Fluid Connections - Graco ProControl 1KE Plus Instructions-Parts List Manual

Fluid Connections

Connections
Fluid Fluid Connections
Note: ProControl 1KE Plus model 25B289 is for Note: Note:
applicator gun atomizing air control only and will have
no fluid inlet or outlet connections.
Fluid Fluid Fluid Inlet Inlet Inlet Connections Connections Connections
For models that come equipped with the standard
G3000 Fluid Meter, connect incoming fluid to
the provided meter check valve fitting 1/4 npt(m)
inlet port. Refer to instruction manual 308778 for
additional details regarding installation and operation
of the G3000 meter.
Note
Users are responsible for providing a fluid
inlet shut-off valve or other means of isolating
the fluid supply.
See Alternate Flow Meter and Fluid Regulator
Installation, page 26. Users must provide fluid fittings
and hose when using alternate Flow Meters or Fluid
Regulators.
3A6948A
Fluid Outlet Outlet Connections Connections
Fluid Fluid Outlet Connections
The ProControl 1KE Plus fluid outlet connection will
be made at the Fluid Pressure Transducer port 1/4
npt(f) for most models. For Flow Monitor models
(25B285–25B288), the fluid outlet connection will be
made at the fluid regulator outlet.
Note
For proper operating performance using
open- or closed-loop pressure or flow control,
the ProControl 1KE Plus Fluid Pressure I/P
Transducer must operate at an outlet air
pressure of at least 10 psi (0.7 bar). When
using 1:1 air-operated fluid regulators, this
means that the minimum pressure drop
between the 1KE fluid outlet and the gun
nozzle is at least 10 psi (0.7 bar) during the
expected spray conditions (flow rate ranges)
and material viscosities that will be used. If
the back pressure drops below 7 psi (0.5 bar),
the performance may become inconsistent.
Back pressure can be increased by using
a smaller diameter fluid hose or a longer
hose between the 1KE Plus and the spray
gun. An alternate solution would be to use a
Graco 24E471 1:2 Ratio Fluid Regulator or a
24E472 1:3 Fluid Regulator, see instruction
manual 3A0427 for details. These alternate
ratio fluid regulators have lower fluid outlet
pressure ranges, but will allow the 1KE Plus
Fluid Pressure I/P Transducer to operate at
a higher air control pressure.
Note
If the application requires greater than 50 psi
(3.5 bar) of fluid pressure at the ProControl
1KE Plus outlet, you must use either 16V680
non-hazardous location power supply
module or the 26C724 G-Barrier hazardous
location power supply module. The 16M167
hazardous location power supply module
output is limited and will not drive the fluid
pressure I/P transducer to greater than 50
psi (3.5 bar).
Installation
25