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INSTRUCTIONS-PARTS LIST
308–287
Rev. C
This manual contains important
Supersedes Rev. B
warnings and information.
First choice when
and PCN C
READ AND KEEP FOR REFERENCE.
quality counts.
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 N
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Table of Contents Symbols Warning Symbol Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 WARNING Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 This symbol alerts you to the possibility of serious Troubleshooting . . . . . . . . . . . . . . . . . . .
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WARNING 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. If you are uncertain about usage, call your Graco distributor. Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
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Installation L M R S G 2 AB CD E NON-HAZARDOUS AREA HAZARDOUS AREA H F N 1 P A B CD E J K KEY A Air Supply Line B Bleed-Type Air Supply Line Shut-off Valve (required) C Air Line Filter D Air Line Lubricator E Air Line Regulator F Pump G Fiber Optic Cable H Flow Meter J Fluid Supply Line K Fluid Supply L Main Power Switch M Pendant N Pump Grounding Wire (required) P Fluid Manifold R 115V 60 Hz Electrical Supply S Controller 01848 The PRO Pulse Volumetric Flow Meter is designed to The Typical Ins
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Installation KEY Fiber Optic A Tubing, 1/4” OD Sender 1 B Nut (nylon) Fiber Optic C Ferrule, back (nylon) Sender 2 F D Ferrule, front (nylon) E Air Inlet Fitting Power Indicator L F Electrical Chassis Light (Yellow) G Fiber Optic Cables K H Gear Housing Assy. J J Nut (aluminum) Flow Indicator K Ferrule, back (aluminum) Light (Green) L Ferrule, front (aluminum) E H D C G B A 01849 Fig. 1 Check the Electrical Grounding Electrical Chassis WARNING Proper electrical grounding of your system is esse
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Operation Pressure Relief Procedure System Operating Checklist Check the following list daily, before starting to operate the system, to help ensure you of safe, efficient opera- WARNING tion. INJECTION HAZARD Be sure all operators are properly trained and Fluid under high pressure can be in- qualified to safely operate your system. jected through the skin and cause serious injury. To reduce the risk of an Be sure all operators are trained how to properly injury from injection, splashing fl
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Maintenance Flushing the Meter CAUTION WARNING Do not immerse the meter in solvent. Solvent could damage the meter’s electrical components. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the 1. Clean the fluid and air line filters daily. Pressure Relief Procedure on page 6. 2. Clean the outside of the meter with a soft cloth 1. Relieve the pressure. dampened in a compatible solvent as needed. 2. Connect the fluid line to the solvent supply uni
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Troubleshooting Before servicing this equipment always make sure to WARNING relieve the pressure. 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. Problem Cause Solution I
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Service 2. Disconnect the 3-pin connector (J) from the square WARNING pins (H). Installing and servicing this equipment requires 3. Carefully pull the alternator (4) away from the top access to parts that may cause electric shock or housing. other serious injury if the work is not performed properly. Do not install or service this equipment 4. Using an ohmmeter, test the coil in the turbine unless you are trained and qualified. alternator. Measure the resistance between the two outer terminals o
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Service 3. Install the o-ring (M*), washers (K*), and gear Replacing Worn Bearings assemblies (L*). Be sure to install the gears on A repair kit is available to service the bearings. An their proper pegs. See Fig. 5. asterisk after the description or reference letter indi- cates a part included with the repair kit. See page 11 4. Press the gear housings together and secure them to order the proper kit for your meter model. with the four screws (N). Torque the screws to 7.5 ft-lbs (10 Nm). CAUT
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Service Removing Bearings Installing Bearings KEY KEY L Gear Assembly L Gear T* Bearing Tool P* Bearing *T V* Bearings and Spacers R* Inner Spacer W Support S* Outer Spacer T* Bearing Tool U Flat Surface *T R* P* V *S P* W L U L 0968 0969 Fig. 6 Fig. 7 Parts Bearing Repair Kit 223–276 K T P For Meter Model 235–402, with 0.1 cc per tooth fluid volume flow R S Bearing Repair Kit 223–277 P Gears not included For Meter Model 235–403, with Kit with 0.4 cc per
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Parts Part No. 235–402, Series A Part No. 235–403 0.1 cc per tooth fluid volume flow with 0.4 cc per tooth fluid volume flow 16 8 3 30 29 28 17 4a 4 5 Model 235–402 only 9 1 Model 2a 235–403 only 2 1a 6 1b 7 10 11 12 13 14 15 308–287
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Parts Ref Part No. 235–402, Series A No. Part No. Description Qty. 0.1 cc per tooth fluid volume flow 10 186–922 FITTING, valve 1 Part No. 235–403, Series A 11 107–107 WASHER, flow 1 0.4 cc per tooth fluid volume flow 12 186–921 BODY 1 13 101–435 BALL 1 Ref 14 108–046 SPRING 1 No. Part No. Description Qty. 15 186–923 RETAINER 1 1 GEAR HOUSING ASSY; Ordering 16* 187–125 LABEL, warning 1 information below; Includes 17* 187–124 LABEL, warning 1 replaceable items 1a & 1b 1 28 111–284 NUT, tube fitti
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Accessories Fiber Optic Cables Fluid Manifold Fiber Optic Cable Assembly Contact your local Graco representative to order For connection between the controller and flow meter. proper manifold. 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) 0186 0187 224–696 100 ft (30.5 m) Part No. 223–869 Part No. 624–708 Fiber Optic Cable Extender For connection between the flow meter and bulkhead Fluid Filter 223–160
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Dimensions Part No. Dim. A Dim. B Dim. C 235–402 4.25 in 4.10 in. 4.44 in. DIM. A (108 mm) (104 mm) (113 mm) 235–403 4.25 in 4.25 in. 4.50 in. (108 mm) (108 mm) (114 mm) DIM. B DIM. C 01847 Technical Data Category Data Maximum Working Fluid Pressure 2800 psi (19.6 MPa, 196 bar) Maximum Working Air Pressure 50 psi (350 kPa, 3.5 bar) Fluid Pressure Operating Range 0–2800 psi (0–19.6 MPa, 0–196 bar) Air Pressure Operating Range 20–50 psi (140–350 kPa, 1.4–3.5 bar) Air Inlet 1/4 inch OD tube Maximum
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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. This
