Oregon Scientific SE302 User Manual Download Page 2

• 

Distance, 
current heart 
rate and pace

VIEWING MEMORY RECORDS

To view memory:

1.  The stopwatch must be stopped (press 

ST / SP / +

).

2.  Press 

MEM / -

 to enter memory mode. Odometer will be 

displayed (to reset odometer, press and hold 

SET

.)

3.  Press 

MEM / - 

to view each record.

The records will appear in the following order:

• 

Total time and maximum 
heart rate

• 

Total time and average heart 
rate

• 

Total calories and % fat 
burned

• 

In zone time: Time spent 
without exceeding your upper 
or lower heart rate limit

• 

Above zone time: Time spent 
exceeding your upper heart 
rate limit

• 

Below zone time: Time spent 
exceeding your lower heart 
rate limit

• 

Average speed and average 
pace

• 

Distance and maximum 
speed

ABOUT THE FITNESS / BODY MASS INDEX

FITNESS INDEX 

Your watch will generate a fitness index based on your aerobic 
fitness.  This  index  is  dependent  and  limited  by  the  body’s 
ability to deliver oxygen to the working muscles in training. It 
is often measured by maximum oxygen uptake (VO2 Max), 
which is defined as the highest amount of oxygen that can be 
utilized when exercising at an increasingly demanding level. 
The  lungs,  heart,  blood,  circulatory  system,  and  working 
muscles are all factors in determining VO2 Max. The unit of 
VO2 Max is ml/kg min. 
The higher the index, the fitter you are. See the tables below 
for a rough guide to what your fitness index means:

FITNESS INDEX FOR MEN

FITNESS INDEX FOR WOMEN

Fitness index

Fitness index

40

35

30

30

40

50

60

25

20

20

20

37

32

27

22

20

30

40

50

60

15

Age

Age

GOO

D

A

VE

R

AG

E

FA

IR

GOO

D

A

VE

R

AG

E

FA

IR

BODY MASS INDEX

Your  body  mass  index  is  a  measurement  of  the  relative 
percentage of fat and muscle mass in the human body.

HEALTH 

INDICATION

BMI 

RANGE

DESCRIPTION

Underweight

Less than 
18.5

Your body 
weight is   
currently lower 
than average. 
Work toward 
healthy, regular 
food intake and 
exercise routine 
to build up 
your health to 
recommended 
levels.

Recommended

18.5 to 
24.9

Your health 
is at the 
recommended 
level. Maintain 
a balanced diet 
and exercise 
to keep your 
current level of 
health. 

Overweight

25.0 to 
29.9

Your body 
weight may be 
above normal. 
Increase your 
exercise and 
work out a diet 
plan to lower 
your risk for 
serious illness.

Obese

30.0 or 
greater

At this level, you 
may be at risk for 
heart disease, 
high blood 
pressure, and 
other illnesses. 
Consult with your 
doctor to develop 
a proper health 
and fitness plan.

  NOTE 

  The  above  BMI  information  is  based  on  BMI 

classification from WHO 2004.

VIEWING FITNESS

Press 

MODE

 to enter USER Mode. Then, press 

MEM / -

 to 

display your fitness and body mass index.

  

 NOTE 

 If you have not completed your user profile, these will 

not display and “- -“ will show on the display.

AQUATIC AND OUTDOOR ACTIVITIES

The  watch  is  water-resistant  up  to  50  meters.  The  chest 
belt is splash proof, and should not be worn for underwater 
activities, as the heart rate transmission cannot occur under 
water. Refer to the table for proper guidelines.

RAIN 
SPLASHES
ETC

SHOWERING
(WARM/COOL 
WATER ONLY)

LIGHT 
SWIMMING 
/ SHALLOW 
WATER

SHALLOW 
DIVING / 
SURFING/ 
WATER
SPORTS

SNORKELING 
/ DEEP WATER 
DIVING

Watch
50m / 
165ft

OK

OK

OK

NO

NO

When using the watch for aquatic or outdoor sports activities, 
observe the following guidelines:
• 

Do not press the keys under water or with wet fingers.

• 

Rinse with water and mild soap after use.

• 

Do not use in hot water.

BATTERIES

Both the watch and heart rate chest belt use 1 x CR2032 3V 
battery. Both are already installed. See the table below for 
battery warnings.

LOW BATTERY ICON

DESCRIPTION

The battery is too low to 
run the backlight

The watch battery is low; 
the backlight cannot be 
used

The chest belt battery is 
nearly too low to send a 
signal to the watch

The batteries typically last one year. We highly recommend 
that  you  contact  the  retailer  or  our  customer  service 
department if you need to replace them.

To replace the watch battery:

1.  Remove the watchstrap.
2.  Undo the four screws and remove the back plate.
3.  Using  a  thin  blunt  instrument,  hook  the  release  catch 

and lift the clip.

4.  Remove the old battery and slide the new battery into 

the battery compartment with the + side upwards.

5.  Replace the battery clip, back plate and screws. Then 

re-attach the watchstrap.

To replace the chest belt battery:

1.  Using  a  coin,  twist  the  compartment  lid  counter-

clockwise until it clicks out of place.

2.  Remove the old battery and insert the new battery with 

the +side upwards.

3.  Replace  the  battery  compartment  lid  by  twisting  it 

clockwise until it is firmly in place.

 IMPORTANT 

• 

Non-rechargeable  and  rechargeable  batteries  must  be 
disposed of properly. For this purpose, special containers 
are  provided  for  non-rechargeable  and  rechargeable 
battery disposal at communal collection centers.

• 

Batteries  are  extremely  dangerous  when  swallowed! 
Therefore,  keep  batteries  and  small  articles  away 
from  children.  If  a  battery  has  been  swallowed  seek 
immediate medical advice.

• 

The  batteries  supplied  must  not  be  recharged, 
reactivated by any other means, dismantled, put into fire 
or short-circuited.

SPECIFICATIONS 

 

TYPE

DESCRIPTION

CLOCK

Time format

12hr / 24 hr

Date format

DD / MM or MM / DD

Year format

2001-2050 (auto-calendar)

Alarm

Alarm with daily, weekday or 
weekend settings

STOPWATCH

Stopwatch

99:59:59 (HH:MM:SS)

Resolution

1/100 sec (below 1 hour) / 1 sec 
(over 1 hour)

SMART TRAINING PROGRAM

Warm-up timer

Set to 5, 10, 15 or 0 mins

Exercise timer

99:59:59 (HH:MM:SS)

Maximum number of 
exercise timer 

By time: 99:59:59 (HH:MM:SS)
By distance: 0.1 to 99.99km OR 
0.1 to 99.99mile

Rest timer

3 mins fixed time

PERFORMANCE TRACKING

Heart Rate (HR) alarm

Sound / Visual

HR measuring range

30-240 bpm (beats per minute)

Lower HR settable 
range

30-220 bpm (beats per minute)

Upper  HR settable 
range

80-240 bpm (beats per minute)

Calories calculation

0-9,999 Kcal

% fat burned 
calculation

0-99%

SPEED FUNCTIONS

Speed range

0 to 40.0 km/hr (0 to 24.8 
mile/hr)  

Distance

0 to 9999.99km (0 to 6211.17 
miles) 

Distance tolerance

Best 10% (approximately)

Odometer

0 to 99999 km (0 to 62111 mile) 

Pace

0 to 99’59” (MM’SS”) per km 
or mile

Lower speed limit

0.1 to 39.9 km/hr or mile/hr

Upper speed limit

0.2 to 40 km/hr or mile/hr (Upper 
= lower + 0.1 km/hr or mile/hr)

TRANSMISSION

Range

62.5cm (25 inches) – may 
decrease with low battery

WATER RESISTANCE

Watch

30 meters (not actuating keys)

Chest belt

Splash proof

OPERATING ENVIRONMENT

Operation temperature

5°C to 40°C (41°F to 104°F)

Storage temperature

-20°C to 70°C (-4°F to 158°F)

POWER

Watch

1 x CR2032 3V lithium battery

Chest belt

1 x CR2032 3V lithium battery

PRECAUTIONS

To ensure you use your product correctly and safely, read 
these warnings and the entire user manual before using the 
product:

• 

Use a soft, slightly moistened cloth. Do not use abrasive 
or  corrosive  cleaning  agents,  as  these  may  cause 
damage.  Use  lukewarm  water  and  mild  soap  to  clean 
the watch thoroughly after each training session. Never 
use the product in hot water or store it when wet.

• 

Damage  to  the  product  may  occur  if  the  keys  are 
pressed underwater.

• 

Hot  steam  may  cause  damage  to  the  product.  Do  not 
wear it in steaming shower, spa or hot tub.

• 

The  product  should  be  rinsed  thoroughly  with  fresh 
water after being in contact with salt water.

• 

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 bend or stretch the transmitter part of the chest 
belt.

• 

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 specified 

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 touch 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 
collectedseparately  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 specifications 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.oregonscientific.com) to learn more 
about Oregon Scientific products. 
If you’re in the US and would like to contact our Customer 
Care department directly, please visit: 
www2.oregonscientific.com/service/support.asp 
For international inquiries, please visit: 
www2.oregonscientific.com/about/international.asp.

running  behavior,  even  the  shoes  you  are  wearing. 
Therefore, when another person uses the watch, he/she 
must recalibrate.

• 

It will take the watch about 12 seconds to return to “0” 
once you’ve stopped walking or running. 

UNIT FOR SPEED AND DISTANCE 

To set unit (Km or Miles):

1.  Press 

MODE

 to enter TRAIN Mode.

2.  Press and hold 

SET

 to enter setting mode.

3.  Press 

ST / SP / +

 or 

MEM / -

 to select UNIT setting and 

press 

SET

 to confirm.

4.  Press

 ST / SP / +

 or 

MEM / -

 to toggle between Km and 

Mile. Press 

SET

 to confirm selection.

SPEED LIMIT

Your  watch  has  a  real-time  measurement  for  speed.  The 
upper and lower speed limits can be set before working out 
with an option to have a visual speed alert when exceeding 
the upper or lower limit.

To set speed limit:

1.  Press 

MODE

 to enter TRAIN mode.

2.  Press and hold 

SET

 to enter setting mode.

3.  Press 

ST / SP / +

 or 

MEM / -

 to select LIMIT and press 

SET

 to confirm.

4.  Press

 ST / SP / +

 or 

MEM / -

 to alter the lower limit, press 

SET

 to confirm and enter the next setting.

5.  Repeat step 4 to set upper limit and speed alert.

 NOTE 

  

 will flash when the upper / lower speed limits 

are exceeded.

ABOUT THE SMART TRAINING PROGRAM

The  SMART  TRAINING  PROGRAM  enables  you  to 
complete exercise cycles effectively. It will guide you through 
from a 5-minute warm-up (default setting) to the end of your 
exercise program. In addition to monitoring your heart rate 
and altering you whenever you fall out of the range for the 
selected training zone, the Program allows you to check the 
calories consumed and the % fat burned.

USING THE SMART TRAINING PROGRAM

The SMART TRAINING PROGRAM monitors your exercise 
performance  once  you  have  entered  your  user  profile  and 
exercise profile.

 NOTE 

 You cannot use the SMART TRAINING PROGRAM 

if you are running the stopwatch.

To enter the SMART TRAINING PROGRAM:

1.  Press 

MODE

 to enter TRAIN Mode.

2.  To  start  or  stop  the  warm  up,  exercise  or  recovery 

countdown timer, press 

ST / SP / +

. Once you stop any 

countdown  timer,  you  can  press 

ST  /  SP  /  +

  again  to 

resume it. At the end of each countdown period you will 
hear a beep.
• 

3 short beeps = Warm-up time completed

• 

1 long beep = Exercise time or distance completed

• 

6 short beeps = Recovery time completed

3.  To bypass a timer and move onto the next one, press 

and hold 

ST / SP / +

.

4.  To reset the timer, press 

ST / SP / +

 to stop, then press 

and hold 

SET

.

The order of the Timer Mode is:

• 

Warm-up time

The warm-up will not display if it has been set to “0” 
in the exercise profile.

• 

Exercise time or distance

The exercise time or distance is set in the exercise 
profile.

• 

Rest time

The  rest  (recovery)  time  is  automatically  set  to  3 
minutes  and  cannot  be  changed.  When  the  timer 
reaches “0”, the recovery heart rate will flash.

  NOTE 

  You  can  enable  or  disable  the  recovery  timer  by 

selecting On / Off setting in Exercise profile (please refer to 
Set Exercise Profile – step 5).

VIEWING DATA WHILE SMART TRAINING 
PROGRAM IS RUNNING

During warm-up, exercise or rest time countdown, press SET 
to view and toggle between the following screen displays:

• 

Remaining 
w a r m - u p 
/  exercise 
/  rest  time 
with  current 
rate / speed

   

   

• 

Current 
calorie 
and % fat 
burned

• 

Distance 
traveled, 
current 
heart rate 
and pace

VIEWING SMART TRAINING PROGRAM MEMORY 
RECORDS

When  the  SMART  TRAINING  PROGRAM  has  been 
completed,  press 

MEM  /  -

  to  enter  memory  mode.  The 

odometer will be displayed (to reset, press and hold 

SET

), 

press 

MEM / -

 to view the following records:

• 

Total time and maximum 
heart rate

• 

Recovery heart rate and 
average heart rate

 

• 

Total calorie and % fat 
burned

• 

In zone time: Time spent 
without exceeding your 
upper or lower heart rate

• 

Above zone time: Time 
spent exceeding your upper 
heart rate limit

• 

Below zone limit: Time spent 
exceeding your lower heart 
rate limit

• 

Average speed and average 
pace

• 

Distance and maximum 
speed

 NOTE 

 You cannot use the SMART TRAINING PROGRAM 

and the Stopwatch function at the same time.

RECOVERY HEART RATE 

Your recovery heart rate is a good indication of cardiovascular 
fitness. The faster your heart rate recovers after the exercise, 
the better shape you are in. The watch uses a time-based 
recovery method, which checks your recovery heart rate 3 
minutes after exercise.
Compare  your  recovery  heart  rate  between  exercise 
sessions to track the effect your exercise is having.

STOPWATCH

The stopwatch function is particularly beneficial to use when 
you are unsure how long your activity will take, or when you 
want  to  measure  the  time  it  takes  to  complete  a  task  and 
your performance over that time. You can also take lap and 
split time readings when using the stopwatch function.

To  get  the  most  out  of  your  stopwatch  functions  complete 
your user and exercise profile. If you have not completed the 
user profile you will be unable to use the calorie and % fat 
burned function.

Press 

MODE

 to enter 

CHRONO Mode. You can 
now perform the following 
functions:

TASK

INSTRUCTION

Start stopwatch

Press 

ST / SP / +

Pause / resume 
stopwatch

Press 

ST / SP / +

Reset

Press 

ST / SP / + 

to pause, then 

press and hold 

SET

  NOTE 

  The  stopwatch  begins  measurement  in  min:

sec:1/100 sec. After 59 minutes pass, the display will change 
to hrs:min:sec.

VIEWING DATA WHILE STOPWATCH IS RUNNING

While  the  stopwatch  function  is  being  used,  press 

SET

  to 

view and toggle between the following screen displays:

• 

Total time / 
current heart 
rate / speed

• 

Current calorie 
and % fat 
burned

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P/N:300102406-00001-10

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