5.3 Electronic leveling device
5.3.1 Introduction
This system is suited for fittings mounted on safety approach masts, when it is not possible to get access to the top of the
mast in its standing position.
5.3.2 Composition
The system consists of a support similar to the one used with the standard simplified leveling device, see §
. However, the support is equipped with a sensor activated with a switch, with a 10 meters long cable. The operator can
then operate the sensor from the ground, and read the elevation angle measurement when the mast is tilted to the ground.
5.3.3 Procedure
The following table instructs you on how to work with the device.
1. Lower the mast.
Note
See instruction manual of the supplied masts.
2. If the mast has been correctly installed, i.e. its tilting axis is perpendicular to the center line, a light with 0° toe-in will have
its front surface fully horizontal when the mast is tilted over 90° (down to the horizontal). With the mast in this position,
adjust the light by turning it around the tube, and then tighten the bracing clamp.
High Intensity Unidirectional Elevated Light for Approach, Threshold and Runway End and for Sequenced Flashing Lights (SFLS)
Orientation and elevation settings
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