Introduction
Congratulations on having chosen the cycle computer with altimeter
functions from ECHOWELL. The easy operation of your new
Echo-a1 or Echo-a2 will let you enjoy much fun from riding. Please
read this manual carefully before using the device to get familiar with
the operation logic.
The altitude calculation of this cycle computer works by measuring
the atmospheric pressure. Since the weather is changing, the
altitude (converted from the air pressure measurement) for the same
location may be variable at different times. However, if there's no
rapid weather change, the altitude differences caused by the
weather are limited and can be generally accepted. Do not use this
computer as a specialized device for altitude measurement.
The altitude value shown in each Echo-a1 or Echo-a2 computer is
pre-calibrated by the precise instrument at the factory before
shipment. However, to get accurate basis altitude, we suggest that
you calibrate the current altitude data before each ride. And the
calibration of altitude for your Echo-a series is quite easy. (Refer to
the content about button operation.) You may obtain the altitude
information from topographic maps or the Internet. If you are
unaware of your basis altitude or do not care about the home altitude,
you may reset the altitude to zero before riding. In this way, the
cyclist can still enjoy the fun of learning the accumulated altitude
gains during the trip. The altitude data can be your reference for
riding over the same hills or mountains next time.
