Endress+Hauser Proline Promag 53 Operating Instructions Manual page 16

Installation
"
!
16
3.2.6 Foundations, supports
If the nominal diameter is DN  350 (14"), mount the sensor on a foundation of adequate
load-bearing strength.
Caution!
Risk of damage.
Do not support the weight of the sensor on the metal casing: the casing would buckle and
damage the internal magnetic coils.
Fig. 14: Correct support for large nominal diameters (DN
3.2.7 Adapters
Suitable adapters to DIN EN 545 (double-flange reducers) can be used to install the sensor
in larger-diameter pipes. The resultant increase in the rate of flow improves measuring
accuracy with very slow-moving fluids.
The nomogram shown here can be used to calculate the pressure loss caused by cross-section
reduction.
Note!
The nomogram only applies to liquids of viscosity similar to water.
1. Calculate the ratio of the diameters d/D.
2. From the nomogram, read off the pressure loss as a function of fluid velocity
(downstream from the reduction) and the d/D ratio.
max. 8°
Fig. 15: Pressure loss due to adapters
Proline Promag 53 FOUNDATION Fieldbus

350 / 14")
[mbar] 100
10
d D
1
d / D 0.5 0.6
a0003209
8 m/s
7 m/s
6 m/s
5 m/s
4 m/s
3 m/s
2 m/s
1 m/s
0.7 0.8 0.9
A0011907
Endress+Hauser