PROline Prosonic Flow 93 PROFIBUS-DP/-PA 7 Maintenance
Endress+Hauser 117
7 Maintenance
The Prosonic Flow 93 flow measuring system requires no special maintenance.
Exterior cleaning
When cleaning the exterior of measuring devices, always use cleaning agents that do
not attack the surface of the housing and the seals.
Coupling fluid
A coupling fluid is required to ensure the acoustic link between the sensor and the
piping. This is applied to the sensor surface during commissioning. Periodic
replacement of the coupling fluid is usually not required.
Fig. 70: Application of the coupling fluid
1 Coupling fluid
2 Sensor surface Prosonic Flow W
3 Sensor surface Prosonic Flow U
F06-9xxxxxxx-00-05-06-xx-001
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