Endress+Hauser Proline Prosonic Flow E 100 HART Operating Instructions Manual page 98

Technical data
Flow limit
Pressure loss
System pressure
Thermal insulation
98
Select the nominal diameter by optimizing between the required flow range and
permissible pressure loss.
For an overview of the full scale values for the measuring range, see the "Measuring
range" section →  91
• The minimum recommended full scale value is approx. 1/20 of the maximum full scale
value.
• In most applications, 10 to 50 % of the maximum full scale value can be considered
ideal.
[psi] [mbar]
7
450
6
400
350
5
300
4
250
3
200
150
2
100
1
50
0 0
0
0
 16 Pressure loss DN 50 to 150 (2 to 6")
To calculate the pressure loss, use the Applicator sizing tool →  90
It is important that cavitation does not occur, or that gases entrained in the liquids do not
outgas.
Cavitation is caused if the pressure drops below the vapor pressure:
In suction lines
‣
Ensure the system pressure is sufficiently high to prevent cavitation and outgassing.
For this reason, the following mounting locations are recommended:
• At the lowest point in a vertical pipe
• Downstream from pumps (no danger of vacuum)
In the case of some fluids, it is important to keep the heat radiated from the sensor to the
transmitter to a low level. A wide range of materials can be used for the required
insulation.
2 3 4
1
5 10 15
Proline Prosonic Flow E 100 HART
DN80 (3")
DN65 (2½")
DN50 (2")
DN100 (4")
DN150 (6")
5 6 [m/s]
20 [ /s]
Endress+Hauser
A0033770-EN
A0028777