Table Of Contents; Models; Low Pressure Meters; High Pressure Meters - Graco G250 Instructions And Parts

Models

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
Models

Low Pressure Meters

300 psi (2.1 MPa, 21 bar) Maximum Fluid Working Pressure
Meter Part
No. Series
249426 A
249427 A

High Pressure Meters

4000 psi (28 MPa, 280 bar) Maximum Fluid Working Pressure
Meter Part
No. Series
239716 A
244292 A
289813 A
289814 A
2
Model
G250 0.02 to 1.0 gpm (75 to 3800 cc/min)
G250HR 0.01 to 0.5 gpm (38 to 1900 cc/min)
Model
G3000
G3000HR
G3000, with 90° sensor connector
G3000HR, with 90° sensor connector
http://gracomanual.com
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
Flow Range
0.02 to 1.0 gpm (75 to 3800 cc/min)
0.01 to 0.5 gpm (38 to 1900 cc/min)
0.02 to 1.0 gpm (75 to 3800 cc/min)
0.01 to 0.5 gpm (38 to 1900 cc/min)
Flow Range
308778L