CRYSTAL MARK SWAM-BLASTER LV-1, Руководство по эксплуатации и техническому обслуживанию

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Section IV Page 2
D. VIBRATOR
The Vibrator oscillates the Mixing Chamber. One lead of the vibrator coil is
connected to neutral; the other is in series with a rheostat, rectifier and the
Footswitch/Flow Test Switch. The rectifier passes one half of each AC input
cycle and blocks the other half, resulting in the magnetic coil turning on and off
at the rate of 60 cycles per second (50 cycles per second with 50 Hz units).
This turning on and off of the vibrator coil creates a vibrating motion, which is
imparted onto the Mixing Chamber. The frequency of the vibration is equal to
the frequency of the electrical power applied to the vibrator (50 or 60 Hz).
The vibrator's amplitude of vibration is controlled by rheostat (Powder Flow
Knob). As the rheostat is turned clockwise, the voltage is increased and
vibration amplitude is increased.
E. PRESSURE RELIEF VALVE.
If incoming pressure is excessive, the relief valve will pop open to reduce it.
Once the incoming air pressure has been lowered, the relief valve will be
automatically reset. Pulling the ring can manually test the valve.
F. AUXILIARY CHAMBER AND MIXING CHAMBER.
The Auxiliary Chamber and Mixing Chamber function together. The purpose of
the Auxiliary Chamber (which is mounted above the Mixing Chamber) is to
store powder and keep the Mixing Chambers powder level constant. This
allows the Mixing Chamber to feed a constant amount of powder into the air
stream. Powder flow rate is determined by air pressure level (set by Air
Pressure Regulator) and vibration amplitude (controlled by the Powder Flow
Knob) imparted on the Mixing Chamber by the Vibrator.
The Auxiliary Chamber does not vibrate.
G. MIXING CHAMBER
Air pressure is supplied to the Mixing Chamber, into the Orifice Plate base, up
through the pressure equalizing tube and into the top of the chamber. When
chamber air pressure is equalized (as when the unit is on but not operating) air
does not flow until the Footswitch or Flow Test Switch is actuated. Actuation of
either switch opens the Abrasive Pinch Valve tube providing a path for air to
flow through the chamber base. When the Mixing Chamber is vibrated, powder
falls through small holes in the Orifice Plate and is entrained into the air stream
flowing through the chamber base.