Honeywell SmartLine ST 700 - Process Sealing

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Revision 13 ST 700 SmartLine Pressure Transmitters User’s Manual Page 35

4.6.7 Process Sealing

The ST 700 SmartLine pressure transmitter is CSA-certified as a Dual Seal device in accordance with

ANSI/ISA–12.27.01–2003, “Requirements for Process Sealing Between Electrical Systems and

Flammable, or Combustible Process Fluids.”

Main Page

Table of Contents7
ST 700 Transmitter Series17
Overview17
Table 1 - ST 700 Standard Andf Basic Model Types18
Introduction to the ST 700 Standard Transmitter19
Features and Options19
Table 2 - Features and Options_St 700 Standard Transmitter19
Physical Characteristics20
Figure 1 - ST 700 Standard Transmitter Major Assemblies20
Figure 2 - ST 700 Standard Transmitter Electronics Housing Components20
Functional Characteristics21
ST 700 Standard Transmitter Nameplate21
Figure 3 -ST 700 Standard Transmitter - Typical Name Plate21
Safety Certification Information22
Transmitter Adjustments22
Display Options -Standard Display22
Table 3 - Available Display Characteristics22
Optional Integrated Two-Button Assembly (Standard Display)23
Application Design for the ST 700 Standard Transmitter24
Overview24
Accuracy24
Diagnostic Messages25
Safety26
Table 4 - ST 700 Standard Transmitter - Basic Display Diagnostics Messages26
Safety Integrity Level (SIL)27
Installation and Startupfor the ST 700 Standard Transmitter28
Installation Site Evaluation28
Honeywell MC Toolkit28
Display Installation Precautions28
Mounting ST 700 Standard Transmitters29
Summary30
Figure 4 - ST 700 Standard Transmitter - Typical Bracket and Flange Mounted Installations30
Flush Mounting - ST 700 Standard Transmitter31
Figure 5 - ST 700 Standard Transmitter - Typical Flush Mounted Installation31
Mounting Dimensions32
Bracket Mounting Procedure33
Figure 6 - ST 700 Standard Transmitter - Angle Mounting Bracket Secured to a Horizontal or Vertical33
Table 5 - ST 700 Standard Transmitter - Mounting Bracket Procedure33
Figure 7 - ST 700 Standard Transmitter - Inline Model Mounted to an Optional Bracket34
Figure 8 - ST 700 Standard Transmitter - Rotating the Electronics Housing34
Mounting Transmitters with Small Absolute or Differential Pressure Spans35
Figure 9 - ST 700 Standard Transmitter - Using a Spirit Balance to Level a Transmitter35
Flange Mounting36
Figure 10 - ST 700 Standard Transmitter - Tank-Flange Mounted Transmitter36
Remote Diaphragm Seal Mounting Information37
Figure 11 - ST 700 Standard Transmitter - Representative Remote Diaphragm Seal Transmitter37
Table 6 - ST 700 Standard Transmitter - Flange Mounting Guidelines37
Table 7 - ST 700 Standard Transmitter - Remote Diaphragm Mounting Details37
Piping the ST 700 Standard Transmitter38
Piping Arrangements39
Figure 12 - ST 700 Standard Transmitter - Typical 3-Valve Manifold with Blow-Down Piping39
Transmitter Location40
Table 8 - ST 700 Standard Transmitter - Suggested Connection Locations40
General Piping Guidelines41
Procedure to Install Flange Adapters42
Wiring the ST 700 Standard Transmitter42
Figure 13 - ST 700 Standard Transmitter - Flange Adapter Removal and Replacement42
Overview43
Figure 14 - ST 700 Standard Transmitter - Operating Ranges43
Figure 15 - ST 700 Standard Transmitter - 3-Screw Terminal Board and Grounding Screw44
Digital System Integration Information46
Wiring Variations47
Wiring Procedure48
Lightning Protection49
Supply Voltage Limiting Requirements50
Process Sealing51
Explosion-Proof Conduit Seal52
Startup - ST 700 Standard Transmitter53
Overview54
Startup Tasks55
Output Check Procedures56
Constant Current Source Mode Procedure57
Figure 16 - ST 700 Standard Transmitter - Current Loop Test Connections57
Operation_St 700 Standard Transmitter58
Overview58
Three-Button Operation58
Figure 17 - ST 700 Standard Transmitter - Three-Button Option58
Table 9 - Three-Button Option Functions59
The Basic Display Menu60
Table 10 - the Basic Display Menus61
Data Entry64
Table 11 - Three-Button Data Entry64
Editing a Numeric Value65
Selecting a New Setting from a List of Choices66
Two-Button Operation67
Figure 18 - ST 700 Standard Transmitter - Two-Button Option67
The Standard Display Menu68
Table 12 - ST 700 Basic Transmitter: Standard Display Menus68
Standard Display Abbreviations87
Table 14 - ST 700 Basic Transmitter - the Standard Display Abbreviations87
Data Entry88
Table 15 -Two-Button Data Entry88
Editing a Numeric Value89
Selecting a New Setting from a List of Choices90
Basic and Standard Display Operations91
Editing a Numeric Value92
Selecting a New Setting from a List of Choices93
Three Button Operation with no Display Installed94
Zero Adjustment95
Span Adjustment96
Changing the Default Failsafe Direction97
And Analog Differences98
Procedure to Establish Failsafe Operation99
Figure 19 - ST 700 Standard Transmitter - Locating the Failsafe and Write Protect Jumpers99
Table 16 - ST 700 Standard Transmitter - HART and de Failsafe and Write Protect Jumpers100
Table 17 - ST 700 Standard Transmitter - Fieldbus Simulation and Write Protect Jumpers101
Monitoring the Basic and Standard Displays for the ST 700 Standard Transmitter102
Basic Display_St 700 Standard Transmitter103
Figure 20 - ST 700 Standard Transmitter - Basic Display with Process Variable Format103
Standard Display_St 700 Standard Transmitter104
Figure 21 - ST 700 Standard Transmitter - Standard Display with Process Variable Format105
Maintenance_St 700 Standard Transmitter106
Overview106
Preventive Maintenance Practices and Schedules106
Inspecting and Cleaning Barrier Diaphragms106
Figure 22 - ST 700 Standard Transmitter - DP Transmitter Head Disassembly107
Figure 23 - ST 700 Standard Transmitter - Head Bolt Tightening Sequence108
Table 18 - Head Bolt Torque Values108
Replacing the Communication Module109
Figure 24 - ST 700 Standard Transmitter - PWA Replacement109
Replacing the Meter Body111
Figure 25 - ST 700 Standard Transmitter - Disassembly for Meter Body Replacement111
Figure 26 - ST 700 Standard Transmitter - Hardware Location to Remove the Meter Assembly112
Figure 27 - ST 700 Standard Transmitter - Meter Body Reassembly113
Figure 28 - ST 700 Standard Transmitter - Head Bolt Tightening Sequence113
Calibration for the ST 700 Standard Transmitter115
Recommendations for Transmitter Calibration115
Calibration Procedures115
Troubleshooting on the ST 700 Standard Transmitter116
Overview116
Critical Diagnostics Screens116
Fault Conditions and Recommended Corrective Actions - Basic Display117
Table 19 - ST 700 Standard Transmitter - Fault Conditions and Recommended Corrective Actions for Basic Display117
Fault Conditions and Recommended Corrective Actions - Standard Display118
Table 20 - ST 700 Standard Transmitter - Fault Conditions and Recommended Corrective Actions118
Parts List_St 700 Standard Transmitter119
Overview119
Table 21 - ST 700 Standard Transmitter - Summary List of Recommended Spare Parts119
Figure 29 - ST 700 Standard Transmitter - Angle and Flat Bracket Parts120
Figure 30 - ST 700 Standard Transmitter - Electronic Housing, Display End121
Table 22 - ST 700 Standard Transmitter - Angle and Flat Bracket Parts121
Table 23 - ST 700 Standard Transmitter Major Assemblies122
Figure 31 - ST 700 Standard Transmitter - Electronic Housing, Terminal Block End123
Figure 32 - ST 700 Standard Transmitter - Major Assemblies124
Table 24 - ST 700 Standard Transmitter Models STD720, 730 & 770125
Figure 33 - ST 700 Standard Transmitter - ST 700 Models STD720, 730, 770127
Figure 34 - ST 700 Standard Transmitter - STG730, 740, 770 and STA722, 740 Transmitter Body130
Figure 35 - ST 700 Standard Transmitter - Inline Gauge and Inline Atmospheric Meter Body Bodies131
Table 26 - ST 700 Standard Transmitter - Inline Gauge and Inline Atmospheric Meter Body Parts131
Figure 36 - ST 700 Standard Transmitter - Extended Flange Design132
Figure 37 - ST 700 Standard Transmitter - Flush Flange Design132
Table 27 - ST 700 Standard Transmitter - Flange-Mounted Meter Body Parts - STF724, 732132
Figure 38 - ST 700 Standard Transmitter - Pseudo Flange Design133
Figure 39 - ST 700 Standard Transmitter - Remote Seal Diaphragm133
Figure 40 - ST 700 Standard Transmitter - Flush Mount Meter Body134
Table 28 - ST 700 Standard Transmitter - Flush Mount Meter Body Parts134
Introduction_St 700 Basic Transmitter135
Overview135
Features and Options135
Table 29 - ST 700 Basic Transmitter - Features and Options135
Physical Characteristics136
Figure 41 - ST 700 Basic Transmitter - Major Assemblies136
Figure 42 - ST 700 Basic Transmitter Electronics Housing Components136
Functional Characteristics137
ST 700 Transmitter Nameplate137
Figure 43 - ST 700 Basic Transmitter - Name Plate137
Safety Certification Information138
Transmitter Adjustments138
Display Options -Standard Display138
Table 30 - ST 700 Basic Transmitter - Available Display Characteristics138
Optional Integrated Two-Button Assembly (Standard Display)139
Application Design_St 700 Basic Transmitter140
Overview140
Accuracy140
Diagnostic Messages141
Safety141
Safety Integrity Level (SIL)142
Installation and Startup_St 700 Basic Transmitter143
Installation Site Evaluation143
Honeywell MC Toolkit143
Display Installation Precautions143
Mounting_St 700 Basic Transmitter144
Summary145
Figure 44 - ST 700 Basic Transmitter - Typical Bracket Mounted and Flange Mounted Installations145
Flush Mounting_St 700 Basic Transmitter146
Figure 45 - ST 700 Basic Transmitter - Typical Flush Mounted Transmitter Installation146
Mounting Dimensions, ST 700 Basic Transmitter147
Bracket Mounting Procedure for ST 700 Basic Transmitter148
Figure 46 - ST 700 Basic Transmitter - Angle Mounting Bracket Secured to a Horizontal or Vertical148
Table 31 - ST 700 Basic Transmitter - Mounting Bracket Procedure148
Figure 47 - ST 700 Basic Transmitter - Inline Model Mounted to an Optional Bracket149
Figure 48 - ST 700 Basic Transmitter - Rotating the Electronics Housing149
Mounting Transmitters with Small Absolute or Differential Pressure Spans150
Figure 49 - ST 700 Basic Transmitter, Using a Spirit Balance to Level a Transmitter150
Flange Mounting_St 700 Basic Transmitter151
Figure 50 - ST 700 Basic Transmitter, Tank-Flange Mounted Transmitter151
Remote Diaphragm Seal Mounting Information_St 700 Basic Transmitter152
Figure 51 - ST 700 Basic Transmitter - Representative Remote Diaphragm Seal Transmitter152
Table 32 - ST 700 Basic Transmitter, Flange Mounting Guidelines152
Table 33 - ST 700 Basic Transmitter - Remote Diaphragm Mounting Details152
Piping the ST 700 Basic Transmitter153
Piping Arrangements154
Figure 52- ST 700 Basic Transmitter - Typical 3-Valve Manifold with Blow-Down Piping154
Suggestions for Transmitter Location155
Table 34 - ST 700 Basic Transmitter - Suggested Connection Locations155
General Piping Guidelines156
Procedure to Install Flange Adapters157
Figure 53 - ST 700 Basic Transmitter - Flange Adapter Removal and Replacement157
Wiring an ST 700 Basic Transmitter158
Overview159
Figure 54 - ST 700 Basic Transmitter - Operating Ranges159
Figure 55 - ST 700 Basic Transmitter - 3-Screw Terminal Board and Grounding Screw160
Digital System Integration Information162
Wiring Variations163
Wiring Procedure164
Lightning Protection165
Supply Voltage Limiting Requirements166
Process Sealing167
Explosion-Proof Conduit Seal168
Startup169
Overview170
Startup Tasks171
Output Check Procedures172
Constant Current Source Mode Procedure173
Figure 56 - ST 700 Basic Transmitter - Current Loop Test Connections173
Operation_St 700 Basic Transmitter174
Overview174
External Two-Button Operation174
Figure 57 - ST 700 Basic Transmitter - Two-Button Option174
Figure 58 - ST 700 Basic Transmitter - Two-Button Option175
The Standard Display Menu176
Table 35 - ST 700 Standard Transmitter: Standard Display Menus194
Table 36 - ST 700 Standard Transmitter: Standard Display Menus Russian194
Standard Display Abbreviations213
Table 38 - ST 700 Standard Transmitter - Extended Display Menu Russian213
Data Entry214
Table 40 - ST 700 Basic Transmitter - Two-Button Data Entry214
Editing a Numeric Value215
Selecting a New Setting from a List of Choices216
Two Button Operation with no Display Installed217
Zero Adjustment218
Span Adjustment219
Zero Correction220
Changing the Default Failsafe Direction221
Procedure to Establish Failsafe Operation222
Figure 59 - ST 700 Basic Transmitter - Locating the Failsafe and Write Protect Jumpers222
Table 41 - ST 700 Basic Transmitter - HART Failsafe and Write Protect Jumpers222
Monitoring the Standard Displays223
Standard Display224
Figure 60 - ST 700 Basic Transmitter - Standard Display with Process Variable Format224
Maintenance_St 700 Basic Transmitter225
Overview225
Preventive Maintenance Practices and Schedules225
Inspecting and Cleaning Barrier Diaphragms225
Figure 61 - ST 700 Basic Transmitter - DP Transmitter Head Disassembly226
Figure 62 - ST 700 Basic Transmitter - Head Bolt Tightening Sequence227
Table 42 - Head Bolt Torque Values227
Replacing the Communication Module228
Figure 63 - ST 700 Basic Transmitter - PWA Replacement228
Replacing the Meter Body230
Figure 64 - ST 700 Basic Transmitter - Disassembly for Meter Body Replacement230
Figure 65 - ST 700 Basic Transmitter - Hardware Location to Remove the Meter Assembly231
Figure 66 - ST 700 Basic Transmitter - Meter Body Reassembly232
Figure 67 - ST 700 Basic Transmitter - Head Bolt Tightening Sequence232
Calibration_St 700 Basic Transmitter234
Recommendations for Transmitter Calibration234
Calibration Procedures234
Troubleshooting_St 700 Basic Transmitter235
Overview235
Critical Diagnostics Screens235
Fault Conditions and Recommended Corrective Actions - Standard Display236
Table 43 - ST 700 Basic Transmitter - Fault Conditions and Recommended Corrective Actions236
Parts List_St 700 Basic Transmitter237
Overview237
Table 44 - ST 700 Basic Transmitter - Summary List of Recommended Spare Parts237
Figure 68 - ST 700 Basic Transmitter - Angle and Flat Bracket Parts238
Table 45 - ST 700 Basic Transmitter - Angle and Flat Bracket Parts239
Figure 69 - ST 700 Basic Transmitter - Electronic Housing, Display End240
Table 46 - ST 700 Basic Transmitter - Major Assemblies240
Figure 70 - ST 700 Basic Transmitter - Electronic Housing, Terminal Block End241
Figure 71 - ST 700 Basic Transmitter - Major Assemblies242
Figure 72 - ST 700 Basic Transmitter Models STD725, 735, 775 - Refer to Table 45245
Table 48 - ST 700 Basic Transmitter - Parts for STG725, 735, 745, 775, 745 Transmitter Body246
Figure 73 - ST 700 Basic Transmitter - STG735, 745, 775 and STA725, 745 Transmitter Body247
Figure 74 - ST 700 Basic Transmitter - Inline Gauge and Inline Atmospheric Meter Body Bodies248
Table 49 - ST 700 Basic Transmitter - Inline Gauge and Inline Atmospheric Meter Body Parts248
Figure 75 - ST 700 Basic Transmitter - Extended Flange Design249
Figure 76 - ST 700 Basic Transmitter - Flush Flange Design249
Table 50 - ST 700 Basic Transmitter - Flange-Mounted Meter Body Parts249
Figure 77 - ST 700 Basic Transmitter - Pseudo Flange Design250
Figure 78 - ST 700 Basic Transmitter - Remote Seal Diaphragm250
Figure 79 - ST 700 Basic Transmitter - Series 700 Flush Mount Meter Body251
Table 51 - ST 700 Basic Transmitter - Flush Mount Meter Body Parts251
Appendix A - PRODUCT CERTIFICATIONS for the ST 700 Standard and Basic Transmitter252
Glossary271

Honeywell SmartLine ST 700 - Process Sealing

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