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2 308778L
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Low Pressure Meters . . . . . . . . . . . . . . . . . . . . . 2
High Pressure Meters . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Dust and Foreign Matter . . . . . . . . . . . . . . . . . . . 5
Installing the Flow Meter . . . . . . . . . . . . . . . . . . . 5
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 7
Flow Meter Function . . . . . . . . . . . . . . . . . . . . . . 7
Recommended Usage . . . . . . . . . . . . . . . . . . . . 7
Flow Volume Range . . . . . . . . . . . . . . . . . . . . . . 7
Checking the Meter Accuracy . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Residue Build-up on the Meter Gears . . . . . . . . . 9
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cleaning or Servicing the Meter Chamber . . . . 10
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Flow Meter Kits . . . . . . . . . . . . . . . . . . . . . . . . . 11
Bare Meter Assemblies . . . . . . . . . . . . . . . . . . . 12
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pressure Drop Curve . . . . . . . . . . . . . . . . . . . . . . . 17
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 18
Models
Low Pressure Meters
300 psi (2.1 MPa, 21 bar) Maximum Fluid Working Pressure
High Pressure Meters
4000 psi (28 MPa, 280 bar) Maximum Fluid Working Pressure
Meter Part
No. Series Model Flow Range
249426 A G250 0.02 to 1.0 gpm (75 to 3800 cc/min)
249427 A G250HR 0.01 to 0.5 gpm (38 to 1900 cc/min)
Meter Part
No. Series Model Flow Range
239716 A G3000 0.02 to 1.0 gpm (75 to 3800 cc/min)
244292 A G3000HR 0.01 to 0.5 gpm (38 to 1900 cc/min)
289813 A G3000, with 90° sensor connector 0.02 to 1.0 gpm (75 to 3800 cc/min)
289814 A G3000HR, with 90° sensor connector 0.01 to 0.5 gpm (38 to 1900 cc/min)