STT700 SmartLine
Temperature Transmitter
User’s Manual
34-TT-25-17
Revision 6
November 2020
Honeywell Process Solutions
Copyrights, Notices and Trademarks
© Copyright 2020 by Honeywell, Inc. Revision 6, November 2020
While the information in this document is presented in good faith and believed to be accurate, Honeywell disclaims any implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in the written agreement with and for its customers. In no event is Honeywell liable to anyone for any indirect, special, or consequential damages. The information and specifications in this document are subject to change without notice.
Honeywell, TDC 3000, SFC, SmartLine, PlantScape, Experion PKS, and TotalPlant are registered trademarks of Honeywell International Inc. Other brand or product names are trademarks of their respective owners.
Honeywell Process Solutions
1250 W Sam Houston Pkwy S
Houston, TX 77042
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page ii |
About This Manual
This manual is a detailed how to reference for installing, piping, wiring, configuring, starting up, operating, maintaining, calibrating, and servicing Honeywell’s family of STT700 temperature transmitters. Users who have a Honeywell STT700 SmartLine Temperature Transmitter configured for HART protocol or Honeywell’s Digitally Enhanced (DE) are referred to the
STT700 SmartLine Series HART/DE Option User’s Manual, document number 34-TT-25-18.
The configuration of your transmitter depends on the mode of operation and the options selected for it with respect to operating controls, displays and mechanical installation. This manual provides detailed procedures to assist first-time users, and it further includes keystroke summaries, where appropriate, as quick reference or refreshers for experienced personnel.
To digitally integrate a transmitter with one of the following systems:
•For the Experion PKS, you will need to supplement the information in this document with the data and procedures in the Experion Knowledge Builder.
•For Honeywell’s TotalPlant Solutions (TPS), you will need to supplement the information in this document with the data in the PM/APM SmartLine Transmitter Integration Manual, which is supplied with the TDC 3000 book set. (TPS is the evolution of the TDC 3000).
Release Information:
STT700 SmartLine Temperature Transmitter User Manual, Document # 34-TT-25-17,
Rev.1 |
July 2017 |
1st Release |
Rev.2 |
February 2018 |
FM Approval updates |
Rev.3 |
October 2018 |
CCoE, NEPSI, SAEx approvals added. |
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|
Sensor Wiring Best Practice Recommendations added |
Rev.4 |
December 2018 |
Voltage resistance chart updated. Dimensions added. |
Rev.5 |
July 2019 |
Integral Meter, Head mount Enclosure and DE Start-up fix |
Rev.6 |
November 2020 |
Host / Device nomonclature |
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Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page iii |
References
The following list identifies publications that may contain information relevant to the information in this document.
•STT700 SmartLine Temperature Transmitter Quick Start Installation Guide, Document
# 34-TT-25-19
•STT700 SmartLine Temperature Transmitter HART/DE Option User’s Manual, Document # 34-TT-25-18
•STT700 SmartLine Temperature Field Device Spec (HART), Document # 34-TT-00-05
•STT700 SmartLine Transmitter Safety manual Document # 34-TT-25-20
•MC Toolkit User Manual, MCT404, Document # 34-ST-25-50
•Engineering Meter (EU) User Guide, Document #34-ST-25-18
•STT700 Series Temperature, Transmitter, Agency IS Control Drawing #50133855
•Smart Field Communicator Model STS 103 Operating Guide, Document # 34-ST-11-14 (for use with STT700 DE only)
Patent Notice
The Honeywell STT700 SmartLine Temperature Transmitter family is covered by one or more of the following U. S. Patents: 5,485,753; 5,811,690; 6,041,659; 6,055,633; 7,786,878; 8,073,098; and other patents pending.
Support and Contact Information
For Europe, Asia Pacific, North and South America contact details, refer to the back page of this manual or the appropriate Honeywell Solution Support web site:
Honeywell Corporate |
www.honeywell.com |
Honeywell Process Solutions |
https://www.honeywellprocess.com |
SmartLine Temperature |
https://www.honeywellprocess.com/smartline-temperature.aspx |
Training Classes |
http://www.automationcollege.com |
Telephone and Email Contacts
Area |
Organization |
Phone Number |
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United States and |
Honeywell Inc. |
1-800-343-0228 |
Customer Service |
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Canada |
1-800-423-9883 |
Global Technical Support |
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Global Email |
Honeywell Process |
ask-ssc@honeywell.com |
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Support |
Solutions |
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Page iv |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
Symbol Descriptions and Definitions
The symbols identified and defined in the following table may appear in this document.
Symbol |
Definition |
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ATTENTION: Identifies information that requires special consideration. |
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TIP: Identifies advice or hints for the user, often in terms of performing a |
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task. |
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CAUTION |
Indicates a situation which, if not avoided, may result in equipment or work |
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(data) on the system being damaged or lost, or may result in the inability to |
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properly operate the process. |
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CAUTION: Indicates a potentially hazardous situation which, if not avoided, |
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may result in minor or moderate injury. It may also be used to alert against |
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unsafe practices. |
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CAUTION symbol on the equipment refers the user to the product manual for |
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additional information. The symbol appears next to required information in |
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the manual. |
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WARNING: Indicates a potentially hazardous situation, which, if not avoided, |
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could result in serious injury or death. |
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WARNING symbol on the equipment refers the user to the product manual |
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for additional information. The symbol appears next to required information |
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in the manual. |
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WARNING, Risk of electrical shock: Potential shock hazard where |
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HAZARDOUS LIVE voltages greater than 30 Vrms, 42.4 Vpeak, or 60 VDC |
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may be accessible. |
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ESD HAZARD: Danger of an electro-static discharge to which equipment may |
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be sensitive. Observe precautions for handling electrostatic sensitive |
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devices. |
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Protective Earth (PE) terminal: Provided for connection of the protective |
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earth (green or green/yellow) supply system conductor. |
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Functional earth terminal: Used for non-safety purposes such as noise |
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immunity improvement. NOTE: This connection shall be bonded to |
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Protective Earth at the source of supply in accordance with national local |
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electrical code requirements. |
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Earth Ground: Functional earth connection. NOTE: This connection shall be |
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bonded to Protective Earth at the source of supply in accordance with |
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national and local electrical code requirements. |
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Chassis Ground: Identifies a connection to the chassis or frame of the |
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equipment shall be bonded to Protective Earth at the source of supply in |
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accordance with national and local electrical code requirements. |
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continued |
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Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page v |
Symbol |
Description |
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The Factory Mutual® Approval mark means the equipment has been rigorously |
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tested and certified to be reliable. |
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The Canadian Standards mark means the equipment has been tested and meets |
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applicable standards for safety and/or performance. |
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The Ex mark means the equipment complies with the requirements of the |
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European standards that are harmonized with the 94/9/EC Directive (ATEX |
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Directive, named after the French "ATmosphere EXplosible"). |
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Page vi |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
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Contents |
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1. |
Introduction .................................................................................................................................... |
1 |
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Overview ................................................................................................................................ |
1 |
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Features and Options .............................................................................................................. |
1 |
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Physical Characteristics.................................................................................................. |
2 |
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Functional Characteristics .............................................................................................. |
3 |
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STT700 SmartLine Transmitter Nameplate ........................................................................... |
3 |
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Safety Certification Information............................................................................................. |
4 |
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Transmitter Adjustments ........................................................................................................ |
4 |
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EU Meter Option – HART only ............................................................................................. |
4 |
2. |
Application Design......................................................................................................................... |
5 |
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Overview ................................................................................................................................ |
5 |
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Safety...................................................................................................................................... |
5 |
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Accuracy......................................................................................................................... |
5 |
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Diagnostic Messages ...................................................................................................... |
5 |
3. |
Installation and Startup................................................................................................................... |
9 |
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Installation Site Evaluation..................................................................................................... |
9 |
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Honeywell MC Toolkit........................................................................................................... |
9 |
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Mounting and Dimensions ................................................................................................... |
10 |
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DIN Rail Mounting....................................................................................................... |
10 |
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Mounting Module in Housing ...................................................................................... |
11 |
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Dimensions................................................................................................................... |
13 |
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Spring Loading ............................................................................................................. |
15 |
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Installation Procedure of Standard display for STT700: ...................................................... |
16 |
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Uninstalling/Installing Standard Display for external wiring....................................... |
16 |
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Wiring a transmitter.............................................................................................................. |
20 |
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Loop Power Overview.................................................................................................. |
20 |
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Digital System Integration Information........................................................................ |
22 |
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Wiring Variations ......................................................................................................... |
22 |
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Grounding and Lightning Protection............................................................................ |
23 |
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Input Sensor Wiring ..................................................................................................... |
23 |
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Lightning Protector....................................................................................................... |
25 |
4. |
Startup .......................................................................................................................................... |
29 |
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Overview ...................................................................................................................... |
29 |
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Startup Tasks ................................................................................................................ |
29 |
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Output Check Procedures............................................................................................. |
29 |
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Constant Current Source Mode Procedure ................................................................... |
30 |
5. |
Operation...................................................................................................................................... |
32 |
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Overview .............................................................................................................................. |
32 |
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Configuration Tools.............................................................................................................. |
32 |
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Smart Field Communicator (SFC) for DE Models....................................................... |
32 |
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HART Communicator Model 375, 475 or MC Toolkit FDC for HART 7 Models .... |
33 |
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page vii |
6. |
Maintenance................................................................................................................................. |
35 |
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Overview.............................................................................................................................. |
35 |
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Preventive Maintenance Practices and Schedules................................................................ |
35 |
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Troubleshooting ................................................................................................................... |
35 |
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Troubleshooting with SFC........................................................................................... |
35 |
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Troubleshooting with HART communicator ............................................................... |
37 |
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Recommended Parts............................................................................................................. |
38 |
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Wiring and Installation Drawings ........................................................................................ |
41 |
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Upgrading the firmware....................................................................................................... |
42 |
7. |
Calibration.................................................................................................................................... |
46 |
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Recommendations for transmitter Calibration..................................................................... |
46 |
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Calibration Procedures......................................................................................................... |
46 |
Appendix A. PRODUCT CERTIFICATIONS.................................................................................... |
47 |
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Glossary ............................................................................................................................................... |
62 |
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List of Tables |
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Table 1 – Features and Options.............................................................................................................. |
1 |
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Table 2 |
– Available EU Meter Characteristics ...................................................................................... |
4 |
Table 3 |
– STT700 Diagnostic Messages................................................................................................ |
6 |
Table 4 |
– STT700 Standard Non-Critical Diagnostics Messages.......................................................... |
6 |
Table 5 |
- Dimension table for use with Figure 6 and Figure 7 ............................................................ |
12 |
Page viii |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
List of Figures |
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Figure 1: STT700 Temperature Transmitter device with display module ............................................. |
2 |
Figure 2 – STT700 HART (left) and DE (right) Transmitter module.................................................... |
2 |
Figure 3 – Nameplate on the side of the transmitter............................................................................... |
3 |
Figure 4 –STT700 Model Number Format ............................................................................................ |
3 |
Figure 5 - DIN Rail Mounting.............................................................................................................. |
10 |
Figure 6 - Wall Mounting Dimensions................................................................................................. |
11 |
Figure 7 - Pipe Mounting Dimensions ................................................................................................. |
12 |
Figure 8 – STT700 transmitter module with lightning protection (top) and without (bottom) ............ |
13 |
Figure 9: Housing cover and O-ring..................................................................................................... |
14 |
Figure 10 - Spring Loading and Sensor Assembly............................................................................... |
15 |
Figure 11: : Position of Standard display for external wiring ............................................................. |
16 |
Figure 12: Assembly of Standard display with Bracket ....................................................................... |
17 |
Figure 13: short cable and display assembly....................................................................................... |
17 |
Figure 14: Cable joint fixed in the bracket........................................................................................... |
18 |
Figure 15: Long cable connection with STT Module........................................................................... |
18 |
Figure 16: Positioning of Long cable in the IM Housing..................................................................... |
19 |
Figure 17: : Example of external wiring (Reference only)................................................................... |
19 |
Figure 18 – STT700 with HART Transmitter Operating Ranges ........................................................ |
20 |
Figure 19– STT700 with DE Transmitter Operating Ranges............................................................... |
20 |
Figure 20 –STT700 module terminal connections ............................................................................... |
21 |
Figure 21 – HART/DE Input Wiring Diagram for single sensor connection....................................... |
24 |
Figure 22 – Wiring Diagram for HART Dual Sensor Connections ..................................................... |
24 |
Figure 23 – STT700 with Lightning Protector Dimensions................................................................. |
25 |
Figure 24 – Installation without EU Meter........................................................................................... |
26 |
Figure 25 – Installation with EU Meter................................................................................................ |
27 |
Figure 26 – Installation with Standard Display.................................................................................... |
27 |
Figure 27 – Current Loop Test Connections ........................................................................................ |
30 |
Figure 27: Housing with EU meter ...................................................................................................... |
39 |
Figure 28: Housing without EU meter ................................................................................................. |
39 |
Figure 29: HOUSING WITH STANDARD DISPLAY....................................................................... |
40 |
Figure 30: HOUSING WITHOUT STANDARD DISPLAY .............................................................. |
40 |
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page ix |
This section is an introduction to the physical and functional characteristics of Honeywell’s STT700 SmartLine Temperature Transmitter.
The STT700 SmartLine Temperature Transmitter is available in a variety of models for measuring Thermocouples, RTD, Millivolts, and ohm sensor types. Table 1 lists the protocols, Human-Machine Interface (HMI), materials, approvals, and mounting bracket options for the STT700.
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Table 1 – Features and Options |
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Feature/Option |
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Standard/Available Options |
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Communication Protocols |
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HART version 7 |
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Digitally Enhanced (DE) |
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Human-Machine Interface (HMI) |
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No Display |
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Options |
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Standard Display |
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Calibration |
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Single |
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Approvals (See Appendix A for details.) |
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ATEX, CSA, FM, IECEx, CCoE, NEPSI, SAEx |
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Mounting Brackets |
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Pipe mounting and wall mounting brackets in carbon |
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steel and 316 stainless steel. |
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Integration Tools |
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DD or DTM Hosts such as Experion and FDM |
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Firmware Upgrade |
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SAT tool for firmware upgrade |
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Revision 6 |
STT700 temperature transmitter User’s Manual |
Page 1 |
As shown in Figure 1 and Figure 2, the STT700 is packaged in a single module. The elements in this module are connected to the process sensors, measure the process variables, respond to setup commands and execute the software and protocol for the different temperature measurement types.
Figure 1: STT700 Temperature Transmitter device with display module
Figure 2 – STT700 HART (left) and DE (right) Transmitter module
Page 2 |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
The transmitter measures process temperature and outputs a signal proportional to the measured process variable (PV). Available output communication protocols include 4 to 20mA, Honeywell Digitally Enhanced (DE) and HART protocols.
In addition, a Honeywell Multi-Communication (MC) Toolkit (not supplied with the transmitter) can facilitate setup and adjustment procedures in the case of HART and DE. Certain adjustments can be made through an Experion Station or a Universal Station if the transmitter is digitally integrated with Honeywell’s Experion or TPS/TDC 3000 control system for HART and DE transmitters.
The transmitter nameplate mounted on the side of the transmitter (see Figure 3) lists its model number, physical configuration, electronics options, accessories, certifications, and manufacturing specialties.
Figure 3 – Nameplate on the side of the transmitter
Figure 4 is an example of a typical temperature transmitter nameplate. The model number format consists of a Key Number with several table selections.
Key |
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I |
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II |
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III |
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IV |
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V |
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VI |
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VII |
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VIII |
STT700 |
- |
_ _ |
- |
_ _ _ |
- |
_ _ _ _ _ _ |
- |
_ _ _ _ |
- |
_ _ _ |
- |
_ |
- |
_ _, _ _, _ _ |
- |
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00000 |
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Figure 4 –STT700 Model Number Format
The transmitter type can be identified from the key number. The third letter in the Key number represents this basic transmitter type:
•T = Temperature
For a complete selection breakdown, refer to the appropriate Specification and Model Selection Guide provided as a separate document.
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 3 |
The hazardous area approvals information is listed on the nameplate which, as shown in Figure 3, is located at the bottom of the module. The approvals nameplate contains information and service marks that disclose the transmitter compliance information. Refer to Appendix A of this document for safety certification requirements and details.
For HART and DE you can use the Honeywell MC Toolkit or other third-party hand-held (for HART) to make any adjustments to an STT700 SmartLine Temperature Transmitter.
Any HART 7.0 compliant PC host like Honeywell FDM can be used to configure the device. Honeywell FDM can also configure the STT700 with DE protocol.
Alternately, certain adjustments can be made through the Experion or Universal Station, if the transmitter is digitally integrated with a Honeywell Experion or TPS system.
The STT700 SmartLine Temperature Transmitter can be supplied with the optional EU Meter, see Table 2.
EU Meter inside housing
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Table 2 – Available EU Meter Characteristics |
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EU Meter |
• |
Compatibility for replacement of existing STT250 installations |
(HART only) |
• |
360o rotation in 90o increments |
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• |
Standard units of measurement: °F, °C, °R, K, Ω, mV & % |
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Page 4 |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
This section discusses the considerations involved with deploying a Honeywell STT700 SmartLine Temperature Transmitter in a process system. The following areas are covered:
•Safety
•Input and output data
•Reliability
•Environmental limits
•Installation considerations
•Operation and maintenance
•Repair and replacement
The STT700 SmartLine Temperature Transmitter accurately measures the temperature of a process and reports the measurement to a receiving device like a controller I/O module. Refer to STT700 Specification, 34-TT-03-19, for complete accuracy specifications.
The transmitter standard diagnostics are reported in the two basic categories: critical and non-critical faults. Problems detected as critical diagnostics drive the analog output to the programmed burnout level for HART and DE. Tables 3 and 4, below, list the diagnostics and how faults are handled by the STT700 transmitter. Refer to the Troubleshooting section for further details.
Table 3 show specific diagnostics to the transmitter, exclusive of those associated with HART and DE protocols. HART and DE diagnostic messages are listed and described in the STT700 SmartLine Temperature Transmitter HART/DE Option User Manual, document number 34-TT-25-18.
See Safety Integrity Level (SIL)
STT700 is intended to achieve sufficient integrity against systematic errors by the manufacturer’s design. A Safety Instrumented Function (SIF) designed with this product must not be used at a SIL level higher than the statement, without “prior use” justification by the end user or diverse technology redundancy in the design. Refer to the STT700 Safety Manual, 34-TT-25-20, for additional information. The DE variant of STT700 is not SIL certified.
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 5 |
Table 3 – STT700 Diagnostic Messages
Critical Diagnostics (Failure |
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Description |
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Details |
Conditions) |
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Elec. Mod. Diag Failure |
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Diagnostics failure (like |
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Action: Reset the device. If the problem persists |
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replace the electronics module Note: Select |
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ROM / RAM corrupt |
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“Device Status - Additional Status” to see which |
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etc.) |
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of these conditions are set. |
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Elec. Mod. DAC Failure |
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Failure related to DAC |
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Action: Reset the device. If problem persist, |
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replace the electronics module. |
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which regulates 4-20mA |
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Note: Select “Device Status - Additional Status” |
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loop |
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to see which of these conditions are set. |
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Sensor Input Failure |
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"Failure in sensing section. Any of the following |
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conditions can cause this failure: |
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1..Input 1 Fault |
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2. Input 2 Fault. |
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Input sensor may be |
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Check the sensor input connections. |
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open / short / out of |
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3. Suspect Input. |
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range |
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Check sensor and connections. If the |
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connections are ok, and problem persists, |
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replace the electronics module board |
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Note: Select “Device Status - Additional Status” |
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to see which of these conditions are set |
Char/Cal Data Corrupt |
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Characterization / Calibration data is corrupted |
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Factory calibration data |
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or missing. |
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is corrupted |
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Replace device if error persists upon power |
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cycle |
Config Data corrupt |
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NVM data corrupted |
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Action: Power cycle the device. If the problem |
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persists, replace the electronics module. |
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Table 4 – STT700 Standard Non-Critical Diagnostics Messages
Non-Critical Diagnostics |
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Description |
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Details |
(Warning Conditions) |
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CT Out of Range |
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Core Temperature out of range (-36°C to |
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MCU temperature of the |
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112.5°C). |
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device is out of range |
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If it is certain that the reading is in error, then |
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contact the vendor. |
No Factory Calibration |
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Factory calibration data is |
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The transmitter has not been calibrated by the |
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not available, device is not |
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factory. Contact the vendor. |
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factory calibrated |
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PV Out of Range |
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Loop PV is out of configured URV and LRV. |
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Process value measured is |
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Check your process temperature. Adapt the |
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out of range |
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span. |
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Check range and, if required, replace |
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transmitter with one that has a wider range. |
CJ Out of Limits SV Bad |
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Cold junction sensor |
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The ambient temperature measured is out of |
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temperature or device |
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the transmitter specifications |
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terminal temperature is out |
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(-40°C to 85°C). |
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of limits (-40°C to 85°C is |
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Take steps to isolate the device from the |
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the range) |
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temperature source. |
Page 6 STT700 Temperature Transmitter User’s Manual Revision 6
Sensor1 excess LRV |
Applied Input 1 value and |
This non critical flag will be set when |
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correct |
measured value differ by |
difference between applied Input 1 LRV value |
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more than 1.5% span at |
and measured value exceeds 1.5% of span. |
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low calibration point |
Perform Reset correct. |
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Sensor1 excess |
Applied Input 1 value and |
This non critical flag will be set when |
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URV correct |
measured value differ by |
difference between applied Input 1 URV value |
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more than 1.5% span at |
and measured value exceeds 1.5% of span |
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high calibration point |
Perform Reset correct. |
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Suspect Input |
MCU reference voltages |
MCU reference voltages are beyond limits and |
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are beyond limits and |
hence inputs measured may not be correct. |
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hence inputs measured |
Replace the sensor based on Input 1, Input 2 |
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may not be correct |
measurement suspect. |
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Fixed Current Mode |
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Output current is fixed and not varying as per |
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input. Loop current mode is disabled or Loop |
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The 4-20mA loop is put in |
Test is active. |
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fixed current mode and is |
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not following the PV value |
Enable loop current mode if it is disabled or |
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exit the Loop Test mode if active to return to |
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normal operation. |
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Input1 Fault |
Input1 may be open/short |
There is a problem with the Input 1 sensor. |
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Verify sensor connections and configuration. |
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Input2 Fault |
Input2 may be open/short |
There is a problem with the Input 2 sensor. |
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Verify sensor connections and configuration. |
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Analog Output Saturated |
This status is set when loop |
Calculated analog output is either above or |
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current is set to out of 4-20 |
below the specified loop current limits. The |
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mA (generally when PV is |
transmitter input is not in specified range. |
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out of range) |
Check the transmitter input. |
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Excess Delta Detect |
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This will be set when delta value exceeds |
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Sensor 1 and Sensor 2 |
delta limit. When Excess Delta Alarm is |
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measured values differ by |
disabled and device is in non-redundant mode, |
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more than a user defined |
this status indicates that the difference |
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threshold |
between two sensor inputs has crossed the |
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applicable delta limit |
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ADC Fault |
ADC reference voltages |
Controller ADC fault. Replace device if error |
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are beyond working correct |
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persists upon power cycle. |
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limits |
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Sensor2 excess LRV |
Applied Input 2 value and |
This will be set when difference between |
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correct |
measured value differ by |
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applied Input 2 LRV value and measured |
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more than 1.5% span at |
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value exceeds 1.5% of span |
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low calibration point |
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Sensor2 excess |
Applied Input 2 value and |
This will be set when difference between |
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URV correct |
measured value differ by |
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applied Input 2 URV value and measured |
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more than 1.5% span at |
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value exceeds 1.5% of span |
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high calibration point |
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Input1 Out Of Range |
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Input 1 temperature is greater than Sensor 1 |
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Measured value of Sensor1 |
URL or less than Sensor 1 LRL |
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is out of range |
Set when the input at first sensor is either |
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under range or over range |
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 7 |
Input2 Out Of Range |
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Input 2 temperature is greater than Sensor 2 |
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Measured value of Sensor2 |
URL or less than Sensor 2 LRL. |
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is out of range |
Set when the input at second sensor is either |
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under range or over range |
Watchdog reset |
Watchdog has reset (it may |
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be due to FW failure or HW |
Controller Watchdog has reset |
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failure) |
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Supply Voltage Fault |
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This is set when one of the supply voltages |
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MCU or DAC reference |
(DAC loop / MCU) in the device is outside its |
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voltages are beyond limits |
specification limits. Check the transmitter |
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supply voltage |
SIL Diagnostics |
RAM / NVM database |
Advance diagnostics data is corrupted. Power |
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corrupt |
cycle the device |
Page 8 |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
Evaluate the site selected for the STT700 SmartLine transmitter installation with respect to the process system design specifications and Honeywell’s published performance characteristics for your particular model and sensor selection. Some parameters that you may want to include in your site evaluation are:
•Environmental Conditions: o Ambient temperature o Relative humidity
•Potential Noise Sources:
o Radio frequency interference (RFI) o Electromagnetic interference (EMI)
•Vibration Sources o Pumps
o Motorized system devices (e.g., pumps) o Valve cavitation
•Process Parameters o Temperature
o Maximum sensor input ratings
In preparation for post-installation processes, refer to the MC Toolkit User Manual (MCT404), Document # 34-ST-25-50, for device operation and maintenance information.
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 9 |
If the STT700 is to be installed on DIN rail option then the main considerations are electrical connections and mechanical fixing. Electrical connections are identical to the bench test instructions except that thermocouple wire is likely to be used with thermocouples. Mechanical fixing of the module is by means of the snap-in DIN rail clips which are screwed to the bottom lugs of the module.
Figure 5 - DIN Rail Mounting
The DIN rail needs to be connected to Earth Ground per Section 3.4 below. It is generally required by regional wiring, safety and installation codes that these units be mounted in a suitable enclosure such as a metal cabinet or box which is locally connected to Earth Ground.
Page 10 |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
The STT700 module can be installed in a variety of housings suitable for field mounting (2” or 50mm pipe mount), direct head mounting, or wall mounting.
Ensure that the installation location is suitable for reliable transmitter operation (e.g. for high temperature applications, a thermowell extension is recommended to minimize failure rates due to high ambient temperatures near the transmitter).
ATTENTION:
THIS PRODUCT IS SUPPLIED WITH PLASTIC DUST PLUGS IN THE
CONDUIT/CABLE GLAND ENTRIES. IT IS THE USER’S RESPONSIBILITY TO
PROVIDE CABLE GLANDS, ADAPTORS AND/OR BLANKING PLUGS SUITABLE
FOR THE ENVIRONMENT IN WHICH THIS PRODUCT IS INSTALLED. WHEN
INSTALLED IN A HAZARDOUS LOCATION THE CABLE GLANDS, ADAPTORS
AND/OR BLANKING PLUGS SHALL ADDITIONALLY BE SUITABLE FOR THE
HAZARDOUS LOCATION, THE PRODUCT CERTIFICATION AND ACCEPTABLE
TO THE AUTHORITY HAVING JURISDICTION FOR THE INSTALLATION.
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Field Mount Housing with Meter |
Field Mount Housing without Meter |
Field Mount Housing with and |
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without Meter |
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Figure 6 - Wall Mounting Dimensions
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 11 |
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Field Mount Housing with Meter |
Field Mount Housing without Meter |
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Field Mount Housing with and |
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without Meter |
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Figure 7 - Pipe Mounting Dimensions |
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Table 5 - Dimension table for use with Figure 6 and Figure 7 |
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Dimensions |
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Aluminum (field mount housing) |
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A |
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B |
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Without integral meter |
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70 mm [2.76 inch] |
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120,8 mm [4.76 inch] |
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With integral meter |
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127 mm [5.00 inch] |
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210,8 mm [8.30 inch] |
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Page 12 |
STT700 Temperature Transmitter User’s Manual |
Revision 6 |
Figure 8 – STT700 transmitter module with lightning protection (top) and without (bottom)
Revision 6 |
STT700 Temperature Transmitter User’s Manual |
Page 13 |