LR3009
Electronic level sensor
12
5 Installation
Vertical installation from the top is preferred.
5.1 Device with single probe
For a safe function, the device requires a launching plate.
The following minimum distances between the rod and tank walls, objects in the tank (B), tank bottom
and other level sensors must be adhered to:
50mm
10mm
100mm
B
40mm
For tank walls which are not straight, steps, supports or other structures in the tank a distance of 50
mm to the tank wall must be adhered to.
When operating the device in small tanks (rod lengths shorter than 200 mm and less than 300 mm
distance to the tank wall), mount the device off-centre (eccentrically) to prevent possible interference
from tank resonances.
For probe lengths > 70 cm the rod can be considerably deflected by movement of the medium. To
avoid contacting the tank wall or other structures in the tank in such cases, the minimum distances
should be increased. Reference values:
Probe length
Distance to the tank wall or structures in the tank
70...100 cm
100 mm
100...160 cm
180 mm
If the medium is highly polluted, there is the risk that a bridge forms between the rod and the tank wall
or structures in the tank. To avoid incorrect measurements: adhere to increased minimum distances
depending on type and intensity of the soiling.
For installation in pipes:
•
The inside pipe diameter (d) must be at least 100 mm (Fig. Installation on a pipe).
•
If possible, mount the device off-centre (eccentrically).
•
Only install the device in metal pipes.
For installation in a boss:
•
The diameter of the boss (d) must be at least 60 mm (Fig. Installation in a boss).
•
The height of the boss (h) must not exceed 40 mm (Fig. Installation in a boss).
