User guide

Ultrasonic Fuel Sensor User Guide
ACCEUF100UG001 - 19 -
4.2. Installation of Round Fuel Tank
4.2.1. Observe Tank Surface
Observe the locations of obstacles such as the fuel sending unit, supply tube, and return tube.
Figure 14. Surface of Round Fuel Tank
Judge the structures and locations of obstacles inside the fuel tank based on the observation of those
obstacles on the surface.
Figure 15. Locations and Structures of Obstacles in Round Fuel Tank
4.2.2. Locate the Installation Area
The installation area of the round fuel tank is different from that of the square one. Only the location
of the tangent can reflect the true depth of the liquid. Therefore, the detector must be installed on the
tangent section perpendicular to the liquid surface and avoid obstacles in order to ensure the
precision and stability of gauged data. Locate the installation area as shown in Figure 16.
The selection of the tangent location: spread water on the surface of the fuel tank and the water will
flow along the surface to the lowest point to drop which is the tangent location perpendicular to the
liquid surface.
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