Promass 40 3 Installation
Endress+Hauser 13
Fluid temperature
In order to ensure that the maximum permissible ambient temperature for the transmitter
(–20...+60 °C) is not exceeded, we recommend the following orientations:
High fluid temperature
• Vertical piping: installation in accordance with Fig. 6 / View 1
• Horizontal piping: installation in accordance with Fig. 6 / View 3
Low fluid temperature
• Vertical piping: installation in accordance with Fig. 6 / View 1
• Horizontal piping: installation in accordance with Fig. 6 / View 2
3.2.4 Heating, thermal 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 thermal insulation. Heat-
ing can be electric, e.g. with heated elements, or by means of hot water or steam pipes
made of copper.
Caution:
Risk of electronics overheating!
• Make sure that the connector between sensor and transmitter always remains free of
insulating material. Bear in mind that a certain orientation might be required, depend-
ing on the temperature of the fluid (see Section 3.2.3 “Fluid temperature”).
• Information on permissible temperature ranges → Page 54.
3.2.5 Inlet and outlet runs
There are no installation requirements regarding inlet and outlet runs. If possible, install
the sensor well clear of fittings such as valves, T-pieces, elbows, etc.
3.2.6 Vibrations
The high oscillation frequency of the measuring tubes ensures that the correct operation
of the measuring system is not influenced by pipe vibrations. Consequently, the sensors
require no special measures for attachment.
3.2.7 Limiting flow
See the information on Page 50 and 55.
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