Useful Information; Motor Protection - IKA T 65 D ULTRA-TURRAX Mode D'emploi

Dispersion is the dissolution and diffusion of a so-
lid, liquid or gaseous phase in a liquid that is not
consolute with that phase.
The drive shaft - driven by a Poly-V-belt – has a
fi xed speed of 7200 rpm. and, in turn, drives the
rotor. As a result, the S 65.... range of dispersion
tools that can be used achieve tip speeds of 21.9
m/sec. These tip speeds lead to optimal disper-
sing or emulsifying results in batch operation.
For operation, the T 65 D ULTRA-TURRAX
sion unit must be mounted on the IKA
lescopic stand. It must only be operated with the
S 65 KG-HH shaft and the dispersion tools from
the S 65 range (G 65 G, G 65 M, G 65 F). The
unit is switched on and off by pressing the ON
ATTENTION!
button (A) and the emergency stop button (B). If
the emergency stop switch of the dispersion unit
is not within reach, an additional emergency stop
switch must be installed within easy reach, in the
working area.
Safety disconnection device
If the telescopic stand is moved upwards when the
unit is operating, the dispersion unit must switch
off. To facilitate this, the telescopic stand must be

Useful information

equipped with a safety disconnection device. For
this purpose, we recommend the installation of
the SI 400 safety limit switch together with the SI
400 mounting support (see "Accessories").
Wiring by skilled worker
The unit is supplied without connecting cable,
as the installations on the user's premises do not
permit a standard cable length, because of the
different accommodating spaces. The layout of
connections is shown in the wiring diagram (see
"Wiring diagram"), for the information of skilled
workers.

Motor protection

The AC motor runs in ball bearings and is main-
tenance-free. In its attached control cabinet, it
has a special safety device for operation on over-
current and undervoltage (undervoltage trip), to
permanently switch the motor off and avoid any
thermal damage. The unit can only be put back
in service when the power supply required for
the motor is restored.
The basic connection and performance data for
the motor can be obtained from the motor ra-
ting plate.
The connection facility for the IKA
limit switch is also provided in the motor control
cabinet.
The unit heats up in service. The generously-pro-
portioned cooling surfaces on the motor achieve
an even distribution and emission of the heat.
disper-
®
With small quantities, a rapid heating-up of
T 653 te-
®
the medium must be expected, because of
the high motor power, which is mainly con-
verted into heat.
If the viscosity of the material to be processed
is too high (above about 5 Pas.), or the vapour
pressure of the liquid is very high, the fl ow
is unable to follow the rapid accelerations of
the generator, and breaks down. This leads to
dry running, and hence to destruction of the
sealing surfaces. Such substances must be fed
to the generator by force. Use a continuous
fl ow unit (i.e. IKA
an additional pump.
SI 400 safety
®
Laborpilot) for this, and/or
®
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