Proline Prowirl 72 FOUNDATION Fieldbus 3 Installation
Endress + Hauser 13
3.2.4 Heat insulation
Some fluids require suitable measures to avoid heat transfer at the sensor. A wide range of materials
can be used to provide the required insulation.
When insulating, please ensure that a sufficiently large area of the housing support is exposed. The
uncovered part serves as a radiator and protects the electronics from overheating (or undercooling).
The maximum insulation height permitted is illustrated in the Fig. 7. These apply equally to both
the compact version and the sensor in the remote version.
A0001868
Fig. 7: 1 = Flanged version, 2 = Wafer version
"
Caution!
Danger of electronics overheating!
• Therefore, make sure that the adapter between sensor and transmitter and the connection
housing of the remote version is always exposed.
• Note that a certain orientation might be required, depending on the fluid temperature
Page 12.
• Information on permissible temperature ranges Page 67.
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