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12
Faults
6. Faults
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 cross-
flow filters (TFF).
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.
Fault
Possible causes
Filter holder
The clamping pressure is
does not seal
insufficient.
The cassette has not been
properly installed.
There is dirt in the
threading of the pull rods.
If you cannot remedy the fault yourself, please contact the Sartorius Service Center.
Sartorius Stedim Biotech GmbH
Crossflow Business Unit
August-Spindler-Strasse 11
37079 Goettingen, Germany
Phone +49.551.308.0
Fax +49.551.308.289
info@sartorius-stedim.com
www.sartorius-stedim.com
Corrective measures
Set the torque wrench and adjust the
tension on the clamping plate.
Install the cassette properly and adjust
the tension on the clamping plate.
Clean threading of the pull rods.
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