Endress+Hauser Promass 84F, Техническая информация

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Proline Promass 84F
14 Hauser
Operating conditions: Installation
Installation instructions Note the following points:
• No special measures such as supports are necessary. External forces are absorbed by the construction of the
instrument, for example the secondary containment.
• The high oscillation frequency of the measuring tubes ensures that the correct operation of the measuring
system is not influenced by pipe vibrations.
• No special precautions need to be taken for fittings which create turbulence (valves, elbows, T-pieces, etc.),
as long as no cavitation occurs.
• For mechanical reasons and in order to protect the pipe, it is advisable to support heavy sensors.
• Please refer to the verification ordinances for the installation conditions of the approval for custody transfer
in question.
The necessary steps for creating a measuring system and obtaining approval from the Standards Authorities
must be clarified with the authority for legal metrology controls responsible.
Mounting location
Entrained air or gas bubbles in the measuring tube can result in an increase in measuring errors
Avoid the following locations:
• Highest point of a pipeline. Risk of air accumulating.
• Directly upstream of a free pipe outlet in a vertical pipeline.
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Mounting location
The proposed configuration in the following diagram, however, permits installation in a vertical pipeline. Pipe
restrictors or the use of an orifice plate with a smaller cross-section than the nominal diameter prevent the
sensor from running empty during measurement.
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Installation in a down pipe (e.g. for batching applications)
1 Supply tank
2 Sensor
3 Orifice plate, pipe restriction (see Table following page)
4 Valve
5 Batching tank
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2
3
4
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