Ransburg, Material conductivity, Target distance – Ransburg Aerobell (Std.) Rotary Atomizer A12381 User Manual

Page 41: Turbine air

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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

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