User manual FLUKE GPC1-10000

[. . . ] Operation and Maintenance Manual GPC1-10000/GPC1-16000TM Gas Pressure Controller © 2007 DH Instruments, a Fluke Company GPC1-10000 / GPC1-16000TM OPERATION AND MAINTENANCE MANUAL High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. © 2007 DH Instruments, a Fluke Company All rights reserved. Information in this document is subject to change without notice. [. . . ] GPC1 must ride on its four (4) feet - NOT on its internal components. © 2007 DH Instruments, a Fluke Company Page 14 2. 5BINSTALLATION 2. 6 SPECIAL CONSIDERATIONS FOR HYDROCARBON FREE OPERATION A special "hydrocarbon free" version of GPC1 (P/N 401801 or P/N 402201) is available. This part number is delivered free of known sources of hydrocarbon in the GPC1 high pressure gas circuit. Of course, GPC1 will remain hydrocarbon free only so long as hydrocarbons are not introduced from an external source. To maintain a hydrocarbon free GPC1, only connect devices to it that are known to be hydrocarbon free. If using a gas booster to supply the high pressure, the gas booster must be a hydrocarbon free version. If using a PG7202 piston gauge, the PG7202 must be a hydrocarbon free version and used with Krytox® lubricated piston-cylinder modules. Page 15 © 2007 DH Instruments, a Fluke Company GPC1-10000 / GPC1-16000TM OPERATION AND MAINTENANCE MANUAL NO T E S © 2007 DH Instruments, a Fluke Company Page 16 3. OPERATION 3. 3. 1 OPERATION OPERATING PRINCIPLE Numerical references in this section refer to Section 3. 1, Figure 6. GPC1 is a self-contained system designed to set and adjust gas pressure into static pressure test and calibration systems. GPC1-16000 operates from atmosphere (zero gauge) to 110 MPa (16 000 psi). GPC1-10000 operates to 70 MPa (10 000 psi). GPC1 combines the capability to execute large pressure changes very quickly with very fine pressure adjustment. GPC1 uses two different techniques to set and adjust pressure. These are rough pressure control using the TEST INLET valve (12) and TEST OUTLET valve (15) and fine pressure control using the PDVV (+) (13) and (-) valves (14). The first means of generating and adjusting pressure uses the external gas pressure supply (1) with the TEST INLET SET regulator (5), TEST INLET valve (12) and TEST OUTLET valve (15). This combination is used for filling the system under test, making large pressure changes and for rough pressure control. The valves are Belleville spring loaded, half-turn needle valves. Their operation is highly progressive over a half-turn with mechanical stops at each end so they cannot be over tightened. The regulator is self venting and its output is indicated by the TEST INLET gauge (4). The valve is turned clockwise (CW) to close and counter-clockwise (CCW) to open. A WHITE dot on the handle body indicates the valve's current open/close position. The TEST INLET SET regulator (5) and TEST INLET gauge (4) are used to set the supply pressure to the TEST INLET valve (12). [. . . ] The device that is connected to GPC1 to be tested or calibrated. The "jam nut" in a DH500 fitting that pushes the collar on the tube into the seat. A pneumatically actuated plunger in a cylinder used to increase and decrease the volume of the high pressure gas test system and provide fine adjustment of the test pressure. Momentary, push button actuated, poppet valves that admit drive air drive pressure to the PDVV actuator causing the PDVV plunger to move forward, compressing the high pressure gas and increasing the test pressure. [. . . ]