BUCHI Encapsulator B-390 - Manual (Page 47)

7 Maintenance and repairs
47 B-390 Operation Manual, Version C
7 .4 Cleaning
! Warning
Pressure increase in the inlet-system due to clogged nozzles.
Bursting of the inlet system.
Death or serious poisoning by contact or incorporation of harmful substances at use.
• Clean nozzle immediately after use, see following section.
Wear laboratory coat
Wear protective goggles
Wear protective gloves
7 .4 .1 Cleaning the nozzle after each immobilization run
It is critical to clean the nozzle immediately after use so that the encapsulation medium (alginate, etc.)
will not dry and clog the system.
1. Leave the nozzle in place on the bead producing unit.
2. Attach a 20 mL or 60 mL syringe to the bead producing unit and inject 20 to 60 mL of distilled
water or of the solvent used for the encapsulation polymer.
3. If needed unscrew the nozzle from the bead producing unit, rinse with deionized water (see
figure 7-1) or an appropriate solvent and dry the nozzle with a flush of air.