Graco Inc. 249320 Operation

Operation

311003B

Plural Component Proportioner, with carbon steel UltraMix™ Pump, cart, and remote mix manifold

250 psi (1.7 MPa, 17 bar) Maximum Fluid Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

See page 3 for model information, including maximum working pressure and approvals.

Model 249320 Clear Coat System Shown

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

TI6384a

Contents

Manual Conventions

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2

ProMix Easy Models . . . . . . . . . . . . . . . . . . . . . . . . 3

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 14

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Priming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Pump Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Manual Conventions

WARNING

Hazard Symbol

WARNING: a potentially hazardous situation which, if

not avoided, could result in death or serious injury.

Warnings in the instructions usually include a symbol indicating the hazard. Read the general Warnings section for additional safety information.

Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Batch Dispense or Ratio Check . . . . . . . . . . . . . . 22

Pot Life Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Recirculation Setting . . . . . . . . . . . . . . . . . . . . . . . 24

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Recalibrate System . . . . . . . . . . . . . . . . . . . . . . . . 26

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . 30

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 32

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 32

CAUTION

CAUTION: a potentially hazardous situation which, if

not avoided, may result in property damage or destruction of equipment.

Note

Additional helpful information.

2 311003B

ProMix Easy Models

Approved for Hazardous Location

Class I, Div 1, Group D (North America); Class I, Zones 1 and 2 (Europe)

ProMix Easy Models

ProMix

Easy

Part No. Series Description and Approvals

249320

Clear coat system; cart mount, UltraMix carbon steel pumps, and remote mix manifold

249321

Primer system; cart mount, UltraMix carbon steel pumps, and remote mix manifold

Conforms to

FM std 3600 & 3610

for use in

Class I Div 1

Group D T3

Hazardous Locations

ISSeP 04 ATEX 020X

EEx ib IIA T3

Related Manuals

Manual Description

311004 ProMix Easy with Remote Mix Manifold,

Repair-Parts Manual

Maximum

Working Pressure

psi (MPa, bar)

250 (1.7, 17)

CAN/CSA

22.2 No. 157-92 & No. 1010.1-92

Manual Description

310675 AC Power Supply

310678 TSL Pump Kits

310655 Dispense Valve

310662 Displacement Pumps

310671 UltraMix Pumps

310700 Gun Air Regulator Kits

309623 Data Download Kits

308034 Turbine Alternator Repair Kit

310673 Circulation Kits

311003B 3

Warnings

The following general warnings are related to the safe setup, use, grounding, maintenance and repair of this equipment. Additional more specific warnings may be found throughout the text 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 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 fire extinguisher in the work area.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.

• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• 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.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not alter or modify equipment.

• For professional use only.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or overbend hoses or use hoses to pull equipment.

• Comply with all applicable safety regulations.

4 311003B

Warnings

WARNING

MOVING PARTS HAZARD

Moving parts can pinch 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 in this manual. Disconnect power or air supply.

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 swallowed.

• Read MSDS’s to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

311003B 5

Overview

Usage

The ProMix Easy can mix most two-component paints. It is not for use with “quick-setting” paints (those with a pot life of less than 5 minutes) without modification. Contact your distributor for information.

The ProMix Easy is operated with the User Interface, Air Controls and Fluid Controls, described below and on page 7. Refer to F

User Interface

The User Interface has 6 main interfaces.

1. Function Knob to select desired function:

Icon Function

IG. 1 and FIG. 3.

Spray: proportion and spray material.

Run A: operate A independent of B (prim-

ing, flushing) for 12 cycles.

Run B: operate B independent of A (priming, flushing) for 12 cycles.

Batch Dispense: dispense proportioned amounts of A and B (1 pint/500 cc).

Pump Test: dispense predetermined amount of A and B to verify pump operation.

Recirculation: optional; requires 248652 Circulation Kit, see page 24.

Pot Life Timer: display potlife time left.

Pressure Relief/Park: allows pressure relief

and runs pumps to the bottom of stroke. See page 14.

Overview

3. Stop button to terminate functions.

4. Key switch to change ratio, pot life time, pot life vol-

ume, or calibration data.

5. Display (five digits) to view:

• Software revision level at startup

•Ratio

• Pot life time and reset volume

• Alarm codes

• Sensor calibration factor.

6. Data port allows for connection to a PC serial port

to download volume totalizer, operation, ratio setting, and error alarm data.

WAR NING

To avoid impairing intrinsic safety and reduce the risk of fire and explosion, the PC must be in a non-hazardous location and a safety barrier must be installed between the PC and ProMix Easy unit. See data download kit manual 309623.

• System totalizers count in Spray and Batch Dispense functions only.

• A and B Indicators (LT) show which dispense valve(s) is open.

2. Start button to initiate functions.

6 311003B

IG. 1. User Interface

You must recalibrate the circuit board whenever the main circuit board, software, or sensor is replaced, or when Alarm 8 occurs. See Recalibrate System, page 26.

Overview

Air Controls

See FIG. 3.

• Bleed-type main air shutoff valve (C), shuts off all air to ProMix Easy (including controller power).

• Supply air pressure gauge (D), monitors air pressure to ProMix Easy.

A minimum air pressure supply of 70 psi (483 kPa,

4.8 bar) must be maintained for the ProMix Easy to operate properly.

• Pump air pressure regulator (E) with gauge (F), adjusts and monitors pump air pressure.

• Gun air regulator (P) and gauge (shipped loose), adjusts and monitors gun air pressure.

Solenoid Module

There are two solenoids inside the pneumatic control box, one to actuate dispense valve A, one to actuate dispense valve B.

Fluid Supply Containers

Clear coat systems include three feed pots (H, J, L) for components A

1, A2, and B.

Primer systems include two feed pots (H, L) for components A and B.

Fluid Control Valves

• Fluid inlet valve manifold (M, clear coat systems only) allows component A and/or A

2 FAST CLEAR (blue) to enter component A

pump.

• Dispense valves (DA, DB) dispense the correct dose of component A and component B to the remote mix manifold. Solenoids A and B turn the dispense valves ON and OFF. See F

• Sampling valves (SA, SB), to batch dispense or test pumps. See F

IG. 2.

1 SLOW CLEAR (green)

IG. 2.

TI6356a

• Fluid outlet valves allow components A and B to enter the fluid hoses. See F

Clear coat systems use a fluid outlet valve manifold (N) on the A side: A

CLEAR

TI4808a

Clear Coat System Primer System

A1 A1 + A2

TI6428a

FIG. 2. Dispense Valves, Sampling Valves, and Fluid Outlet Valves

IG. 2.

1 SLOW CLEAR (green), A2 FAST

(blue), or A1+A2 MEDIUM CLEAR (green/blue).

TI6510a

311003B 7

Overview

G K

TI6607a

TI6384a

FIG. 3. ProMix Easy Proportioner, Major Components (Clear Coat System Shown)

Key for F

A Component A Fluid Hoses B Component B Fluid Hose (braided) C Bleed-Type Main Air Shutoff Valve D Air Supply Pressure Gauge E Pump Air Regulator F Pump Air Pressure Gauge G Component A Pump H Component A J Component A2 Feed Tank (clear coat systems only) K Component B Pump L Component B Feed Tank

8 311003B

IG. 3

1 Feed Tank

M Fluid Inlet Valves (clear coat systems only) N Fluid Outlet Valve Manifold (clear coat systems only) P Gun Air Pressure Regulator (not shown) R Gun Air Supply Hose S Solvent Supply Hose T Remote Mix Manifold U Solvent Pump V ProMix Easy Plural Component Proportioner W Fluid Whip Hose/Static Mixer X Air Spray Gun (not included with system) Y Ground Wire Z User Interface (see page 6)

Solvent Control Valves

Solvent pump (U) pumps solvent from a user-supplied solvent container.

• Solvent pump air valve (SV) turns on the solvent pump.

• A and B solvent valves (VA, VB) allow flushing of sampling valves A and B.

• Solvent valves allow flushing of the mix manifold, whip hose, and gun. Valve S1 is at the solvent pump outlet. Valve S2 is at the mix manifold.

Overview

SVVA

TI6425a

On clear coat systems, valves S1, S2, and B2 must all be open to flush the mix manifold. See F

IG. 5.

IG. 4. Solvent Pump and Valves

311003B 9

Overview

Hose Bundle/Mix Manifold

The hose bundle includes fluid hoses, solvent hose, air hose, mix manifold, and whip hose/static mixer. Hoses are encased in a protective cover.

Clear Coat Systems

See FIG. 5. Clear coat system hose bundle includes a gun air supply hose (R), solvent hose (S), and four fluid hoses. The component B hose is steel braid. The three nylon fluid hoses are for components A

The component A and component B hoses have fluid shutoff valves upstream of the mix manifold. These valves are all open when spraying. Close these valves at Shutdown, page 25.

Solvent valve (S2) is always closed except when flushing (see Mix Manifold Flushing, page 16). (Valve B2 must also be open when flushing to allow solvent into the mix manifold.) Check valves (CB) are provided to prevent cross-contamination of the solvent line and fluid lines.

1, A2, and A1+A2.

Primer Systems

See FIG. 6. Primer system hose bundle includes a gun air supply hose (R), solvent hose (S), and component A and B hoses. The component B hose is steel braid. The component A hose is nylon.

The component A and component B hoses have fluid shutoff valves upstream of the mix manifold. These valves are both open when spraying. Close these valves at Shutdown, page 25.

Solvent valve (S2) is always closed except when flushing (see Mix Manifold Flushing, page 16). Check valves (CB) are provided to prevent cross-contamination of the solvent line and fluid lines.

IG. 5. Mix Manifold Valves, Clear Coat Systems

TI6424a

IG. 6. Mix Manifold Valves, Primer Systems

TI6603a

Remote Mix Manifold

• Components A and B are pre-mixed in the mix manifold (T), then uniformly blended in the whip hose/static mixer (W) before being sprayed.

• Use the built-in fluid regulator (FR) to adjust fluid pressure to the spray gun. Regulator must be open to permit flow.

TI6606a

10 311003B

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