Specifications

TABLE OF CONTENTS
Page I © 1998-2007 DH Instruments, a Fluke Company
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TABLE OF CONTENTS...............................................................I
TABLES ..................................................................................V
FIGURES................................................................................VI
ABOUT THIS MANUAL ............................................................VII
1. INTRODUCTION .................................................................1
1.1 PRODUCT OVERVIEW.................................................................................................................................................................1
1.1.1 MOLBLOC FLOW ELEMENTS ........................................................................................................................................................... 1
1.1.1.1 MOLBLOC-L FLOW ELEMENT....................................................................................................................................................... 1
1.1.1.2 MOLBLOC-S FLOW ELEMENT...................................................................................................................................................... 1
1.2 SPECIFICATIONS.........................................................................................................................................................................2
1.2.1 GENERAL SPECIFICATIONS............................................................................................................................................................. 2
1.2.2 REFERENCE PRESSURE TRANSDUCER (RPT) SPECIFICATIONS..............................................................................................2
1.2.2.1 UPSTREAM AND DOWNSTREAM RPTS...................................................................................................................................... 2
1.2.2.2 DIFFERENTIAL RPT (MICRORANGE OPTION)............................................................................................................................ 3
1.2.3 TEMPERATURE MEASUREMENT SPECIFICATIONS...................................................................................................................... 3
1.2.4 FLOW MEASUREMENT SPECIFICATIONS....................................................................................................................................... 3
1.2.4.1 MOLBLOC-L .................................................................................................................................................................................... 3
1.2.4.1.1 MOLBLOC-L FLOW MEASUREMENT SPECIFICATIONS, MICRORANGE OPTION............................................................. 4
1.2.4.1.2 MOLBLOC-L PRESSURE DEPENDENT CALIBRATION TYPES............................................................................................. 4
1.2.4.1.3 MOLBLOC-L RANGES WITH LOW PRESSURE CALIBRATIONS........................................................................................... 6
1.2.4.1.4 MOLBLOC-L RANGES WITH HIGH PRESSURE CALIBRATIONS.......................................................................................... 7
1.2.4.1.5 MOLBLOC-L DIMENSIONS ....................................................................................................................................................... 8
1.2.4.2 MOLBLOC-S.................................................................................................................................................................................... 9
1.2.4.2.1 MOLBLOC-S RANGES............................................................................................................................................................... 9
1.2.4.2.2 MOLBLOC-S PRESSURE DEPENDENT CALIBRATION TYPES..........................................................................................11
1.2.4.2.3 MOLBLOC-S DIMENSIONS..................................................................................................................................................... 12
1.2.5 FRONT AND REAR PANELS............................................................................................................................................................ 13
1.2.5.1 FRONT PANEL.............................................................................................................................................................................. 13
1.2.5.2 REAR PANEL ................................................................................................................................................................................14
2. INSTALLATION ................................................................ 15
2.1 UNPACKING AND INSPECTION ...............................................................................................................................................15
2.1.1 REMOVING FROM PACKAGING...................................................................................................................................................... 15
2.1.2 INSPECTING CONTENTS................................................................................................................................................................. 15
2.2 SITE REQUIREMENTS...............................................................................................................................................................15
2.3 INITIAL SETUP............................................................................................................................................................................16
2.3.1 PREPARING FOR OPERATION ....................................................................................................................................................... 16
2.3.2 POWER CONNECTION..................................................................................................................................................................... 16
2.3.3 MOLBOX RFM TO MOLBLOC CONNECTION................................................................................................................................. 16
2.3.4 GAS SUPPLY AND FLOWPATH CONNECTIONS........................................................................................................................... 17
2.3.5 VACUUM SUPPLY (MOLBLOC-S ONLY)........................................................................................................................................ 18
2.3.6 COMMUNICATIONS CONNECTIONS ..............................................................................................................................................18
2.4 POWER UP AND VERIFICATION..............................................................................................................................................18
2.4.1 POWER UP......................................................................................................................................................................................... 18
2.4.2 CHECK PROPER PRESSURE MEASUREMENT OPERATION .......................................................................................... 19
2.4.3 CHECK PROPER TEMPERATURE MEASUREMENT OPERATION.......................................................................................... 19
2.4.4 LEAK CHECK..................................................................................................................................................................................... 19
2.4.5 CHECK/SET SECURITY LEVEL....................................................................................................................................................... 20
2.5 ADDITIONAL PRECAUTIONS TO TAKE BEFORE MAKING FLOW MEASUREMENTS .......................................................20
2.6 SHORT TERM STORAGE...........................................................................................................................................................20