Ransburg Evolver 202 Solvent A11918-XXX - Manual (Page 29)

AA-07-01 2 4 2 4 2 4 2 4 2 4
Evolver 202 Robotic Atomizers - Operation
When the cleaning cycle with solvent is complete,
an air purge for several seconds is recommended
to clean and dry the ID of the dump line hose.
Paint V Paint V Paint V Paint V Paint Viscosity iscosity iscosity iscosity iscosity
The applicator is capable of atomizing paint of
most any desired viscosity. It is recommended to
keep the material viscosity as low as possible.
This allows spraying at lower fan and atomization
air pressures which result in less overspray and
higher transfer efficiency.
Fluid Flow Rate Fluid Flow Rate Fluid Flow Rate Fluid Flow Rate Fluid Flow Rate
Fluid flow is adjusted through the robot PLC by
varying the pilot pressure to either an exterior or
the on-board fluid regulator within the spray appli-
cator. Fluid pressures from the circulating system
may exceed the maximum fluid pressure rating of
the Evolver 202 applicator. Because of these high
fluid pressures, a manual step-down fluid regula-
tor must be used.
Applicator T Applicator T Applicator T Applicator T Applicator Trigger Control Air rigger Control Air rigger Control Air rigger Control Air rigger Control Air
The Evolver applicators require a minimum of 70
psig trigger control air pressure to ensure proper
operation of the applicator piston.
Electrostatic V Electrostatic V Electrostatic V Electrostatic V Electrostatic Voltage oltage oltage oltage oltage
Under no load conditions, the maximum voltage
limit for these spray applicators is 100 kV. Some
painting operations may require different voltage
settings to obtain optimum transfer efficiencies. If
Faraday cage areas are predominant on the item
being painted, a lower voltage setting would aid in
coating these areas.
When not spraying, it is recommended to set back
voltage to 30-40 kV or off between target parts.
> Most paints and solvents, including those
listed in "Polar & Non-Polar Solvents Chart" in
the "Maintenance" section, are toxic to a cer-
tain degree and flammable or combustible.
Use them only in a well ventilated atmosphere.
Use protective equipment as required in the
Material Safety Data Sheet supplied with the
substance.
W A R N I N G W A R N I N G W A R N I N G W A R N I N G W A R N I N G
!!!!!
> Failure to turn voltage OFF during color
change sequence when solvent is flowing
through the fluid nozzle, could cause a fire
or explosion.
W A R N I N G W A R N I N G W A R N I N G W A R N I N G W A R N I N G !!!!!
DUAL DUAL DUAL DUAL DUAL PURGE SPRA PURGE SPRA PURGE SPRA PURGE SPRA PURGE SPRAYING YING YING YING YING
The Evolver 202 applicator system has optional
dual purge capability. This means the applicator
can continue to spray paint, at voltage, while side
"B" or "Paint 2" is being flushed or cleaned. The
solvent valve opens and cleans from the coiled
fluid tube and up through the head and out the
nozzle. A second color is then loaded through the
"B" side. Side "A" is then color changed through
the "A" side feed lines to the applicator and valve
ports, while the waste from side "A" is exited
through the dump lines. To operate in the dual
purge mode, two (2) separate color valve
two (2) separate color valve two (2) separate color valve two (2) separate color valve two (2) separate color valve
systems or ITW MCV2 Dual Purge must be systems or ITW MCV2 Dual Purge must be systems or ITW MCV2 Dual Purge must be systems or ITW MCV2 Dual Purge must be systems or ITW MCV2 Dual Purge must be
installed.
installed. installed. installed. installed.
When the target part is finished and a color change
is desired, ensure voltage is turned off.
> If a 0 kV command is sent to the
MicroPak, a feedback fault will occur.
NOTE NOTE NOTE NOTE NOTE
Sometimes, depending upon target carrier spac-
ing, higher setback voltages may be required. The
ramp-up time for the HP-404 cascade (0-100 kV)
is approximately 3 seconds.
The MicroPak voltage ramp-down works at a rate
of 33 kV/sec.
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