User manual FLUKE GPC1-10000-AF

[. . . ] Operation and Maintenance Manual NSN 6685-01-529-6990 RN (1 of 3) GPC1-10000-AFTM Gas Pressure Controller © 2007 DH Instruments, a Fluke Company GPC1-10000-AFTM OPERATION AND MAINTENANCE MANUAL This equipment described in this manual is designed and manufactured for the intended purpose of generating high pressure gas. Certain precautions need to be followed during installation and operation of this device. Reading and understanding this material is essential to the safe and correct operation of the unit. Pressurized equipment is potentially dangerous. The equipment described in this manual generates and controls very high gas pressures. [. . . ] To avoid accidental overpressure of the any item connected to the GPC1, BEFORE opening the INLET valve, ALWAYS adjust the TEST INLET SET regulator so that the supply to the INLET valve is lower than the maximum pressure that is intended to be set with the GPC1 (see Section 2. 4. 2). and push button PDVV valves increase pressure much more At high pressure, the quickly than at low pressure. Observe pressure evolution carefully when operating these valves (see Section 3. 2. 3). Drain/purge the GPC1 sump regularly to remove any contaminants that may have entered the system from the supply gas or devices connected to GPC1 (see Section 4. 2). Put the PDVV plunger in the START position when starting a calibration or test sequence (see Section 3. 2. 3). Systems and DUTs connected to GPC1 should be emptied of liquids before they are pressurized (see Section 3. 2. 5, 4. 2). · · · · Page 17 © 2007 DH Instruments, a Fluke Company GPC1-10000-AFTM OPERATION AND MAINTENANCE MANUAL 2. 6 STORAGE AND SHIPPING When leaving GPC1 at rest but still setup for operation: Fully close the INLET valve. Release the high pressure supply and fully back off the TEST INLET SET regulator. To prepare GPC1 for long term storage or shipping: Disconnect all pneumatic pressure connections and plug the DH500 connections using DH500 plugs or orange dummy plugs held by gland nuts. If it is necessary to use alternate materials, use caution and ensure that: a) the front panel controls and indicators are protected; and, b) the tubing and components exposed through GPC1's open bottom are protected. GPC1 must ride on its four (4) feet - NOT on its internal components. © 2007 DH Instruments, a Fluke Company Page 18 3. OPERATION 3. 3. 1 OPERATION OPERATING PRINCIPLE Numerical references in this section refer to Section 3. 1, Figure 88. GPC1 is a self-contained system designed to set and adjust gas pressure in static pressure test and calibration systems. GPC1 combines the capability to execute large pressure changes very quickly with very fine pressure adjustment. These are rough pressure control using the TEST INLET and TEST OUTLET valves (12, 15) and fine pressure control using the PDVV (+) and (-) valves (13, 14). The first means of setting 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. 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). Opening the INLET valve (12) allows the supply pressure to enter GPC1 and reach the TEST ports (6, 7, 8). [. . . ] 3. 2. 1, 2. 4. 3 PDVV will not decrease pressure. Opening INLET valve increase pressure. does not TEST INLET SET regulator is set too low and/or external pressure supply to low. Page 31 © 2007 DH Instruments, a Fluke Company GPC1-10000-AFTM OPERATION AND MAINTENANCE MANUAL NO T E S © 2007 DH Instruments, a Fluke Company Page 32 6. APPENDICES 6. 6. 1 APPENDICES GPC1 TERMS, LABELS, AND SYMBOLS (GLOSSARY) , Fast ( ) and slow ( pressure adjustment. Used to increase pressure and for fine collar The DH500 fitting element that is threaded onto the tube and provides a surface for the gland to push against. Counter-clockwise Clockwise High pressure, gland and collar type fitting for 1/4 in. [. . . ]