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The TDM-FF-01 is a density transmitter, whose technical characteristics
provide a continuous measurement of density and concentration of liquids,
liquid mixtures and multiphase fluids.
Its working principle is based on the law of harmonic oscillation. By
this principle a U-shaped tube, when electromagnetically excited, begins
to vibrate or oscillate at its natural frequency. The period of
oscillation is a function of density of the fluid flowing through the
tube. Thus, by measuring the oscillation period the fluid density can be
measured with highest accuracy.
The measurement principle as well as the rugged design of the oscillating
element make TDM-FF-01 only a little bit sensitive to the viscosity of
the liquid being measured, as well as to flow, pressure and normal
vibrations.
Moreover, it works regardless of the position of installation and
requires no maintenance.
The TDM-01 is at least as accurate as the usual laboratory instruments.
However, it allows to be operated directly in process with accuracy of
0.0002 g/cm3 and an impressive repeatability of 0.00005 g/cm3.
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