Prosonic M
Endress+Hauser 9
L00-FMU4xxxx-05-00-00-xx-002
A: Attenuation (dB), R: Range (m)
Example (for FMU43)
For typical solid applications, a certain amount of dust coverage is normally present. Therefore, the following
range results from the table and the diagram
These measuring conditions have been taken into account during the calculation of the maximum measuring
range in solid applications.
Operating frequency
FMU 40
FMU 41
FMU 43
10 20 30 40 50 60 70 80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
FMU 42
16
17
18
19
20
FMU 44
A [dB]
R [m]
0
• Dust-covered rubble approx. 50 dB
• no dust formation 0 dB
• No filling curtain in
detection range 0 dB
• Temperature diff. < 20°C 0 dB
approx. 50 dB => range approx. 7 m (23 ft)
Sensor Operating frequency
FMU40 approx. 70 kHz
FMU41 approx. 50 kHz
FMU42 approx. 42 kHz
FMU43 approx. 35 kHz
FMU44 approx. 30 kHz
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