Fluid Components Intl ST51A - Default Chapter; Table of Contents

ST51A/ST75A/ST75AV Flow Meters 06EN003426 Rev. C
Fluid Components International LLC iii
Table of Contents
Table of Contents ......................................................................................................................................................................................iii
List of Figures ..........................................................................................................................................................................................vii
List of Tables ........................................................................................................................................................................................... viii
1 GENERAL ......................................................................................................................................................................................... 1
Product Description ........................................................................................................................................................................... 1
Theory of Operation .......................................................................................................................................................................... 1
Safety Instructions ............................................................................................................................................................................. 1
Order Verification .............................................................................................................................................................................. 1
Hardware – Model Descriptions ................................................................................................................................................ 2
Optional Accessories ................................................................................................................................................................ 2
Specifications .................................................................................................................................................................................... 3
2 INSTALLATION ................................................................................................................................................................................. 5
Instrument Identification and Outline Dimensions ............................................................................................................................. 5
Pre-Installation .................................................................................................................................................................................. 5
Serial Number ........................................................................................................................................................................... 5
Flow Direction Alignment .......................................................................................................................................................... 5
Recommended Straight Run ..................................................................................................................................................... 7
Installing ST51A Flow Element ......................................................................................................................................................... 7
Compression Fitting Mounting .................................................................................................................................................. 7
Retractable Packing Gland Mounting ........................................................................................................................................ 9
Retraction/Removal Procedure ....................................................................................................................................... 10
Installing ST75A/ST75AV Flow Element ......................................................................................................................................... 11
Pipe Tee Installation ................................................................................................................................................................ 11
Tube Tee Installation ............................................................................................................................................................... 11
NPT Flow Tube Installation ..................................................................................................................................................... 11
Flanged Installation ................................................................................................................................................................. 11
Re-positioning the Display .............................................................................................................................................................. 11
Installing the Remote Flow Meter System ....................................................................................................................................... 12
Remote Cable ......................................................................................................................................................................... 13
Local Enclosure ....................................................................................................................................................................... 14
Remote Enclosure ................................................................................................................................................................... 15
Instrument Wiring ............................................................................................................................................................................ 17
Accessing the Interface Board Connection Terminals ............................................................................................................ 18
ESD Precautions ............................................................................................................................................................. 18
Interface Board Connections ................................................................................................................................................... 19
Power Connections ......................................................................................................................................................... 19
Signal Connections ................................................................................................................................................................. 21
4-20 mA Analog Outputs ................................................................................................................................................. 21
HART Connections .......................................................................................................................................................... 22