Honeywell SLG 700 User Manual

SLG 700

SmartLine Level Transmitter

Guided Wave Radar

User’s Manual

34-SL-25-11

Revision 9.0

July 2020

Honeywell Process Solutions

Copyrights, Notices and Trademarks

© Copyright 2020 by Honeywell International Revision 9.0, July 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, TDC3000, 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

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About This Manual

This manual is a detailed how to reference for installing, wiring, configuring, starting up, operating, maintaining, calibrating, and servicing Honeywell’s family of SLG 700 SmartLine Guided Wave Radar Level Transmitters. Users who have a Honeywell SLG 700 SmartLine

Guided Wave Radar Level Transmitter configured for HART protocol are referred to the

SLG 700 Series HART Option User’s Manual, Document #34-SL-25-06. Users who have a Honeywell SLG 700 SmartLine Guided Wave Radar Level Transmitter configured for Fieldbus operation are referred to the SLG 700 Series FoundationTM Fieldbus Option User’s Manual, Document #34-SL-25-07.

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).

Revision History

SLG 700 SmartLine Level Guided Wave Radar Transmitter User’s Manual,

Document #34-SL-25-11

Rev. 1.0	March 2015	First release
Rev. 2.0	April 2015	Updates to troubleshooting and Display menus
Rev. 3.0	June 2015	Security Considerations and Vulnerability added.
Rev. 4.0	June 2016	Updates for the R101 release. Including SLG726.
Rev. 5.0	July 2016	Display menus updated.
Rev. 6.0	December 2016	False Echo suppression, improved interface thickness
Rev. 7.0	February 2017	Troubleshooting section and Fieldbus updates
Rev. 8.0	December 2017	Saturated Steam application (R200)
Rev. 9.0	July 2020	approvals update (INMETRO)

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References

The following list identifies publications that may contain information relevant to the information in this document.

SLG 700 SmartLine Guided Wave Radar Level Transmitter Quick Start Guide,

Document #34-SL-25-04

SLG 700 SmartLine Guided Wave Radar Level Transmitter Safety Manual,

Document #34-SL-25-05

SLG 700 SmartLine Guided Wave Radar Level Transmitter HART Option Manual, Document #34-SL-25-06

SLG 700 SmartLine Level Transmitter Guided Wave Radar FOUNDATION Fieldbus Option Manual, Document #34- SL-25-07

SLG 700 SmartLine Level Transmitter Product Specification Document #34-SL-03-03

Patents

The Honeywell SLG 700 SmartLine Guided Wave Radar Level Transmitter family is covered by U. S. Patents 9329072, 9329073, 9476753 and 9518856 and 9329074, 9574929, 9618612, 9711838 and their foreign equivalents 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 Support web site:

Honeywell Corporate	www.honeywell.com
Honeywell Process Solutions	https://www.honeywellprocess.com/*
Honeywell SmartLine Level	https://www.honeywellprocess.com/smartline-level-transmitter.aspx

Telephone and Email Contacts

	Area	Organization	Phone Number
	United States and	Honeywell Inc.	1-800-343-0228	Customer Service
	Canada		1-800-423-9883	Global Technical Support
	Global Email	Honeywell Process	[e-mail]
	Support	Solutions

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Symbols Descriptions and Definitions

The following symbols may appear in this document.

Symbol	Definition
	ATTENTION: Identifies information that requires special consideration.
	TIP: Identifies advice or hints for the user, often in terms of performing a
	task.
CAUTION	Indicates a situation which, if not avoided, may result in equipment or
	work (data) on the system being damaged or lost, or may result in the
	inability to properly operate the process.
	CAUTION: Indicates a potentially hazardous situation which, if not
	avoided, may result in minor or moderate injury. It may also be used to
	alert against unsafe practices.
	CAUTION symbol on the equipment refers the user to the product manual
	for additional information. The symbol appears next to required
	information in the manual.
	WARNING: Indicates a potentially hazardous situation, which, if not
	avoided, could result in serious injury or death.
	WARNING symbol on the equipment refers the user to the product
	manual for additional information. The symbol appears next to required
	information in the manual.
	WARNING, Risk of electrical shock: Potential shock hazard where
	HAZARDOUS LIVE voltages greater than 30 Vrms, 42.4 Vpeak, or 60
	VDC may be accessible.
	ESD HAZARD: Danger of an electro-static discharge to which equipment
	may be sensitive. Observe precautions for handling electrostatic sensitive
	devices.
	Protective Earth (PE) terminal: Provided for connection of the protective
	earth (green or green/yellow) supply system conductor.
	Functional earth terminal: Used for non-safety purposes such as noise
	immunity improvement. Note: This connection shall be bonded to
	Protective Earth at the source of supply in accordance with national local
	electrical code requirements.
	Earth Ground: Functional earth connection. Note: This connection shall
	be bonded to Protective Earth at the source of supply in accordance with
	national and local electrical code requirements.
	Chassis Ground: Identifies a connection to the chassis or frame of the
	equipment shall be bonded to Protective Earth at the source of supply in
	accordance with national and local electrical code requirements.
	The Factory Mutual® Approval mark means the equipment has been
	rigorously tested and certified to be reliable.

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Symbol	Definition
	The Canadian Standards mark means the equipment has been tested
	and meets applicable standards for safety and/or performance.
	The Ex mark means the equipment complies with the requirements of the
	European standards that are harmonized with the 2014/68/EU Directive
	(ATEX Directive, named after the French "ATmosphere EXplosible").

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		Contents
1	Introduction ..........................................................................................................		1
	1.1	Overview.................................................................................................................................	1
	1.2	Transmitter Models .................................................................................................................	1
	1.3	Transmitter Components ........................................................................................................	1
	1.3.1	Overview of components ....................................................................................................	1
	1.3.2	Electronics Housing ............................................................................................................	2
	1.3.3	Sensor Housing ..................................................................................................................	3
	1.3.4	Process Connector .............................................................................................................	3
	1.3.5	Probe ..................................................................................................................................	4
	1.4	Communicating with the Transmitter ......................................................................................	6
	1.4.1	4-20 mA HART ..................................................................................................................	6
	1.4.2	FOUNDATIONTM Fieldbus (FF) ..........................................................................................	8
	1.4.3 DTM-based tools and Experion ..........................................................................................		9
	1.5	SLG 700 Transmitter nameplate ..........................................................................................	11
	1.6	Transmitter Model Number Description................................................................................	13
	1.7	Safety Certification Information ............................................................................................	13
	1.7.1 Safety Integrity Level (SIL) ...............................................................................................		13
	1.8	Security Considerations........................................................................................................	14
	1.9	Measurement Options Licensing ..........................................................................................	14
2	Radar Level Measurement.................................................................................		15
	2.1	Overview...............................................................................................................................	15
	2.2	Theory of Operation..............................................................................................................	15
	2.2.1 TDR for Interface and Flooded Measurements ................................................................		17
	2.3	Signal processing configuration............................................................................................	18
	2.3.1	Amplitude Tracking ...........................................................................................................	19
	2.3.2	Full-tank Detection............................................................................................................	19
	2.3.3 Maximum Fill Rates, Latching and Timeouts....................................................................		20
	2.4	Signal Interferences and background echoes ......................................................................	21
	2.4.1 Field and Obstacle background........................................................................................		21
	2.4.2 Static and Dynamic backgrounds .....................................................................................		21
	2.4.3 Accuracy and measurement range specifications............................................................		22
	2.5	Process Applications ............................................................................................................	28
	2.5.1	Single Liquid .....................................................................................................................	28
	2.5.2	Two Liquid Applications ....................................................................................................	28
	2.5.3	Low Dielectric Applications...............................................................................................	30
	2.5.4	Steam Boiler Applications.................................................................................................	31
	2.6	Process Condition Considerations .......................................................................................	32
	2.6.1	Turbulence........................................................................................................................	32
	2.6.2	Foam or Emulsions...........................................................................................................	32
	2.6.3	FEP Probe ........................................................................................................................	32

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	2.7	Container Considerations......................................................................................................		33
	2.7.1		Shapes ..............................................................................................................................	33
	2.7.2 Materials (plastic vs. metal)...............................................................................................			33
	2.8	Blocking distance high and blocking distance low guidance ................................................		34
	2.8.1 Blocking distance high (BDH) guidance............................................................................			34
	2.8.2 Blocking distance low (BDL) guidance..............................................................................			34
	2.8.3 Blocking Distance, Full Tank Detection and Latching modes...........................................			34
3	Transmitter Installation.......................................................................................			36
	3.1	Preparation............................................................................................................................		36
	3.1.1		Installation sequence ........................................................................................................	36
	3.1.2		Tools..................................................................................................................................	37
	3.2	Mechanical Installation..........................................................................................................		38
	3.2.1 Check for correct probe dimensions and strength ............................................................			38
	3.2.2 Accuracy and measuring range specifications..................................................................			38
	3.2.3		Trim the probe length ........................................................................................................	47
	3.2.4		Attach/assemble the probe ...............................................................................................	48
	3.2.5 Centering Disks and configured probe length...................................................................			61
	3.2.6		Mounting the transmitter ...................................................................................................	67
	3.2.7		Suitable mounting position ................................................................................................	73
	3.2.8		Optimum Operating Temperature .....................................................................................	74
	3.2.9		Temperature requirements................................................................................................	75
	3.2.10		Mounting on a non-metallic container ...........................................................................	83
	3.2.11		Rotate transmitter housing ............................................................................................	86
	3.2.12		Secure the probe...........................................................................................................	86
	3.2.13		Install conduit entry plugs and adapters .......................................................................	89
	3.2.14		Flange pressure ratings ................................................................................................	90
	3.2.15		Material Exposed to Tank Atmosphere.........................................................................	90
	3.3	Electrical Installation .............................................................................................................		91
	3.3.1		Wiring a transmitter ...........................................................................................................	91
	3.3.2 HART / 4-20mA Voltage Operating Ranges .....................................................................			91
	3.3.3		Terminal Connections .......................................................................................................	93
	3.3.4		FOUNDATION Fieldbus....................................................................................................	94
	3.3.5		Wiring Procedure...............................................................................................................	94
	3.3.6		Lightning Protection ..........................................................................................................	95
	3.3.7 Supply Voltage Limiting Requirements .............................................................................			95
	3.3.8		Process Sealing ................................................................................................................	95
	3.3.9		Explosion-Proof Conduit Seal ...........................................................................................	95
4	Operating the Transmitter ..................................................................................			96
	4.1	User interface options ...........................................................................................................		96
	4.1.1 Transmitter advanced displays with buttons .....................................................................			96
	4.1.2 DTM or DD – HART and FF..............................................................................................			96
	4.2	Three-Button Operation ........................................................................................................		97
	4.2.1 Three-button operation without display.............................................................................			97
	4.2.2		Menu Navigation ...............................................................................................................	99
	4.2.3		Data Entry .........................................................................................................................	99
	4.2.4 Editing a Numeric Value..................................................................................................			100
	4.2.5 Selecting a new setting from a list of choices .................................................................			100

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4.3	The Advanced Display Menu..............................................................................................	101
4.3.1	Correlation Model Recalculation.....................................................................................	102
4.4	Monitoring the Advanced Display .......................................................................................	120
4.4.1	Advanced Displays .........................................................................................................	120
4.4.2 Button operation during monitoring ................................................................................		122

4.5Changing the Failsafe Direction and Write Protect Jumpers (Including Simulation mode) 123

4.5.1 Procedure to Establish Failsafe Operation.....................................................................

123

5 Maintenance ....................................................................................................		126
5.1	Overview.............................................................................................................................	126
5.2	Preventive Maintenance Practices and Schedules ............................................................	126
5.3	Procedures .........................................................................................................................	129
5.3.1	Output Check Procedures ..............................................................................................	129
5.3.2 Constant Current Source Mode Procedure ....................................................................		130
5.3.3 Replacing the Terminal Block.........................................................................................		131
5.3.4 Replacing the Display Assembly ....................................................................................		131
5.3.5 Replacing the Communication Module...........................................................................		131
5.4	How to replace the Sensor Housing ...................................................................................	132
5.4.1	Tools required.................................................................................................................	134
5.4.2	Hazardous Locations ......................................................................................................	140
5.4.3 Appendix: Reconciling Model Numbers..........................................................................		140
5.5	Replacing the Wire Probe...................................................................................................	142
5.5.1	Tools required.................................................................................................................	142
5.5.2	Procedures .....................................................................................................................	143
5.6	Trimming Coaxial Probes ...................................................................................................	147
5.6.1	Tools required.................................................................................................................	147
5.6.2	Procedure .......................................................................................................................	147
5.7	Saturated Steam Probe Installation....................................................................................	150
5.7.1	Tools required.................................................................................................................	150
5.7.2	Procedure .......................................................................................................................	150

6 Troubleshooting ...............................................................................................		154
6.1	Error Messages ..................................................................................................................	154
6.1.1	Diagnostics .....................................................................................................................	154
6.2	Diagnosing SLG720 Coaxial Probe misassembly..............................................................	157

7	Parts List..........................................................................................................		161
	7.1	Overview.............................................................................................................................	161
8	Glossary...........................................................................................................		162

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9 Appendix Certifications.....................................................................................		165
9.1	Safety Instrumented Systems (SIS) Installations................................................................	165
9.2	European Directive Information (EU) ..................................................................................	165
9.3	Hazardous Locations Certifications ....................................................................................	166
9.4	Marking ATEX Directive ......................................................................................................	171

9.5Conditions of Use for Ex Equipment, “Hazardous Location Equipment” or "Schedule of

Limitations" ......................................................................................................................................		172
9.6	Control Drawing...................................................................................................................	174
9.7	China RoHS ........................................................................................................................	178
10 Security ............................................................................................................		179
10.1	How to report a security vulnerability ..................................................................................	179

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List of Figures
Figure 2-1: Components of the Level transmitter ...................................................................................	2
Figure 2-2: Example of HART connection RL ........................................................................................	7
Figure 2-3: Example of FF connection ...................................................................................................	8
Figure 2-4: Example of a FF network ...................................................................................................	11
Figure 2-5: Transmitter nameplate example ........................................................................................	12
Figure 2-6: Standard SLG 700 Model Number.....................................................................................	13
Figure 2-7: Safety certification example ...............................................................................................	13
Figure 2-1: GWR measurement ...........................................................................................................	16
Figure 2-2: Sample Echo Curve ...........................................................................................................	17
Figure 2-3: Interface measurement ......................................................................................................	18
Figure 2-4 Radar Impulse Reflection model.........................................................................................	19
Figure 2-5: Upper transition zone length and minimum blocking distance high (BDH) and minimum
blocking distance low (BDL) for coax probes in water..........................................................................	23
Figure 2-6: Upper transition zone length and minimum blocking distance high (BDH) and minimum
blocking distance low (BDL) for coax probes in oil...............................................................................	23
Figure 2-7: Transition zone lengths and minimum blocking distance high (BDH) for single lead probes
in water. ................................................................................................................................................	24
Figure 2-8: Transition zone lengths and minimum blocking distance high (BDH) for single lead (i.e.
rod and rope) probes in oil....................................................................................................................	25
Figure 2-9 Minimum blocking distances, steam application for a threaded HTHP process connector 25
Figure 2-10 Minimum blocking distance, steam application for a flanged HTHP process connector ..	26
Figure 2-11: Two-liquids Flooded.........................................................................................................	28
Figure 2-12: Two-liquids non-flooded...................................................................................................	29
Figure 2-13 Typical Echo steam application echo with vapor reference rod........................................	31
Figure 2-14: Top vertical and angled mounting....................................................................................	33
Figure 3-1 SLG720 probe dimensions, mm [in]....................................................................................	40
Figure 3-2: SLG720 FEP probe dimensions, mm [in]...........................................................................	41
Figure 3-3: SLG726 Threaded process connection probe dimensions; mm [in]..................................	42
Figure 3-4 SLG726 Flanged process connection probe dimensions; mm [in] .....................................	43
Figure 3-5: SLG726 Saturated steam application threaded process connection probe dimensions; mm
[in] .........................................................................................................................................................	44
Figure 3-6: SLG726 Saturated steam application flanged process connection probe dimensions; mm
[in] .........................................................................................................................................................	44
Figure 3-7: Example bending torque values.........................................................................................	47
Figure 3-8: Drill 6-mm diameter hole at the position shown on the coaxial outer conductor. ..............	48
Figure 3-9: Rod probe assembly ..........................................................................................................	49
Figure 3-10: SLG726 flanged process connection, probe nut installation position, mm [in] ................	50
Figure 3-11: Wire probe assembly .......................................................................................................	51
Figure 3-12: SLG720 Coaxial probe assembly (single outer tube depicted) .......................................	54
Figure 3-13: SLG720 Coaxial probe assembly (single outer tube depicted) .......................................	54
Figure 3-14: SLG726 Coaxial probe assembly ....................................................................................	59

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Figure 3-15 Saturated steam application rod probe assembly ............................................................	60
Figure 3-16: Saturated steam application coaxial probe assembly .....................................................	60
Figure 3-17: Recommended location of holes for rod probes..............................................................	63
Figure 3-18: Centering disks for wire and rod probes..........................................................................	64
Figure 3-19: Centering disks for FEP coated wire and rod probes......................................................	64
Figure 3-20: Probe length definition for rod probes using a centering disk .........................................	67
Figure 3-21: Flanged SLG720 Transmitter, mm [in] ............................................................................	67
Figure 3-22: Threaded (NPT ¾", 1", 1½", 2") SLG720 Transmitter, mm [in].......................................	68
Figure 3-23: Threaded (BSP/G ¾”, 1”, 1½”) SLG720 Transmitter, mm [in].........................................	69
Figure 3-24: Flanged SLG726 transmitter, mm [in] .............................................................................	70
Figure 3-25: Threaded (NPT 1½", 2”) SLG726 transmitter, mm [in]....................................................	71
Figure 3-26: Threaded (BSP/G 1½") SLG726 transmitter, mm [in] .....................................................	72
Figure 3-27: Mounting position ............................................................................................................	73
Figure 3-28: SLG720 temperature limits..............................................................................................	75
Figure 3-29: SLG726 temperature limits..............................................................................................	76
Figure 3-30: SLG726 Maximum pressure based on maximum operating temperature.......................	76
Figure 3-31: Flanged tank connection .................................................................................................	78
Figure 3-32: Flange mounting..............................................................................................................	79
Figure 3-33: Oversized nozzle configuration .......................................................................................	80
Figure 3-34: Threaded tank connection ...............................................................................................	81
Figure 3-35: Tank roof mounting using threaded connection ..............................................................	81
Figure 3-36: Bypass installation...........................................................................................................	82
Figure 3-37: Mounting on a non-metallic vessel ..................................................................................	83
Figure 3-38: Mounting in concrete silos ...............................................................................................	84
Figure 3-39: Remote mount .................................................................................................................	85
Figure 3-40: Rotate transmitter housing ..............................................................................................	86
Figure 3-41: Anchoring wire probes.....................................................................................................	87
Figure 3-42: Wire probe slack..............................................................................................................	87
Figure 3-43: Anchoring coaxial probes ................................................................................................	88
Figure 3-44: Transmitter operating ranges ..........................................................................................	91
Figure 3-45: HART 3-Screw Terminal Board and Grounding Screw...................................................	93
Figure 4-1: Three-Button Option ..........................................................................................................	98
Figure 4-2: Advanced Display Formats with the Process Variable....................................................	120
Figure 4-3: Locating the Failsafe and Write Protect Jumpers............................................................	124
Figure 5-1: Current Loop Test Connections.......................................................................................	130
Figure 5-2: Electronic Housing Components .....................................................................................	131
Figure 5-3: Sensor Housing ...............................................................................................................	132
Figure 5-45-5: Part Number and Date Code (D/C) label on bottom of Terminal PCBA assembly....	134
Figure 5-6: Location of sensor housing and attachment set screws..................................................	135
Figure 5-7: Communications Housing Assembly...............................................................................	136

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Figure 5-8: Rook Assembly ................................................................................................................		137
Figure 5-9: - Sensor ribbon cable ......................................................................................................		138
Figure 5-10: Location of RF-connector at bottom of sensor housing .................................................		139
Figure 5-11- Model Number Mismatch Critical Error..........................................................................		141
Figure 5-12	- Reconcile Model Numbers feature ...............................................................................	141
Figure 5-13	- No Trimming Zones on Outer Tube and Inner Rod ......................................................	148
Figure 5-14	- Drill Hole Position on Outer Tube .................................................................................	149
Figure 5-15	- Spacer and Locking Pin Installation..............................................................................	149
Figure 5-16	- SLG726 flanged process connection, probe nut installation position, mm [in].............	151
Figure 5-17	- Saturated steam application rod probe assembly ........................................................	152
Figure 5-18	- Saturated steam application coaxial probe assembly ..................................................	153

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List of Tables
Table 2-1: Features and Options ...........................................................................................................	1
Table 2-2: Available SmartLine GWR display characteristics................................................................	3
Table 2-3: Probe Selection.....................................................................................................................	4
Table 2-1: Blocking Distance High.......................................................................................................	26
Table 3-1: Installation sequence ..........................................................................................................	36
Table 3-2: Mechanical installation sequence .......................................................................................	38
Table 3-3: Sensor Details – All Models................................................................................................	39
Table 3-4: Minimum blocking distances and transition zones for the various probe types. ................	39
Table 3-5: Minimum blocking distances and Minimum distance to inlet or surface with DC corrected
level for the Saturated Steam Application............................................................................................	39
Table 3-6: Maximum measurement range for each probe type versus dielectric constant. ................	39
Table 3-7: Tensile load limits for flexible probe....................................................................................	45
Table 3-8: Rigid (i.e. rod and coaxial) probe mounting angle limits.....................................................	45
Table 3-9: Rod probe bending torque limits (all lengths) .....................................................................	45
Table 3-10: Coaxial probe bending load limits (all lengths) .................................................................	45
Table 3-11: Recommended probe diameter and material of construction...........................................	61
Table 3-12: Centering disk determination from pipe size and schedule..............................................	65
Table 3-13: Centering disk dimensions................................................................................................	65
Table 3-14: Probe length for different probe types ..............................................................................	66
Table 3-15: Minimum recommended distance to container wall and obstacles (mm).........................	73
Table 3-16: SLG726 Maximum pressure based on maximum operating temperature in tabular form 77
Table 3-17: SLG720: Recommended nozzle dimensions ...................................................................	79
Table 3-18: SLG720 bypass and stillwell recommended diameters....................................................	82
Table 3-19: SLG726 bypass and stillwell recommended diameters....................................................	83
Table 3-20: Conduit entry plug installation...........................................................................................	89
Table 3-21: Conduit adapter installation ..............................................................................................	89
Table 4-1: Three-Button Option Functions...........................................................................................	99
Table 4-2: Three-Button Data Entry...................................................................................................	100
Table 4-3: Advanced Display Main Menu Structure ..........................................................................	101
Table 4-4: Correlation Model Recalculation.......................................................................................	102
Table 4-5: Display Config sub-menu..................................................................................................	103
Table 4-6: Basic Configuration sub-menu..........................................................................................	105
Table 4-7: Advanced Config sub-menu .............................................................................................	109
Table 4-8: Monitor sub-menu.............................................................................................................	114

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Table 4-9: Advanced Displays with PV Format Display Indications...................................................	121
Table 4-10: HART Failsafe and Write Protect Jumpers .....................................................................	125
Table 4-11: FOUNDATION Fieldbus Simulation and Write Protect Jumpers ....................................	125
Table 5-1: Probe length calculated from spare probe model number................................................	145
Table 6-1: SLG 700 Standard Diagnostics Messages .......................................................................	155
Table 7-1: Parts ..................................................................................................................................	161

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1 Introduction

1.1 Overview

The SLG 700 Guided Wave Radar SmartLine transmitter is an electronic instrument designed to measure levels of liquid and solid materials. Guided Wave Radar (GWR) transmitters use time domain reflectometry with radar pulses guided by a metal probe and reflected off a product surface to determine levels in tanks. In comparison to other level measurement technologies, GWR provides a highly-accurate, cost-effective, reliable measurement over a wide range of process conditions.

1.2 Transmitter Models

The SmartLine Guided Wave Radar (GWR) transmitter is available as a family of SLG72X models for liquid applications. The pressure and temperature application ranges for each model are summarized in Table 2-1.

Table 2-1: Features and Options

	Range		Model
	Standard Temperature Liquid Level Measurement		SLG720
	(-40 to 200°C/-1 to 40 bar)
	High Temperature / High Pressure Liquid Level Measurement		SLG726
	(-60 to 450°C /-1 to 400 bar)

Each model is available with a range of probes, wetted materials, and accessories to suit most applications.

1.3 Transmitter Components

Overview of components

As shown in

Figure 2-1 the transmitter consists of:

•Electronics housing containing o Display module (optional) o Buttons module (optional) o Communications module

o Electrical terminal block assembly

•Sensor housing

•Process connector

•Probe, also known as a waveguide

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These components are described below.

Additional mounting and optional accessories are available, such as centering discs for probes. For list of all options and accessories please refer to the purchasing specifications, which is available, here: https://www.honeywellprocess.com/en- US/explore/products/instrumentation/process-level-sensors/Pages/smartline-level- transmitter.aspx.

Figure 2-1: Components of the Level transmitter

Electronics Housing

The Electronics Housing contains these components. All components are replaceable in the field.

Terminal Assembly: Provides connection points for the measurement signal and

power. Different terminal modules are required for HART and FOUNDATIONTM Fieldbus versions of the transmitters. The terminal is polarity insensitive. Lightning protection is optional.

Communications module: The platform provides separate electronics modules for

HART and FOUNDATIONTM Fieldbus versions of the transmitters. The communication board for a certain communication protocol always requires terminal assembly for the same type of communication. Descriptions of the communications protocols are in the Glossary.

Optional Display: Table 2-2 lists features of the available display module. Optional Buttons: Refer to Figure 4-1: Three-Button Option for more information.

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	Table 2-2: Available SmartLine GWR display characteristics
Advanced		• 360° rotation in 90° increments
Display		• Three configurable screen formats with configurable rotation timing
		o Large process variable (PV)
		o PV with bar graph
		o PV with trend (1-999hrs, configurable)
		• Echo stem plot for checking measurement accuracy
		• Eight Screens with 3-30 sec. rotation timing and the use of 3-buttons for
		configuration.
		• Standard and custom engineering units
		• Diagnostic alerts and diagnostic messaging
		• Multiple language support options:
		o Option 1: EN, FR, GE, SP, RU, TU, IT
		o Option 2: EN, CH, JP (Kanji)
		• Supports 3-button configuration and calibration
		• Supports transmitter messaging and maintenance mode indications

To make changes to the transmitter setup or configuration without the use of an external device such as a handheld or PC, an optional 3-Button Assembly is available. Use the buttons and menus to:

•Configure transmitter

•Configure and navigate displays

Sensor Housing

The sensor housing contains the pulse generation and analysis hardware.

These electronics are potted to provide flame path resistance.

The sensor housing is available as a replaceable part.

Process Connector

The process connector has the following functions.

•Separates the process environment from the external environment.

•Provides a threaded insert to the tank which removes the need for brackets to mount the transmitter. Various mounting types are available, including popular threads and flanges.

•Provides electrical feed-through to the probe.

Each of the SLG720 and SLG726 models have different process connector designs.

Note: Each process connector design accepts a sub-set of the full range of probe types.

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Probe

The purpose of a Guided Wave Radar probe is to guide radar pulses produced by the radar transmitter towards the material being measured. It also guides the reflected pulse back to the transmitter for processing into a level measurement. The probe can be made of a single conductor such as for single wire or rod probes, or two conductors for coaxial probes. For rigid probes (rod and coaxial), multiple segments, each up to 2m long, can be connected.

The probe is also known in the industry as “waveguide”.

A single wire probe is the most common design; other designs are provided based on application needs. For the purposes of this document the term “Wire” is being used, however the term “Wire” and “Rope” are interchangeable.

Table 2-3 summarizes advantages and disadvantages of different probe constructions. Installation details of each probe are described in Chapter 3.

Table 2-3: Probe Selection

Legend

Yes

No

Contact the TAC team

	Single wire	Single rod	Coaxial
	(Wire)

Level

Interface (liquid/liquid)

Bubbling/boiling surfaces

Low-dielectric constant liquids 1

Foam (liquid surface measurement)

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Foam (top of foam measurement)

Foam (top of foam and liquid surface measurement)

Coating/tacky liquids

Crystallizing liquids

Viscous liquids

Probe is close to tank wall/disturbing objects (<12″/30cm)

Probe could contact tank wall, nozzle or disturbing objects

Turbulent Surface

Turbulent fluid causing mechanical stress on probe

Tall, narrow nozzles1

Liquid or vapor spray could contact probe above surface

Disturbing electromagnetic interference in tank

Ability to clean probe

1 See the SLG 700 SmartLine Guided-Wave Radar Level Specification, Document #34-SL-03-03.

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1.4 Communicating with the Transmitter

It is possible to remotely monitor and configure a transmitter using either the HART or

FOUNDATIONTM Fieldbus (FF) protocols. Alternatively, with the HART option, the transmitter can be monitored using the analog current, and with both interfaces, can be configured using the three-button interface and display.

The protocols are not interchangeable. Each protocol uses Note: significantly different terminal and communication boards that are

installed before shipping.

4-20 mA HART

The output of a transmitter configured for the HART protocol includes two primary modes:

•Point-to-Point Mode: one transmitter is connected via a two-conductor, 4-20mA current loop to one receiver.

•Multi-Drop Mode: several transmitters are connected through a two-conductor network to a multiplexed receiver device.

The major difference between the two modes is that in Point-to-Point mode, the average value of the loop current represents the current value of an analog signal representing the process inside the tank. In multi-drop mode, the average value of the loop current is fixed, usually at 4mA. Therefore, in Point-to-Point mode, an external control system can read the Primary Variable (PV) through an analog input without HART messaging, whereas in multidrop mode, the PV can only be read as a digital value using HART messaging.

Note: In the HART system, the abbreviation PV is used to denote the Primary Variable which may be only one of a number of process or device variables that may be available.

SLG 700 supports HART version 7 and its associated backward compatibility. The analog signal is modulated by Frequency Shift Keying (FSK), using frequencies and current amplitude that do not affect analog sensing at the receiver. The accuracy of the analog level must be precisely controlled for accurate sensing. HART communication will not bump process variables. In multi-drop mode, theoretically up to 16 devices in HART 5 (addresses 0-15) or up to 64 devices in HART6/7 (addresses 0-63) can exist on the two-conductor network. Practically, the number of devices in a multi-drop installation is limited due to design constraints. When installing into a multi-drop network, consider that the SLG700 requires a minimum startup current of 17mA and a minimum terminal voltage of 11V during startup. After this initial startup period (approximately 0.5 seconds), the loop current will be fixed at 4mA, and the minimum terminal voltage is 14V. The power source, wiring, intrinsic safety barriers, and other devices in the network be considered to ensure these requirements can be met.

Note: The SLG700 requires a minimum startup current of 17mA, even when configured in multi-drop mode. The minimum terminal voltage is 11V during startup. After startup, the loop current will be fixed at 4mA, and the minimum terminal voltage should be 14V.

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Figure 2-2 is an example of a HART connection to the transmitter. The communication resistor RL may be inserted anywhere in the 4-20 mA loop but it is recommended to be installed close to the positive supply. Refer to section 0 for acceptable power supply and RL ranges

The MC Toolkit is a dedicated Honeywell communication tool that uses Device Description (DD) files to communicate with multiple transmitter models. Also, other equivalent tools or a HART-to-USB converter may be used. Device Description files are available from:

•HONEYWELL: Go to:

https://www.honeywellprocess.com/en-US/explore/products/instrumentation/process-level- sensors/Pages/smartline-level-transmitter.aspx

Select the “Software” tab.

Scroll/search for file name:

“HART Device Description (DD) files for Honeywell HART Devices”

This .zip file contains the latest version of the DD files for all of Honeywell’s HART field devices.

Unzip the file to locate the DD files applicable to the SLG 700 series.

•HART® FOUNDATION: http://en.hartcomm.org

	Device Descriptions (DD) are HART data files which are
	gathered from field device manufacturers which describes the
Note:	features and functions of a device.
	HART provides a detailed definition here:
	http://en.hartcomm.org/hcp/tech/faq/faq.html

Figure 2-2: Example of HART connection RL

Refer to section 0 for RL information

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FOUNDATIONTM Fieldbus (FF)

The Honeywell SLG 700 is a SmartLine Level transmitter that has a wide range of additional features along with supporting the FOUNDATIONTM Fieldbus (FF) communication protocol. The SLG 700 level transmitter with FF protocol provides a FOUNDATION Fieldbus interface to operate in a compatible distributed Fieldbus system. The transmitter includes FOUNDATION Fieldbus electronics for operating in a 31.25 Kbit/s Fieldbus network and can interoperate with any FOUNDATION Fieldbus registered device.

The Honeywell SmartLine SLG 700 is a high-performance transmitter offering high accuracy, reliability and resolution over a wide range of process conditions.

The SLG 700 Fieldbus device is fully tested and compliant with Honeywell Experion® PKS providing the highest level of compatibility assurance and integration capabilities.

Figure 2-3 graphically represents the connection of the transmitter to a FF handheld device. A similar connection may be realized using PC configuration software.

Each transmitter includes a configuration database that stores its operating characteristics in a non-volatile memory.

The handheld or PC software is used to establish and/or change selected operating parameters in a transmitter database. The process of viewing and/or changing database parameters is called configuration.

Configuration can be accomplished both online and offline with the transmitter powered up and connected to the handheld.

Online configuration immediately changes the transmitter operating parameters. For offline configuration, transmitter operating characteristics are entered into the handheld memory for subsequent downloading to transmitter.

Figure 2-3: Example of FF connection

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DTM-based tools and Experion

HART and FOUNDATION Fieldbus models support Device Type Managers (DTMs)

running on Field Device Technology® (FDT) hosts such as PACTware or Field Device Manager (FDM) / Experion.

The transmitter establishes communication with the host systems using DD or DTM.

Device Description (DD)

DD is a binary file that provides the definition for parameters in the FBAP of the transmitter. For example, DD refers to the function blocks that a transmitter contains, and the corresponding parameters in the blocks that are critical to the interoperability of Fieldbus devices. They define the data required to establish communications between different Fieldbus devices from multiple vendors with control system hosts. The DD provides an extended description of each object in the Virtual Field Device (VFD).

The Fieldbus Foundation provides the DD for all registered devices on its website, http://www.fieldbus.org/index.php?option=com_mtree&task=viewlink&link_id=1991&ff bstatus=Registered&Itemid=324

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Enhanced Device Description (EDD)

There are two types of EDDs are available, namely .ff5/.sy5 and .ffo/sym. The .ffo/.sym binary files are generated for the legacy hosts to load the device DD that is generated using latest tokenizer. Few constructs like Images that are supported in .ff5/.sy5 binaries, are not supported in .ffo/.sym binary files.

Device Type Manager (DTM)

The DTM is similar to a device driver that enables usage of devices in all the asset management and device configuration software like FDM or PACTware, with the help of the FDT-DTM technology.

The DTM has the following primary functions:

•Provides a graphic user interface for device configuration.

•Provides device configuration, calibration, and management features for the particular device.

The DTM provides functions for accessing device parameters, configuring and operating the devices, calibrating, and diagnosing problems.

Download the DTM from: https://www.honeywellprocess.com/en- US/explore/products/instrumentation/process-level-sensors/Pages/smartline-level- transmitter.aspx

Go to the Software tab

To set up the DTM on the FDM/Experion refer to the FDM/Experion User Guide. Figure 2-4 shows an example of a FF network setup.

For more information on Experion go to: https://www.honeywellprocess.com/integrated-control-and-safety-systems/experion-pks/

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Figure 2-4: Example of a FF network

1.5 SLG 700 Transmitter nameplate

The Transmitter nameplate is mounted on the top of the electronics housing (see Figure 2-5) and lists the following properties:

•Model number

•Physical configuration

•Power supply voltage

•Maximum working pressure rating

•Certification, if ordered (SIL and CRN)

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Product ID

Nameplate

Figure 2-5: Transmitter nameplate example

The nameplate contains the following information:

MODEL NO.: The transmitter model number per the model selection guide. SERIAL NO.: The unique transmitter serial number.

CRN: The CSA Registration number.

SUPPLY: The DC power supply voltage range as measured at the terminal assembly. MAWP: Maximum Allowable Working Pressure.

PROCESS TEMPERATURE: The Process temperature range.

CUST. CAL.: Specifies any custom calibration, if ordered, otherwise blank. PROBE LG: Length of the probe as defined in the model number. WETTED MATERIAL: A list of the wetted materials.

CUSTOMER ID: User-defined identifier, if ordered, otherwise blank. HOUSING CONNECTION TYPE: Conduit fitting size: ½” NPT or M20

ASSEMBLED IN / MADE BY HONEYWELL: The country where the transmitter was assembled and tested.

SIL INFORMATION: SIL 2/3 Capable is indicated if SIL certification applies, otherwise blank.

COMMUNICATION INTERFACE: A symbol indicating the supplied communications interface, HART or FOUNDATION Fieldbus.

or

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1.6 Transmitter Model Number Description

The model number is comprised from a number of selections and options that can be specified when ordering the transmitter. It includes a basic transmitter type such as SLG720 (standard temperature, standard pressure) followed by a maximum of nine additional character strings that can be selected from a corresponding Table in the Model Selection Guide (MSG).

The basic model number structure is shown in Figure 2-6.

Figure 2-6: Standard SLG 700 Model Number

For a more complete description of the various configuration items and options, refer to the

SLG 700 Product Specification (34-SL-03-03) and Model Selection Guide (34-SL-16-01).

1.7 Safety Certification Information

SLG transmitter models are available for use in hazardous locations, including CSA, IECEx, ATEX, and FM approvals. See Appendix Certifications for details and other approvals. The transmitter will include an “approvals” nameplate mounted on the electronics housing with the necessary compliance information.

Figure 2-7: Safety certification example

Safety Integrity Level (SIL)

The SLG 700 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 SLG 700 Safety Manual, Document #34-SL-25-05, for additional information. The SIL level will be indicated on the SLG 700 nameplate.

See the SLG 700 Transmitter nameplate for additional information, Figure 2-5.

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1.8 Security Considerations

The SLG 700 provides several features designed to prevent accidental changes to the device configuration or calibration data. These features include a local display password (HART option), a communication password (HART option), a Hardware Write Protect Jumper and a Software Write Protect configuration parameter. These features can be used in combination to provide multiple layers of change protection.

For both the local display and communication passwords, the initial user passwords are defined as "0000". A "0000" password indicates that the user has not set a userdefined password and the password protection is disabled. The password used on the local keyboard display is separate from the password provided for communication. Password protection from the local keyboard display does not inhibit changes by way of communication over the current loop. A master password is available that allows recovery if the set user password is unknown.

A hardware write-protect locks out changes regardless of the entry of a password. The hardware jumper requires physical access to the device as well as partial disassembly and should not be modified where the electronics are exposed to harsh conditions or where unsafe conditions exist. For configuration or calibration changes without changing the hardware jumper position the user may choose to rely on the password and software lockout features.

A tamper mode feature (see SLG 700 SmartLine Guided Wave Radar Level Transmitter HART Option Manual, Document #34-SL-25-06) is available that can indicate that an attempt was made to change either the configuration or calibration of the device (whether or not a change was actually made). These security features are designed to avoid accidental changes and to provide a means to detect if an attempt was made to change the configuration and calibration. Note: FF does not support tamper mode.

1.9 Measurement Options Licensing

As of software revision R200, the sensor checks whether the user has a license required to operate the device in a particular measurement mode (see also 2.5 for the various measurement modes). Licenses are required to measure two-liquid interfaces, use the low DC measurement mode and for steam applications. Any sensor ordered for these application will have a valid license key stored in the transmitter and no user action is required.

The license key depends on the device ID which can be checked using the display (see Table 4-8 or DTM. It is possible to obtain new license keys for application types other than which the gauge was originally bought for by supplying the device ID to Honeywell and entering the newly obtained license key.

Gauges that were installed prior to R200 do not lose access to the interface measurement when they are upgraded to the new software - the sensor will internally generate a license key for this application after the first startup and store it in memory.

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