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4. Installation
4.1 Unpacking
The filter holder and some of its accessories have a protective covering
for transportation.
Carefully remove blind plugs, adhesive tape and similar materials.
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Remove the transport blocks on which the equipment is secured.
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Ensure that accessories and the torque wrench are ready for installation.
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4.2 Installation Location
The work surface must be big enough for the equipment required for the
fermentation process. It must be easy to clean and, where relevant, to disinfect.
Ensure that the setup surface is dimensioned in such a way that the device
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is easily accessible for installation and cleaning.
Ensure that the device is level.
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4.3 Inserting the Cassette
Danger of injury due to improper tensioning of the cassettes!
When tensioning the crossflow filter elements (TFF), it is imperative that the required
tightening torque be maintained. Deviating tightening torques can lead to severe
injuries or destruction of the filter cassette itself.
− You will find the required tightening torques in the documentation for the
crossflow filters (TFF).
The following tightening torques are recommended for devices with bronze
tensioning nuts, trapezoidal threads and PEEK plain washers (July 2014). Please note
that this information is only given as general recommendations for the Sartorius
cassettes listed below.
− Ultrafilter crossflow cassette: Tightened to a torque of 17 Nm
(150 lbf-in, 12.5 lbf-ft)
− Hydrosart
®
Microfilter as well as PESU AL cassette: Tightened to a torque of
25 Nm (221 lbf-in, 18,5 lbf-ft)
Keep the thread of the pull rods and tensioning nuts clean and, above all,
free of grease!
− If the threading becomes contaminated with grease or dirt, the tensioning forces
will be affected and the cassettes may be destroyed.
If appropriate, remove used cassettes [Æ Chapter „4.4 Removing the Cassette",
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page 10].
Installation
9
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