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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
PRO
Pulse
Electronic Volumetric Flow Meter
For use with Plural Component Precision Mixing Systems
This meter is designed to be used in a Class I, Group D hazardous environment
2800 psi (19.6 MPa, 196 bar) Maximum Working Fluid Pressure
50 psi (350 kPa, 3.5 bar) Maximum Working AirPressure
Part No. 235–402, Series A
Flow Meter with 0.1 cc per tooth fluid volume flow
Model 235–403, Series A
Flow Meter with 0.4 cc per tooth fluid volume flow
NOTE: See the Accessories section to order Fiber-
Optic Cables and to order the Fluid Manifold.
U.S. and Foreign Patents Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1993, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308–287
Supersedes Rev. B
First choice when
quality counts.
Rev. C
and PCN C
01847
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Summary of Contents for Graco 308287
- Page 1 INSTRUCTIONS-PARTS LIST This manual contains important warnings and information. READ AND KEEP FOR REFERENCE. INSTRUCTIONS Pulse Electronic Volumetric Flow Meter For use with Plural Component Precision Mixing Systems This meter is designed to be used in a Class I, Group D hazardous environment 2800 psi (19.6 MPa, 196 bar) Maximum Working Fluid Pressure 50 psi (350 kPa, 3.5 bar) Maximum Working AirPressure Part No.
- Page 2 Table of Contents Warnings ........Installation .
- Page 3 EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result INSTRUCTIONS in a serious injury. This equipment is for professional use only. Read all the instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose.
- Page 4 Air Supply Line Bleed-Type Air Supply Line Shut-off Valve (required) Air Line Filter Air Line Lubricator Air Line Regulator Pump G Fiber Optic Cable Flow Meter Fluid Supply Line Fluid Supply Main Power Switch M Pendant Pump Grounding Wire (required) Fluid Manifold 115V 60 Hz Electrical Supply Controller...
- Page 5 Tubing, 1/4” OD Nut (nylon) Ferrule, back (nylon) Ferrule, front (nylon) Air Inlet Fitting Electrical Chassis G Fiber Optic Cables Gear Housing Assy. Nut (aluminum) Ferrule, back (aluminum) Ferrule, front (aluminum) Fig. 1 Check the Electrical Grounding WARNING Proper electrical grounding of your system is essential when used with flammable or combustible liquids.
- Page 6 Pressure Relief Procedure WARNING INJECTION HAZARD Fluid under high pressure can be in- jected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you: are instructed to relieve the pressure, stop operating,...
- Page 7 CAUTION Do not immerse the meter in solvent. Solvent could damage the meter’s electrical components. 1. Clean the fluid and air line filters daily. 2. Clean the outside of the meter with a soft cloth dampened in a compatible solvent as needed. 3.
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Page 8: Troubleshooting
WARNING Installing and servicing this equipment requires access to parts that may cause electric shock or other serious injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 6. - Page 9 WARNING Installing and servicing this equipment requires access to parts that may cause electric shock or other serious injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 6.
- Page 10 Replacing Worn Bearings A repair kit is available to service the bearings. An asterisk after the description or reference letter indi- cates a part included with the repair kit. See page 11 to order the proper kit for your meter model. CAUTION This is a close-tolerance device.
- Page 11 Removing Bearings Gear Assembly T* Bearing Tool V* Bearings and Spacers W Support É É É É É É É É É É É É Fig. 6 Bearing Repair Kit 223–276 For Meter Model 235–402, with 0.1 cc per tooth fluid volume flow Bearing Repair Kit 223–277 For Meter Model 235–403, with 0.4 cc per tooth fluid volume flow...
- Page 12 Part No. 235–402, Series A 0.1 cc per tooth fluid volume flow 308–287 Parts Model 235–402 only Model 235–403 only Part No. 235–403 with 0.4 cc per tooth fluid volume flow...
- Page 13 Part No. 235–402, Series A 0.1 cc per tooth fluid volume flow Part No. 235–403, Series A 0.4 cc per tooth fluid volume flow Part No. Description GEAR HOUSING ASSY; Ordering information below; Includes replaceable items 1a & 1b 111–073 .
- Page 14 Fiber Optic Cables Fiber Optic Cable Assembly For connection between the controller and flow meter. PART NO. LENGTH 224–690 6 ft (1.8 m) 224–691 15 ft (5 m) 224–692 25 ft (8 m) 224–693 36 ft (11 m) 224–694 50 ft (15 m) 224–695 75 ft (23 m) 224–696...
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Page 15: Technical Data
DIM. A DIM. C Category Maximum Working Fluid Pressure Maximum Working Air Pressure Fluid Pressure Operating Range Air Pressure Operating Range Air Inlet Maximum Fiber Optic Cable Length Wetted Parts Manual Change Summary This manual was revised to include the changes from PCN C. Dimensions Part No. - Page 16 The Graco Warranty Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special extended or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.