Bronkhorst EX-FLOW Mass Flow Manual de usuario descargar pdf (Pagina 5)

BRONKHORST HIGH-TECH B.V.

TABLE OF CONTENTS

1 Intrinsic safe sensors

1.1 General description .................................................................................................................. page 7

1.2 Principle of operation of flow sensor ........................................................................................ page 7

1.3 Sensor and laminar flow device of flow sensor ....................................................................... page 7

1.4 Bronkhorst High-Tech B.V. flowhead ....................................................................................... page 8

1.5 Gas conversion factors ............................................................................................................ page 9

1.5.1 Software for conversion factor calculation ............................................................................... page 10

1.6 Control valve ............................................................................................................................ page 11

1.6.1 Introduction .............................................................................................................................. page 11

1.6.2 Kv-value calculation ................................................................................................................. page 12

1.6.3 Maximum pressure drop .......................................................................................................... page 12

1.7 Ex-proof Coils .......................................................................................................................... page 13

1.7.1 Introduction .............................................................................................................................. page 13

1.7.2 Style XB-coil ............................................................................................................................. page 13

1.7.3 Style XC-coil ............................................................................................................................ page 13

2 Installation

2.1 Receipt of equipment ............................................................................................................... page 14

2.2 Return shipment ....................................................................................................................... page 14

2.3 Service ..................................................................................................................................... page 14

2.4 Mounting .................................................................................................................................. page 15

2.5 In-line filter ............................................................................................................................... page 15

2.6 Gas connections ...................................................................................................................... page 15

2.7 Piping ....................................................................................................................................... page 16

2.8 Electrical connections .............................................................................................................. page 16

2.9 Caution ..................................................................................................................................... page 16

2.10 Supply pressure ....................................................................................................................... page 17

2.11 System purging ........................................................................................................................ page 17

2.12 Seals ........................................................................................................................................ page 17

2.13 Equipment storage ................................................................................................................... page 17

3 Operation

3.1 General .................................................................................................................................... page 18

3.2 Power and warm-up ................................................................................................................. page 18

3.3 Start-up .................................................................................................................................... page 18

3.4 Operating conditions ................................................................................................................ page 18

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Bronkhorst EX-FLOW Mass Flow Manual de usuario Pagina 5

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