Endress+Hauser Prosonic T FMU30, Краткое руководство по эксплуатации

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Mounting Prosonic T
6 Hauser
2.3 Installation conditions
2.3.1 Installation conditions for level measurements
L00-FMU30xxx-17-00-00-xx-005
• Do not install the sensor in the middle of the tank (3). We recommend leaving a distance
between the sensor and the tank wall (1) measuring 1/6 of the tank diameter.
• Protect the device against direct sun or rain (2) see the Technical Information TI00440F,
Chapter "Accessories" on the CD-ROM provided.
• Avoid measurements through the filling curtain (4).
• For solid application where bulk solid cones appear, align the sensor membrane perpendicular
to the surface.
• Make sure that equipment (5) such as limit switches, temperature sensors, etc. are not located
within the emitting angle
α
. In particular, symmetrical equipment (6) such as heating coils,
baffles etc. can influence measurement.
• Never install two ultrasonic measuring devices in a tank, as the two signals may affect each
other.
• To estimate the detection range, use the 3 dB emitting angle
α
.
Sensor
α
L
max
r
max
1½" 11° 5 m (16 ft) 0.48 m (1.6 ft)
2" 11° 8 m (26 ft) 0.77 m (2.5 ft)
1
2 3 4
5
6
1/6D
D
r
a
L