Ransburg Aerobell 33 AER5000, AER5001 - Manual (Page 18)

Aerbell 33 Rotary Atomizer - Operation
Ransburg
14 LN-9521-00.4
OPERATION
As with any spray finishing system, operation
of the Aerobell 33 involves properly setting the
operating parameters to obtain the best finish
quality for the coating material being sprayed,
while maintaining correct operation and reliability
of the equipment used. Adjustments to operating
parameters, which cover spraying, cleaning and
on/off control, include:
• Coating Materials
• Fluid Flow Rate Control
• Fluid Valve Control
• Turbine Speed
• Bearing Air Adjustment
• Shaping Air
• Brake Air
• Electrostatic Voltage
• Target Distance
COATING MATERIALS
The Aerobell 33 can be used with a full range of
coating material conductivities. However, with
coatings having very high conductivities, such as
waterborne paints, it may be necessary to isolate
paint supply from ground.
FLUID FLOW RATE
CONTROL
Fluid flow is controlled by an internally mounted
dual diaphragm fluid regulator. Reference the
LREG5001, DR-1 TM Plastic Fluid Regulator, Man-
ual (latest version) for detailed information.
The regulator features two independently control-
lable flow pressure ranges from the fluid output
port. The high flow range port accom-modates
higher fluid deliveries thereby providing increased
film build capabilities and minimal color change
times. The low flow range provides precise fluid
delivery control. There are seven low range
models available (1:1, 1:2, 1:3, 1:4, 1:6, 1:8, and
1:10) which can be selected based on the required
fluid flow rate.
Separate pilot signals modulate each of the reg-
ulator’s two diaphragms to control the amount of
paint being delivered from the regulator to the
atomizer bell cup. These pilot signals can be
controlled manually or automatically with closed
loop flow control system.
Because of the regulator’s dual range capabilities,
it provides the user flexibility of selecting either the
high flow range or the low flow range. Different
coating material viscosities and quick
W A R N I N G
† Electrical discharge of a high electrical
capacitance fluid/paint system can cause fire
or explosion with some materials. If arcing
occurs when a specific coating materials is
used, turn the system off and verify that the
fluid is non-flammable. In these conditions
the system is capable of releasing sufficient
electrical and thermal energy to cause igni-
tion of specific hazardous material in air.
! W A R N I N G
† Operators must be fully trained in safe
operation of electrostatic equipment. Op-
erators must read all instructions and safe-
ty precautions prior to using this equipment
(See NFPA 33, Chapter 16).
!