1
Introduction ........................................................................................................................................................... 1
1.1
Overview ....................................................................................................................................................... 1
1.2
Features and Options ..................................................................................................................................... 1
1.2.1 Physical Characteristics ................................................................................................................................ 1
1.2.2 Functional Characteristics ............................................................................................................................. 2
1.3
ST 800 Transmitter Name Plate .................................................................................................................... 3
1.4
1.5
Transmitter Adjustments ............................................................................................................................... 3
1.6
Display Options ............................................................................................................................................. 4
1.7
Optional 3-Button Assembly ......................................................................................................................... 4
2
Application Design ............................................................................................................................................... 5
2.1
Overview ....................................................................................................................................................... 5
2.1.1 Accuracy ....................................................................................................................................................... 5
2.1.2 Diagnostic Messages ..................................................................................................................................... 5
3
Installation and Startup .......................................................................................................................................... 7
3.1
Installation Site Evaluation ............................................................................................................................ 7
3.2
3.3
3.4
3.4.1 Summary ....................................................................................................................................................... 8
3.4.2 Mounting Dimensions ................................................................................................................................... 9
3.4.5 Flange Mounting ......................................................................................................................................... 11
3.4.6 Flush Mounting Procedure .......................................................................................................................... 12
3.5
Piping the ST 800 Transmitter ..................................................................................................................... 14
3.5.1 Piping Arrangements .................................................................................................................................. 14
3.5.3 General Piping Guidelines ........................................................................................................................... 15
3.6
Wiring a Transmitter ................................................................................................................................... 16
3.6.1 Overview ..................................................................................................................................................... 16
3.6.3 Wiring Variations ........................................................................................................................................ 18
3.6.4 Wiring Procedure ........................................................................................................................................ 18
3.6.5 Lightning Protection .................................................................................................................................... 18
3.6.7 Process Sealing ............................................................................................................................................ 19
3.7
Startup ......................................................................................................................................................... 19
3.7.1 Overview ..................................................................................................................................................... 19
3.7.2 Startup Tasks ............................................................................................................................................... 19
3.7.3 Output Check Procedures ............................................................................................................................ 20
vi
Table of Contents
ST 800 Pressure Transmitter User's Manual
Revision 15