Oregon Scientific RA900 用户手册

8

EN

HR Zone setup

1.   After entering 

setup screen, toggle middle (2) button to enter HR Zone setup.

2.   Press top (

1) button to turn on HR Zone. 

3.   Press top (

1) button or press bottom (3) button to select from Fat burn 61-70%, Aerobic 71-80% or Anaerobic 81-90%. 

4.   Press middle (

2) button to confirm selection.

Anaerobic

81-90%

Aerobic

71-80%

To help achieve maximum health benefits from your workout program, it is important to know your health index as shown below:

•

   Maximum Heart Rate (MHR)

•

   Upper heart rate limit

•

   Lower heart rate limit

MHR is expressed in beats per minute. You can get your MHR from an MHR test, or you can estimate it by using the following formula:

220-age=MHR

The watch is pre-programmed with three target zone options, each with its lower and upper heart rate limit, as listed in the table below.

Fat burn

61% x MHR

70% x MHR

Aerobic

71% x MHR

80% x MHR

Anaerobic

81% x MHR

80% x MHR

The zone range from 61% to 80% of your maximum heart rate is where you achieve cardiovascular benefits, burn fat and become fitter. 

There are three categories of training as described in the table below.

Fat burn

61-70%

This is the lowest training intensity level. It is good for beginners and those who want to strengthen their cardiovascular 
systems and burn some fat.

Aerobic

71-80%

Increases strength and endurance. It works within the body’s oxygen intake capability, burns more calories and can 
be maintained for a long period of time. 

Anaerobic

81-90%

Generates speed and power. It works at or above the body’s oxygen intake capability, builds muscle and cannot be 
maintained for a long period of time. 

The upper and lower heart rate limits are calculated by multiplying your MHR by the percentages of the selected training category.

For example:

A 40-year-old training for fat burn purpose:

His upper heart rate limit [220-40(age)] x 70%
His lower heart rate limit [220-40(age)] x 61%

 Always warm up before exercise and select the training category that best suits your physique. Exercise regularly, 20 to 30 minutes per session, three to four times 

a week for a healthier cardiovascular system. 

 Determining your individual training category is a critical step in the process towards an efficient 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 specific goals. 

You could start running by following the below steps, and if you set up the interval, the distance or timer will count down. 

 Make sure the watch has enough memory, otherwise 

no memory displays when you press button after RUNNING mode. 

To view running records:

1.   In 

RUNNING mode, press top (1) button to enter the sensor searching mode, or press bottom (3) button to skip the mode if you know the sensor is paired. 

2.   Press top (

1) button to enter start mode. Counting starts while 

 flashes. Heart rate reading with icon ( 

 ) and exercise time counting (00’00’00) display. 

3.   Toggle middle (

2) button. Total distance (km)/speed (km/h), calories counting (Cal)/current exercise time (00’00’00), and time screen display.        

 

•

 If 

Auto lap is set, the lap and time counting data automatically display on the screen when they reach the setting.                                                   

 

OR                                               

 

•

 If 

Manual lap is set, press bottom (3) button to manually set for a lap. 

OR

While viewing this screen and pressing top (

1) button to pause the counting, 

 stops flashing, then press top (

1) button to select continue or press bottom (3) button to 

select stop running. If you press bottom (

3) button to stop counting, the RUNNING mode displays on the screen.