User manual GRACO VOLUMETRIC FLUID FLOW METER 308778M

[. . . ] Instructions-Parts Volumetric Fluid Flow Meter 308778M ENG For precise metering of plural component fluids or solvents (depending on model). For professional use only. See page 2 for model information, including maximum working pressure. Important Safety Instructions Read all warnings and instructions in this manual. S3000 Solvent Meter G3000 and G3000HR (Model 289813 with 90° Sensor Connector Shown) Recognized Component 9902471 Conforms to UL2279 Certified to CAN/CSA E79-0 CAN/CSA E79-11 TI11579a TI14674a II 1 G * 0359 EExia II A T3 ITS03ATEX21212X G250 and G250HR Intrinsically Safe for Hazardous Locations (Class I; Division 1; Group D) when used with an approved barrier only. * CE mark approvals only apply to meters used as part of Graco ProMix, ProMix 2KS, and PrecisionMix II Systems. TI13038a Models Contents Models . [. . . ] Never use the flow meter with an electrostatic gun isolation stand. CBA A B C +10-30 Vdc Supply (red) Ground (black) Signal Out (white) 7379A FIG. 2 6 308778M Operation Operation Pressure Relief Procedure Flow Volume Range The G3000 and G250 meters flow volume range is 0. 02-1. 0 gal. /min. Follow the Pressure Relief Procedure for your fluid system dispensing device. The S3000 solvent meter flow volume range is 0. 01-0. 5 gpm (38-1900 cc/min). NOTICE The flow meter gears and bearings can be damaged if they rotate at too high a speed. To prolong meter life, do not exceed the meter's maximum flow rate. Flow Meter Function This is a positive displacement, gear flow meter. The gear tooth is picked up by a sensor device, which produces an impulse for every gear tooth passing by. Checking the Meter Accuracy 1. To check the accuracy of the meter, turn your gun fan and atomizing air off, then trigger the fluid into a graduated cylinder; dispense at least 500 cc of fluid. Measure the volume of fluid in the beaker in cubic-centimeters (cc) and read the volume on the flow meter monitor. G3000 and G250: If the flow meter scale factor is not between 0. 112-0. 140 cc/pulse, follow the cleaning procedure on page 10, then recalibrate the flow meter. G3000HR and G250HR: If the flow meter scale factor is not between 0. 05-0. 07 cc/pulse, follow the cleaning procedure on page 10, then recalibrate the flow meter. Air purges do not provide the lubrication the meter gears require. Residue Build-up on the Meter Gears Residue build-up may cause the meter gears to bind or stop rotating, which decreases the meter accuracy and makes meter recalibration necessary. The frequency that your meter requires cleaning depends on the type of fluid being used. Excessive residue build-up usually means that you are using improper cleaning solvents and/or cleaning sequences or processes. · Check the meter routinely to develop the correct cleaning schedule. Use the proper cleaning solvent for the fluid being metered. · 308778M 9 Maintenance Cleaning or Servicing the Meter Chamber NOTICE Clean and service the meter at a clean workbench. Use only lint-free cloth on parts. NOTICE To avoid damaging the shafts, keep the housings parallel to each other when separating them; do not rock the housings from side to side. Do not use chisels or screwdrivers to split and pry apart the housings. Reassemble the gears and shafts into the lower housing in the position they were removed from. Check the gears for free and easy rotation. 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. This could result in a failure which causes serious injury and/or substantial property damage. 9. [. . . ] 4000 psi (28 MPa, 276 bar) 3000 psi (21 MPa, 210 bar) 250 psi (1. 72 MPa, 17. 2 bar) 0. 02-1. 0 gal/min (75-3800 cc/min) 0. 01-0. 5 gal/min (38-1900 cc/min) 0. 01-0. 5 gal/min (38-1900 cc/min) 40-180°F (4-80°C) 180°F (80°C) 20-3000 cps (see Pressure Drop Curve on page 19) solvent and light viscosity clear fluids (20-50 cps) 20-3000 cps (see Pressure Drop Curve on page 19) 200 ft (61 m) 1/4 npt(f) 0. 119 cc/pulse 0. 061 cc/pulse 0. 021 cc/pulse +/- 0. 5% through communicated flow range for most commonly used coatings. 1; Group D V max = 30 V I max = 15 mA Ci = 0. 2 microfarads Li = 0 mH See front cover 303 Stainless Steel, Tungsten Carbide, PTFE 303 Stainless Steel, PTFE 303 Stainless Steel, Tungsten Carbide, PTFE 6 lb (2. 7 kg) 6 lb (2. 7 kg) 2. 6 lb (1. 8 kg) S3000 Solvent Meter . . 18 308778M Pressure Drop Curve Pressure Drop Curve 3000 cps 2000 cps 1500 cps 1000 cps PSI 140 130 120 110 100 90 80 70 60 50 40 30 20 800 cps 500 cps 400 cps 300 cps 200 cps 100 cps 50 cps 1. 0 1. 1 gal/min 10 0 G3000/G250 G3000HR/G250HR S3000 0. 0 0. 0 0. 0 0. 1 0. 05 0. 2 0. 10 0. 3 0. 15 0. 4 0. 20 0. 5 0. 25 0. 6 0. 30 0. 7 0. 35 0. 13 0. 8 0. 40 0. 16 0. 9 0. 45 0. 19 0. 50 0. 55 gal/min 0. 22 0. 25 gal/min 0. 025 0. 05 0. 065 0. 076 0. 083 0. 10 308778M 19 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale 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. [. . . ]