Epson PS-500 Series User Manual page 22

Heart rate measurement
Operation buttons
1
Attach the product to your wrist and press the [A] Button
Heart rate detection will start and a progress bar will be displayed.
- If the PS-500 cannot detect the heart rate within one minute the device will vibrate and an error message will
be displayed. If the device does not detect your heart rate within three minutes, the product will vibrate for
longer and an error message will be displayed. The PS-500 will then stop the heart detection.
- Press the [A] Button to start the heart rate detection again.
How to use  22