Wearing the Heart Rate Sensor
NOTE !:
When wearing the chest belt heart rate sensor, ensure that the top mark on the transmit- ter comes to the top. If worn upside down, signal’s transmittable distance might become shorter.
1.Adjust the length of the belt to fit your chest.
2.Hook the attachment belt to the electrode belt. Place the electrode area at the center of your chest. Be sure that the electrode area is held firmly against your skin.
Reference: When wearing the chest belt heart rate sensor over a shirt it is necessary to moisten the electrode area for the better results. In the winter season when skin can be dried, errors may occur even when the electrodes are in direct contact with your skin. This can be improved by moistening the electrodes.
3.Adjust the belt so that the transmitter is at the center (just above your diaphragm) of your chest.
Wear the chest belt heart rate sensor in the legible way (the top mark on the transmitter should come to the top).
Transmitter
TOP
Top mark
MSC Wireless Heart Rate Sensor
Heart Rate
4.Place the main unit in front of your body. Check if the heart rate icon 
flashes in the middle display and the heart rate appears.
If the heart rate icon 
is not flashing, check the position of the chest belt heart rate sensor, moisten the electrode area, move away from any outside electronic interference, and try again.