DG Spin
Procedure for Qualification of the Operation (OQ)
8-2
NOTE:
It is advisable regular calibration of 1 year or
that recommended by the manufacturer of the
tachometer if its calibration validity period is
lower than 1 year.
8.2
Procedure for qualification of centrifugation speed
To verify that the
DG Spin
centrifuge complies with the speed specifications
described in section 3.1 "Technical specifications" proceed as described below:
•
Switch on the
DG Spin
centrifuge to the mains and activate the Main
switch (Ref. (6), Figure 2).
•
Verify that the Display (Ref. (5), Figure 1) is switched on and the timer
indicates the predefined centrifugation time.
•
Open the Cover of the
DG Spin
centrifuge and remove the
DG Spin
Head.
•
Place 24
DG Gel
cards in the corresponding Card holders.
•
Place the
DG Spin
Head and close the Cover.
•
Press
to start a centrifugation batch.
•
Wait for 20 seconds to ensure stabilisation of centrifugation speed.
•
Vertically hold the optical tachometer on the centrifuge Cover,
pointing the reflective mark of the
DG Spin
Head shown by Ref. (1) of
Figure 10.
1111
Figure 10: Reflective point for centrifugation speed measuring