Revision 3
STT850
Temperature Transmitter User’s Manual
Page vii
Contents
1
Introduction .................................................................................................................................... 1
1.1.
Overview ................................................................................................................................ 1
1.2.
Features and Options .............................................................................................................. 1
1.1.1
Physical Characteristics .................................................................................................. 1
1.1.2
Functional Characteristics .............................................................................................. 2
1.3.
STT850 SmartLine Transmitter NamePlate ........................................................................... 3
1.4.
Safety Certification Information ............................................................................................. 3
1.5.
Transmitter Adjustments ........................................................................................................ 3
1.6.
Display Options ...................................................................................................................... 4
1.7.
Optional 3-Button Assembly .................................................................................................. 4
2
Application Design ......................................................................................................................... 5
1.8.
Overview ................................................................................................................................ 5
1.9.
Safety ...................................................................................................................................... 5
2.1.1
Accuracy ......................................................................................................................... 5
2.1.2
Diagnostic Messages ...................................................................................................... 5
2.1.3
Safety Integrity Level (SIL) ........................................................................................... 6
3
Installation and Startup ................................................................................................................... 7
1.10.
Installation Site Evaluation ..................................................................................................... 7
1.11.
Honeywell MC Toolkit........................................................................................................... 7
1.12.
Display Installation Precautions ............................................................................................. 7
1.13.
Mounting STT850 SmartLine Temperature Transmitters ...................................................... 8
3.1.1
Summary......................................................................................................................... 8
3.1.2
Mounting Dimensions .................................................................................................... 9
3.1.3
Bracket Mounting Procedure .......................................................................................... 9
1.14.
Wiring a Transmitter ............................................................................................................ 10
3.1.4
Loop Power Overview .................................................................................................. 10
3.1.5
Digital System Integration Information ........................................................................ 12
3.1.6
Wiring Variations ......................................................................................................... 12
3.1.7
Loop Wiring Procedure ................................................................................................ 12
3.1.8
Grounding and Lightning Protection ............................................................................ 13
3.1.9
Supply Voltage Limiting Requirements ....................................................................... 13
3.1.10
Process Sealing ............................................................................................................. 13
3.1.11
Explosion-Proof Conduit Seal ...................................................................................... 13
3.1.12
Input Sensor Wiring ..................................................................................................... 14
1.15.
Startup .................................................................................................................................. 18
3.1.13
Overview ...................................................................................................................... 18
3.1.14
Startup Tasks ................................................................................................................ 18
3.1.15
Output Check Procedures ............................................................................................. 18
3.1.16
Constant Current Source Mode Procedure ................................................................... 19
4
Operation ...................................................................................................................................... 21
1.16.
Overview .............................................................................................................................. 21
1.17.
Three-Button Operation ........................................................................................................ 21
4.1.1
Menu Navigation .......................................................................................................... 22
4.1.2
Data Entry ..................................................................................................................... 22
4.1.3
Editing a Numeric Value .............................................................................................. 23
4.1.4
Selecting a new setting from a list of choices .............................................................. 23
4.1.5
The Advanced Display Menus ..................................................................................... 24
Summary of Contents for STT850 SMARTLINE
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