Installation Proline Promass E 100 Modbus RS485
20 Endress+Hauser
Inlet and outlet runs
No special precautions need to be taken for fittings which create turbulence, such as
valves, elbows or T-pieces, as long as no cavitation occurs → 20.
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Installation dimensions
For the dimensions and installation lengths of the device, see the "Technical
Information" document, "Mechanical construction" section.
6.1.2 Environmental and process requirements
Ambient temperature range
Measuring device • –40 to +60 °C (–40 to +140 °F)
• Order code for "Test, certificate", option JM:
–50 to +60 °C (–58 to +140 °F)
Safety Barrier Promass 100 –40 to +60 °C (–40 to +140 °F)
‣
If operating outdoors:
Avoid direct sunlight, particularly in warm climatic regions.
System pressure
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 liquids that have a low boiling point (e.g. hydrocarbons, solvents, liquefied gases)
• In suction lines
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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)
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Thermal insulation
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.
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