Wall/ceiling mounting (fixed mount)

The fixed Wall bracket 45° positive (400418) can only be used if the wall or ceiling on which the BLE Radar is to be mounted and the flume to be monitored are aligned with each other. This is the case if the wall and flume are perpendicular to each other or if the ceiling runs parallel above the flume. In both cases, the flume must also run straight for several metres.

Wall mounting (schematic representation)

Ceiling mounting (schematic representation)

The Wall bracket 45° positive can accommodate both a velocity sensor and a level sensor. Due to the fixed angle of 45° of the mount for the velocity sensor and the absence of joints, it offers less flexibility in the alignment of the sensors than the Radar wall mounting kit or the Radar wall mounting kit long (see Wall mounting (flexibly adjustable mount)). However, it is significantly less sensitive to changes in sensor alignment due to external influences during operation. The Wall bracket 45° positive is attached using three hanger bolts, each of which is clamped between two nuts. The nuts on the wall or ceiling side allow the alignment to be adjusted, while the nuts on the opposite side serve to secure the mount in place. A detailed description of this procedure is provided in chapter Fixed mounts.

Important: Please note that the mounting height also determines the horizontal distance between the mounting point and the point at which the velocity is measured. This is particularly important if both a velocity sensor and a level sensor are installed in the bracket. The two sensors perform their measurements at different points in the channel. The greater the mounting height, the further apart these measuring points are. In this case, the minimum permissible mounting height is determined by the block distance of the level sensor. The greater the mounting height, the further apart these measuring points are. In this case, the minimum permissible mounting height is determined by the blocking distance of the level sensor.

Position of the measuring points

Offsets of the sensors

o Offset wall to level sensor (80 mm + min. 10 mm1))
x Horizontal distance from the level sensor to the velocity sensor (114 mm)
y Vertical distance from the level sensor to the velocity sensor (25 mm)
h Mounting height
d Distance between the measuring points (Level and velocity

d = h + x + y

1) Distance between bracket and wall that is created by adjusting the alignment using the wall-side nuts.