SIGMA ROX 6.0 CAD - Manual (Page 32)

ROX 6.0
www.sigmasport.com roX 6.0 Page 32
calibrating the altitude
Altitude measurement (IAc)
7 Altitude measurement (IAC)
If the device “goes to sleep” (clock and model name appear on the display), the
last displayed current altitude is stored. when it ‘wakes up’, this stored current
altitude is used as a reference altitude. The roX 6.0 essentially calibrates itself.
The barometric air pressure is activated by the movement of the bike and the
roX 6.0, even if the roX 6.0 is in sleep mode. This means that the current
altitude is regularly updated when you change location. The integrated motion
sensor is so sensitive that the system even functions in a car.
There are three small holes on the back of the roX 6.0 for measuring the air
pressure. These holes must remain open.
Caution
Do not insert sharp objects into the measurement holes!
7.1 Calibrating the altitude
The roX 6.0’s altitude measurement is determined based on barometric air
pressure. Any change to the weather means a change to the air pressure, which
can lead to a change to your current altitude. To compensate for these changes
in air pressure, you must enter a reference altitude into the roX 6.0 (known as
calibration).
The roX 6.0 can be calibrated 3 different ways:
1. Start altitude
The start altitude is the altitude of your usual location (normally your home)
and can be found on a map. It is set on the roX 6.0 once (see section “4.5
setting the start altitude”) and can be calibrated within three seconds (see
section “5.5 calibrating the start altitude”). The start altitude is permanently
stored in the roX 6.0 (including after changing the battery).
2. Current altitude
The current altitude is the altitude of the place in which you are currently
located, irrespective of your start altitude (e.g. the trip start location, an
alpine lodge or other locations). The current altitude is used if you are out on
your bike and altitude information is provided.
3. Air pressure at sea level
If you are at an unknown altitude, you can enter the “air pressure reduced to
sea level” to calculate the current altitude. The air pressure reduced to sea
level can be found online, in the newspaper, or at airports.