Endress+Hauser Prosonic M FMU41, Краткое руководство по эксплуатации

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Prosonic M FMU41 HART Mounting
Hauser 7
5 Mounting
5.1 Mounting requirements
5.1.1 Installation conditions for sensor for level measurements
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 1 Installation conditions
1 Distance to vessel wall: ¹⁄₆ of vessel diameter
2 Use of a weather protection cover; protection from direct sunlight or rain
3 Do not install the sensor in the middle of the vessel.
4 Avoid measurements through the filling curtain.
5 Do not install limit switches or temperature sensors inside the beam angle.
6 Measurement is affected by symmetrical fittings, e.g. heating coils and baffles.
7 Position the sensor so that it is perpendicular to the product surface.
• Install only one device per vessel: signals from multiple devices will interfere with each
other.
• Determine the detection range using a 3 dB beam angle α.
Further information is available in the Operating Instructions.
5.1.2 Installation conditions for the sensor for flow measurements
• Mount the measuring device on the upstream side immediately above the maximum upper
water level H
max
• Take the blocking distance into account
• Position the measuring device in the center of the flume or weir