Technical data
Prosonic M FMU42 HART
44
Hauser
Order number: 71274336
For details, see "Technical Information" TI01297S and Operating Instructions
BA01778S.
14
Technical data
14.1 Input
14.1.1 Measured variable
Distance D between sensor membrane and product surface
Using the linearization function, the device uses D to calculate the following in any unit:
• Level L
• Volume V
• Flow Q over measuring weirs or open flumes
20 mA
100%
4 mA
0%
D
L
F
E
BD
SD
A0038386
31
Parameters for the correct operation of the device
BD Blocking distance
SD Safety distance
E
Empty distance
L
Level
D
Distance from the sensor membrane to the surface of the product
F
Measuring span (full distance)
14.1.2 Range
The range of the sensor depends on the measuring conditions.
• Blocking distance BD: 0.4 m (1.3 ft)
• Maximum range for liquids: 10 m (33 ft)
• Maximum range for bulk solids: 5 m (16 ft)
14.1.3 Operating frequency, sound pressure level
• Operating frequency: approx. 42 kHz
• Maximum sound pressure level, directly in front of the sensor: 149 dB
• Distance of threshold value 110 dB: 2.7 m (8.9 ft)
