Operation
Activating and Adjusting the Electrostatics
FIRE AND EXPLOSION HAZARD
The fan (A2) and atomizing (A1) air must
be on before turning on the turbine air
(TA). Actuating the turbine air without
fan and atomizing air flow could damage
the gun and could create hazardous op-
erating conditions and result in a serious
injury and property damage.
WARNING
1. Make sure the fan (A2) and atomizing (A1) air are
on, then turn on the turbine air (TA). Refer to Fig.
13.
2. The turbine air pressure should be adjusted to 30
psi (2.1 bar) at the gun manifold inlet when air is
flowing. Do not exceed 40 psi (2.8 bar) air pres-
sure as there is no added benefit and turbine life
could be reduced.
Use the chart below to set the proper pressure at
the turbine hose inlet. Do not exceed these recom-
mended pressures or turbine life will be reduced.
Turbine Air
Hose Length
Dynamic pressure at the turbine
hose inlet required for full voltage
15 ft. (4.6 m)
36 psi (2.5 bar)
25 ft. (7.6 m)
38 psi (2.7 bar)
50 ft. (15.3 m)
40 psi (2.8 bar)
75 ft. (22.9 m)
42 psi (2.9 bar)
100 ft. (30.5 m)
45 psi (3.1 bar)
3. Check the voltage output of the gun using a high
voltage probe and meter or by reading the ES (kV)
Display Module.
NOTE: The gun’s normal high voltage reading is 60 to
70 kV. If a ball end high voltage measurement probe is
used, the gun voltage will rise to about 85 kV. This will
happen with all resistive electrostatic guns.
See
Electrical Troubleshooting on page 26 to cor-
rect voltage problems.
Activating the kV Switch
Apply a minimum of 50 psi (3.5 bar) air pressure to the
kV switch air fitting (KV) to activate it and switch to the
lower voltage setting. Refer to Fig. 13. The lower volt-
age setting is factory set to 60 kilovolts at zero micro-
amperes. To change this setting, see page 36.
The solenoid valve used to activate the kV switch must
bleed the air out of the line for the switch to draw back
to the higher voltage setting.
Spraying
ELECTRIC SHOCK HAZARD
To reduce the risk of an electric shock,
do not touch the gun electrode or come
within 4 inches (101.6 mm) of the nozzle
during gun operation.
WARNING
1. Apply a minimum of 50 psi (3.5 bar) air pressure to
the cylinder air fitting (CYL) to activate the on/off
sequence of atomization air (A1), fan air (A2), and
fluid (P1). Refer to Fig. 13.
2. Turn the gun functions off and on by using the air
solenoid valves on the cylinder (CYL) and turbine
(TA) air supply lines.
FIRE AND EXPLOSION HAZARD
If any fluid leakage from the gun is de-
tected, stop spraying
immediately!
Fluid leakage into the gun shroud could
cause fire or explosion and result in
serious injury and property damage. See
Check for Fluid Leakage, page 23.
WARNING
Triggering the Fluid Alone
1. Shut off and relieve the air pressure to the atom-
ization (A1) and fan (A2) air lines, using the bleed-
type air shut-off valves.
2. Apply 50 psi (3.5 bar) air pressure to the cylinder
air fitting (CYL) to trigger the fluid.
