like to contact our Customer Care department directly, please
https://us.oregonscientic.com/service/support.asp
visit:
For international inquiries, please visit:
https://us.oregonscientic.com/about/international.asp
WARNING Determining a suitable exercise intensity is a critical step in the process towards
an efcient 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
specic goals.
50M /
164 FT
RAIN
SPLASHES
ETC
SHOWERING
(WARM /
COOL WATER
ONLY)
OK OK OK OK NO
LIGHT
SWIMMING/
SHALLOW
WATER
SHALLOW
DIVING /
SURFING/
WATER
SPORTS
SNORKELING/
DEEP WATER
DIVING
© 2011 Oregon Scientic. All rights reserved.
300102871-00001-10