Kendro Heraeus Biofuge haemo, Instructions For Use Manual

Page: 31 / 64

Operation
27
Checking for aerosol tightness
Check the aerosol tightness of your
rotor whenever appropriate.
To carry out the test, proceed as follows:
•
Carefully clean and degrease the rotor chamber
wall, then attach an adhesive white paper strip
(about 4 x 2 cm) so that liquid leaking out of the ro-
tor may precipitate on it.
•
Fill all places of the respective rotor with water
according to the following Table. Insert the rotor
into the centrifuge and fasten it.
•
Carefully place the amount of test liquid (0.5 %
sodium fluorescein in water) specified in the col-
umn “leakage test” into the lower part of the rotor
within a virtual circle comprising the vessel bores
(not the bores themselves) using a pipette or sy-
ringe.
•
Place the rotor lid on top and screw it on.
ATTENTION: Make sure that there is no spilled
test liquid on the rotor (clean if necessary)!
•
Carry out a test run for 10 minutes at maximum
rotor speed and 23 °C ambient temperature.
•
Check the paper strip under UV light (preferentially
in a darkened room):
If there is no detectable fluorescence, the test is
considered passed.
•
Finally rinse rotor, rotor lid and lid seal in running
water and allow to dry.