Rev. 00 12/23
OptiGun GA04-E Product description
15
Principle of operation
High voltage generation
The control unit supplies a high-frequency low voltage of approx. 12 V eff.
This voltage is fed through the gun cable (1) and the gun plug to the high
voltage cascade (2) in the gun body.
In the high voltage cascade (2), the low voltage is high-transformed in a
first step (A). This primary high voltage is subsequently rectified and
multiplied in the high voltage cascade in a second step (B), until the
required high voltage is obtained at the end (approx. 110 kV). The high
voltage is now fed to the electrode (3) within the spray nozzle.
: High voltage generation
Circuit
The gun is switched on and off by the gun control module.
The control unit allows also the adjustment of low voltage, powder flow
and electrode rinsing air to the gun.
Powder flow and electrode rinsing air
The electrode rinsing air is used within the corresponding spray nozzles
and the air is supplied from the designated connection on the rear side of
the gun control unit (see the operating manual of the gun control unit).
The functions of the spray nozzles are described in the following sections.
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