Table of Contents
Advertisement
Quick Links
INSTRUCTIONS-PARTS LIST
Parts
Contents
INSTRUCTIONS
ProMixt Proportioning System
For proportional mixing of plural component coatings
See page 3 for the model numbers and descriptions.
Recognized Component
D
Intrinsically Safe for Hazardous Locations
Class I; Division 1; Group D*
* If an external power supply is connected to the control, the
control is no longer intrinsically safe and the control, as well
as the power supply, must not be operated in hazardous loca-
tions.
If a printer is connected to the control, Printer Barrier Kit
240652 must be installed to maintain intrinsic safety. If the
printer is installed without the Printer Barrier Kit, the control is
no longer intrinsically safe and the control and printer must
not be installed or operated in hazardous locations.
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Conforms to ANSI/UL
standard 2279
Certified to CAN/CSA
22.2 No. E79–11–95
EExia II A T4
98D.123384
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1997, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
http://www.graco.com
308740
Supersedes B
First choice when
quality counts.t
Rev. C
7465A
Advertisement
Table of Contents
Related Manuals for Graco ProMix 239738
Summary of Contents for Graco ProMix 239738
- Page 1 GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 http://www.graco.com ECOPYRIGHT 1997, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
-
Page 2: Table Of Contents
........Graco Standard Warranty . -
Page 3: Promix Models
ProMix Models WARNING COMPONENT RUPTURE HAZARD To avoid component rupture and serious injury, including injection, do not exceed the maximum working pressure of the system components. The maximum working fluid pressures below are based on the component A and B pump outputs at 100 psi incoming air pressure. -
Page 4: Warning
WARNING INJECTION HAZARD Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause serious injury. D Fluid injected into the skin might look like just a cut, but it is a serious injury. - Page 5 D This equipment is for professional use only. D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor. D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
-
Page 6: Promix Proportioner Overview
ProMix Proportioner Overview 7475A ProMix with solvent pump shown (Part No. 239737 or 239739) 7466A Fig. 1 ProMix Fluid Section 11 Air Regulator Mix Manifold 15 Air Filter Keypad 16 Air Shutoff Valve LED Display 18 Fluid Regulator Operator Station 28 Fluid Drain Valve Plural Component Supply Pump 43 Fluid Filter (one out of three pointed out) -
Page 7: Installation
Installation NOTE: 3. Connect the ProMix control (69) to the fluid section (C). See Fig. 2. D Reference numbers and letters in parentheses in this text refer to the numbers and letters in the a. Place the brackets (6) into the slots in the illustrations. - Page 8 Installation 4. Connect the supply lines from the fluid section to 7. Screw the second shutoff valve (16 ) into the the ProMix control connectors. See Fig. 3. Control/Gun air inlet. NOTE: This air inlet is for the air supply to the WARNING solenoids and air driven power supply and to the spray gun.
- Page 9 Connect the component B line to the compo- an automatic shutoff valve must be nent B pump. properly installed in the gun air line if using a Graco electrostatic PROt Gun. c. Connect the solvent line to the solvent pump or other solvent supply.
- Page 10 Installation WARNING Gun Air Outlet Printer Cable Connector Air Signal Outlet (optional) FIRE AND EXPLOSION HAZARD External Power Connector The ProMix control is intrinsically safe Alarm Air Outlet (optional) when used without any external electri- Operator Station Connec- cal components connected to it. If an Manifold Static Mixer Outlet external power supply or printer is connected to the control, the control is...
- Page 11 Installation 15. Ground the system. See Fig. 8. h. Maintain grounding continuity when purging or relieving pressure. Follow the instructions in your separate gun manual for safely grounding WARNING your gun while purging. 16. Check grounding continuity. FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Have a qualified electrician check the resistance To reduce the risk of fire, explosion, or...
-
Page 12: Operator Controls
Operator Controls Two devices provide operator interface; they are the Report Operator Station, located in the spray booth, and the Keypad, located on the control. Standby The operator station has four functions, represented by Purge four icons on its cover. See Fig. 10. See the control manual 308783 for additional informa- tion on using the Operator Station and the Keypad for setup and operation. -
Page 13: Startup
Startup 4. Turn the air supply on and CAUTION open the air shutoff valves The ProMix pot life timer will not function properly when used with multiple guns that are operating A diagnostic test will run simultaneously. To avoid having mixed material set in and the last known Target the equipment, carefully monitor the pot life by some Ratio will display on the... - Page 14 Startup 9. Check that the component pump air regulator NOTE: If the flow meters overrun because of air in the system, operation will stop. See control manual ) is properly set for your application. Do not 308783 for alarm troubleshooting information. exceed the 100 psi (0.7 MPa, 7 bar) maximum working air pressure of the pump.
- Page 15 Startup Release the component A valve key to c. Hold down the solvent valve key to open close the valve. the solvent valve. g. Hold down the component B d. Trigger the gun into a grounded waste con- valve key to open the component tainer until solvent flows from the nozzle.
-
Page 16: Reporting
Startup 15. Spray d. If the fluid output is too low, increase the air pressure to the component supply pumps or increase the regulated fluid pressure. If the fluid output is too high, reduce the air a. Open the gun air shutoff valve. pressure, close the manifold dispense valves further, or adjust the fluid pressure regulator. -
Page 17: Purging
FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD To reduce the risk of fire, explosion, or electric shock, the air to the gun must be shut off on a Graco PROt electrostatic spray gun to ensure the electrostatic power is not on when purging. 7477A * A gun is considered high pressure when its maximum working pressure is 900 psi [6.2 MPa, 62 bar] or greater. -
Page 18: Purging The Fluid Supply
9. Turn the operator switch to standby. To reduce the risk of fire, explosion, or electric shock, the air to the gun must be shut off on a Graco PROt electrostatic spray gun to ensure the electrostatic power is not on when purging. - Page 19 Purging 11. Trigger the gun into a grounded waste container 6. Turn the air supply on and until the component A fluid lines are clean. open the air shutoff valves , 16 Ä Ä Ä Ä Ä Ä 7474A 7. Touch the token to the setup contacts (AA). Num- ber 1 appears on the display, indicating the control is at level 1 setup.
-
Page 20: Ratio Check
Ratio Check Check the ratio at least once per month, as part of a 1. Make sure the operator switch is set regular maintenance routine, and anytime a flow meter at standby. is changed. WARNING PRESSURIZED EQUIPMENT HAZARD To avoid splashing fluid in the eyes when performing a ratio check or purging: 7475A D Wear eye protection. - Page 21 Ratio Check 6. Refer to the reference card. Hold down either the 10. Compare the amount on the display to the amount in the component A beaker. For maximum accu- flow meter A key or flow meter B key racy, use a gravimetric (mass) method to deter- two seconds.
- Page 22 Ratio Check 15. Always purge the ratio check valves after a g. Release the ratio valve purge key to close ratio check. the solvent valve. a. Make sure both component A and B fluid shutoff valves (W ) are still closed. 16.
-
Page 23: Service
Service Alarm Troubleshooting WARNING See the control manual 308783 for information on alarm troubleshooting. INJECTION HAZARD To reduce the risk of a serious injury, Instruction Manuals follow the Pressure Relief Procedure on page 12 before checking or servicing Additional instruction manuals are included with the the equipment. -
Page 24: Parts
Parts Part No. 239736 NOTE: See page 32 for loca- tion of hoses. 15 45 13 (Ref) 27 26 38 39 13 (Ref) 1 (Ref) Included with control. Used with Component B Pump only. 7681A 308740... - Page 25 Parts Part No. 239736 Ref. Part No. Description Qty. Includes two Presidentr 46:1 pumps 158491 NIPPLE; 1/2 npt 110225 VALVE, ball, vented; 1/2 npt Ref. Part No. Description Qty. 114107 SCREW, set, socket head; M6 x 1 x 12 mm 192476 FRAME 188089...
-
Page 26: Part No. 239737
Parts Part No. 239737 NOTE: See page 32 for loca- tion of hoses. 13 (Ref) 27 26 38 39 13 (Ref) 1 (Ref) Included with control. Used with Component B Pump only. 7680A 308740... - Page 27 Parts Part No. 239737 Ref. Part No. Description Qty. Includes two Presidentr 46:1 pumps and one Monarkr 23:1 pump 110918 WASHER, flat; M4 114182 SCREW, machine, hex flange head; M6 x 1 x 16 mm Ref. Part No. Description Qty. 114117 GAUGE, air pressure 239800...
-
Page 28: Part No. 239738
Parts Part No. 239738 NOTE: See page 32 for loca- tion of hoses. 15 45 13 (Ref) 27 26 38 39 13 (Ref) 1 (Ref) Included with control. Used with Component B Pump only. 7483A 308740... - Page 29 Parts Part No. 239738 Ref. Part No. Description Qty. Includes two Presidentr 30:1 pumps 158491 NIPPLE; 1/2 npt 110225 VALVE, ball, vented; 1/2 npt Ref. Part No. Description Qty. 114107 SCREW, set, socket head; M6 x 1 x 12 mm 192476 FRAME 188089...
-
Page 30: Part No. 239739
Parts Part No. 239739 NOTE: See page 32 for location of hoses. 13 (Ref) 27 26 38 39 13 (Ref) 1 (Ref) Included with control. Used with Component B Pump only. 7680A 308740... - Page 31 Parts Part No. 239739 Ref. Part No. Description Qty. Includes two Presidentr 30:1 pumps and one Monarkr 23:1 pump 110918 WASHER, flat; M4 114182 SCREW, machine, hex flange head; M6 x 1 x 16 mm Ref. Part No. Description Qty. 114117 GAUGE, air pressure 239800...
-
Page 32: Fluid Lines
Parts Fluid Lines ProMix with Monark solvent pump shown. Fluid hoses are thermoplastic; 3/8 npsm(f) x 3/8 npt(m) coupled; 7500 psi (51 MPa, 517 bar) maximum working pressure. See parts lists for part numbers. 7485A 308740... -
Page 33: Accessories
2000 hours of operation.To maintain no longer intrinsically safe and the intrinsic safety, only use this Graco kit to replace control, as well as the power supply and bearings and follow the service instructions provided printer, must not be operated in hazard- with the kit. -
Page 34: Dimensions
Dimensions 4.5 in. (114 mm) 50 in. (1270 mm) 51.75 in. (1315 mm) 34 in. (864 mm) 7484A 308740... -
Page 35: Technical Data
....74 dB(A) * Dependant on application. For more detailed information on viscosities, flow rates, or mixing ratios, consult your Graco repre- sentative. -
Page 36: Graco Standard Warranty
Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub- stitution of non–Graco component parts.