Vega VEGAPULS WL 61 User manual

Operating Instructions
VEGAPULS WL 61
Profibus PA
Document ID:
38062
Radar

Contents
1About this document
1.1Function.................................. 4
1.2Target group .............................. 4
1.3Symbolism used............................ 4
2For your safety
2.1Authorised personnel ........................ 5
2.2Appropriate use ............................ 5
2.3Warning about misuse ....................... 5
2.4General safety instructions . . . . . . . . . . . . . . . . . . . . 5
2.5CE conformity ............................. 6
2.6Fulfillment of NAMUR recommendations . . . . . . . . . . 6
2.7Radio approval for Europe . . . . . . . . . . . . . . . . . . . . 6
2.8Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 8
3.3Packaging,transport and storage ............... 8
4Mounting
4.1General instructions ......................... 9
4.2Mounting versions .......................... 9
4.3Mounting preparations,mounting strap. . . . . . . . . . . . 12
4.4Mounting instructions ........................ 13
5Connecting to power supply
5.1Preparing the connection ..................... 19
5.2Wiring plan................................ 20
5.3Switch on phase............................ 20
6Set up
6.1DD adjustment programs ..................... 21
7Diagnosis and service
7.1Maintenance .............................. 22
7.2Measured value and event memory . . . . . . . . . . . . . . 22
7.3Status messages ........................... 23
7.4Rectify faults .............................. 26
7.5How to proceed in case of repair. . . . . . . . . . . . . . . . 26
8Dismounting
8.1Dismounting steps .......................... 28
8.2Disposal ................................. 28
9Supplement
9.1Technical data ............................. 29
9.2Dimensions ............................... 34
2VEGAPULS WL 61 •Profibus PA
Contents
38062-EN-101005

Safety instructions for Ex areas
Please note the Ex-specific safety information for installation and
operation in Ex areas.These safety instructions are part of the
operating instructions manual and come with the Ex-approved
instruments.
VEGAPULS WL 61 •Profibus PA 3
Contents
38062-EN-101005

1About this document
1.1Function
This operating instructions manual provides all the information you
need for mounting,connection and setup as well as important
instructions for maintenance and fault rectification.Please read this
information before putting the instrument into operation and keep this
manual accessible in the immediate vicinity of the device.
1.2Target group
This operating instructions manual is directed to trained qualified
personnel.The contents of this manual should be made available to
these personnel and put into practice by them.
1.3Symbolism 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.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow indicates a single action.
1Sequence
Numbers set in front indicate successive steps in a procedure.
4VEGAPULS WL 61 •Profibus PA
1About this document
38062-EN-101005

2For your safety
2.1Authorised 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.
2.2Appropriate use
VEGAPULS WL 61 is a sensor for continuous level measurement.
You can find detailed information on the application range in chapter
"Product description".
Operational reliability is ensured only if the instrument is properly used
according to the specifications in the operating instructions manual as
well as possible supplementary instructions.
2.3Warning about misuse
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards,e.g.vessel overfill or damage to system
components through incorrect mounting or adjustment.
2.4General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and guidelines.The instrument must only be operated in a
technically flawless and reliable condition.The operator is responsible
for the trouble-free operation of the instrument.
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
regulations.
The safety instructions in this operating instructions manual,the
national 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.Arbitrary
conversions or modifications are explicitly forbidden.
The safety approval markings and safety tips on the device must also
be observed.
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2For your safety
38062-EN-101005

Depending on the instrument version,the emitting frequencies are in
the Cor Kband range.The low emitting frequencies are far below the
internationally approved limit values.When used correctly,there is no
danger to health.
2.5CE conformity
The device fulfills the legal requirements of the applicable EC
guidelines.By attaching the CE mark,VEGA provides a confirmation
of successful testing.You can find the CE conformity declaration in the
download area of www.vega.com.
2.6Fulfillment of NAMUR recommendations
The device fulfills the requirements of the applicable NAMUR
recommendations.
2.7Radio approval for Europe
The instrument is approved according to EN 302372-1/2(2006-04)for
use in closed vessels as well as according to EN 302729 for use in the
open air.
2.8Environmental 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 protection.
The environment management system is certified according to DIN
EN ISO 14001.
Please help us fulfil this obligation by observing the environmental
instructions in this manual:
lChapter "Packaging,transport and storage"
lChapter "Disposal"
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38062-EN-101005

3Product description
3.1Structure
The type label contains the most important data for identification and
use of the instrument:
2
1
12
11
5
3
6
4
7
8
9
10
Fig.1:Structure of the type label (example)
1Instrument type
2Product code
3Approvals
4Electronics
5Protection rating
6Measuring range
7Process and ambient temperature,process pressure
8Material,wetted parts
9Hardware and software version
10 Order number
11 Serial number of the instrument
12 ID numbers,instrument documentation
The serial number on the type label of the instrument allows you to call
up the order data,operating instructions manuals,sensor data for the
service DTM as well as the test certificate (depending on the
instrument). To do this,open under www.vega.com,"VEGA Tools"and
"serial number search".
This operating instructions manual applies to the following instrument
versions:
lHardware from 1.0.0
lSoftware from 4.4.0
The scope of delivery encompasses:
lRadar sensor
lDocumentation
-this operating instructions manual
-Ex-specific"Safety instructions"(with Ex versions)
Type label
Serial number
Scope of the operating
instructions manual
Scope of delivery
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3Product description
38062-EN-101005

-if necessary,further certificates
3.2Principle of operation
The radar sensor VEGAPULS WL 61 is particularly suitable for use in
pump stations and rain overflow basins,for flow measurement in open
flumes as well as for gauge measurement.The high housing protection
rating of the instrument allows outdoor mounting.
The antenna of the radar sensor emits short radar pulses with a
duration of approx.1ns.These pulses are reflected by the product
and received by the antenna as echoes.The running 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
appropriate output signal and outputted as measured value.
3.3Packaging,transport and storage
Your instrument was protected by packaging during transport.Its
capacity to handle normal loads during transport is assured by a test
according to DIN EN 24180.
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 under 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
concealed 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:
lNot in the open
lDry and dust free
lNot exposed to corrosive media
lProtected against solar radiation
lAvoiding mechanical shock and vibration
lStorage and transport temperature see chapter "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Application area
Functional principle
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
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3Product description
38062-EN-101005

4Mounting
4.1General instructions
Make sure that all parts of the instrument exposed to the process,in
particular the antenna,seal and process fitting,are suitable for the
existing process conditions.These include above all the process
pressure,process temperature as well as the chemical properties of
the medium.
You can find the specifications in chapter "Technical data"or on the
type label.
4.2Mounting versions
The most simple way to mount the instrument is via a straining clamp.
For this purpose,the connection cable is provided with a strain relief
rope of Kevlar.This rope must be anchored separately.
In order to avoid faulty measured values,make sure that the sensor
does not oscillate.
Fig.2:Mounting via the connection cable,for example,via a straining clamp
Suitability for the pro-
cess conditions
Straining clamp
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38062-EN-101005

For a rigid mounting,a mounting bracket with opening for thread
G1½A,e.g.from the VEGA product range,is recommended.The
mounting the sensor in the bracket is carried out via a G1½Acounter
nut of plastic.Take note of chapter 4.4"Mounting instructions"for the
distance to the wall.
> 200 mm
(7.87 ")
Fig.3:Mounting via a mounting bracket
The optional mounting strap allows sensor mounting on a bracket or a
ceiling.Vertical mounting is the standard method.This allows rotating
the sensor for optimal alignment.
Mounting bracket
Mounting strap
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Fig.4:Mounting via a mounting strap -vertically
In some cases,e.g.in closed rain overflow basins with narrow space
between ceiling and water surface,horizontal mounting is recom-
mended.For this purpose,there is a mounting strap with 170 mm
length available in the VEGA product line.The radar impulses are
deflected via a 45°reflector,e.g.a stainless steel sheet,to the water
surface.
> 50 mm
(1.97")
45°
Fig.5:Mounting via a mounting strap -horizontally
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4Mounting
38062-EN-101005

For mounting the instrument on a socket or a manhole cover,an
unassembled combination compression flange is optionally available
for DN 80 (ASME 3"or JIS 80), also as a retrofitting part.As an
alternative,the instrument can be already supplied with a tight,fix-
mounted adapter flange from DN 100 (ASME 4"or JIS 100).
You can find drawings of these mounting options in chapter
"Dimensions".
Fig.6:Mounting by means of an adapter flange,for example,on a manhole top.
4.3Mounting preparations,mounting strap
The optional strap is supplied unassembled and must be screwed to
the sensor before setup with three hexagon socket screws M5x10 and
spring washers.Max.torque,see chapter "Technical data".Required
tools:Allen wrench size 4.
There are two different versions for screwing the strap to the sensor.
Depending on the selected version,the sensor can be rotated infinitely
variably in the strap by 180°or in three steps 0°,90°and 180°.
Fig.7:Turning by fastening in the centre
Flange
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Fig.8:Adjustment of the angle of inclination
4.4Mounting instructions
The emitted radar impulses of the radar sensor are electromagnetic
waves.The polarisation plane is the direction of the electrical wave
component.By turning the instrument in the connection flange or
mounting strap,the polarisation can be used to reduce the effects of
false echoes.
The position of the polarisation level is marked by marking bars on the
instrument.
1
Fig.9:Position of the polarisation plane of VEGAPULS WL 61
1Marking bar
Polarisation plane
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4Mounting
38062-EN-101005

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 keep this distance you should carry out a false echo
storage before setup.This applies mainly if buildup on the vessel wall
is expected.In this case,we recommend repeating a false echo
storage later with existing buildup.
> 200 mm
(7.87 ")
Fig.10:Mounting of the radar sensor on round vessel tops
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel,as measurement is then possible
down to the lowest point of the vessel bottom.
Mounting position
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Fig.11:Mounting of the radar sensor on vessels with conical bottom
Do not mount the instrument in or above the filling stream.Make sure
that you detect the product surface,not the inflowing product.
Fig.12:Mounting of the radar sensor with inflowing medium
Approximate values of the socket heights are shown in the following
illustration.The socket end should be smooth and burr-free,if possible
also rounded.Aftr mounting,you have to carry out a false signal
memory during the parameter adjustment.
Inflowing medium
Socket
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38062-EN-101005

d
h
h
300 mm / 11.8
"
d
80 mm / 3.15
"
100 mm / 4
"
125 mm / 5
"
150 mm / 6 "
500 mm / 19.69
"
600 mm / 23.6
"
800 mm / 31.5
"
Fig.13:Deviating socket dimensions
Direct the sensor as perpendicular as possible to the product surface
to achieve optimum measurement results.
Fig.14:Orientation of the sensor
The mounting location of the radar sensor should be a place where no
other equipment or fixtures cross the path of the microwave signals.
Vessel installations,such as e.g.ladders,limit switches,heating
spirals,struts,etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring site that the radar sensor
has a "clear view"to the measured product.
In case of existing vessel installations,a false echo storage should be
carried out during setup.
If large vessel installations such as struts or supports cause false
echoes,these can be attenuated through supplementary measures.
Small,inclined sheet metal baffles above the installations scatter the
radar signals and prevent direct interfering reflections.
Sensor orientation
Vessel installations
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Fig.15:Cover smooth profiles with deflectors
Through the action of filling,stirring and other processes in the vessel,
compact foams that considerably damp the emitted signals may form
on the product surface.
If foams are causing measurement errors,the biggest possible radar
antennas,the electronics with increased sensitivity or low frequency
radar sensors (Cband)should be used.
As an alternative,sensors with guided microwave can be used.These
are unaffected by foam generation and are best suited for such
applications.
The short examples give you introductory information on the flow
measurement.Detailed planning information is available from flume
manufacturers and in special literature.
hmax dmin
≥ 2 mm x hmax
90°
4
3 ... 4 hmax
≥ 50 mm
90°
2 3
1
Fig.16:Flow measurement with rectangular flume:d
min.
=min.distance of the
sensor (see chapter "Technical data"); h
max.
=max.filling of the rectangular
flume
1Overflow orifice (side view)
2Headwater
3Tail water
4Overfall orifice (view from bottom water)
In general,the following points must be observed:
lInstall the sensor on the headwater side
Foam generation
Flow measurement with
rectangular flume
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38062-EN-101005

lInstallation in the centre of the flume and vertical to the liquid
surface
lDistance to the overfall orifice
lDistance of orifice opening above ground
lMin.distance of the orifice opening to bottom water
lMin.distance of the sensor to max.storage level
2
3 ... 4 x hmax
90°
hmax
d
1
B
Fig.17:Flow measurement with Khafagi-Venturi flume:d=Min.distance to
sensor;h
max.
=max.filling of the flume;B=tightest constriction in the flume
1Position sensor
2Venturi flume
In general,the following points must be observed:
lInstallation of the sensor at the inlet side
lInstallation in the centre of the flume and vertical to the liquid
surface
lDistance to the Venturi flume
lMin.distance of the sensor to max.storage level
Flow measurement with
Khafagi Venturi flume
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5Connecting to power supply
5.1Preparing the connection
Always keep in mind the following safety instructions:
lConnect only in the complete absence of line voltage
lIf overvoltages are expected,install overvoltage arresters
Power supply and current signal are carried on the same two-wire
cable.The voltage supply range can differ depending on the
instrument version.
The data for power supply are specified in chapter "Technical data".
Provide a reliable separation between the supply circuit and the mains
circuits according to DIN VDE 0106 part 101.
Keep in mind the following additional influences on the operating
voltage:
lOutput voltage of the power supply unit can be lower under
nominal load (with a sensor current of 20.5mAor 22 mAin case of
fault message)
lInfluence of additional instruments in the circuit (see load values in
chapter "Technical data")
The signal conditioning instruments VEGAMET and VEGASCAN have
digital sensor recognition.When connecting VEGAPULS WL 61,an
up-to-date software version of the signal conditioning instrument is
required for the signal conditioning instrument.For a software update
go to "Software"under "www.vega.com/downloads".
Connection is made with screened cable according to the Profibus
specification.Power supply and digital bus signal are carried over the
same two-wire connection cable.
Use cable with round cross-section.Acable outer diameter of 5…9mm
(0.2…0.35 in)ensures the seal effect of the cable gland.If you are
using cable with a different diameter or cross-section,exchange the
seal or use a suitable cable gland.
Please make sure that your installation is carried out according to the
Profibus specification.In particular,make sure that the termination of
the bus is done with appropriate terminating resistors.
You can find detailed information of the cable specification,installation
and topology in the "Profibus PA -User and Installation Guideline"on
www.profibus.com.
Safety instructions
Voltage supply
Connection to signal
conditioning instru-
ments
Connection cable
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5Connecting to power supply
38062-EN-101005

5.2Wiring plan
+
-
1
2
Fig.18:Wire assignment fix-connected connection cable
1brown (+)and blue (-) to power supply or to the processing system
2Shielding
5.3Switch on phase
After connecting the instrument to power supply or after a voltage
recurrence,the instrument carries out a self-check for approx.30 s:
lInternal check of the electronics
lIndication of the instrument type,hardware and software version,
measurement loop name on the display or PC
lIndication of the status message "F105 Determine measured
value"on the display or PC
lThe output signal jumps to the set error current
As soon as a plausible measured value is found,the corresponding
current is outputted to the signal cable.The value corresponds to the
actual level as well as the settings already carried out,e.g.factory
setting.
Wire assignment con-
nection cable
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