Vega VEGAWAVE 61 User manual

Operating Instructions
Vibrating level switch for powders
VEGAWAVE 61
- NAMUR
Document ID: 32249

2
Contents
VEGAWAVE 61 • - NAMUR
32249-EN-140625
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 Safety label on the instrument .......................................................................................... 6
2.6 CE conformity................................................................................................................... 6
2.7 SIL conformity .................................................................................................................. 6
2.8 Safety instructions for Ex areas ........................................................................................ 6
2.9 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 7
3.3 Operation ......................................................................................................................... 8
3.4 Storage and transport....................................................................................................... 9
4 Mounting
4.1 General instructions ....................................................................................................... 10
4.2 Mounting instructions ..................................................................................................... 11
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 14
5.2 Connection procedure.................................................................................................... 14
5.3 Wiring plan, single chamber housing.............................................................................. 15
5.4 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 17
6 Setup
6.1 General information........................................................................................................ 18
6.2 Adjustment elements...................................................................................................... 18
6.3 Function chart ................................................................................................................ 19
6.4 Recurring function test ................................................................................................... 20
7 Maintenanceandfaultrectication
7.1 Maintenance .................................................................................................................. 23
7.2 Rectify faults................................................................................................................... 23
7.3 Exchanging the electronics module................................................................................ 24
7.4 How to proceed if a repair is needed .............................................................................. 25
8 Dismount
8.1 Dismounting steps.......................................................................................................... 26
8.2 Disposal ......................................................................................................................... 26
9 Supplement
9.1 Technical data ................................................................................................................ 27
9.2 Dimensions .................................................................................................................... 30

3
Contents
VEGAWAVE 61 • - NAMUR
32249-EN-140625
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
withthedelivery.Yo ucanndthemlistedinchapter"Product descrip-
tion".
Instructions manuals for accessories and replacement parts
Tip:
To ensure reliable setup and operation of your VEGAWAVE 61, we of-
fer accessories and replacement parts.The corresponding documen-
tations are:
•32357 - External housing - VEGAWAVE
•32356 - Electronics module VEGAWAVE series 60
•34296 - Protective cover
Editing status:2014-05-26

4
1 About this document
VEGAWAVE 61 • - NAMUR
32249-EN-140625
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andfaultrectication.Pleasereadthisinforma-
tion 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 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.
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant 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
VEGAWAVE 61 • - NAMUR
32249-EN-140625
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
The VEGAWAVE 61 is a sensor for point level detection.
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.
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.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specichazards,e.g.vesseloverllordamagetosystem
components through incorrect mounting or adjustment.
2.4 General 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awless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 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.
The safety approval markings and safety tips on the device must also
be observed.

6
2 For your safety
VEGAWAVE 61 • - NAMUR
32249-EN-140625
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 CE conformity
ThisdevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByattachingtheCEmark,VEGAprovidesaconrmationof
successfultesting.Yo ucanndtheCEconformitydeclarationinthe
downloadareaof"www.vega.com".
2.7 SIL conformity
VEGAWAVE 61 meets the requirements to the functional safety ac-
cording to IEC 61508. Further information is available in the Safety
Manual"VEGAWAVE series 60".
2.8 Safety instructions for Ex areas
PleasenotetheEx-specicsafetyinformationforinstallationandop-
eration in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
2.9 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llthisobligationbyobservingtheenvironmental
instructions in this manual:
•Chapter"Packaging, transport and storage"
•Chapter"Disposal"

7
3 Product description
VEGAWAVE 61 • - NAMUR
32249-EN-140625
3 Product description
3.1 Conguration
The scope of delivery encompasses:
•VEGAWAVE 61 point level switch
•Documentation
– this operating instructions manual
– SafetyManual"Functional safety (SIL)"(optional)
– Supplementaryinstructionsmanual"Plug connector for level
sensors"(optional)
– Ex-specic"Safety instructions"(withExversions)
– ifnecessary,furthercerticates
The VEGAWAVE 61 consists of the components:
•Housing cover
•Housing with electronics
•Processttingwithtuningfork
1
2
3
Fig. 1: VEGAWAVE 61 - with plastic housing
1 Housing cover
2 Housing with electronics
3 Processtting
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
•Article number
•Serial number
•Technical data
•Article numbers, documentation
•SILidentication(withSILratingexworks)
With the serial number, you can access the delivery data of the instru-
ment via www.vega.com,"VEGA Tools"and"serial number search".
You canndtheserialnumberontheinsideoftheinstrumentaswell
as on the type label on the outside.
3.2 Principle of operation
VEGAWAVE 61 is a point level sensor with tuning fork for point level
detection.
Scope of delivery
Constituent parts
Type label
Application area

8
3 Product description
VEGAWAVE 61 • - NAMUR
32249-EN-140625
It is designed for industrial use in all areas of process technology and
is preferably used for bulk solids.
Typicalapplicationsareoverllanddryrunprotection.Thankstoits
simple and robust measuring system, VEGAWAVE 61 is virtually unaf-
fected by the chemical and physical properties of the bulk solid.
It also works when subjected to strong external vibrations or changing
products.
Solid detection in water
If VEGAWAVE 61 was ordered for solids detection in water, the tuning
fork is set to the density of water. In air or when immersed in water
(density:1g/cm³/0.036lbs/in),VEGAWAVE61signals"uncovered".
Onlywhenthevibratingelementisalsocoveredwithsolids(e.g.
sand,sludge,graveletc.)willthesensorsignal"covered".
Function monitoring
The electronics module of VEGAWAVE 61 monitors continuously the
following criteria:
•Correct vibrating frequency
•Linebreaktothepiezodrive
If one of these faults is detected, the electronics signals this via a
denedcurrenttothesignalconditioninginstrument.Theconnection
cable to the vibrating element is also monitored.
Thetuningforkispiezoelectricallyenergisedandvibratesatits
mechanicalresonancefrequencyofapprox.150Hz.Whenthetuning
fork is submerged in the product, the vibration amplitude changes.
This change is detected by the integrated electronics module and
converted into a switching command.
VEGAWAVE 61 with NAMUR electronics can be connected to dif-
ferentNAMURampliersdependingonyourrequirements.Thespeci-
cationsforNAMURampliersareavailableinthe"Technical data".
Thedataforpowersupplyarespeciedinchapter"Technical data".
3.3 Operation
Withthefactorysetting,productswithadensityof>0.02g/cm³
(0.0008lbs/in³)canbemeasured.Theinstrumentcanalsobe
adaptedtoproductswithlowerdensity>0.008g/cm³(0.0003lbs/in³).
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
•Signallampforindicationoftheswitchingstatus(yellow)
•Potentiometer for adaptation to the product density
•Modeswitchtoselecttheswitchingcondition(reversecharacter-
istics)
•Simulation key
Functional principle
Voltage supply

9
3 Product description
VEGAWAVE 61 • - NAMUR
32249-EN-140625
3.4 Storage and transport
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 carton material. The sensing element is additional-
ly protected with a cardboard cover. For special versions, PE foam or
PE foil is also used. Please dispose of the packaging material through
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
•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 %
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature

10
4 Mounting
VEGAWAVE 61 • - NAMUR
32249-EN-140625
4 Mounting
4.1 General instructions
Make sure that all parts of the instrument coming in direct contact
with the process, especially the sensor element, process seal and
processtting,aresuitablefortheexistingprocessconditions,such
as process pressure, process temperature as well as the chemical
properties of the medium.
You canndthespecicationsinchapter"Technical data"andonthe
nameplate.
In general, VEGAWAVE 61 can be installed in any position.The instru-
ment only has to be mounted in such a way that the vibrating element
is at the height of the desired switching point.
Usetherecommendedcables(seechapter"Connecting to power
supply")andtightenthecablegland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cableentry.Rainandcondensationwatercanthusdraino.Thisap-
plies mainly to outdoor mounting as well as installation in areas where
highhumidityisexpected(e.g.throughcleaningprocesses)oron
cooled or heated vessels.
Fig. 2: Measures against moisture ingress
Do not hold VEGAWAVE 61 on the vibrating element. Especially with
angeandtubeversions,thesensorcanbedamagedbytheweight
of the instrument.
Remove the protective cover just before mounting.
Theprocessttingmustbesealedifthereisgaugeorlowpressurein
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
Themax.permissiblepressureisspeciedinchapter"Technical
data"oronthetypelabelofthesensor.
The vibrating level switch is a measuring instrument and must be
treated accordingly. Bending the vibrating element will destroy the
instrument.
Suitability for the process
conditions
Switching point
Moisture
Transport
Pressure/Vacuum
Handling

11
4 Mounting
VEGAWAVE 61 • - NAMUR
32249-EN-140625
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Use the hexagon above the thread for screwing in.
4.2 Mounting instructions
The vibrating element should protrude into the vessel to avoid
buildup.Forthatreason,avoidusingmountingbossesforanges
andscrewedttings.Thisappliesparticularlytousewithadhesive
products.
Mount the instrument in such a way that the tuning fork does not
protrudedirectlyintothellingstream.
20°
a. b.
Fig. 3: Horizontal installation
a Protective sheet
b Concave protective sheet for abrasive solids
If such an installation location should be necessary, mount a suitable
protective sheet above or in front of the vibrating element, see illustra-
tion"a").
Inabrasivesolids,mountingaccordingtoillustration"b"hasproven.
A spout forms in the concave protective sheet preventing wear of the
protective sheet.
To achieve a very precise switching point, you can install VEGAWAVE
61horizontally.However,iftheswitchingpointcanhaveatoleranceof
a few centimeters, we recommend mounting VEGAWAVE 61 approx.
20° inclined to the vessel bottom to avoid buildup.
Socket
Filling opening
Horizontal installation

12
4 Mounting
VEGAWAVE 61 • - NAMUR
32249-EN-140625
20°
Fig. 4: Horizontal installation
IfVEGAWAVE61ismountedinthellingstream,unwantedfalse
measurement signals can be generated. For this reason, mount
VEGAWAVE 61 at a position in the vessel where no disturbances, e.g.
fromllingopenings,agitators,etc.,canoccur.
To make sure the tuning fork of VEGAWAVE 61 generates as little
resistanceaspossibletoproductow,mountthesensorsothatthe
surfaces are parallel to the product movement.
1
2
Fig. 5: Flow orientation of the tuning fork
1 Marking with screwed version
2 Directionofow
Incaseofhorizontalmountinginadhesiveproducts,thesurfacesof
the tuning fork should be vertical in order to reduce buildup on the
tuningfork.Onthescrewedversionyouwillndamarkingonthe
hexagon. With this, you can check the position of the tuning fork when
Inowingmedium
Productow
Adhesive products

13
4 Mounting
VEGAWAVE 61 • - NAMUR
32249-EN-140625
screwing it in. When the hexagon touches the seal, the thread can still
beturnedbyapprox.halfaturn.Thisissucienttoreachtherecom-
mended installation position.
Inthecaseofangeversions,theforkisalignedwiththeangeholes.
1
Fig. 6: Horizontal installation - marking
1 Marking on top with screwed version
In applications such as grit chambers or settling basins for coarse
sediments, the vibrating element must be protected against damage
withasuitablebae.
Thisbaemustbemanufacturedbyyou.
> 125 mm
(> 5")
> 120 mm
(> 4.7")
Fig.7:Baeforprotectionagainstmechanicaldamage
Baeprotectionagainst
falling rocks

14
5 Connecting to power supply
VEGAWAVE 61 • - NAMUR
32249-EN-140625
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
•Connect only in the complete absence of line voltage
Inhazardousareasyoumusttakenoteoftherespectiveregulations,
conformityandtypeapprovalcerticatesofthesensorsandpower
supply units.
Connect the operating voltage according to the following diagrams.
Take note of the general installation regulations. As a rule, connect
VEGAWAVE61tovesselground(PA),orincaseofplasticvessels,
to the next ground potential. On the side of the instrument housing
there is a ground terminal between the cable entries. This connection
servestodrainoelectrostaticcharges.InExapplications,theinstal-
lationregulationsforhazardousareasmustbegivenpriority.
Thedataforpowersupplyarespeciedinchapter"Technical data".
The instrument is connected with standard two-wire cable without
screen. If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable should
be used.
Use cable with round cross-section. A cable outer diameter of
5…9mm(0.2…0.35in)ensuresthesealeectofthecablegland.
Ifyouareusingcablewithadierentdiameterorcross-section,
exchange the seal or use a suitable cable gland.
Inhazardousareas,useonlyapprovedcableconnectionsforVEGA-
WAVE 61.
Take note of the corresponding installation regulations for Ex applica-
tions.
Cover all housing openings conforming to standard according to
EN 60079-1.
5.2 Connection procedure
With Ex instruments, the housing cover may only be opened if there is
no explosive atmosphere present.
Proceed as follows:
1. Unscrew the housing cover
2. Loosen compression nut of the cable entry gland
3. Removeapprox.10cm(4in)ofthecablemantle,stripapprox.
1cm(0.4in)ofinsulationfromtheendsoftheindividualwires
4. Insert the cable into the sensor through the cable entry
5. Lifttheopeningleversoftheterminalswithascrewdriver(see
followingillustration)
Note safety instructions
Take note of safety
instructions for Ex
applications
Voltage supply
Connection cable
Connection cable
for Ex applications

15
5 Connecting to power supply
VEGAWAVE 61 • - NAMUR
32249-EN-140625
Fig. 8: Connection steps 5 and 6
6. Insert the wire ends into the open terminals according to the wir-
ing plan
7. Press down the opening levers of the terminals, you will hear the
terminal spring closing
8. Check the hold of the wires in the terminals by lightly pulling on
them
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. If necessary, carry out a fresh adjustment
11. Screw the housing cover back on
Theelectricalconnectionisnished.
5.3 Wiring plan, single chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-d
version.

16
5 Connecting to power supply
VEGAWAVE 61 • - NAMUR
32249-EN-140625
5
5
55
1 2
4
3
Fig. 9: Material versions, single chamber housing
1 Plastic (not with EEx d)
2 Aluminium
3 Stainless steel (not with EEx d)
4 Stainless steel, electropolished (not with EEx d)
5 Filter element for pressure compensation or blind plug with version IP 66/
IP 68, 1 bar (not with EEx d)
ForconnectionoftheamplieraccordingtoNAMUR(IEC60947-5-6,
EN50227).Yo ucanndfurtherinformationinthe"Technical data".
Furtherinformationyouwillndinthe"Technical data","Ex technical
data"arespeciedintheattached"Safety instructions manual".
12
+
+
-
-
Fig. 10: Wiring plan, single chamber housing
External simulation key
In addition to the test key on the electronics module, you can connect
an external key to start the test procedure. Connect the key according
to the following wiring plan. In shipping condition, terminals 3 and 4
are bridged.
Foradditionalinformationsee"Recurring function test".
Housing overview
Wiring plan

17
5 Connecting to power supply
VEGAWAVE 61 • - NAMUR
32249-EN-140625
+-
+-
1234
3
2
1
Fig. 11: Wiring plan - External simulation key
1 NAMURamplier
2 Bridge
3 External simulation key
5.4 Wiring plan - version IP 66/IP 68, 1 bar
1
2
Fig. 12: Wire assignment, connection cable
1 brown (+) and blue (-) to power supply or to the processing system
2 Shielding
Wire assignment, con-
nection cable

18
6 Setup
VEGAWAVE 61 • - NAMUR
32249-EN-140625
6 Setup
6.1 General information
Theguresinbracketsrefertothefollowingillustrations.
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
•Potentiometerforadaptationtotheproductdensity(1)
•DILswitchformodeadjustment-min./max.(2)
•Simulationkey(3)
•Signallamp(6)
6.2 Adjustment elements
4
5
6
3
1
2
Simulation
NAMUR IEC 60947-5-6
VB60N
Fig. 13: Electronics and connection compartment - NAMUR output
1 Potentiometer for switching point adaptation
2 DIL switch for characteristics reversal
3 Simulation key
4 Ground terminal
5 Connection terminals
6 Control lamp
With the potentiometer you can adapt the switching point to the solid.
Itisalreadypresetandmustonlybemodiedinspecialcases.
By default, the potentiometer of VEGAWAVE 61 is set to the right stop
(>0.02g/cm³or0.0008lbs/in³).Incaseofverylight-weightsolids,
turnthepotentiometertotheleftstop(>0.008g/cm³or0.0003lbs/
in³).VEGAWAVE61willthusbemoresensitiveandcandetectlight-
weight solids more reliably.
For instruments detecting solids in water, these settings are not
applicable. The switching point adaptation is preset and must not be
changed.
Function/Conguration
Electronics and terminal
compartment
Switching point adapta-
tion (1)

19
6 Setup
VEGAWAVE 61 • - NAMUR
32249-EN-140625
The characteristics reversal can be carried out with the DIL switch.
You canchoosebetweenfallingcharacteristiccurve(switchposition
max.)andrisingcharacteristiccurve(switchpositionmin.).Thisal-
lows you to output the desired current.
Modes
•min.-risingcharacteristiccurve(Highcurrentwhenimmersed)
•max.-fallingcharacteristics(Lowcurrentwhenimmersed)
The NAMUR output can be switched over to falling or rising charac-
teristics(seealso"Function chart").
The simulation key is located in a recess on the upper side of the
electronics module. Push the simulation key with a suitable object
(screwdriver,pen,etc.).
When the key is pushed, a line break between sensor and process-
ing unit is simulated. The signal lamp on the sensor extinguishes.The
measuring system must signal a fault and take on a safe state when
the key is pushed.
Keep in mind that downstream connected instruments will be acti-
vated during operation. This allows you to check the correct function
of the measuring system.
Controllamp(LED)forindicationoftheswitchingcondition
•yellow=Highcurrent≥2.4mA
•dark=Lowcurrent≤1mA
•yellow(ashing)=Failure≤1mA
6.3 Function chart
Level switch VEGAWAVE 61
The following chart provides an overview of the switching conditions
depending on the set mode and the level.
Note:
ThemodesettingontheNAMURampliermustbeselectedinsuch
awaythattheswitchingoutputtakesonsafestateincaseoffailure(I
≤1mA).
Level Signal current -
Sensor
Control lamp
Falling character-
istics max.
≥2.4mA
Falling character-
istics max.
≤1mA
Characteristics reversal
(2)
Simulation key (3)
Signal lamp (6)

20
6 Setup
VEGAWAVE 61 • - NAMUR
32249-EN-140625
Level Signal current -
Sensor
Control lamp
Rising character-
istics min.
≥2.4mA
Rising character-
istics min.
≤1mA
Fault any ≤1mA
ashes
6.4 Recurring function test
According to IEC 61508.
VEGAWAVE61isqualiedinmodeA(overllprotection)forusein
measuringchainsofstageSIL2accordingtoIEC61508(redundant,
stageSIL3).
The following instrument combinations meet the requirements ac-
cording to SIL:
VEGAWAVE 61
•Oscillator WE60N
The recurring test according to IEC 61508 can be carried out by
pushingthesimulationkeyontheelectronicsmoduleorbybriey(>2
seconds)interruptingthecabletothesensor.Thecorrectsequence
of the switching conditions must be monitored via the switching
amplieraswellastheconnectedsystems.Thesensormustneither
beremovednorresponsemustbetriggeredbyllingthevessel.This
applies to VEGAWAVE 61 with NAMUR electronics module WE60N.
You can carry out the function test with the outputted current values
also directly via a safety PLC or a process control system.
A function test can be carried out for measurement setups in conjunc-
tion with the NAMUR electronics module WE60N. For this purpose,
the switching delay must be set to 0.5 s. VEGAWAVE 61 has an inte-
grated simulation key. The simulation key is lowered on the electronics
module. Push the simulation key for > 2 seconds.
If VEGAWAVE 61 is connected to an SPLC, you have to interrupt the
connection cable to the sensor for > 2 seconds.
Afterreleasingthesimulationkeyorbrieyinterruptingtheconnection
cable to the sensor, you can check the complete measuring system
on correct function. A switching procedure is simulated during the
test.
SIL
Recurring function test
Simulation key on the
electronics module