Ransburg, Material conductivity, Target distance – Ransburg Aerobell (Std.) Rotary Atomizer A12381 User Manual
Page 41: Turbine air

Fluid Flow Rate Check
In the test mode, the flow rate can be measured
by removing the bell cup from the atomizer, turning
the fluid flow on, and capturing the material in a
graduated beaker or measuring cup for a fixed
period of time (shaping air, high voltage, and
turbine air must be off).
>
Risk of arcing/fire hazard. The Aerobell
must be located a safe distance from the
object to be sprayed, as well as all other
grounded objects. The safe distance is at
least 1-inch per 10kV of electrostatic volt-
age. Example: If the Aerobell is used with
100kV applied voltage, it must be at least
10-inches from the object to prevent arcing.
MATERIAL
CONDUCTIVITY
The Aerobell can be used with a full range of
conductive coating materials. With coatings
having higher conductivity, it may be necessary
to isolate the material supply tank and hoses from
ground. If there is any question as to the suitability
of spraying a material with the Aerobell, contact
your Ransburg distributor or representative. (See
the following "Warning".)
>
Danger of shock and/or personal injury
can occur. Proper grounding procedures
must be followed. Personnel must never
work around the turbine when the turbine is
spinning or when high voltage is turned on.
TARGET DISTANCE
The distance from the Aerobell atomizer to target
affects the spray application. For instance, closer
distances give a smaller spray pattern and great-
er efficiency. Increasing the distance will give a
larger pattern and possibly reduce efficiency. If
the distance is too great, material may “wrap back”
on the Aerobell. However, coming too close may
cause arcing. (See the following "Warning".)
TURBINE AIR
>
If the turbine drive air is heated, check the
maximum rated temperature for the air sup-
ply tubing to be used. Polyethylene tubing is
rated for a maximum of 80°F (27°C). Nylon
tubing is rated for 200°F (95°C) maximum.
NOTE
W A R N I N G
!
>
Electrical discharge can cause fire or
explosion. If arcing occurs when a specific
coating material is used, turn the system
off immediately and notify your coating
supplier. Do not restart system until prop-
er adjustments are made to your coating
material.
W A R N I N G
!
W A R N I N G
!
Aerobell - Operation
37
LN-9264-08.2
Ransburg