Graco ProMix 2KE Instruction Manual

Operation
ProMix®2KE
Pump-Based Plural Component Proportioner
Self-contained, electronic two-component paint proportioner. For professional use only.
See pages 3-4 for model information, including maxi-
mum working pressure and approvals.
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
ti15696a
3A0868L
EN

23A0868L
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Important Two-Component Material Information . 8
Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 8
Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 8
Keep Components A and B Separate . . . . . . . . . 8
Moisture Sensitivity of Isocyanates . . . . . . . . . . . 9
Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 9
Important Acid Catalyst Information . . . . . . . . . . 10
Acid Catalyst Conditions . . . . . . . . . . . . . . . . . . 10
Moisture Sensitivity of Acid Catalysts . . . . . . . . 10
Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . 11
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Component Identification and Definition . . . . . . 12
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General Information . . . . . . . . . . . . . . . . . . . . . 12
Intrinsically Safe Installation Requirements . . . 13
Display Module . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fluid Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tubing Chart and Diagrams . . . . . . . . . . . . . . . 18
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Icon Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Screen Summary . . . . . . . . . . . . . . . . . . . . . . . 25
Ranges for User Inputs . . . . . . . . . . . . . . . . . . . 26
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pre-Operation Tasks . . . . . . . . . . . . . . . . . . . . . 31
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Initial System Setup . . . . . . . . . . . . . . . . . . . . . 31
Prime the System . . . . . . . . . . . . . . . . . . . . . . . 32
Pump Calibration . . . . . . . . . . . . . . . . . . . . . . . 33
Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pressure Relief Procedure . . . . . . . . . . . . . . . . 37
Lock Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Valve Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Use of Optional USB Module . . . . . . . . . . . . . . . . 38
USB Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Download Procedure . . . . . . . . . . . . . . . . . . . . . 40
Recommended USB Flash Drives . . . . . . . . . . . 40
Run Mode Details . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Run Mix Spray (Screen 2) . . . . . . . . . . . . . . . . . 41
Run Home (Screen 1) . . . . . . . . . . . . . . . . . . . . 41
Run Mix Batch (Screen 3) . . . . . . . . . . . . . . . . . 41
Run Mix Totals (Screen 4) . . . . . . . . . . . . . . . . . 42
Run Job Number (Screen 38) . . . . . . . . . . . . . . 42
Run Log Errors (Screens 5-14) . . . . . . . . . . . . . 43
Run Pump Control (Screen 15) . . . . . . . . . . . . . 43
Setup Mode Details . . . . . . . . . . . . . . . . . . . . . . . . 44
Password (Screen 16) . . . . . . . . . . . . . . . . . . . . 44
Setup Home (Screen 17) . . . . . . . . . . . . . . . . . . 44
Configure 1-4 (Screens 18-21) . . . . . . . . . . . . . 45
Recipe 1-1 (Screen 28) . . . . . . . . . . . . . . . . . . . 46
Recipe 1-2 (Screen 29) . . . . . . . . . . . . . . . . . . . 46
Maintenance 1-3 (Screens 24-26) . . . . . . . . . . . 47
Maintenance Recommendations . . . . . . . . . . . . 47
Calibration 1 and 2 (Screens 22 and 23) . . . . . . 48
Troubleshooting (Screens 35-37) . . . . . . . . . . . 48
Dynamic Dosing . . . . . . . . . . . . . . . . . . . . . . . . 50
System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
System Alarms . . . . . . . . . . . . . . . . . . . . . . . . . 52
System Advisory/Record Codes . . . . . . . . . . . . 52
To Clear Error and Restart . . . . . . . . . . . . . . . . 52
Air Flow Switch (AFS) Function . . . . . . . . . . . . . 52
System Idle Warning (IDLE) . . . . . . . . . . . . . . . 53
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Alarm Troubleshooting . . . . . . . . . . . . . . . . . . . 55
Dynamic Dosing Restrictor Selection Graphs . . 62
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Dimensions and Mounting . . . . . . . . . . . . . . . . . . 74
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 76

Models
3A0868L 3
Models
* ProMix 2KE hazardous location equipment manufactured in the United States, with serial number beginning with
A or 01, has ATEX, FM, and CE approvals, as noted. Equipment manufactured in Belgium, with serial number
beginning with M or 38, has ATEX and CE approvals, as noted.
See page 4 for models approved for non-hazardous locations.
ProMix 2KE systems are not approved for use in hazardous locations unless the base
model, all accessories, all kits, and all wiring meet local, state, and national codes.
Approved for Hazardous Location
Class 1, Div 1, Group D (North America); Class 1, Zones 1 and 2 (Europe)
Part No. Series Ratio Pumps
Maximum
Working Pressure
psi (MPa, bar)
USB
Port Approvals*
24F102 A 3:1 Merkur, A and B 300 (2.1, 21)
24F103 A 23:1 Merkur, A and B 2300 (15.8, 158)
24F104 A 30:1 Merkur, A and B 3000 (20.6, 206)
24F105 A 45:1 Merkur, A and B 4500 (31.0, 310)
24F106 A 3:1 Merkur A,
Merkur Bellows B 300 (2.1, 21)
24F107 A 23:1 Merkur A,
Merkur Bellows B 2300 (15.8, 158)
24F108 A 35:1 Merkur A,
Merkur Bellows B 3500 (24.1, 241)
24F109 A 3:1 Merkur, A and B 300 (2.1, 21) 
24F110 A 23:1 Merkur, A and B 2300 (15.8, 158) 
24F111 A 30:1 Merkur, A and B 3000 (20.6, 206) 
24F112 A 45:1 Merkur, A and B 4500 (31.0, 310) 
24F113 A 3:1 Merkur A,
Merkur Bellows B 300 (2.1, 21) 
24F114 A 23:1 Merkur A,
Merkur Bellows B 2300 (15.8, 158) 
24F115 A 35:1 Merkur A,
Merkur Bellows B 3500 (24.1, 241) 
24Z018 A 23:1
Merkur A,
Merkur Bellows B,
Acid
2300 (15.8, 158) 
Ex ia px IIA T3 Ta = 0°C to 54°C
FM10 ATEX 0025 X
#53
Intrinsically safe and purged equipment for
Class I, Division 1, Group D, T3
Ta = 0°C to 54°C
2575
II 2 G
See Special Conditions
for Safe Use in
Warnings, page 5.

Models
43A0868L
Models (continued)
* ProMix 2KE non-hazardous location equipment manufactured in the United States, with serial number beginning
with A or 01, has FM and CE approvals. Equipment manufactured in Belgium, with serial number beginning with
M or 38, has CE approval.
Related Manuals
Approved for Non-Hazardous Location
Part
No. Series Ratio Pumps
Maximum Working
Pressure
psi (MPa, bar)
USB
Port Approvals*
24F088 A 3:1 Merkur, A and B 300 (2.1, 21)
24F089 A 23:1 Merkur, A and B 2300 (15.8, 158)
24F090 A 30:1 Merkur, A and B 3000 (20.6, 206)
24F091 A 45:1 Merkur, A and B 4500 (31.0, 310)
24F092 A 3:1 Merkur A,
Merkur Bellows B 300 (2.1, 21)
24F093 A 23:1 Merkur A,
Merkur Bellows B 2300 (15.8, 158)
24F094 A 35:1 Merkur A,
Merkur Bellows B 3500 (24.1, 241)
24F095 A 3:1 Merkur, A and B 300 (2.1, 21) 
24F096 A 23:1 Merkur, A and B 2300 (15.8, 158) 
24F097 A 30:1 Merkur, A and B 3000 (20.6, 206) 
24F098 A 45:1 Merkur, A and B 4500 (31.0, 310) 
24F099 A 3:1 Merkur A,
Merkur Bellows B 300 (2.1, 21) 
24F100 A 23:1 Merkur A,
Merkur Bellows B 2300 (15.8, 158) 
24F101 A 35:1 Merkur A,
Merkur Bellows B 3500 (24.1, 241) 
24Z017 A 23:1
Merkur A,
Merkur Bellows B,
Acid
2300 (15.8, 158) 
#53
Manual Description
3A0870 ProMix 2KE, Repair/Parts
312781 Fluid Mix Manifold, Instructions/Parts
312782 Dosing Valve, Instructions/Parts
312784 Gun Flush Box Kit 15V826
312792 Merkur Displacement Pump
312793 Merkur Bellows Displacement Pump
312796 NXT Air Motor
406714 Rebuild Kit for High Pressure
Dispense Valve
406823 Dispense Valve Seat Kit
3A1244 Graco Control Architecture
Module Programming
3A1323 16G353 Alternator Conversion Kit
3A1324 16G351 Electric Power Conversion Kit
3A1325 ProMix 2KE Stand Kits
3A1333 24H253 USB Module Kit
313542 Beacon Tower
Manual Description

Warnings
3A0868L 5
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and
warnings not covered in this section may appear throughout the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are
present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
SPECIAL CONDITIONS FOR SAFE USE
• To prevent the risk of electrostatic sparking, the equipment’s non-metallic parts should be cleaned only
with a damp cloth.
• The aluminum adapter plate may spark upon impact or contact with moving parts, which may cause
fire or explosion. Take precautions to avoid such impact or contact.
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric
shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before servicing
equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and
regulations.

Warnings
63A0868L
INTRINSIC SAFETY
Intrinsically safe equipment that is installed improperly or connected to non-intrinsically safe equipment
will create a hazardous condition and can cause fire, explosion, or electric shock. Follow local regulations
and the following safety requirements.
• Only models with model numbers 24F102-24F115 and 24Z018, utilizing the air-driven alternator, are
approved for installation in a Hazardous (explosive atmosphere) Location. See Models, page 3.
• Be sure your installation complies with national, state, and local codes for the installation of electrical
apparatus in a Class I, Group D, Division 1 (North America) or Class I, Zones 1 and 2 (Europe)
Hazardous Location, including all of the local safety fire codes, NFPA 33, NEC 500 and 516, and
OSHA 1910.107.
• To help prevent fire and explosion:
• Do not install equipment approved only for a non-hazardous location in a hazardous location. See
model ID label for the intrinsic safety rating of your model.
• Do not substitute system components as this may impair intrinsic safety.
• Equipment that comes in contact with the intrinsically safe terminals must be rated for Intrinsic Safety.
This includes DC voltage meters, ohmmeters, cables, and connections. Remove the unit from the
hazardous area when troubleshooting.
• The equipment is intrinsically safe when no external electrical components are connected to it.
• Do not connect, download, or remove USB device unless unit is removed from the hazardous
(explosive atmosphere) location.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or
servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
WARNING

Warnings
3A0868L 7
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about
your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure and disconnect all power sources.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled or swal-
lowed.
• Read Safety Data Sheet (SDS) for handling instructions and to know the specific hazards of the fluids
you are using, including the effects of long-term exposure.
• When spraying, servicing equipment, or when in the work area, always keep work area well ventilated
and always wear appropriate personal protective equipment. See Personal Protective Equipment
warnings in this manual.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
Always wear appropriate personal protective equipment and cover all skin when spraying, servicing
equipment, or when in the work area. Protective equipment helps prevent serious injury, including
long-term exposure; inhalation of toxic fumes, mists or vapors; allergic reaction; burns; eye injury and
hearing loss. This protective equipment includes but is not limited to:
• A properly fitting respirator, which may include a supplied-air respirator, chemically impermeable
gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local
regulatory authority.
• Protective eyewear and hearing protection.
WARNING

Important Two-Component Material Information
83A0868L
Important Two-Component Material Information
Isocyanates (ISO) are catalysts used in two component
materials.
Isocyanate Conditions
Material Self-ignition
Keep Components A and B
Separate
Spraying or dispensing materials that contain
isocyanates creates potentially harmful mists,
vapors, and atomized particulates.
• Read and understand the fluid manufacturer’s
warnings and Safety Data Sheet (SDS) to know
specific hazards and precautions related to
isocyanates.
• Use of isocyanates involves potentially hazardous
procedures. Do not spray with this equipment
unless you are trained, qualified, and have read
and understood the information in this manual and
in the fluid manufacturer’s application instructions
and SDS.
• Use of incorrectly maintained or mis-adjusted
equipment may result in improperly cured
material. Equipment must be carefully maintained
and adjusted according to instructions in the
manual.
• To prevent inhalation of isocyanate mists, vapors,
and atomized particulates, everyone in the work
area must wear appropriate respiratory protection.
Always wear a properly fitting respirator, which
may include a supplied-air respirator. Ventilate the
work area according to instructions in the fluid
manufacturer’s SDS.
• Avoid all skin contact with isocyanates. Everyone
in the work area must wear chemically
impermeable gloves, protective clothing and foot
coverings as recommended by the fluid
manufacturer and local regulatory authority.
Follow all fluid manufacturer recommendations,
including those regarding handling of
contaminated clothing. After spraying, wash
hands and face before eating or drinking.
Some materials may become self-igniting if applied
too thick. Read material manufacturer’s warnings and
Safety Data Sheet (SDS).
Cross-contamination can result in cured material in
fluid lines which could cause serious injury or
damage equipment. To prevent cross-contamination:
•Never interchange component A and component
B wetted parts.
• Never use solvent on one side if it has been
contaminated from the other side.

Important Two-Component Material Information
3A0868L 9
Moisture Sensitivity of
Isocyanates
Exposure to moisture (such as humidity) will cause ISO
to partially cure; forming small, hard, abrasive crystals,
which become suspended in the fluid. Eventually a film
will form on the surface and the ISO will begin to gel,
increasing in viscosity.
NOTE: The amount of film formation and rate of crystal-
lization varies depending on the blend of ISO, the
humidity, and the temperature.
Changing Materials
NOTICE
Partially cured ISO will reduce performance and the
life of all wetted parts.
• Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere.
Never store ISO in an open container.
• Keep the ISO pump wet cup or reservoir (if
installed) filled with appropriate lubricant. The
lubricant creates a barrier between the ISO and
the atmosphere.
• Use only moisture-proof hoses compatible with
ISO.
• Never use reclaimed solvents, which may
contain moisture. Always keep solvent
containers closed when not in use.
• Always lubricate threaded parts with an
appropriate lubricant when reassembling.
NOTICE
Changing the material types used in your equipment
requires special attention to avoid equipment damage
and downtime.
• When changing materials, flush the equipment
multiple times to ensure it is thoroughly clean.
• Always clean the fluid inlet strainers after
flushing.
• Check with your material manufacturer for
chemical compatibility.
• When changing between epoxies and urethanes
or polyureas, disassemble and clean all fluid
components and change hoses. Epoxies often
have amines on the B (hardener) side. Polyureas
often have aminies on the A (resin) side.

Important Acid Catalyst Information
10 3A0868L
Important Acid Catalyst Information
The 2KE Plural Component Proportioner is designed for acid catalysts (“acid”) currently used in two-component,
wood-finishing materials. Current acids in use (with pH levels as low as 1) are more corrosive than earlier acids.
More corrosion-resistant wetted materials of construction are required, and must be used without substitution, to
withstand the increased corrosive properties of these acids.
Acid Catalyst Conditions
Moisture Sensitivity of Acid
Catalysts
Acid catalysts can be sensitive to atmospheric moisture
and other contaminants. It is recommended the catalyst
pump and valve seal areas exposed to atmosphere are
flooded with ISO oil, TSL, or other compatible material
to prevent acid build-up and premature seal damage
and failure.
Acid is flammable, and spraying or dispensing acid creates potentially harmful mists, vapors, and atomized
particulates. To help prevent fire and explosion and serious injury:
• Read and understand the fluid manufacturer’s warnings and Safety Data Sheet (SDS) to know specific
hazards and precautions related to the acid.
• Use only genuine, manufacturer’s recommended acid-compatible parts in the catalyst system (hoses,
fittings, etc). A reaction may occur between any substituted parts and the acid.
• To prevent inhalation of acid mists, vapors, and atomized particulates, everyone in the work area must
wear appropriate respiratory protection. Always wear a properly fitting respirator, which may include a
supplied-air respirator. Ventilate the work area according to instructions in the acid manufacturer’s SDS.
• Avoid all skin contact with acid. Everyone in the work area must wear chemically impermeable gloves,
protective clothing, foot coverings, aprons, and face shields as recommended by the acid manufacturer
and local regulatory authority. Follow all fluid manufacturer recommendations, including those regarding
handling of contaminated clothing. Wash hands and face before eating or drinking.
• Regularly inspect equipment for potential leaks and remove spills promptly and completely to avoid direct
contact or inhalation of the acid and its vapors.
• Keep acid away from heat, sparks, and open flames. Do not smoke in the work area. Eliminate all ignition
sources.
• Store acid in the original container in a cool, dry, and well-ventilated area away from direct sunlight and
away from other chemicals in accordance with acid manufacturer’s recommendations. To avoid corrosion
of containers, do not store acid in substitute containers. Reseal the original container to prevent vapors
from contaminating the storage space and surrounding facility.
NOTICE
Acid build-up will damage the valve seals and reduce
the performance and life of the catalyst pump. To pre-
vent exposing acid to moisture:
• Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere.
Never store acids in an open container.
• Keep the catalyst pump and the valve seals filled
with the appropriate lubricant. The lubricant
creates a barrier between the acid and the
atmosphere.
• Use only moisture-proof hoses compatible with
acids.
• Always lubricate threaded parts with an
appropriate lubricant when reassembling.

Glossary of Terms
3A0868L 11
Glossary of Terms
Dose Size - the amount of resin (A) and catalyst (B) that
is dispensed into an integrator.
Dose Time Alarm - the amount of time that is allowed
for a dose to occur before an alarm occurs.
Dynamic Dosing - Component A dispenses constantly.
Component B dispenses intermittently in the necessary
volume to attain the mix ratio.
Grand Total - a non-resettable value that shows the
total amount of material dispensed through the system.
Intrinsically Safe (IS) - refers to the ability to locate cer-
tain components in a hazardous location.
Idle - if the gun is not triggered for 2 minutes the system
enters Idle mode. Trigger the gun to resume operation.
Batch Total - a resettable value that shows the amount
of material dispensed through the system for one batch.
A batch is complete when the user resets the batch
counter to zero.
Mix - when cross-linking of the resin (A) and catalyst (B)
occurs.
Overdose Alarm - when either the resin (A) or catalyst
(B) component dispenses too much material and the
system cannot compensate for the additional material.
Potlife Time - the amount of time before a material
becomes unsprayable.
Potlife Volume - the amount of material that is required
to move through the mix manifold, hose, and applicator
before the potlife timer is reset.
Pump Calibration Factor - the amount of material dis-
pensed per inch of pump travel.
Purge - when all mixed material is flushed from the sys-
tem.
Purge Time - the amount of time required to flush all
mixed material from the system.
Ratio Tolerance - the settable percent of acceptable
variance that the system will allow before a ratio alarm
occurs.
Standby - refers to the status of the system.

Overview
12 3A0868L
Overview
Usage
The ProMix 2KE is an electronic two-component paint
proportioner. It can blend most two-component paints. It
is not for use with quick-setting paints (those with a pot
life of less than 5 minutes).
• Has dynamic dosing capabilities. It dispenses mate-
rial A, monitors fluid flow, and dispenses material B
in doses to cause the mixture to stay on ratio.
• Can proportion at ratios from 0.1:1 to 30.0:1.
• Will display the last 50 errors with date, time, and
event. The optional USB upgrade kit will log 500
errors and up to 2000 jobs.
• For systems with one gun, an optional Gun Flush
Box provides an automated flushing system for a
manual spray gun.
Component Identification and Definition
Installation
General Information
• Reference numbers and letters in parentheses in
the text refer to numbers and letters in the illustra-
tions.
• Be sure all accessories are adequately sized and
pressure-rated to meet system requirements.
• To protect the Display Module screens from paints
and solvents, clear-plastic protective shields are
available in packs of 10 (Part No. 24G821). Clean
the screens with a dry cloth if necessary.
Component Description
Control Box • Advanced Fluid Control Module
• Power supply or alternator
• Solenoid valves
• Air flow switch(es)
• Optional USB Module
• Audible alarm
• Optional pressure switch for gun flush box
Fluid Module • Mix manifold, which includes the fluid integrator and static mixer.
• Color/catalyst valve stacks, includes pneumatically operated dose valves for material A
and B, as well as solvent valves.
• Pumps
Display Module Used to set up, display, operate, and monitor the system. Used for daily painting functions
including choosing recipes, reading/clearing errors, and placing the system in Spray,
Standby, or Purge mode.

Installation
3A0868L 13
Intrinsically Safe Installation Requirements
1. The installation must meet the requirements of the
National Electric Code, NFPA 70, Article 504 Resp.,
Article 505, and ANSI/ISA 12.06.01.
2. Multiple earthing of components is allowed only if
high integrity equipotential system realized between
the points of bonding.
3. For ATEX, install per EN 60079-14 and applicable
local and national codes.
Do not substitute or modify system components as
this may impair intrinsic safety. For installation,
maintenance, or operation instructions, read
instruction manuals. Do not install equipment
approved only for non-hazardous location in a
hazardous location. See the identification label for
the intrinsic safety rating for your model.
FIG. 1. Hazardous Location Installation
"A" REED
SWITCH
FLUID
CONTROL
MODULE
USB MODULE
USER INTERFACE
MODULE
ALTERNATOR
MODULE
10' CAN CABLE
2' CAN CABLE
20" CAN CABLE
18 PSI
1.5 FCM
(MIN)
"B" REED
SWITCH
"B" LINEAR
SENSOR
"A" LINEAR
SENSOR
"A" PRESSURE
TRANSDUCER
"B" PRESSURE
TRANSDUCER
LINEAR SENSOR/
REED SWITCH CABLE
LINEAR SENSOR/
REED SWITCH CABLE
50' OPTION
Hazardous (Classified) Locations
Class 1, Div 1, Group D, T3 (US and Canada)
Class 1, Zone 1, Group IIA, T3 (ATEX only)

Installation
14 3A0868L
FIG. 2. Non-Hazardous Location Installation
FLUID
CONTROL
MODULE
USB MODULE
USER INTERFACE
MODULE
POWER
SUPPLY
10' CAN CABLE
20" CAN CABLE
CAN CABLE
LINE POWER
FILTER
"A" REED
SWITCH
"B" REED
SWITCH
"B" LINEAR
SENSOR
"A" LINEAR
SENSOR
"A" PRESSURE
TRANSDUCER
"B" PRESSURE
TRANSDUCER
LINEAR SENSOR/
REED SWITCH CABLE
LINEAR SENSOR/
REED SWITCH CABLE
50' OPTION
Non-Hazardous Locations

Installation
3A0868L 15
Display Module
1. Use the screws provided
to mount the bracket for
the Display Module on the
front of the Control Box or
on the wall, as you prefer.
2. Snap the Display Module
into the bracket.
3. Connect one end of the CAN
cable (provided) to J6 on the
Display Module (either port).
4. The other end of the cable
comes from the factory connected as shown,
depending on the configuration of your system:
•Wall Power Systems
with USB Module:
Connect the CAN cable
to P3 on the USB Mod-
ule.
•Wall Power Systems
without USB Module:
Connect CAN cable to
J8 on the Advanced
Fluid Control Module.
•Alternator Power Sys-
tems (with or without
USB Module): Connect
CAN cable to J3 on the
alternator.
Air Supply
Requirements
•Compressed air supply pressure: 75-100 psi
(517-700 kPa, 5.2-7 bar).
•Air hoses: use grounded hoses that are correctly
sized for your system.
•Air regulator and bleed-type shutoff valve:
include in each air line to fluid supply equipment.
Install an additional shutoff valve upstream of all air
line accessories to isolate them for servicing.
•Air line filter: a 10 micron or better air filter is rec-
ommended to filter oil and water out of the air supply
and help avoid paint contamination and clogged
solenoids.
ti16672a
J6
ti16604a
P3
ti16580a
J8
ti16579a
J3
ti16456a
Trapped air can cause a pump or dispense valve to
cycle unexpectedly, which could result in serious
injury from splashing or moving parts. Use bleed-type
shutoff valves.
If using a Graco electrostatic PRO™Gun, a shutoff
valve must be installed in the gun air line to shutoff
the atomizing and turbine air to the gun. Contact your
Graco distributor for information on air shutoff valves
for electrostatic applications.

Installation
16 3A0868L
Air Connections
See the System Pneumatic Schematic on page 68
(hazardous location) or page 69 (non-hazardous loca-
tion).
1. Tighten all ProMix 2KE system air and fluid line con-
nections as they may have loosened during ship-
ment.
2. Connect the main air supply line to the main air inlet.
This air line supplies the solenoids, valves, and
pumps. See FIG. 3.
3. For each gun in the system, connect a separate
clean air supply line to the air inlet of the air flow
switch. This air supplies gun atomizing air. The air
flow switch detects air flow to the gun and signals
the controller when the gun is being triggered.
Fluid Supply
Requirements
ProMix 2KE models are available to operate airless
(high pressure, 50 cc pumps only), air spray, or
air-assisted systems with a capacity of up to 3800
cc/min.
• Fluid supply pressure tanks, feed pumps, or circu-
lating systems can be used.
• Materials can be transferred from their original con-
tainers or from a central paint recirculating line.
NOTE: The fluid supply must be free of pressure spikes,
which are commonly caused by pump stroke change-
over. If necessary, install pressure regulators or a surge
tank on the ProMix 2KE fluid inlets to reduce pulsation.
Contact your Graco distributor for additional information.
Fluid Connections
1. See FIG. 5, page 17. Connect the solvent supply line
to the 1/4 npt(f) solvent valve inlets (SVA and SVB).
2. Connect the component A supply line(s) to the com-
ponent A dose valve inlet (DVA).
NOTE: Paint Recirculating System Only
• If you are recirculating paint, use the standard inlet
on Dose Valve A or Dose Valve B. Remove the plug
directly opposite it on the dose valve for the recircu-
lation outlet. See FIG. 5.
3. Connect the component B line to the component B
dose valve inlet (DVB).
4. Connect the gun fluid supply line between the mix
manifold (MM) outlet and the gun fluid inlet.
FIG. 3. Air Supply Inlet
FIG. 4. Connect atomizing air
Main Air
Inlet
ti15708a
Atomizing
air inlets
Atomizing
air outlets
ti15709a
Solenoid
air inlet
• Do not exceed the pressure rating of the lowest
rated component. See the identification label.
• To reduce the risk of injury, including fluid
injection, you must install a shutoff valve between
each fluid supply line and the mix manifold. Use
the valves to shut off fluid during maintenance
and service.

Installation
3A0868L 17
FIG. 5. Fluid Connections
ti15697a
Key:
PA Component A Pump
DVA Component A Dose Valve
SVA Solvent Valve A
PB Component B Pump
DVB Component B Dose Valve
SVB Solvent Valve B
MM Mix Manifold
SVB
DVB
SVA
DVA
MM
PA PB
Remove plug;
recirculation outlet.
Solvent inlet
Component
Inlet
ti16754a
ti16755a

Installation
18 3A0868L
Tubing Chart and Diagrams
* Used only on IS models.
Type Color Description Starting Point Ending Point Tube OD in. (mm)
Air Green Solvent Valve A On 1G 1G 0.156 (4.0)
Air Green Dose Valve A On 2G 2G 0.156 (4.0)
Air Green Solvent Valve B On 3G 3G 0.156 (4.0)
Air Green Dose Valve B On 4G 4G 0.156 (4.0)
Air Red Solvent Valve A Off 1R 1R 0.156 (4.0)
Air Red Dose Valve A Off 2R 2R 0.156 (4.0)
Air Red Solvent Valve B Off 3R 3R 0.156 (4.0)
Air Red Dose Valve B Off 4R 4R 0.156 (4.0)
Air Natural Solenoid Air A1 A1 0.25 (6.3)
Air Natural Air Regulator to Pump B A2 A2 0.375 (9.5)
Air Natural Air Regulator to Pump A A3 A3 0.375 (9.5)
Fluid ---- Pump B to Valve Stack B A4 A4 -----
Fluid ---- Pump A to Valve Stack A A5 A5 -----
Fluid ---- Valve Stack A to Mix Manifold A6 A6 -----
Fluid ---- Valve Stack B to Mix Manifold A7 A7 -----
Air Natural Air Regulator to Alternator* A8 A8 0.375 (9.5)
Air Black Alternator Air Exhaust* A9 A9 0.5 (12.7)
GFB1-A
GFB1-C
GFB1-S
GFB1-S
ATOM-1
1R 2R 3R 4R
1G
2G
3G 4G GFB1-C
A8*
A9*
* IS Models
ti16771a
ti13863a
ti13861a
ti16770a
GFB1-P
(Pressurized air line)

Installation
3A0868L 19
GFB1-A
ATOM-1
ATOM-2
A1
A4
A5
B Side
A Side
A4
A5
A Side B Side
3R
3G
4G
4R
1R
1G
2G
2R
A6 A7
ti16765a ti16766a
ti16764a
A3
A2 A3
ti16772a
B Side A Side
See Manual 312784 for full
setup instructions for a gun
flush box.

Installation
20 3A0868L
Electrical
Power Connection (non-IS units only)
Enclose all cables routed in the spray booth and high
traffic areas in conduit to prevent damage from paint,
solvent, and traffic.
The ProMix 2KE operates with 85-250 VAC, 50/60 Hz
input power, with a maximum of 2 amp current draw.
The power supply circuit must be protected with a 15
amp maximum circuit breaker.
Not included with system:
• Power supply cord compatible to your local power
configuration. Wire gauge size must be 8-14 AWG.
• The input power access port is 22.4 mm (0.88 in.) in
diameter. It accepts a bulkhead strain relief fitting or
conduit.
1. Verify that electrical power at the main panel is shut
off. Open Control Box cover.
2. Connect electrical cord to the terminal block as
shown in FIG. 6.
3. Close the Control Box. Restore power.
4. Follow instructions in Grounding, page 21.
All electrical wiring must be completed by a qualified
electrician and comply with all local codes and
regulations.
FIG. 6. Control Box Electrical Connection
FIG. 7. Electrical Schematic
ti16391a
Ground
Neutral
Line
LINE POWER
FILTER
POWER
SUPPLY
TERMINAL
BLOCK
SWITCH
ROCKER
1A
1
2A
2
LNGRND
LGRND N
LN