6 Operation
32
B-390
Operation Manual, Version E
The frequency regulation generates the appropriate elec-
tric oscillation in the vibration unit. Pressing on the (+) and
(–) buttons will change the frequency. Pressing the “on/off”
button activates or deactivates frequency. Pressing “Esc”
will return you to the start menu and the set value will be
kept.
Screen 6-2:
Frequency regulation
The electrostatic dispersion unit is used to charge the
surface of the beads. The repulsion forces induced by the
equally charged surfaces prevent the beads from hitting
each other in flight, and from hitting each other as they enter
the hardening solution. The applied voltage often lies in the
range of 500 to 2000 V, depending primarily on the bead
size and the liquid flow velocity. In this way, the Encapsulator
B-390 can routinely generate bead batches with homogene-
ity greater than 95 %.
Pressing on the (+) and (–) buttons changes the electrostatic
dispersion parameter. The system needs few moments to
reach the set value. Pressing “Esc” will return you to the
start menu and the set value will be kept.
Screen 6-3:
Electrostatic dispersion unit
Pressing on the (+) and (–) buttons will change the heating
parameter. The system will need several minutes to reach
the set value. Pressing the “on/off” button activates or
deactivates heating. Pressing “Esc” will return you to the
start menu and the set value will be kept.
Screen 6-4:
Heating regulation
Note
The indicated temperature is the temperature near the heater. The temperature of the bead
producing unit and of the nozzle are some degrees lower.
When starting the heating; an internal program starts to compensate for this temperature difference
as much as possible. Therefore the real heating might be delayed for up to 2 minutes.
!
Caution
Hot surface while heating is switched on.
• Do not touch the heating block or the carrier plate while heating is switched on. The surface of
both elements becomes hot during heating!
• Allow both elements to cool down before touching them if heating has been switched on
before.
