Set-Up And Commissioning - IKA T 65 D ULTRA-TURRAX Mode D'emploi

Telescopic stand T 653
In conjunction with the IKA
stand, the T 65 D dispersion unit can also be used
for tall mixing vessels.
For information on this product, please refer to
the operating instruction "Telescopic stands".
The rotor/ stator priciple
Due to the high rotation speed of the rotor, the
medium to be processed is automatically drawn
axially into the dispersion head and then forced
radially through the slots in the rotor/stator ar-
rangement.
The high accelerations acting on the materi-
al produce extremely strong shear and thrust
forces. In addition, high turbulence occurs in the
shear gap between rotor and stator, which provi-
des optimum mixing of the suspension.
Assembly and electrical installation of the
dispersion unit
As shown in the diagram, the dispersion unit is
mounted on the T 653 telescopic stand with two
M12 hexagon socket head (Allen) screws and
toothed lock washers. The screws and toothed
lock washers are included in the delivery package
of the stand. An assistant is required for screwing
on the dispersion unit.
The dispersion effectiveness is heavily dependent
on the product of the shear gradient and the
T 653 telescopic
®
time the particles spend in the shear zone. The
optimum range for the circumferential velocity
of the rotor/stator arrangement is 1 to 24 m/s.
A processing time of a few minutes is usually
suffi cient to produce the desired fi neness. Long
prccessing times bring only insignifi cant impro-
vements in the obtainable fi neness; the energy
expended serves merely to increase the tempe-
rature of the medium.

Set-up and commissioning

The telescopic stand must be installed such
that it does not tilt or slide about. It must not
move about when the unit is operating.
Particular danger points, such as crushing/
trapping positions, rotating parts, locking
screws for the stand column, are identifi ed
by an exclamation mark in the "Dispersion
unit assembly" diagram. Particular regard
should be paid to these danger points when
the unit is in service!
The electrical connections of the dispersion unit
must be made by a skilled worker in accordance
with the wiring diagram (see "Wiring diagram").
Mounting the safety limit switch
There is a danger of trapping between the
safety limit switch, switch contact and the
end stop!
Mount the SI 400 safety limit switch together
with the SI 474 mounting support on the T 653
telescopic stand. For this, follow the mounting
instructions "Safety limit switch" on the fol-
lowing page.
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