User manual GRACO 15J755 9-2010

[. . . ] If gauges do not read zero, determine cause and carefully relieve pressure by VERY SLOWLY loosening a fitting. Clear obstruction before pressurizing system again. 1. Jog the motor to bring the stand side lower to the bottom of its stroke. Remove two screws (12) and the cover (32). [. . . ] Enter calibration information found on the label (36*) into the VFD. See Pressure Sensor Calibration Information. Reinstall the cover (32*) with two screws (12*). 7 Torque to 15-20 ft-lb (21-27 N·m). 7 *43 *44 58* 7 *42 25a* *41 D FIG. Pressure Transducer ti8721a Pressure Sensor Calibration Information Pressure sensor information (Pr 20. 34, 20. 35, and 20. 36) for your system must be keyed into the Variable Frequency Drive before system start-up. To prevent accidental change of pressure sensor calibration parameters, they are locked by Pr 20. 16. To enter calibration parameters, perform the following steps: a. Set Pr 20. 16 to 777, to unlock pressure sensor parameters. Enter calibration parameters Pr 20. 34, 20. 35, and 20. 36. Set Pr 20. 16 to 0 to lock pressure sensor parameters. c. Calibration Parameters from the label: Pr 20. 34 ­ Zero Calibration Pr 20. 35 ­ Calibration Pressure Pr 20. 36 ­ High Calibration 311603C 3 Pressure Sensor Calibration Information 25c* 25b* C 25b* 11 12* 25a* 36* 25c* 33* B ti8725a 35* 44* 11 Torque to 66-78 in-lb (7. 4-8. 8 N·m). FIG. Circuit Board Connections 4 311603C Pressure Transducer Calibration Procedure Pressure Transducer Calibration Procedure E-Flo pressure sensor must be calibrated against an instrument grade High Precision Pressure Transducer, which should be installed near the E-Flo pressure sensor. Ensure that the High Precision Pressure Transducer calibration is up to date. Set Pr 20. 16 to 777, to unlock pressure sensor parameters. Calibrate Low Pressure Point as follows: a. Calibration instrument pressure reading should be 0 psi. Use Keypad to navigate to Pr 20. 33; monitor its reading for 5 ­ 10 seconds to determine its average value. Navigate to Pr 20. 34 and enter the recorded average value of Pr 20. 33. Keep the system pressurized and ensure that pressure does not fluctuate. Take a pressure reading from the calibration instrument and make a record of it. d. Navigate to Pr 20. 35 and enter the recorded system pressure. Navigate to Pr 20. 33; monitor its reading for 5-10 seconds to determine its average value. Navigate to Pr 20. 36 and enter the recorded value of Pr 20. 33. 5. Set Pr 20. 16 to 0 to lock pressure sensor parameters. [. . . ] In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise. FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées. Graco Information For the latest information about Graco products, visit www. graco. com. TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor. [. . . ]