V&P Scientific, Inc.
6
Technical Note 104A
CARE
1)
Cleaning:
a)
The Bubble Paddle Reservoir can be cleaned with detergents and rinsed with distilled water.
Follow with a rinse with an alcohol such as Ethanol or Isopropanol for easy drying. These
operations should be done with the sealed bearings in place (see below for more information).
b)
The Motor Base and Control Unit can be wiped off with a towel dampened with a dilute
detergent, followed by water and then alcohol (also with a dampened towel).
c)
DO NOT IMMERSE Motor Base and Control Unit in liquid of any kind!!
2)
Sterilization/Disinfection:
a)
Do not autoclave Reservoir, Motor Base or Control Unit.
b)
Disinfect Reservoir by filling with a 10% bleach solution and soaking for 5 minutes. Follow with
sterile water rinses and a final rinse with an alcohol such as Ethanol or Isopropanol for easy drying
3)
Removing and replacing Bubble Paddles can be done for cleaning or if paddle has been damaged.
a)
Remove VP 759-1 series Reservoir from the VP 769-1 Motor Base as described in step 3 (page
3).
b)
Turn the Bubble Paddle so that it is in a vertical position (see Figure 8b, page 4).
c)
Grasping the coupler gently pull the drive shaft ~4 mm out of the sealed bearing to release the
Bubble Paddle (see Figures 8a and 8b).
DO NOT pull the drive shaft out all of the way out of the
sealed bearing to release the Bubble Paddle.
. This is not recommended because of the risk of
damage to the seal in the bearing.
d)
Lift up in the far end of the Bubble Paddle (see Figure 8a and 8b). Pull Bubble Paddle out of the
drive shaft slot by pulling away from the sealed bearing.
Figure 8. Replacement of Bubble Paddle (VP 759AL). Sealed bearing shown with coupler
and drive shaft pulled out of bearing no more than ~4mm.
8b
VP 759AL
8a
Drive
Shaft
Coupler
~4mm
Gap
Paddle in Vertical
Position
Lift
Here
Notch
Drive
Shaft
