KEM TRICOR TCE80 -E Series, Руководство пользователя

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Installation
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3 Installation
3.1 Mechanical
In accordance with this manual the user should select the installation position which fits the application best. To
ensure the highest degree of accuracy and repeatability, care should be taken to affix the Tricor products in a
stable process site and minimize the amount of vibration in the installation environment
3.1.1 Installation Guidelines
Coriolis mass flow meters measure the flow of a liquid or gas by vibrating the medium perpendicular to the flow
direction and measuring the effect of the inertial force of the medium. Consequently for best performance the
meter must be decoupled from external vibrations and the medium must be homogenous.
External vibration:
In case of (possible) external vibrations connect the meter mechanically rigidly to a non-vibrating point or – if this
is not possible – connect it via vibration dampers.
The small meters (TCM320 through TCM3100) can be mounted via optional mounting threads on the back side,
all other meters must not be fixed directly, but via holders connected to the external tubing, as close as possible
to the flanges of the meter.
In case of vibrating tubes a decoupling via flexible hoses might be recommended.
Piston pumps and other pumps producing a strongly pulsating flow should be decoupled hydraulically via longer
pipes, flexible tubes or other measures.
Inhomogeneous media
:
If a liquid might contain gas bubbles or solid particles, care must be taken that the gas bubbles or the solid
particles will not remain in the meter.
If a pure liquid or a liquid with possible gas bubbles is to be measured, the meter should be installed horizontally
with the meter showing downwards. This assures that gas bubbles will not accumulate in the measuring tubes.
Meters with U- shaped tubes (TCM5500 and greater) can also be mounted vertically.
If a liquid might contain solid particles, the meter should be installed horizontally with the meter showing upwards.
This assures that the solid particles will not accumulate in the measuring tubes. Meters with U- shaped tubes
(TCM5500 and greater) can also be mounted vertically
The TCM0350 through TCM3100 must not be mounted vertically, as according the diamond shaped tube
geometry gas bubbles as well as solid particles would accumulate in the meter.
2 phase media with gas bubbles (like foam) or solid particles (like paints or slurry) can be measured without any
problems, if the gas bubbles or solid particles are small compared to the tube diameter and evenly distributed.
The mounting guidelines, nevertheless, must be observed.