Vega VEGAPULS WL 61 User manual

Operating Instructions
Radar sensor for continuous level
measurement of water and wastewater
VEGAPULS WL 61
4 … 20 mA/HART - two-wire
Document ID: 38061

2
Contents
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 EU conformity................................................................................................................... 6
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Radio licenses for Europe ................................................................................................ 6
2.8 Radio license for USA/Canada......................................................................................... 7
2.9 Restrictions for the USA and Canada............................................................................... 7
2.10 Installation and operation in the USA and Canada ........................................................... 8
2.11 Security concept, Bluetooth operation.............................................................................. 8
2.12 Environmental instructions ............................................................................................... 8
3 Product description
3.1 Conguration.................................................................................................................... 9
3.2 Principle of operation...................................................................................................... 10
3.3 Adjustment ..................................................................................................................... 11
3.4 Packaging, transport and storage................................................................................... 12
3.5 Accessories and replacement parts ............................................................................... 13
4 Mounting
4.1 General instructions ....................................................................................................... 14
4.2 Mounting versions.......................................................................................................... 14
4.3 Mounting preparations, mounting strap.......................................................................... 17
4.4 Mounting instructions ..................................................................................................... 17
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 23
5.2 Wiring plan ..................................................................................................................... 23
5.3 Switch-on phase............................................................................................................. 24
6 Setup with smartphone/tablet (Bluetooth)
6.1 Preparations................................................................................................................... 25
6.2 Connecting..................................................................................................................... 25
6.3 Sensor parameter adjustment........................................................................................ 26
7 Setup with PC/notebook (Bluetooth)
7.1 Preparations................................................................................................................... 27
7.2 Connecting..................................................................................................................... 27
7.3 Parameter adjustment .................................................................................................... 28
8 Setup with VEGADIS 82
8.1 Principle of operation and connection ............................................................................ 29
8.2 Adjustment volume......................................................................................................... 29
8.3 Setup steps .................................................................................................................... 30
9 Setup with PC/notebook (VEGACONNECT)

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Contents
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
9.1 Connect the PC.............................................................................................................. 31
9.2 Parameter adjustment .................................................................................................... 33
9.3 Saving the parameterisation data................................................................................... 34
10 Set up with other systems
10.1 DD adjustment programs ............................................................................................... 35
10.2 Field Communicator 375, 475 ........................................................................................ 35
11 Diagnosis, asset management and service
11.1 Maintenance .................................................................................................................. 36
11.2 Measured value and event memory ............................................................................... 36
11.3 Asset Management function........................................................................................... 37
11.4 Rectify faults................................................................................................................... 40
11.5 Software update ............................................................................................................. 43
11.6 How to proceed if a repair is necessary.......................................................................... 44
12 Dismount
12.1 Dismounting steps.......................................................................................................... 45
12.2 Disposal ......................................................................................................................... 45
13 Supplement
13.1 Technical data ................................................................................................................ 46
13.2 Radio astronomy stations............................................................................................... 51
13.3 Dimensions .................................................................................................................... 52
13.4 Industrial property rights................................................................................................. 56
13.5 Hash function acc. to mbed TLS..................................................................................... 56
13.6 Trademark ...................................................................................................................... 56
Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions manual.
Editing status: 2017-08-23

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1 About this document
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tionsformaintenance,faultrectication,theexchangeofpartsand
the safety of the user. Please read this information before putting the
instrument into operation and keep this manual accessible in the im-
mediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
personnel.The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbols used
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

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2 For your safety
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual must
be carried out only by trained specialist personnel authorised by the
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAPULS WL 61 is a sensor for continuous level measurement.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives.The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning looked up in this
operating instructions manual.

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2 For your safety
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
Depending on the instrument version, the emitting frequencies are in
the C, K or W band range. The low emission power is far below the
internationally approved limit values. When used correctly, the device
poses no danger to health.
2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
YoucanndtheEUconformitydeclarationonourwebsiteunder
www.vega.com/downloads.
2.6 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 43 – Signal level for fault information from measuring transduc-
ers
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
• NE107-Self-monitoringanddiagnosisofelddevices
For further information see www.namur.de.
2.7 Radio licenses for Europe
VEGAPULS WL 61
The instrument was tested according to the latest issue of the follow-
ingharmonizedstandards:
• EN 302372 - Tank Level Probing Radar
• EN 302729 - Level Probing Radar
It is hence approved for use inside and outside closed vessels in
countries of the EU.
Use is also approved in EFTA countries, provided the respective
standards have been implemented.
For operation inside of closed vessels, points a to f in annex E of
EN302372mustbefullled.
For operation outside of closed vessels, the following conditions must
befullled:
• Theinstallationmustbecarriedoutbytrainedqualiedpersonnel
• The instrument must be stationary mounted and the antenna
directed vertically downward
• The mounting location must be at least 4 km away from radio
astronomy stations, unless special permission was granted by the
responsible national approval authority

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2 For your safety
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
• When installed within 4 to 40 km of a radio astronomy station,
the instrument must not be mounted higher than 15 m above the
ground.
Youcanndalistoftherespectiveradioastronomystationsinchap-
ter "Supplement".
Bluetooth radio module
The radio module used in the instrument for wireless Bluetooth com-
munication was tested by the manufacturer according to the latest
edition of the following standard:
• EN 300328 – Wideband transmission systems
It is hence for use inside closed vessels in countries of the EU and
EFTA.
2.8 Radio license for USA/Canada
This approval is only valid for USA and Canada. Hence the following
texts are only available in English/French language.
The instrument is in conformity with part 15 of the FCC regulations.
Operation is subject to the following two conditions:
• this device may not cause harmful interference, and
• this device must accept any interference received, including inter-
ference that may cause undesired operation.
• the antenna must be directed vertically downward
FCCrequirementslimitthisdevicetobeusedonlyinaxedinstal-
lation, never in a portable installation or in installations that are in
motion (i.e. cement trucks, etc.).
Changesormodicationsnotexpresslyapprovedbythemanufac-
turer could void the user’s authority to operate the equipment.
This device complies with Industry Canada license-exempt RSS
standard(s). Operation is subject to the following two conditions:
• this device may not cause interference, and
• this device must accept any interference, including interference
that may cause undesired operation of the device
Le présent appareil est conforme aux CNR d'Industrie Canada ap-
plicables aux appareils radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes:
• l'appareil ne doit pas produire de brouillage , et
• l'utilisateur de l'appareil doit accepter tout brouillage radioélect-
rique subi, même si le brouillage est susceptible d'en compromet-
tre le fonctionnement
2.9 Restrictions for the USA and Canada
The VEGAPULS WL 61 with wireless Bluetooth communication must
neither be operated in the USA or Canada nor imported or exported.

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2 For your safety
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
2.10 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code
A Class 2 power supply unit has to be used for the installation in the
USA and Canada.
2.11 Security concept, Bluetooth operation
Sensor adjustment via Bluetooth is based on a multi-stage security
concept.
Authentication
When starting Bluetooth communication, an authentication is carried
out between sensor and adjustment device by means of the sensor
PIN.The sensor PIN is part of the respective sensor and must be
entered in the adjustment device (smartphone/tablet).To increase
adjustment convenience, this PIN is stored in the adjustment device.
This process is secured via an algorithm acc. to standard SHA 256.
Protection against incorrect entries
In case of multiple incorrect PIN entries in the adjustment device,
further entries are possible only after a certain amount of time has
passed.
Encrypted Bluetooth communication
The sensor PIN as well as the sensor data are transmitted encrypted
between sensor and adjustment device according to Bluetooth
standard 4.0.
2.12 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental pro-
tection.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfullthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"

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3 Product description
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
3 Product description
3.1 Conguration
Youcanndthetypelabelonthesensorhousingaswellasonthe
type label support on the connection cable.
Itcontainsthemostimportantdataforidenticationanduseofthe
instrument.
2
1
15
16
13
14
12
11
5
3
6
4
7
8
10
9
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Approvals
4 Power supply and signal output, electronics
5 Protection rating
6 Measuring range
7 Process and ambient temperature, process pressure
8 Material, wetted parts
9 Hardware and software version
10 Order number
11 Serial number of the instrument
12 Data matrix code for VEGA Tools app
13 Symbol of the device protection class
14 ID number, instrument documentation
15 Reminder to observe the instrument documentation
16 Symbol for Bluetooth
The 4-digit PIN is necessary for the Bluetooth connection to the sen-
sor.The PIN is unique and is only valid of this sensor.
YoucanndthePINasalabelonasupplementarysheetinthesen-
sor packaging and next to the type label.
Fig. 2: Bluetooth PIN
Type label
Sensor PIN

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3 Product description
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
The type label contains the serial number of the instrument. With it
youcanndthefollowinginstrumentdataonourhomepage:
• Product code (HTML)
• Delivery date (HTML)
• Order-specicinstrumentfeatures(HTML)
• Operating instructions and quick setup guide at the time of ship-
ment (PDF)
• Order-specicsensordataforanelectronicsexchange(XML)
• Testcerticate(PDF)-optional
Go to "www.vega.com", "Instrument search (serial number)". Enter
the serial number.
Alternatively, you can access the data via your smartphone:
• Download the smartphone app "VEGA Tools" from the "Apple App
Store" or the "Google Play Store"
• Scan the Data Matrix code on the type label of the instrument or
• Enter the serial number manually in the app
This operating instructions manual applies to the following instrument
versions:
• Hardware from 1.0.0
• Software from 4.4.0
The scope of delivery encompasses:
• Radar sensor
• Optionally integrated Bluetooth module
• Optional mounting accessory
• Documentation
– Quick setup guide VEGAPULS WL 61
– Instructions for optional instrument features
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
Information:
The optional instrument features are described in the operating
instructions manual.The respective scope of delivery results from the
orderspecication.
3.2 Principle of operation
The radar sensor VEGAPULS WL 61 is the ideal sensor for all appli-
cations in the water and waste water industry. It is particularly suitable
for level measurement in water treatment, in pump stations as well as
stormwateroverowtanks,forowmeasurementinopenumesand
for gauge measurement.
The antenna of the radar sensor emits short radar pulses with a
durationofapprox.1ns.Thesepulsesarereectedbytheproduct
and received by the antenna as echoes.The transit time of the radar
pulses from emission to reception is proportional to the distance and
Serial number - Instru-
ment search
Scope of this operating
instructions manual
Scope of delivery
Application area
Functional principle

11
3 Product description
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
hence to the level.The determined level is converted into an appropri-
ate output signal and outputted as measured value.
3.3 Adjustment
Adjustment via the signal cable
As a standard feature, VEGAPULS WL 61 allows an adjustment via:
• External display and adjustment unit VEGADIS 82 (PLICSCOM)
• PC/Notebook with interface adapter VEGACONNECT (adjustment
software PACTware)
• DD adjustment programs
• Field Communicator 375, 475
4
5
3
1
2
Fig. 3: Connection of the VEGADIS 82 to the sensor, adjustment via the display
and adjustment module
1 Voltage supply/Signal output sensor
2 VEGADIS 82
3 Display and adjustment module
4 4 … 20 mA/HART signal cable
5 Sensor
Wireless adjustment
VEGAPULS WL 61 with integrated Bluetooth module enables the
wireless adjustment via standard adjustment instruments:
• Smartphone/tablet (iOS or Android operating system)
• PC/notebook with Bluetooth USB adapter (Windows operating
system)

12
3 Product description
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
1
4
2
3
Fig. 4: Wireless connection to standard operating devices
1 Display and adjustment module
2 Sensor
3 Smartphone/Tablet
4 Bluetooth USB adapter
5 PC/Notebook
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
Packaging
Transport
Transport inspection
Storage

13
3 Product description
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
With an instrument weight of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.5 Accessories and replacement parts
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
parameter adjustment of these instruments, the adjustment software
PACTware with VEGA-DTM is required.
Youcanndfurtherinformationintheoperatinginstructions"Interface
adapter VEGACONNECT" (Document-ID 32628).
VEGADIS 82 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
Youcanndfurtherinformationintheoperatinginstructions
"VEGADIS 82 4 … 20 mA/HART" (Document-ID 45300).
Storage and transport
temperature
Lifting and carrying
VEGACONNECT
VEGADIS 82

14
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
4 Mounting
4.1 General instructions
Make sure before mounting that all parts of the instrument exposed to
the process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
Youcannddetailedinformationontheprocessconditionsinchapter
"Technical data" as well as on the type label.
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1.
4.2 Mounting versions
Most simply mount the instrument via the straining clamp. For this
purpose, the connection cable is provided with a strain relief wire of
Kevlar.
In order to avoid faulty measured values, make sure that the sensor
does not oscillate.
> 200 mm
(7.87")
Fig. 5: Mounting via a straining clamp
Suitability for the process
conditions
Suitability for the ambient
conditions
Straining clamp

15
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
For a rigid mounting, a mounting bracket with opening for thread
G1½, e.g. from the VEGA product range, is recommended. The
mounting of the sensor in the bracket is carried out via a G1½ counter
nut of plastic.Take note of chapter "Mounting instructions" for the
distance to the wall.
> 200 mm
(7.87
")
Fig. 6: Mounting via a mounting bracket
The optional mounting strap enables sensor mounting on e.g. a ceil-
ing, wall or bracket. It is available in the following versions:
• Length 300 mm for ceiling mounting
• Length 170 mm for wall mounting
The instrument is normally mounted vertically with a bracket on the
ceiling.
This ensures swivelling of the sensor up to 180° for optimum orienta-
tion.
Fig. 7: Ceiling mounting via the mounting strap with length 300 mm
Mounting bracket
Mounting strap
Mounting strap - Ceiling
mounting

16
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
Fig. 8: Rotation in the centre with ceiling mounting
Asanalternativethestrapmountingiscarriedouthorizontallyor
obliquely.
> 200 mm
(7.87")
Fig. 9: Wall mounting via the mounting strap with length 170 mm
Fig. 10: Wall mounting with inclined wall via the mounting strap with length
300 mm
For mounting the instrument on a socket or a manhole cover, an
unassembledcombicollarangeforDN80(ASME3"orJIS80)is
optionallyavailablealsoasretrottingpart.
Mounting strap - Wall
mounting
Flange mounting

17
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
Youcannddrawingsofthesemountingoptionsinchapter"Dimen-
sions".
Fig. 11: Mounting by means of an adapter ange, for example, on a manhole lid.
4.3 Mounting preparations, mounting strap
The optional mounting strap is supplied unassembled. It must be
screwed to the sensor before setup with the attached screws. Max.
torque, see chapter "Technical data". Required tools: Allen wrench
size4.
Therearetwodierentvariantsofscrewingthestraptothesensor.
Depending on the selected variant, the sensor can be rotated in the
strapinnitelyvariablethrough180°orinthreesteps0°,90°and
180°.
4.4 Mounting instructions
For tight installation of the version with plastic horn antenna with com-
pressionoradapterange,thefollowingconditionsmustbefullled:
1. Usesuitableatseal,e.g.ofEPDMwithShorehardness25or50
2. Makesurethenumberofangescrewscorrespondstothenum-
berofangeholes
3. Tighten all screws with the torque stated in the technical data
The emitted radar impulses of the radar sensor are electromagnetic
waves.The polarisation is the direction of the electrical wave compo-
nent.Byturningtheinstrumentintheconnectionangeormounting
strap,thepolarisationcanbeusedtoreducetheeectsoffalse
echoes.
The position of the polarisation is marked by marking bars on the
instrument.
Tight installation of the
plastic horn antenna
Polarisation

18
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
1
Fig. 12: Position of the polarisation, marked by marking bars on the instrument.
1 Marking bar
When mounting the sensor, keep a distance of at least 200 mm
(7.874 in) to the vessel wall. If the sensor is installed in the center of
dished or round vessel tops, multiple echoes can arise.These can,
however, be suppressed by an appropriate adjustment (see chapter
"Setup").
If you cannot maintain this distance, you should carry out a false
signal suppression during setup. This applies particularly if buildup on
the vessel wall is expected. In such cases, we recommend repeating
the false signal suppression at a later date with existing buildup.
> 200 mm
(7.87
")
Fig. 13: Mounting of the radar sensor on round vessel tops
In vessels with conical bottom it can be advantageous to mount the
sensor in the centre of the vessel, as measurement is then possible
down to the bottom.
Installation position

19
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
Fig. 14: Mounting of the radar sensor on vessels with conical bottom
Donotmounttheinstrumentinorabovethellingstream.Makesure
thatyoudetecttheproductsurface,nottheinowingproduct.
Fig. 15: Mounting of the radar sensor with inowing medium
Approximate values of the socket heights are shown in the following
illustration.The socket end should be smooth and burr-free, if possi-
ble also rounded. After mounting, you have to carry out a false signal
suppression during the parameter adjustment.
Inowingmedium
Mounting socket

20
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-170830
d
h
Fig. 16: Deviating socket dimensions
The below charts specify the max. pipe socket length h depending on
the diameter d.
Socket diameter d Socket length h
80 mm ≤300mm
100 mm ≤400mm
150 mm ≤500mm
Socket diameter d Socket length h
3" ≤11.8in
4" ≤15.8in
6" ≤19.7in
Direct the sensor as perpendicular as possible to the product surface
to achieve optimum measurement results.
Fig. 17: Orientation of the sensor
The mounting location of the radar sensor should be a place where no
otherequipmentorxturescrossthepathoftheradarsignals.
Vessel installations, such as e.g. ladders, limit switches, heating spi-
rals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring point that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false signal suppression
should be carried out during setup.
Sensor orientation
Vessel installations