Graco PrecisionFlo XL, Manual

Page: 11 / 34

309375 11
Installing Fluid Metering Assembly
Grounding the Fluid Metering Assembly
WARNING
FIRE, EXPLOSION, AND ELECTRIC
SHOCK HAZARD
To reduce the risk of fire, explosion, or
electric shock:
D
The PrecisionFlo fluid metering assem-
bly must be electrically connected to a
true earth ground; the ground in the
electrical system may not be sufficient.
D
All wires used for grounding must be
8 AWG (8.36 mm
2
) minimum.
D
A qualified electrician must complete all ground-
ing and wiring connections.
D
Refer to your local code for the requirements for
a “true earth ground” in your area.
D
Also read and follow the warnings on pages 3
through 5.
CAUTION
If power and grounding connections are not done
properly, the equipment will be damaged and the
warranty will be voided.
Ground the fluid metering assembly as instructed here
and in the individual component manuals. Make sure
the fluid metering assembly and its components are
installed correctly to ensure proper grounding.
Control Assembly
Ground the control assembly as instructed in manual
309374.
Air and Fluid Hoses
For static dissipation, use only electrically conductive
hoses or ground the valves.
Metering Module
The PrecisionFlo XL metering valve is grounded to the
control assembly through proper connection of the
electrical cable provided with the metering module.
Remote Flow Meter Installation
See PrecisionFlo XL instruction manual 309374.
Dispense Device
Follow the grounding instructions in the dispense
device documentation.
Connecting Fluid Lines and Cables
After a fluid metering assembly is connected to a
control assembly, the units are called a PrecisionFlo
module.
1. Install the fluid metering assembly on the robot or
in another appropriate place, as instructed on
page 9. Ground the system as instructed on page
11.
2. Air must be clean and dry, between 60–120 psi.
Flush air line before plumbing in air filter assembly
(234967). Plumb in air filter assembly near air drop
site (upstream of fluid plate module). Adding an air
regulator to this line will provide more consistent
dispense valve response times. Connect the air
lines to the ports on the fluid metering assembly as
shown in Fig. 6.
3. Make the fluid line connections for the fluid meter-
ing assembly according to the connection size
chart in the Technical Data section of this manual
(page 32).
4. Connect the OP cable from the control box to the
fluid plate junction box on all models. Connect the
motor cable on models with the electric regulator.
WARNING
When the second outlet port on the 198245,
198187, and 198188. Fluid plate is not used, it
must be plugged with the supplied steel plug to
prevent high pressure fluid from being emitted from
the port. High pressure fluid can cause serious
injury.