020-17467-00 Instructions For Use PadMixer 1000 Premium RevD
5.6 Creating a recipe
Follow the instruction in chapter 4 to create a new recipe and set all desired parameters.
5.6.1 Guidelines to define the correct connection height
The minimum height has to be defined based on the system and mixing tank setup. In
general, the correct minimum height is the distance of the mixing tank bottom plate to the
floor added to the mixing biocontainer height.
Note: If the mixing tank is not positioned on the floor (e.g. on a floor balance), or if the drive
is modified in height, the correct connection height needs to be recalculated.
Note: If the mixing tank is not positioned on the floor (e.g. on a floor balance), or if the drive
is modified in height, the correct connection height needs to be recalculated. Also if custom
mixing tanks are used, the connection height needs to be redefined. The easiest way to
define the connection height is to measure the distance from the floor to the bottom of the
tank and to add a certain height depending on the mixing biocontainer size. These values
are stated in the table below.
Table 1: Calculation to determing the correct connection height
Nominal
biocontainer
size (L)
Recommended connection level
= Distance between floor to bottom of tank + ... mm
25
270
50
380
200
614
500
725
1000
1098
5.6.2 Mixing speed and mixing angle limitations
The maximum mixing angle that can be installed is 25°. The maximum mixing speed
possible is 150RPM. However, when certain combinations are used to achieve a very high
mixing turbulence the system will show vibrations. This is mainly the case for the larger
volumes. In order to run the system without excessive vibration and hence possible damage
to the drive and mixing biocontainer, Pall strongly recommends to use a limited mixing speed
and angle combination for the larger mixing biocontainer sizes. An overview with the
recommended RPM limits for the different mixing biocontainers is shown in Table 2.
