Installation
3–30
Ground the System
See Fig. 3.22.
WARNING
FIRE, EXPLOSION, AND ELECTRIC
SHOCK HAZARD
To reduce the risk of fire, explosion, or
electric shock:
The PrecisionMix II 3K system must
be electrically connected to a true
earth ground; the ground in the elec-
trical system is not sufficient.
All wires used for grounding must be
10 gauge minimum.
A qualified electrician must complete all ground-
ing and wiring connections and check the
resistance as instructed on page 3–31.
Refer to your local code for the requirements for
a “true earth ground” in your area.
Also read and follow the warnings on page 1–3.
Ground the PrecisionMix II 3K system as instructed
here and in the individual component manuals. A
ground wire and clamp, part no. 222–011, is available
from Graco. Grounding instructions are continued on
page 3–31.
Controller
Connect the controller’s green-yellow ground terminal
block to the NEMA enclosure’s grounding lug. Connect
a ground wire from the enclosure to a true earth
ground. The controller enclosure and the manifold
mounting surface must be connected to the same true
earth ground point.
PrecisionMix II 3K Manifold
The mounting surface for the PrecisionMix II 3K man-
ifold must be electrically connected to the same true
earth ground point as the controller enclosure. Differ-
ent ground points may cause current to flow through
the meter cables, causing incorrect signals.
Color Change Panel
The mounting surface for the color change valves and
solenoids must be electrically connected to the same
true earth ground point as the controller enclosure.
Different ground points may cause current to flow
through the network cables, causing incorrect signals.
Operator Station
Ground the operator station to a true earth ground.
Flow Control Station
Ground the flow control stations to a true earth ground.
Gun Flush Boxes
Ground the gun flush boxes to a true earth ground.
Gun Flush Solenoid Boxes
Ground the gun flush solenoid boxes to a true earth
ground, or mount them on a grounded surface.
Flow Meters
Connect the meter cables as instructed in the manual
for your flow meter. Failure to properly connect the
grounded conductor and shield may cause incorrect
signals.
Feed Pumps or Pressure Pots
Use a ground wire and clamp to electrically connect
the pumps or pots to a true earth ground. See your
separate pump or pressure pot manual.
Air and Fluid Hoses:
Use grounded hoses only.
Spray Gun
Follow the spray gun manufacturer’s grounding
instructions.
Fluid Supply Container
Ground the container according to your local code.
Object Being Sprayed
Ground the object according to your local code.
All Solvent Pails Used When Purging
Ground the solvent pails according to your local code.
Use only metal pails, which are conductive, placed on
a grounded surface. Do not place the pail on a noncon-
ductive surface, such as paper or cardboard, which
interrupts the grounding continuity.
Maintain Grounding Continuity When Purging Or
Relieving Pressure
Follow the instructions in your separate gun manual for
safely grounding your gun while purging.
Summary of Contents for PrecisionMix ii
Page 6: ...6 ...
Page 7: ...1 1 Warnings Warnings 1 ...
Page 8: ...1 2 Warnings ...
Page 11: ...Overview 2 1 Overview 2 ...
Page 12: ...2 2 Overview ...
Page 15: ...Overview 2 5 ...
Page 31: ...Installation 3 1 Installation 3 ...
Page 32: ...Installation 3 2 ...
Page 58: ...Installation 3 28 Notes ...
Page 67: ...Operation 4 1 Operation 4 ...
Page 68: ...Operation 4 2 ...
Page 83: ...Operation 4 17 Notes ...
Page 90: ...Operation 4 24 ...
Page 91: ...Screen Map 5 1 Screen Map 5 ...
Page 92: ...5 2 Screen Map ...
Page 94: ...5 4 Screen Map ...
Page 95: ...Run Monitor 6 1 Run Monitor 6 ...
Page 96: ...Run Monitor 6 2 ...
Page 103: ...Totalizers 7 1 Totalizers 7 ...
Page 104: ...Totalizers 7 2 ...
Page 108: ...Totalizers 7 6 ...
Page 109: ...System Configuration 8 1 System Configuration 8 ...
Page 110: ...System Configuration 8 2 ...
Page 142: ...System Configuration 8 34 ...
Page 143: ...Recipe Setup 9 1 Recipe Setup 9 ...
Page 144: ...Recipe Setup 9 2 ...
Page 165: ...10 1 Troubleshooting Troubleshooting 10 ...
Page 166: ...10 2 Troubleshooting ...
Page 182: ...10 18 Troubleshooting ...
Page 183: ...11 1 Service Service 11 ...
Page 184: ...11 2 Service ...
Page 192: ...11 10 Service ...
Page 193: ...12 1 Parts Parts 12 ...
Page 194: ...12 2 Parts ...
Page 207: ...12 15 Parts Notes ...
Page 228: ...12 36 Parts ...
Page 229: ...13 1 Utilities Software Utilities Software 13 ...
Page 230: ...13 2 Utilities Software ...
Page 254: ...13 26 Utilities Software ...
Page 255: ...14 1 Technical Data Technical Data 14 ...
Page 256: ...14 2 Technical Data ...
Page 259: ...14 5 Technical Data Notes ...