Honeywell SLN 700 User manual

Honeywell Process Solutions
SLN 700
SmartLine Level Transmitter
Non-Contact Radar
User’s Manual
34-SL-25-13
Revision 2
March 2023

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Page ii SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
Copyrights, Notices and Trademarks
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© Copyright 2023 by Honeywell International
Revision 2.0, March 2023
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 Total Plant
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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Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page iii
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 SLN 700 SmartLine
Non-Contact Radar Level Transmitters.
For details on the HART protocol, refer to the SLN 700 Series HART Option User’s Manual,
Document #34-SL-25-16.
The configuration of your Transmitter depends on the mode of operation and the options
selected for it with respect to operating controls 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 Total Plant 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
SLN 700 SmartLine Level Non-Contact Radar Transmitter User’s Manual,
Document #34-SL-25-13.
Version
Date released
History
Rev. 1.0
October 2020
First release
Rev. 2.0
March 2023
Second release

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Page iv SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
References
The following list identifies publications that may contain information relevant to the
information in this document.
•SLN 700 SmartLine Non-Contact Radar Level Transmitter HART Option
Manual,
#34-SL-25-16
•SLN 700 SmartLine NCR Level Transmitter Specification, #34-SL-03-06
SLN 700 SmartLine NCR Quick Start Guide (in the box), #34-SL-25-14
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 website:
Honeywell Corporate www.honeywell.com
Honeywell Process Solutions https://process.honeywell.com
Honeywell SmartLine Level www.process.honeywell.com/level-transmitters
Telephone and Email Contacts
Area
Organization
Phone Number
United States and
Canada
Honeywell Inc.
1-800-343-0228 Customer Service
1-800-423-9883 Global Technical Support
Global Email
Support
Honeywell Process
Solutions
[e-mail]

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Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page v
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.

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Page vi SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
The Factory Mutual®Approval mark means the equipment has been
rigorously tested and certified to be reliable.
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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Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page vii
Contents
1Introduction..........................................................................................................1
1.1 Overview.................................................................................................................................1
1.2 Transmitter Models.................................................................................................................1
1.3 Transmitter Components........................................................................................................1
Overview of components....................................................................................................1
Electronics ..........................................................................................................................2
Process Connector .............................................................................................................2
1.4 Communicating with the Transmitter......................................................................................3
1.5 SLN 700 Transmitter Label.....................................................................................................3
1.6 Transmitter Model Number Description..................................................................................4
1.7 Safety Certification Information ..............................................................................................4
2Radar Level Measurement...................................................................................5
2.1 Overview.................................................................................................................................5
2.2 Theory of Operation................................................................................................................5
3Mounting..............................................................................................................6
Moisture-proof.....................................................................................................................7
Installation position .............................................................................................................7
Nozzle installations.............................................................................................................8
Correct and incorrect Installation position ..........................................................................9
Installation of reflecting plate............................................................................................10
Installations with Agitation ................................................................................................10
4Transmitter Installation....................................................................................... 11
4.1 Supply voltage......................................................................................................................11
4.2 Installation of connecting cables...........................................................................................12
General introduction .........................................................................................................12
4.3 Wiring mode..........................................................................................................................12
2-Wire ...............................................................................................................................12
4.4 Hazardous Location –Intrinsic Safety..................................................................................13
4.5 Recycling and disposal of product........................................................................................15
5Operating the Transmitter..................................................................................16
5.1 Functions of keys..................................................................................................................16
5.2 Programming menu description............................................................................................18
6Maintenance ...................................................................................................... 40
6.1 Configuration method ...........................................................................................................40
Configuration with Display................................................................................................40

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Page viii SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
Configuration.....................................................................................................................41
6.2 Procedures............................................................................................................................41
Output Check Procedures.................................................................................................41
Constant Current Source Mode Procedure (Loop Test)...................................................41
Error Codes:......................................................................................................................42
Glossary...................................................................................................................43
List of Figures
Figure 1-1 Components of the Level transmitter.................................................................... 1
Figure 1-2: SLN 700 Transmitter label example.................................................................... 3
Figure 1-3: Standard SLN 700 Model Number...................................................................... 4
Figure 3-1: Graphical illustration........................................................................................... 6
Figure 3-2: Moisture-proof diagram....................................................................................... 7
Figure 3-3: Installation position, >200 mm............................................................................ 7
Figure 3-4: Conical vessel installation ................................................................................... 8
Figure 3-5: nozzle specifications diagram.............................................................................. 8
Figure 3-6: Correct and incorrect installation position........................................................... 9
Figure 3-7: Correct and incorrect installation position........................................................... 9
Figure 3-8: Installation of reflecting plate............................................................................ 10
Figure 3-9: Agitation............................................................................................................ 10
Figure 4-1: Maximum Loop Resistance (Ω)......................................................................... 11
Figure 4-2: 2-wire wiring for HART.................................................................................... 12
Figure 4-3: Intrinsically Safe Wiring.................................................................................... 14
Figure 5-1: Instrument panel 4-key...................................................................................... 16
Figure 5-2: Representation of an echo curve defining the Echo Threshold and the Envelope
Offset quantities.................................................................................................................... 38
Figure 6-1: Connect via HART hand-held........................................................................... 41
List of Tables
Table 1-1: Process Connector................................................................................................. 2
Table 3-1: Minimal distance to tank wall............................................................................... 8
Table 3-2: nozzle specifications table .................................................................................... 9
Table 4-1: Maximum Loop Resistance (Ω).......................................................................... 11
Table 4-2: Hazardous Location Ratings............................................................................... 13
Table 4-3: Intrinsic Safety Entity Parameters....................................................................... 14
Table 4-4: Ambient & Process Temperatures Vs Temperature Class.................................. 14
Table 5-1: Keys of LCD....................................................................................................... 16

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Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page 1
1 Introduction
1.1 Overview
The SLN 700 SmartLine 80 GHz Non-Contact Radar transmitter is an electronic
instrument designed to measure levels of liquid and solid materials. Non-Contact
Radar (NCR) transmitters use Frequency Modulated Continuous Wave (FMCW)
radar signals that are reflected by the material to be measured. The difference in
frequency between the received and transmitted signal is directly proportional to the
distance to the liquid and can be measured with high precision. Its small beam
angle and small antenna size makes it easy to install. In comparison to other level
measurement technologies, NCR provides a highly accurate, cost-effective, reliable
measurement in applications where Guided Wave Radar (GWR) are not suitable.
1.2 Transmitter Models
The SLN 700 SmartLine 80 GHz NCR transmitter is available as a part of the family
of SLN700L models for liquid and SLN700S for solid applications. The pressure
and temperature range is -40 to 200°C/-1 to 40 bar for both, and each model is
available with a range of flange or threaded antenna, lens diameters, process
connection, and accessories to suit most applications.
1.3 Transmitter Components
Overview of components
As shown in
Figure 1-1, the transmitter consists of:
•Electronics housing containing the core measurement module and optional
display module
•Process connection
•RF antenna
Figure 1-1 Components of the Level transmitter

Page 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
Electronics
The Electronics consists of 2 distinct modules: core measurement electronics module
and an optional display module. Both are replaceable in the field.
To make changes to the transmitter setup or configuration without the use of an
external device such as a handheld or PC, an optional 4-Button interface is available.
The Optional Display module has the following features.
•Echo stem plot for checking measurement accuracy
•Standard and custom engineering units
•Diagnostic alerts and diagnostic messaging
•English and Chinese language options
Process Connector
The 80 GHz non-contact radar transmitter has 3 different series of products and
associated process connections.
Table 1-1: Process Connector
Series
Medium
Applications
Process
connections
82 Series
Liquid
Strong corrosive liquid
vapors o foam
Flange options
83 Series
Liquid
Strong corrosive or
pressure resistant liquid
Thread options
87 Series
Solid
Storage vessel/process
vessel or high dust
applications
Flange options
For list of all options and accessories refer to the product specifications available at
www.process.honeywell.com/level-transmitters.

Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page 3
1.4 Communicating with the Transmitter
Level monitoring is possible through either the analog current (4-20 mA) or HART. It is
possible to configure a transmitter using HART©protocol or using the four-button
interface and display. For more information on HART commands, refer SLN700 NCR
HART Option Manual 34-SL-25-16.
1.5 SLN 700 Transmitter Label
The transmitter label is mounted on the side of the electronics housing
(see Figure 1-2) and lists the following properties:
•Model number
•Physical configuration
•Power supply voltage
•Maximum working pressure rating
•Certification, if ordered (IECEx and CSA)
Figure 1-2: SLN 700 Transmitter label example

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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
SLN700 (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 1-3.
Figure 1-3: Standard SLN 700 Model Number
For a more complete description of the various configuration items and options, refer to
the SLN700 Product Specification (34-SL-03-06) and Model Selection Guide (34-SL-16-
20).
1.7 Safety Certification Information
SLN transmitter models are available for use in Intrinsic Safe locations, including
IECEx, ATEX, INMETRO, and NEPSI approvals. See SLN700 Product Specification
(34-SL-03-06) or SLN700 Quick Start Guide (34-SL-25-14) for details and other
approvals.

Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page 5
2 Radar Level Measurement
2.1 Overview
This chapter describes the theory of operation of the transmitter and discusses how
measurements are affected by tank and process conditions.
2.2 Theory of Operation
The fundamental principle of operation is level measurement through the reflection of
frequency modulated radar waves (FMCW technique). The antenna emits a continuous
wave of radiation near 80 GHz whose frequency linearly increases in time in a saw
tooth pattern. When the return pulse is detected by the same antenna, the processing
electronics use a Fourier Transform technique to calculate the difference between the
frequency of the generated and reflected signal. This difference is proportional to the
distance of reflection.

Page 6 SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
3 Mounting
Due to the finite beam angle and resulting transmission cone, there should be no obstacles in
the area radiated by the transmitted microwave beam from the lower edge of the antenna to the
material surface to be measured. Therefore, it is necessary to avoid these facilities in the tank
during installation. These include ladders, limit switches, heating equipment, supports, etc.
If necessary, some of the obstacles can be removed from the measurement using background
subtraction ("Virtual Echo Learning"). In addition, please note that the microwave beam should
not intersect with tank fluid in or out flows. Please also note that the highest material level should
not enter the near range (see Figure 3-1), the instrument should be kept at a certain distance
from the wall of tank and the transmitting antenna should be perpendicular to the measured
material surface as much as possible. The instruments installed in a hazardous classified area
shall follow the local national installation regulations.
The reference plane for measurement is the sealing surface of threads or flanges.
Figure 3-1: Graphical illustration
1. Near distance
2. Far distance
3. Distance at which sensor reads 100% level (or current)
4. Distance at which sensor reads 0 % level (or current)

Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page 7
Moisture-proof
For instruments that are installed outside, in a wet environment, and cooling or heating
tanks, the cable gland must be tightened. The cable, at the cable gland entry, must be
bent downward to prevent moisture as shown in Figure 3-2.
Figure 3-2: Moisture-proof diagram
Installation position
During the installation, please note that the instrument should be kept minimal distance
to tank wall from the vessel wall. For different antenna, please refer to Table 3-1.
However, the instrument must not under any circumstances be mounted closer than
200mm to the vessel wall or values calculated from Table 3-1.
Figure 3-3: Installation position, >200 mm
1. Reference plane
2. Center of the vessel or symmetry axis.

Page 8 SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
Table 3-1: Minimal distance to tank wall
SLN700 Model
Min distance to tank wall
83A
1/5 × Tank Height
82A 82B 83B 83C
1/10 × Tank Height
82C 82D 83D 83E
87A 87B 87C 87D
1/20 × Tank Height
For the conical vessel with a flat tank top, the best installation position of instrument is
the top center of the vessel, which ensures that the bottom of the container is
measured.
Figure 3-4: Conical vessel installation
Nozzle installations
In the case of a material with good reflection properties (high dielectric constant, DK),
the sensor may be mounted on a nozzle. The background subtraction ("virtual echo
learning") feature can further reduce false echoes from nozzle openings.
Table 3-2 shows detail of the size limitations of the nozzle.
Figure 3-5: nozzle specifications diagram

Revision 2 SLN 700 SmartLine NCR Level Transmitter User’s Manual Page 9
Table 3-2: nozzle specifications table
Nozzle
Diameter
d（mm）
Maximum Nozzle Height h（mm）
83A
82A 82B
83B 83C
82C 82D
83D 83E
87A 87B
87C 87D
40
150
NA
NA
NA
50
150
150
NA
NA
80
200
200
200
NA
100
300
300
300
300
125
400
400
400
400
150
500
500
500
500
Correct and incorrect Installation position
Figure 3-6: Correct and incorrect installation position
1. Correct
2. Incorrect: Instruments are installed in the arched or round top of the tank, which will
result in multiple echoes. This should be avoided as much as possible during the
installation.
Figure 3-7: Correct and incorrect installation position
1. Incorrect: Instruments should not be installed above the fluid in-take, in order to ensure
that the dielectric surface will be detected rather than the charging material flow.
2. Correct.
Note: Sun-shading and rain proof measures must be adopted for the outdoor installation.

Page 10 SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
Installation of reflecting plate
If there are barriers in the tank, the reflecting plate can be installed to reflect the echo
wave away from the sensor. If necessary, "virtual echo learning" can be turned on.
Figure 3-8: Installation of reflecting plate
Installations with Agitation
If there are agitators in the tank, the instrument should be installed as far away from
these as possible. Once the installation is completed, the “virtual echo learning" should
be carried out while the agitators are running. It will eliminate the influence of false echo
generated by mixing blades. If foam or wave is generated due to agitation, then the
customer should consider a guided wave radar sensor such as the Honeywell SLG-700
series.
Go to https://www.honeywellprocess.com/en-
US/explore/products/instrumentation/process-level-sensors/Pages/smartline-guided-
wave-level-transmitter.aspx
Figure 3-9: Agitation

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4 Transmitter Installation
4.1 Supply voltage
(4-20) mA / HART (2-Wire)
Power supply and the output current signal are carried by the same 2-wire cable. The
allowed supply voltage range is 12V to 30V depending on loop resistance. There must
always be between 12V and 30V on the transmitter terminals, regardless of loop
current. A safety barrier (refer to Table 3-1 for detailed specification) must be placed
between the power supply and instrument for the intrinsically safe version.
The grounding mode of current output can be adopted for the standard instrument,
while the floating current output should be adopted for the intrinsically safe instrument.
Normally, the grounding terminals can be connected to the grounding point of tank or
an available nearby ground in case of plastic tank.
Maximum Loop Resistance (Ω)
Figure 4-1: Maximum Loop Resistance (Ω)
Table 4-1: Maximum Loop Resistance (Ω)
Supply
Voltage (VDC)
Max. Loop
Resistance (Ω)
12
0
17.5
250
23
500
30
818

Page 12 SLN 700 SmartLine NCR Level Transmitter User’s Manual Revision 2
4.2 Installation of connecting cables
General introduction
4-20 mA / HART (2-Wire)
A regular two conductor cable can be used as the power supply cable, and the outside
diameter of the cable should be (5-9) mm to ensure the sealing of cable entry. In case
of potential electromagnetic interference, it is recommended to use a shielded cable.
Shielding and wiring of cables
The two ends of the shielded cable should be grounded only where allowed by the
installation location. In hazardous locations, only one end of the cable can be shielded,
typically on the non-hazardous side.
4.3 Wiring mode
2-Wire
2-wire wiring used for HART (electronic unit B)
Figure 4-2: 2-wire wiring for HART
Note: For intrinsic safety installations, shield is normally terminated at one end only.