V&P Scientific, Inc.
3
Technical Note 109
9.
The optimal mixing speed will have to be determined for each application. At higher speed
settings or with more viscous solutions, the magnetic clutches will decouple. It is best to
gradually increase the speed to the desired setting rather than jump to the predetermined
setting using the On/Off switch.
10.
To turn off the unit, first turn down the speed control knob and then turn off the power switch.
Never leave the Control Unit on with the power switch turned to 0 for long periods of time.
11.
The reservoir is made from delrin. The paddles are made from parylene coated stainless steel
with PTFE and delrin bearings. The magnets in the clutches are coated with parylene and
sealed with a special sealant to prevent them from being corroded. Use mild detergents to
clean these parts. Occasionally clean the magnets using tape to remove small bits of ferrous
metal that are attracted to the magnet as the ferrous metal bits will rust when in contact with
corrosive solutions.
Figure 3. Illustrates the assembled VP 756CP-96B Bubble Paddle Reservoir and the VP 763B
motor drive unit. The tubing for filling and draining the reservoir and for chilling or heating
the reservoir. Also illustrated are the reservoir inlet and outlet covers used in static operation.
Parts Connected
