GHM DeltaOHM HD51.3D Series, Руководство по эксплуатации

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HD51.3D…
- 10 -
V2.0
4.1 M
EASUREMENT COMPENSATION WITH COMPASS AND TILT ANGLES
For an accurate measurement, the anemometer must be correctly oriented with respect to the
North and must be installed in an exactly vertical position. In the models equipped with com-
pass and tilt angles detection (option
A in the instrument code), the misalignment with respect
to the North and the vertical axis is automatically compensated by the instrument, allowing an
accurate measurement whatever the position of the instrument.
The instrument detects two tilt angles:
Tilt_X : tilt of the instrument X axis
Tilt_Y : tilt of the instrument Y axis
N
Y
X
The tilts are considered with respect to a plane parallel to the ground.
For fixed installations with particular application needs, the compensation of the measurement
with compass and tilt angles can be disabled by the user. In this case, the information relating
to the compass and the Tilt angles are still available to help positioning the instrument correct-
ly.
North reference arrow
(opposite side) in the
technopolymer housing
North reference notch
in the aluminium alloy
housing
Sensors holder
Tilt
(positive) Tilt
(negative)
Axis (X or Y) of the instrument