Calibration Possibilities Of The Bc 2209 Mhr - Sigma BC 2209 MHR STS Manual Del Usuario

8 MEASURING tHE ALtItUDE
When the equipment is "sleeping" (clock and model name in the display) the last displayed
actual altitude is saves. When it "wakes" the computer adopts this saved actual altitude as
the reference altitude. The BC 2209 MHR thus „calibrates itself".
The barometric air pressure measurement is activated by movement of the bike or of the
BC 2209 MHR, even if the BC 2209 MHR is in sleep mode. This means that the actual
altitude is updated regularly when the bike is moved. The built-in movement sensor is so
sensitive that the system also works in a car.
There are three holes underneath the BC 2209 MHR for air pressure measurement. This
holes must always stay open and therefore require regular cleaning.
NotE: Do not push any sharp objects into the measurement hole.

8.2 CALIBRAtIoN PoSSIBILItIES oF tHE BC 2209 MHR

1. tHE HoME ALtItUDE
The "home altitude" is the altitude of your regular location (usually your residence).
This value can be found on road maps or national maps. It is programmed in the
BC 2209 MHR one time and can be calibrated within 3 seconds. The home altitude
stays saved by the BC 2209 MHR (even after a battery change).
2. tHE ACtUAL ALtItUDE
The "actual altitude" is the altitude of the place where you are currently located,
independent of your home altitude (where you started your tour, an alpine hut or other
place). The "actual altitude" is used when you are travelling by bike and you have altitude
information.
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