Underwriters Laboratories S600 Series Manual de instalación descargar pdf (Pagina 9)

Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual Table of Contents

3-9000-771 Rev A May 2012

Table of Contents i

Contents

Important Safety Instructions

Section 1: Introduction

1.1 Typical Applications .................................................................................... 1

1.2 Features and benefits: ................................................................................. 1

1.3 Acronyms, abbreviations and definitions ....................................................... 2

1.4 Daniel MeterLink software ........................................................................... 5

1.5 3818 LNG Liquid Ultrasonic Flow Meter design .............................................. 6

1.6 Meter specifications .................................................................................... 8

1.7 Pre-installation considerations ................................................................... 11

1.8 Safety ...................................................................................................... 11

1.9 Certifications and approvals ....................................................................... 12

1.10 FCC compliance ....................................................................................... 13

Section 2: Mechanical installation

2.1 Meter piping, lifting and mounting ............................................................. 15

2.2 Meter components .................................................................................... 17

2.3 Piping recommendations ........................................................................... 18

2.4 Field hydrostatic pressure testing ............................................................... 21

2.5 Meter safety for hoist rings and lifting slings ............................................... 22

2.5.1 Use of appropriate safety engineered swivel hoist rings

in meter end flanges ....................................................................................... 23

2.5.2 Appropriately rated lifting slings ..................................................................... 28

2.6 Mounting requirements in Liquefied Natural Gas pipelines ........................... 31

Section 3: Electrical installation

3.1 Cable length TTL mode .............................................................................. 35

3.2 Cable length Open Collector mode ............................................................. 35

3.3 Grounding meter electronics ..................................................................... 36

3.4 Conduit seals ............................................................................................ 38

3.4.1 Startup for systems using explosion-proof conduit ......................................... 39

3.4.2 Startup for systems that use flame-proof cable ............................................... 40

3.5 Wiring and I/O .......................................................................................... 41

3.5.1 CPU Module labeling and LED indicators......................................................... 42

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 123 124

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Underwriters Laboratories S600 Series Manual de instalación Pagina 9