Proline Promag P 500 HART
Installation
Hauser
27
Thermal insulation
Pipes generally have to be insulated if they carry very hot fluids to avoid energy losses and
prevent accidental contact with pipes at temperatures that could cause injury. Guidelines
regulating the insulation of pipes have to be taken into account.
L
WARNING
Electronics overheating on account of thermal insulation!
‣
The housing support dissipates heat and its entire surface area must remain uncovered.
Make sure that the sensor insulation does not extend past the top of the two sensor
half-shells.
max.
A0031216
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 reducers and expanders.
The nomogram only applies to liquids with a viscosity similar to that of water.
1. Calculate the ratio of the diameters d/D.
2. From the nomogram read off the pressure loss as a function of flow velocity
(downstream from the reduction) and the d/D ratio.
100
10
0.5
d / D
[mbar]
0.6
0.7
0.8
0.9
1 m/s
2 m/s
3 m/s
4 m/s
5 m/s
6 m/s
7 m/s
8 m/s
1
D
d
max. 8°
A0029002
Summary of Contents for Hart Proline Promag P 500
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