DH Instruments PPC2 AF - Default Chapter; Table of Contents

TABLE OF CONTENTS
Page I © 1998 DH Instruments, Inc.
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TABLE OF CONTENTS ............................................................. I
1. INTRODUCTION .................................................................1
1.1 PRODUCT OVERVIEW ...........................................................................................................................1
1.2 SUBASSEMBLY DESCRIPTION AND LOCATION ................................................................................1
1.2.1 FRONT PANEL ASSEMBLY ..................................................................................................................... 1
1.2.2 REAR PANEL ASSEMBLY ....................................................................................................................... 2
1.2.3 POWER SUPPLIES................................................................................................................................... 3
1.2.4 MICRO CARD............................................................................................................................................ 3
1.2.5 DRIVER BOARD ....................................................................................................................................... 4
1.2.6 BAROMETER BOARD .............................................................................................................................. 4
1.2.7 PNEUMATIC MODULE ............................................................................................................................. 5
1.2.8 TRANSDUCER SELECTION MODULE.....................................................................................................6
1.2.9 REFERENCE PRESSURE TRANSDUCERS............................................................................................. 6
1.2.9.1 HIGH (PRIMARY) PRESSURE REFERENCE TRANSDUCER.............................................................. 7
1.2.9.2 LOW (SECONDARY) PRESSURE REFERENCE TRANSDUCER ........................................................ 7
1.2.10 SOURCE PRESSURE RELIEF VALVE..................................................................................................... 7
1.2.11 SELF PURGING LIQUID TRAP (SPLT) .................................................................................................... 8
1.3 SPECIFICATIONS ...................................................................................................................................9
1.3.1 GENERAL SPECIFICATIONS................................................................................................................... 9
1.3.2 PRESSURE MEASUREMENT SPECIFICATIONS .................................................................................... 9
1.3.2.1 HIGH PRESSURE REFERENCE TRANSDUCER (HI REF) .................................................................. 9
1.3.2.2 LOW PRESSURE REFERENCE TRANSDUCER (LO REF).................................................................. 9
1.3.2.3 BAROMETER ...................................................................................................................................... 10
1.3.3 PRESSURE CONTROL SPECIFICATIONS ............................................................................................ 10
1.3.3.1 STATIC PRESSURE CONTROL .........................................................................................................10
1.3.3.2 DYNAMIC PRESSURE CONTROL...................................................................................................... 10
2. INSTALLATION AND SHORT TERM STORAGE ..................... 11
2.1 UNPACKING AND INSPECTION ..........................................................................................................11
2.1.1 REMOVING FROM PACKAGING............................................................................................................ 11
2.1.2 INSPECTING CONTENTS....................................................................................................................... 11
2.2 SITE REQUIREMENTS..........................................................................................................................11
2.3 INITIAL SETUP......................................................................................................................................12
2.3.1 PREPARING FOR OPERATION.............................................................................................................. 12
2.3.2 POWER CONNECTION .......................................................................................................................... 12
2.3.3 CONNECTING TO A PRESSURE SUPPLY (SUPPLY PORT)................................................................ 12
2.3.4 CONNECTING A VACUUM PUMP (EXHAUST PORT) ........................................................................... 12
2.3.5 CONNECTING TO THE DEVICE UNDER TEST (TEST PORT)................................................ 13
2.3.5.1 INSTALLING THE SPLT ...................................................................................................................... 13
2.3.6 THE VENT CONNECTION (VENT PORT) ............................................................................................... 14
2.3.7 THE AUTOZERO CONNECTION (AUTOZERO PORT)........................................................................... 14
2.4 POWER UP AND VERIFICATION .........................................................................................................14
2.4.1 SWITCH POWER ON.............................................................................................................................. 14
2.4.2 SET THE USER LEVEL (INITIAL START UP ONLY).............................................................................. 15
2.4.3 CHECK PROPER PRESSURE MEASUREMENT OPERATION ............................................................. 15
2.4.3.1 CHECKING ABSOLUTE PRESSURE MEASUREMENT ..................................................................... 15
2.4.3.2 CHECKING GAUGE PRESSURE MEASUREMENT ........................................................................... 15
2.4.4 LEAK CHECK.......................................................................................................................................... 15
2.4.5 PURGE.................................................................................................................................................... 15
2.4.6 CHECK PROPER PRESSURE CONTROL OPERATION........................................................................ 16
2.5 SHORT TERM STORAGE .....................................................................................................................16