Vega VEGAPULS WL 61 User manual

Operating Instructions
Radar sensor for continuous level
measurement of water and wastewater
VEGAPULS WL 61
Probus PA
Document ID: 38062

2
Contents
VEGAPULS WL 61 • Probus PA
38062-EN-190128
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
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 approval for USA.................................................................................................... 7
2.9 Radio approval for Canada............................................................................................... 7
2.10 Installation and operation in the USA and Canada ........................................................... 9
2.11 Security concept, Bluetooth operation.............................................................................. 9
2.12 Environmental instructions ............................................................................................... 9
3 Product description ............................................................................................................... 10
3.1 Conguration.................................................................................................................. 10
3.2 Principle of operation...................................................................................................... 12
3.3 Adjustment..................................................................................................................... 12
3.4 Packaging, transport and storage................................................................................... 13
4 Mounting................................................................................................................................. 15
4.1 General instructions ....................................................................................................... 15
4.2 Mounting versions.......................................................................................................... 15
4.3 Mounting preparations, mounting strap .......................................................................... 18
4.4 Mounting instructions ..................................................................................................... 19
5 Connecting to power supply................................................................................................. 25
5.1 Preparing the connection ............................................................................................... 25
5.2 Wiring plan ..................................................................................................................... 26
5.3 Switch-on phase............................................................................................................. 26
6 Setup with smartphone/tablet (Bluetooth).......................................................................... 27
6.1 Preparations................................................................................................................... 27
6.2 Connecting..................................................................................................................... 27
6.3 Sensor parameter adjustment........................................................................................ 28
7 Setup with PC/notebook (Bluetooth)................................................................................... 29
7.1 Preparations................................................................................................................... 29
7.2 Connecting..................................................................................................................... 29
7.3 Parameter adjustment .................................................................................................... 30
8 Set up with other systems .................................................................................................... 32
8.1 DD adjustment programs ............................................................................................... 32
9 Diagnosis, asset management and service ........................................................................ 33
9.1 Maintenance .................................................................................................................. 33
9.2 Measured value and event memory ............................................................................... 33
9.3 Asset Management function........................................................................................... 34

3
Contents
VEGAPULS WL 61 • Probus PA
38062-EN-190128
9.4 Rectify faults................................................................................................................... 37
9.5 How to proceed if a repair is necessary.......................................................................... 41
10 Dismount................................................................................................................................. 42
10.1 Dismounting steps.......................................................................................................... 42
10.2 Disposal ......................................................................................................................... 42
11 Supplement ............................................................................................................................ 43
11.1 Technical data ................................................................................................................ 43
11.2 Radio astronomy stations............................................................................................... 47
11.3 Communication Probus PA........................................................................................... 48
11.4 Dimensions .................................................................................................................... 53
11.5 Industrial property rights................................................................................................. 57
11.6 Hash function acc. to mbed TLS..................................................................................... 57
11.7 Trademark ...................................................................................................................... 57
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.
Editing status: 2019-01-23

4
1 About this document
VEGAPULS WL 61 • Probus PA
38062-EN-190128
1 About this document
1.1 Function
This operating instructions provides all the information you need for
mounting, connection and setup as well as important instructions 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 immediate
vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
The contents of this manual must be made available to the qualied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
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.

5
2 For your safety
VEGAPULS WL 61 • Probus PA
38062-EN-190128
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualied 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 read in this oper-
ating instructions manual.

6
2 For your safety
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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 • Probus PA
38062-EN-190128
• 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 approval for USA
This approval is only valid for USA. Hence the following text is only
available in English language.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following conditions:
• This device may not cause interference, and
• This device must accept any interference, including interference
that may cause undesired operation of the device
This device has been approved for open air environments with the
following limitations:
• This device shall be installed and maintained to ensure a verti-
cally downward orientation of the transmit antenna's main beam.
Furthermore, the use of any mechanism that does not allow the
main beam of the transmitter to be mounted vertically downward is
prohibited.
• This device shall be installed only at xed locations. The LPR
device shall not operate while being moved or while inside a mov-
ing container.
• Hand-held applications are prohibited.
• Marketing to residential consumers is prohibited.
Changes or modications not expressly approved by the manufac-
turer could void the user’s authority to operate this equipment.
2.9 Radio approval for Canada
This approval is only valid for Canada. Hence the following texts are
only available in English/French language.
This device complies with Industry Canada's license-exempt RSS
standard(s).
Operation is subject to the following conditions:
• This device may not cause interference, and
• This device must accept any interference, including interference
that may cause undesired operation of the device

8
2 For your safety
VEGAPULS WL 61 • Probus PA
38062-EN-190128
This device has been approved for open air environments with the
following limitations:
• This device shall be installed and maintained to ensure a verti-
cally downward orientation of the transmit antenna's main beam.
Furthermore, the use of any mechanism that does not allow the
main beam of the transmitter to be mounted vertically downward is
prohibited.
• The installation of the LPR/TLPR device shall be done by trained
installers, in strict compliance with the manufacturer's instructions.
• This device shall be installed only at xed locations. The LPR
device shall not operate while being moved or while inside a mov-
ing container.
• Hand-held applications are prohibited.
• Marketing to residential consumers is prohibited.
• The use of this device is on a "no-interference, no-protection"
basis. That is, the user shall accept operations of high-powered
radar in the same frequency band which may interfere with or
damage this device.
• However, devices found to interfere with primary licensing opera-
tions will be required to be removed at the user's expense.
Le présent appareil est conforme aux CNR d’Industrie Canada ap-
plicables aux appareils radio exempts de licence. L’exploitation est
autorisée aux 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.
Cet appareil est homologué pour une utilisation dans les environne-
ments ouverts avec les restrictions suivantes :
• L'appareil doit être installé et entretenu de manière à garantir une
orientation verticale vers le bas du faisceau principal de l’antenne
émettrice. De plus, l’utilisation de tout mécanisme ne permettant
pas l’orientation verticale vers le bas du faisceau principal de
l’émetteur est interdite
• L’installation d’un dispositif LPR ou TLPR doit être eectuée
par des installateurs qualiés, en pleine conformité avec les
instructions du fabricant.
• Cet appareil ne doit être installé qu'à des emplacements xes.
L’appareil LPR ne doit pas être utilisé pendant qu’il est en train
d’être déplacé ou se trouve dans un conteneur en mouvement.
• Les applications portables sont interdites.
• La vente à des particuliers est interdite
• Ce dispositif ne peut être exploité qu'en régime de non-brouillage
et de non-protection, c'est-à-dire que l'utilisateur doit accepter que
des radars de haute puissance de la même bande de fréquences
puissent brouiller ce dispositif ou même l'endommager.
• D'autre part, les capteurs de niveau qui perturbent une exploita-
tion autorisée par licence de fonctionnement principal doivent être
enlevés aux frais de leur utilisateur.

9
2 For your safety
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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.
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"

10
3 Product description
VEGAPULS WL 61 • Probus PA
38062-EN-190128
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Radar sensor
• Optionally integrated Bluetooth module
• Optional mounting accessory
• Documentation
– Quick setup guide VEGAPULS WL 61
– Supplement with sensor PIN
– Instructions for optional instrument features
– Ex-specic "Safety instructions" (with Ex versions)
– If necessary, further certicates
Information:
Optional instrument features are also described in the operating
instructions manual. The respective scope of delivery results from the
order specication.
This operating instructions manual applies to the following instrument
versions:
• Hardware version from 1.0.0
• Software version from 4.5.2
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.
Scope of delivery
Scope of this operating
instructions
Type label

11
3 Product description
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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 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", "Search". Enter the serial number.
Alternatively, you can access the data via your smartphone:
• Download the VEGA Tools app 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
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:
• Next to the type label on the connection cable
Serial number - Instru-
ment search
Sensor PIN

12
3 Product description
VEGAPULS WL 61 • Probus PA
38062-EN-190128
• On the information sheet of the documentation
Fig. 2: Bluetooth PIN next to the type label
XXXX
Fig. 3: Bluetooth PIN on the information sheet
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
hence to the level. The determined level is converted into an appropri-
ate output signal and outputted as measured value.
3.3 Adjustment
The VEGAPULS WL 61 can be operated by default:
• DD adjustment programs
The VEGAPULS WL 61 with integrated Bluetooth module can be
adjusted wirelessly via standard adjustment instruments:
• Smartphone/tablet (iOS or Android operating system)
• PC/notebook with Bluetooth USB adapter and adjustment soft-
ware PACTware (Windows operating system)
Application area
Functional principle
Adjustment via the signal
cable
Wireless adjustment

13
3 Product description
VEGAPULS WL 61 • Probus PA
38062-EN-190128
1
4
2
3
Fig. 4: Wireless connection to standard operating devices
1 Sensor
2 Smartphone/Tablet
3 Bluetooth USB adapter
4 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

14
3 Product description
VEGAPULS WL 61 • Probus PA
38062-EN-190128
• 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 instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
Storage and transport
temperature
Lifting and carrying

15
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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 IEC/EN 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

16
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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

17
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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.
You can nd drawings of these mounting options in chapter "Dimen-
sions".
Mounting strap - Wall
mounting
Flange mounting

18
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
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,
see following illustration:
1 2
Fig. 12: Mounting strap for screwing to the sensor
1 For angle of inclination in steps
2 For angle of inclination, innitely variable
Depending on the variant selected, the sensor in the bracket can be
swivelled steplessly over 180° or in three steps 0°, 90° and 180°.

19
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
Fig. 13: Adjustment of the angle of inclination
Fig. 14: Turning by fastening in the centre
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

20
4 Mounting
VEGAPULS WL 61 • Probus PA
38062-EN-190128
1
Fig. 15: 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. 16: 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