11
How Do I Use the CardioMessenger?
Yellow: An illuminated or flashing yellow light indi-
cates a temporary stage. This occurs, for example,
when the CardioMessenger is looking for a connection
to the GSM network.
When the yellow light is continuously lit, there is a
problem. For further information, see the ”Trouble-
shooting” section on page 13.
Green: When the green light flashes, it means that the
CardioMessenger is operating properly.
Battery monitor light
In the following, the three states of the battery moni-
tor light are described as follows:
Red: When the light flashes red, the CardioMessenger
batteries are nearly empty.
Yellow: When the light flashes yellow, there is a prob-
lem with charging the CardioMessenger. If the light is
continuously yellow, the CardioMessenger is charg-
ing.
Green: When the light is green, the CardioMessenger
is fully charged and can be used up to 24 hours away
from the base.
Turning on the CardioMessenger
Press the on/off button of the CardioMessenger for
approximately two seconds. A brief tone will sound,
and the yellow light goes on.
After approximately ten seconds when the
CardioMessenger self-test is over, the yellow and
green lights will start to flash. The CardioMessenger
is then trying to establish a connection with the mobile
telephone network.
After five minutes at most, the yellow light will stop
flashing, and the green light will start to flash slowly.
This means your CardioMessenger is now ready to
work.
