Graco PrecisionFlo LT User manual

Instructions
PrecisionFlo LT™
Standard, Series B
Electronically controlled fluid dispensing packages. For professional use
only.
• Pneumatically operated fluid regulators
• EasyKey keypad interface
Not for use in explosive atmospheres.
See page 2 for a list of models and maximum working pressures.
See page 4 for Table of Contents.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
9902471
Certified to CAN/CSA C22.2 No. 1010
Conforms to
UL 3121-1
309738L
ENG

List of Models
2309738L
List of Models
Control Modules
PrecisionFlo LT
Control Module
Number
Description Power Supply Voltage Power Requirement
234129, Series B Standard PrecisionFlo LT Control Unit 93 - 264 VAC, 50-60 HZ Full Load Amps - 1
Fused Amps - 2
Fluid Modules
Precision-
Flo LT Fluid
Module
Number
Description Maximum Fluid
Inlet Pressure
Regulated Fluid
Pressure
Maximum Inbound
Air Pressure
234168 Ambient cartridge style regulator
with no flow meter
6000 psi
(41 MPa, 414 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234165 Ambient cartridge style regulator
with a G3000 flow meter
4000 psi
(28 MPa, 276 bar)
100 - 4000 psi
(0.7-28 MPa, 7-276 bar)
100 psi
(0.7 MPa, 7 bar)
234166 Ambient cartridge style regulator
with a G3000HR flow meter
4000 psi
(28 MPa, 276 bar)
100 - 4000 psi
(0.7-28 MPa, 7-276 bar)
100 psi
(0.7 MPa, 7 bar)
234167 Ambient cartridge style regulator
with a Graco helical flow meter
6000 psi
(41 MPa, 414 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234195 Ambient cartridge style regulator
with a Graco high resolution heli-
cal flow meter
6000 psi
(41 MPa, 414 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234170 Ambient mastic style regulator
with no flow meter
5000 psi
(34.4 MPa, 344 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234169 Ambient mastic style regulator
with a Graco helical flow meter
5000 psi
(34.4 MPa, 344 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234196 Ambient mastic style regulator
with a Graco high resolution heli-
cal flow meter
5000 psi
(34.4 MPa, 344 bar)
100 - 4500 psi
(0.7-31 MPa, 7-310 bar)
100 psi
(0.7 MPa, 7 bar)
234193 Heated mastic style regulator with
no flow meter
5000 psi
(34.4 MPa, 344 bar)
100 - 3500 psi
(0.7-24.1 MPa, 7-241 bar)
65 psi
(0.45 MPa, 4.5 bar)
234194 Heated mastic style regulator with
a heated Graco helical flow meter
5000 psi
(34.4 MPa, 344 bar)
100 - 3500 psi
(0.7-24.1 MPa, 7-241 bar)
65 psi
(0.45 MPa, 4.5 bar)
Standard Systems
PrecisionFlo LT
System Number
Description Configura-
tor Code
Control
Module
Fluid
Module
Cables
234284 Advanced PFlo LT Control with Ambient Car-
tridge Regulator and Helical Gear Meter
PFlo
LT-A-2-5-04-1
234190 234167 I/O-117752
234285 Advanced PFlo LT Control with a Heated Mas-
tic Regulator and Heated Helical Flow Meter
PFlo
LT-A-2-5-10-1
234190 234194 Automation-
117774

List of Models
309738L 3

Contents
4309738L
Contents
ManualConventions ........................5
Model Identification .........................8
PrecisionFlo LT ..........................8
Model Number Identification ................8
Overview ..................................9
PrecisionFlo LT Module Overview ............10
Typical PrecisionFlo LT Configurations .......11
Typical PrecisionFlo LT Configurations .......12
Typical PrecisionFlo LT Configurations .......13
Fluid Metering Assembly Overview ...........14
Installation ...............................15
Overview ..............................15
Before Beginning Installation ..............15
Installing the Control Unit ................... 16
Mounting the Control Unit .................16
Electrical Connections ...................17
Grounding Control Unit ...................17
Connecting to Power Source ..............18
Installing Fluid Metering Assembly ...........19
Connecting Fluid and Air Lines .............20
Grounding the Metering Assembly ..........20
Installing Cable Assemblies .................21
Installing the Cable Assemblies .............. 22
Checking Ground Continuity ...............23
PrecisionFlo LT Module Operation ...........24
PrecisionFlo LT User Interface ...............26
Operation Modes .......................26
Control Modes ..........................27
Automation Modes ......................28
Operation ................................29
Pressure Relief Procedure ................29
Safety Reminder ........................29
Starting the System ......................30
Loading Material ........................31
ConfiguringSoftware ......................32
Setting Flow Meter K-Factors ..............33
System Calibration ......................33
FlowRateCalibration ....................34
VerifyingFlowMeterCalibration ............35
OtherSoftwareSettings ..................35
On/OffDelays ..........................37
Shutting Down the System ................39
Communicating with PrecisionFlo LT .........40
Maintenance ..............................42
Mechanical ............................42
Electrical ..............................42
Troubleshooting ...........................43
Fluid Modules ..........................43
FlowMeter.............................44
Regulator ..............................44
Dispense Valves ........................45
Electrical Component Paths ...............46
Troubleshooting and Fault Recovery .........47
Control Assembly Service ..................51
Servicing the Panel Assembly ..............51
Software Upgrade .........................52
Display Board ..........................52
Control Board ..........................53
Panel Assembly Service ....................54
Fuse Removal ..........................54
Fuse Replacement ......................54
Replacing the Backlighting ................55
Fluid Module Service .......................56
Frequently Asked Questions ................59
Fault Reporting ...........................62
Control Assembly Parts ....................63
Control Assembly Parts (continued) ..........64
Fluid Module Parts .........................65
Fluid Module Parts (continued) ..............66
Accessory Parts ...........................67
Automation Interface Cable Assembly .......67
Operations Cable Assembly .................68
Electrical Schematics ......................69
PrecisionFlo LT Control Box ................69
TechnicalData ............................73
Kits and Accessories .......................75

Contents
309738L 5
Appendix A ...............................81
Using the PrecisionFlo LT I/O ..............81
Appendix B ...............................84
PrecisionFlo LT User Interface .............84
Appendix C ...............................95
Theory of Operation .....................95
Operation Modes ........................96
Jobs ..................................97
Typical Job Cycle .......................98
Typical Dispense Cycle ...................99
Bead Control / Vol. Monitor / Pressure Control . 99
Typical Bead Control / Vol. Monitor / Pressure
Control ...........................100
Typical Batch Dispense Cycle (I/O) .........101
Typical Batch Dispense Cycle (Timer) ......102
Continuously Running Applications .........103
FlowRateCalculation ...................104
FlowCalibration........................104
Volume Compensation ..................105
Appendix D ..............................106
Ethernet Kit 118329 .....................106
Graco Standard Warranty .................108
GracoInformation ......................108

Manual Conventions
6309738L
Manual Conventions
Warning Caution
Note
WARNING
A warning alerts you to possible serious injury or
death if you do not follow instructions.
Symbols, such as fire and explosion (shown), alert you
to a specific hazard and direct you to read the indi-
cated hazard warnings beginning on page 6.
CAUTION
A caution alerts you to possible equipment damage or
destruction if you do not follow instructions.
A note indicates additional helpful information.
WARNINGS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
• This equipment is for professional use only.
• Use the equipment only for its intended purpose. Call your Graco distributor for information.
• Read all instruction manuals, tags, and labels before operating equipment.
• Check equipment daily. Repair or replace worn or damaged parts immediately.
• Do not alter or modify this equipment. Use only Graco parts and accessories.
• Do not exceed the maximum working pressure of the lowest rated system component.
• Be sure that all spray/dispensing equipment and accessories are rated to withstand the maximum
working pressure of the pump. Do not exceed the maximum working pressure of any component
or accessory used in the system.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not exceed the maximum working temperature of the lowest rated system hose.
• Use fluids and solvents that are compatible with equipment wetted parts. See Configuring Soft-
ware in all equipment manuals. Read fluid and solvent manufacturer’s warnings.
• Always wear protective eyewear, gloves, clothing, and respirator as recommended by the fluid
and solvent manufacturer.
• Comply with all applicable local, state, and national fire, electrical, and safety regulations.

Warning
309738L 7
WARNING
FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD
Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
• Ground the equipment and the object being dispensed.
• Do not use this equipment with flammable liquids.
• Keep the dispense area free of debris, including solvent, rags, and gasoline.
• If there is any static sparking or you feel an electric shock while using the equipment, stop dispens-
ing immediately. Do not use the equipment until you have identified and corrected the problem.
• Be sure all electrical work is performed by a qualified electrician only.
• Have any checks, installation, or service to electrical equipment performed by a qualified electrician
only.
• Be sure all electrical equipment is installed and operated in compliance with applicable codes.
• Be sure power is disconnected when servicing and repairing equipment.
• Before operating the equipment, extinguish all open flames or pilot lights in the dispense area.
• Do not smoke in the dispensing area.
• Keep liquids away from the electrical components.
• Disconnect electrical power at the main switch before servicing the equipment.
TOXIC FLUID OR FUMES HAZARD
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
swallowed, or inhaled.
• Provide fresh air ventilation to avoid the buildup of vapors from the fluid being dispensed.
• Know the specific hazards of the fluid you are using.
• Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
• Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
• Avoid exposure to heated material fumes.

Warning
8309738L
SKIN INJECTION HAZARD
Spray from the gun, leaks, or ruptured components can inject fluid into your body and cause extremely
serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also
cause serious injury.
• Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgical
treatment.
• Do not stop or deflect fluid leaks with you hand, body, glove, or rag.
• Follow the Pressure Relief Procedure on page 30 and in your separate equipment manuals when-
ever you are instructed to: relieve pressure, stop dispensing, clean, check, or service the equipment;
or install or clean a nozzle.
• Tighten all the fluid connections before operating the equipment.
• Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
• Always wear eye protection and protective clothing when installing, operating, or servicing this dis-
pensing equipment.
• Never wipe off build-up around the nozzle or inlet cap until pressure is fully relieved.
MOVING PARTS HAZARD
Moving parts can pinch fingers.
• Keep clear of any moving parts when starting or operating the equipment.
HEAVY EQUIPMENT
Use adequate personnel and support devices when mounting, moving, or handling the control unit to
prevent equipment damage or personal injury.
HOT SURFACE AND FLUID HAZARD
Heated fluid can cause severe burns and can cause equipment surfaces to become very hot.
• Wear protective gloves and clothing when operating this equipment in a heated system.
• Do not touch the metal heat sink when the surface is hot.
• Allow the equipment to cool thoroughly before servicing.
• Some heated systems are designed to dispense Polyurethane (PUR) heated materials. PUR Sys-
tems are supplied with ventilation hoods, and require proper ventilation and specifically designed
system components.
WARNING

Model Identification
309738L 9
Model Identification
PrecisionFlo LT
Graco’s PrecisionFlo LT is an electronically controlled
fluid regulating package designed to meter and dis-
pense adhesives and sealants. Your equipment was
likely ordered as a configured package to fit your appli-
cator.
Model Number Identification
On your control unit, there is an ID plate with a model
number on it. Use the table on this page for explanations
of each code letter and to define what equipment was
ordered as part of the configured package from Graco.
Typical Model Number
LT-A -___ - ___ - ___ - ___
Code A B C D
Example: LT-A-1-2-04-5
Code A: Control Unit Code B: Operations Cable
Options 1-3 Options 1-N
1. Standard 1. High Flex 25’
2. Advanced 2. High Flex 60’
3. Automation Integrated 3. High Flex 125’
4. Standard Flex 25’
Code C: Fluid Regulator 5. Standard Flex 60’
Options 01-10 6. Standard Flex 125’
01. Ambient Cartridge Regulator / No Flow Meter 7. Low Flex 25’
02. Ambient Cartridge Regulator / G3000 Flow Meter 8. Low Flex 60’
03. Ambient Cartridge Regulator / G3000 HR Flow Meter 9. Low Flex 125’
04. Ambient Cartridge Regulator / Helical Flow Meter N. None
05. Ambient Cartridge Regulator / HR Helical Flow Meter
06. Ambient Mastic Regulator / No Flow Meter Code D: Language
07. Ambient Mastic Regulator / Helical Flow Meter Options 1-8
08. Ambient Mastic Regulator / HR Helical Flow Meter 1. English
09. Heated Mastic Regulator / No Flow Meter 2. French
10. Heated Mastic Regulator / Helical Flow Meter 3. German
4. Italian
5. Japanese
6. Korean
7. Portuguese
8. Spanish

Overview
10 309738L
Overview
What This Manual Includes
This manual provides detailed information about the
PrecisionFlo LT control unit and operation of the Preci-
sionFlo LT system. Specific information on the fluid
module for example is contained in other instruction
forms supplied with each component as part of the Pre-
cisionFlo LT system.
Instruction Manual Conventions
Reference numbers (10) and letters (A) in parentheses
in this manual refer to the numbers and letters in the
illustrations.
Unless otherwise specified, the step-by-step procedures
in this manual must be performed in numerical order.
Procedures that contain a list preceded by bullets can
be performed in any order.
Abbreviations and Acronyms
PrecisionFlo LT Definitions
Abbreviation: Stands For:
COM common
FM flow meter
GND ground
msec milliseconds
OP operations cable
psi pounds per square inch
PVC poly vinyl chloride
V volts
VAC volts AC
VDC volts DC
Component Description
Control Unit The PrecisionFlo LT control unit con-
tains the electronics used to control
the fluid module.
PrecisionFlo LT
System
The control unit, fluid module, and all
cables and sensors used to measure
and control the fluid application.
Automation
Controller
An external electronic (automation)
system having some control interac-
tion via electronic signals with the
PrecisionFlo LT system.
EasyKey EasyKey is the type of interface used
to set up, display, operate and monitor
the PrecisionFlo LT system.
Fluid Module The fluid module includes compo-
nents that control and monitor fluid
dispensing, such as a flow meter and
regulator.

PrecisionFlo LT Module Overview
309738L 11
PrecisionFlo LT Module Overview
The block diagram in FIG. 1 shows an example of the
PrecisionFlo LT module, robot I/O signals, and wire
numbers.
The fluid metering assembly contains the components
that control and monitor fluid dispensing. It can be
attached to an automation arm or mounted on a pedes-
tal.
The control assembly sends continuous voltage signals
to the PrecisionFlo LT fluid assembly regulator to control
fluid pressure and the opening and closing of the dis-
pense valve.
The control assembly receives input from the automa-
tion controller. The control assembly uses these inputs
to determine the signals it should send to the fluid
metering assembly.
The PrecisionFlo LT fluid regulator is electrically con-
trolled by the PrecisionFlo LT module, and consistent
material flow is assured by a closed-loop pressure or
closed-loop flow control design. The module responds
to automation-supplied signals to provide an accurate
and consistent output flow based on a comparison of
actual to desired flow rates. The pneumatic regulator
uses air pressure to control fluid pressure and to pro-
vide fast response to electronic commands and ensure
a precisely controlled, continuous flow of material.
FIG.1
"
"
Automation Controller
Job Complete (3310)
Dispense (3290)
Flow Command (3150)
Fault Present (2710)
Dispenser Ready (2680)
Min Volume Dispensed (2770)
In Cycle (2740)
Flow Rate (3210)
Gun On
V/P
Flow Meter
Outlet Pressure
PrecisionFlo LT
Fluid Metering Assembly
PrecisionFlo LT
Control Assembly
D

Typical PrecisionFlo LT Configurations
12 309738L
Typical PrecisionFlo LT Configurations
Major components in a typical PrecisionFlo LT installation.
FIG.2
5*
4
1*
8
7
4
3
6*
9
10
2*
11*
Air Supply
Drop Site
Note: For proper operation of filter assembly, filter orientation must be such that the bowls are orientated so the
bowls are always perpendicular to the ground (i.e. do not attach to robotic arms, as the filters may not remain in the
proper orientation.)
No. Description
1* PFlo Control Assembly
2* PFlo Fluid Metering Assembly
3 Applicator/Dispense Valve
4 User Interface
5* PFlo LT Automation Control Cable Interface
6* PFlo LT Operations (OP) Cable
7 Fluid Supply System
8 Fluid Supply Header
9 Filter Module
10 Automation Controller
11* Filter Assembly
* included

Typical PrecisionFlo LT Configurations
309738L 13
Typical PrecisionFlo LT Configurations
Optional Temperature Conditioned System
FIG.3
5
3
2*
11
7*
1*
6*
9
4
13
12
13
8
14*
No. Description
1* PFlo LT Control Assembly
2* PFlo LT Fluid Metering Assembly
3 Water Conditioned Applicator / Dis-
pense Valve
4 Automation Controller
5 Sealer Automation
6* PFlo LT Automation Control Cable
Interface
7* PFlo LT Operations (OP) cable
8 Fluid Supply System
9 Water Jacketed Supply Hose
10 Water Jacketed Dispense Hose
11 Temperature Control Unit
12 RTD Cable
13 Water Hose
14* Filter Assembly
* included
Air Supply
Drop Site

Typical PrecisionFlo LT Configurations
14 309738L
Typical PrecisionFlo LT Configurations
Major components in a typical heated PrecisionFlo LT installation.
FIG.4
7
4
3
2*
9
6*
1*
4
5*
8
10
Air Supply
Drop Site
11*
No. Description
1* PFlo LT Control Assembly
2* PFlo LT Fluid Metering Assembly
3 Applicator/Dispense Valve
4 Sealer automation
5* PFlo LT Automation Control Cable Interface
6* PFlo LT Operations (OP) Cable
7 Heated Fluid Supply System
8 Fluid Supply Hose
9 2 - Zone Accessory Heat Control
10 Automation Controller
* included

Fluid Metering Assembly Overview
309738L 15
Fluid Metering Assembly Overview
Pneumatic Fluid Metering Assembly
The fluid metering assembly in FIG. 5 can be attached to
an automation arm, or mounted on a pedestal. Main
components of the fluid metering assembly are:
•PrecisionFlo LT pneumatic fluid regulator (A)
•Optional flow meter (B) to precisely measure the
amount of fluid dispensed
•Solenoid air valve (C) that controls a dispense valve
•Voltage to pressure (V/P) controller (D) for adjusting
the air pressure to the fluid regulator (A)
PrecisionFlo LT Pneumatic Fluid
Regulator
The PrecisionFlo LT pneumatic fluid regulator is a preci-
sion fluid pressure regulator that uses air pressure to
control fluid pressure and to provide fast response to
electronic commands and ensure a precisely controlled,
continuous flow of material.
The PrecisionFlo LT module combines continuous pres-
sure control with the ability to change bead profiles
quickly. When used with one of the optional flow meters,
the PrecisionFlo LT module automatically adjusts for
fluctuations in the operating environment, such as mate-
rial viscosity, temperature, tip wear, and automation
speed, while maintaining the desired dispense rate. The
module responds to automation-supplied signals to pro-
vide an accurate and consistent output flow based on a
comparison of actual to desired flow rates.
Typical Fluid Applications
•PVC sealer
•Plastisols
•Sound deadening materials
•Body panel reinforcement
•Silicones
•Hot melt
FIG.5
"
"
BA
C
D

Installation
16 309738L
Installation
Overview
The basic steps to install a Graco PrecisionFlo LT system are shown below. See the separate component manuals
for detailed information.
A number of different types of applicators can be used with the system. Refer to the manual for your applicator.
Before Beginning Installation
•Have all system and component documentation
available during installation.
•See component manuals for specific data on compo-
nent requirements. Data presented here applies to
the PrecisionFlo LT assemblies only.
•Electrical schematics are included in this manual.
Refer to the schematics as required when connect-
ing power and I/O signals.
•Be sure all accessories are adequately sized and
pressure-rated to meet system requirements.
•Use the Graco PrecisionFlo LT control unit only with
the PrecisionFlo LT fluid module.
Installation Steps
1. Mount LT control unit
2. Ground LT control unit
3. Mount fluid plate
4. Connect cables between the LT control unit and:
a. Junction box of the fluid module (OP cable)
b. Automation or cell controller (automation I/O cable)
5. Check ground continuity
6. Connect air and fluid lines
a. Connect fluid lines between fluid module and applicator. Connect fluid supply line and air supply to module
b. Plumb filter assembly near air drop site that will be used for fluid metering assembly
c. Connect other fluid and air lines to additional system components as instructed in their manuals
7. Connect control unit to power source

Installing the Control Unit
309738L 17
Installing the Control Unit
Mounting the Control Unit
•Select a location for the PrecisionFlo LT control unit
that allows adequate space for installation, service,
and use of the equipment. See FIG.6.
•Mount the control unit so that the disconnect is read-
ily accessible and located 54-67 in. (137-170 cm)
above the floor.
•For best viewing, the control display should be 60-64
in. (152-163 cm) from the floor.
•Ensure all fluid lines, cables, and hoses easily reach
the components to which they will be connected.
•Ensure there is sufficient clearance around the con-
trol unit to run cables to other components.
•Ensure there is safe and easy access to an appropri-
ate electrical power source. The National Electric
Code requires 3 ft. (0.91 m) of open space in front of
the assembly enclosure.
•Ensure the mounting surface can support the weight
of the control unit and the cables attached to it.
8. Secure the PrecisionFlo LT control unit with appro-
priate size bolts through the 0.31 in. (8 mm) diame-
ter holes in the mounting tabs.
WARNING
Read Warnings, page 6.
FIG.6
14”
356 mm
12.75”
324 mm
13.5”
343 mm
12”
305 mm
12”
305 mm
Control Unit
Back View

Installing the Control Unit
18 309738L
Electrical Connections
Follow these precautions when grounding, connecting
cables, connecting to a power source or making other
electrical connections.
Grounding Control Unit
Connect a ground wire from the ground point in the Pre-
cisionFlo LT control enclosure to a true earth ground.
See FIG. 7. A 10 AWG, 25 ft. (7.6 m) long ground wire
with clamp, Part No. 222011, is supplied.
The PrecisionFlo LT fluid module is grounded to the
control unit, using cables provided with the module.
WARNING
To reduce the risk of fire, explosion or electric shock:
•The PrecisionFlo LT control unit must be electri-
cally connected to a true earth ground; the ground
in the electrical system may not be sufficient.
•All wires used for grounding must be 18 AWG mini-
mum.
•A qualified electrician must complete all grounding
and wiring connections.
•Refer to your local code for the requirements for a
“true earth ground” in your area.
Read Warnings, page 6.
CAUTION
If power and grounding connections are not done prop-
erly, the equipment will be damaged and the warranty
voided.
CAUTION
To avoid control voltage differences, ensure that the
automation and PrecisionFlo LT equipment are
grounded to the same point.
FIG.7
Ground Terminal L1
L2

Installing the Control Unit
309738L 19
Connecting to Power Source
Have a qualified electrician connect the PrecisionFlo LT
control assembly to a grounded electrical source that
has the required service ratings, as shown in the Power
Requirement table.
To connect the control unit to the power source:
1. Remove a hole plug to use one of the pre-cut enclo-
sure holes or, if necessary for your installation, cre-
ate an opening in the control assembly enclosure.
Protect interior components from metal chips when
cutting or drilling.
2. Using the appropriate gauge wire, connect electrical
power L1 and L2 to the top of the fuse terminal
blocks, see FIG. 7, page 18.
3. Use NEMA 4 cord grip to seal the area where wires
enter the enclosure.
Power Requirements:
WARNING
To reduce the risk of fire, explosion, or electric shock,
the resistance between the supply unit components
and true earth ground must be less than 0.25 ohms.
Read Warnings, page 6.
VAC: 93 - 264
Phase: 1
Hz: 50/60
Full Load Amps. 1
Fused Amps 2

Installing Fluid Metering Assembly
20 309738L
Installing Fluid Metering Assembly
To install the fluid metering assembly hardware:
•Install the PrecisionFlo LT fluid metering assembly.
•Connect the PrecisionFlo LT fluid metering assembly
to the control assembly.
•Connect fluid lines and cables.
Installing the Fluid Metering Assembly
Preparing to Install the Assembly
Before installing the fluid metering assembly:
•See component manuals for specific data on compo-
nent requirements. Data presented here pertains to
the PrecisionFlo LT fluid metering assembly only.
•Have all system and subassembly documentation
available during installation.
•Be sure all accessories are adequately sized and
pressure-rated to meet the system's requirements.
•Use only the Graco PrecisionFlo LT fluid metering
assembly with the PrecisionFlo LT control assembly.
Installing the Assembly
1. Select a location for the PrecisionFlo LT fluid meter-
ing assembly. Keep the following in mind:
•Allow sufficient space for installing the equipment.
•Make sure all fluid lines, cables and hoses easily
reach the components to which they will be con-
nected.
•Make sure the fluid metering assembly allows the
automation unit to move freely along all axis.
•Make sure the fluid metering assembly provides
easy access for servicing its components.
2. Locate and secure the PrecisionFlo LT fluid meter-
ing assembly to the automation unit (or other mount-
ing surface) with appropriate size bolts through the
0.42 in. (10.7 mm) diameter holes in the base plate.
See the mounting dimensions in Table 1 - Measure-
ment, inches (mm) and FIG.8.
Table 1 - Measurement, inches (mm)
WARNING
Read Warnings, page 6.
WARNING
Read Warnings, page 6.
A16.0 (407)
B15.0 (381)
C11.0 (280)
D8.0 (204)
FIG.8
"
"
A
B
D
C