Vega VEGAPULS SR 68 User manual
Quick setup guide
Radar sensor for continuous level
measurement of bulk solids
VEGAPULS SR 68
Modbus and Levelmaster protocol
Document ID: 47164
2
Contents
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Contents
1 For your safety ......................................................................................................................... 3
1.1 Authorised personnel ....................................................................................................... 3
1.2 Appropriate use................................................................................................................ 3
1.3 Warning about incorrect use............................................................................................. 3
1.4 General safety instructions............................................................................................... 3
1.5 EU conformity................................................................................................................... 4
1.6 NAMUR recommendations .............................................................................................. 4
1.7 Radio license for Europe .................................................................................................. 4
1.8 Radio license for USA ...................................................................................................... 4
1.9 Environmental instructions ............................................................................................... 5
2 Product description ................................................................................................................. 6
2.1 Conguration.................................................................................................................... 6
3 Mounting................................................................................................................................... 8
3.1 Mounting preparations - Parabolic antenna...................................................................... 8
3.2 Mounting preparations ..................................................................................................... 9
3.3 Mounting instructions ..................................................................................................... 10
4 Connecting to power supply and bus system .................................................................... 12
4.1 Connecting..................................................................................................................... 12
4.2 Wiring plan ..................................................................................................................... 13
5 Set up the sensor with the display and adjustment module ............................................. 15
5.1 Insert display and adjustment module............................................................................ 15
5.2 Parameter adjustment .................................................................................................... 15
5.3 Menu overview ............................................................................................................... 18
6 Supplement ............................................................................................................................ 21
6.1 Technical data ................................................................................................................ 21
Information:
This quick setup guide enables quick setup and commissioning of
your instrument.
Youcanndsupplementaryinformationinthecorresponding,more
detailed Operating Instructions Manual as well as the Safety Manual
thatcomeswithinstrumentswithSILqualication.Thesemanualsare
available in the download area of "www.vega.com".
Operating instructions VEGAPULS SR 68 - Modbus and Level-
master protocol: Document-ID 41371
Editing status of the quick setup guide: 2018-02-16
3
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
1 For your safety
1.1 Authorised personnel
All operations described in this documentation 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.
1.2 Appropriate use
VEGAPULS SR 68 is a sensor for continuous level measurement.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
1.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contaminationcanresult.Also,theprotectivecharacteristicsofthe
instrument can be impaired.
1.4 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
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
iftheinstrumentmalfunctions,theoperatorhastoimplementsuitable
measures to make sure the instrument is functioning properly.
Duringtheentiredurationofuse,theuserisobligedtodeterminethe
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
Thesafetyinstructionsinthisoperatinginstructionsmanual,thena-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
Forsafetyandwarrantyreasons,anyinvasiveworkonthedevice
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
Toavoidanydanger,thesafetyapprovalmarkingsandsafetytipson
the device must also be observed and their meaning looked up in this
operating instructions manual.
4
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Dependingontheinstrumentversion,theemittingfrequenciesarein
theC,KorWbandrange.Thelowemissionpowerisfarbelowthe
internationallyapprovedlimitvalues.Whenusedcorrectly,thedevice
poses no danger to health.
1.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
YoucanndtheEUconformitydeclarationonourwebsiteunder
www.vega.com/downloads.
Electromagnetic compatibility
Instrumentsinfour-wireorEx-d-iaversionaredesignedforuseinan
industrialenvironment.Nevertheless,electromagneticinterference
from electrical conductors and radiated emissions must be taken into
account,asisusualwithclassAinstrumentsaccordingtoEN61326-
1.Iftheinstrumentisusedinadierentenvironment,theelectromag-
netic compatibility to other instruments must be ensured by suitable
measures.
1.6 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany.The published NAMUR recommendations are
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
• NE107-Self-monitoringanddiagnosisofelddevices
For further information see www.namur.de.
1.7 Radio license for Europe
The instrument was tested according to the latest issue of the follow-
ingharmonizedstandards:
• EN 302372 - Tank Level Probing Radar
It is hence approved for use inside closed vessels in countries of the
EU.
UseisalsoapprovedinEFTAcountries,providedtherespective
standards have been implemented.
Foroperationinsideofclosedvessels,pointsatofinannexEof
EN302372mustbefullled.
1.8 Radio license for USA
ThisapprovalisonlyvalidforUSA.Hencethefollowingtextisonly
available in the English language.
5
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:
• Thisdevicemaynotcauseinterference,and
• Thisdevicemustacceptanyinterference,includinginterference
that may cause undesired operation of the device
Thisdeviceisapprovedforunrestricteduseonlyinsideclosed,sta-
tionaryvesselsmadeofmetal,reinforcedberglassorconcrete.
Changesormodicationsnotexpresslyapprovedbythemanufac-
turer could void the user’s authority to operate this equipment.
1.9 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.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfullthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"
6
2 Product description
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
2 Product description
2.1 Conguration
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
2
1
15
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 numbers, instrument documentation
15 Reminder to observe the instrument documentation
The type label contains the serial number of the instrument. With it
youcanndthefollowinginstrumentdataonourhomepage:
• Product code (HTML)
• Delivery date (HTML)
• Order-specicinstrumentfeatures(HTML)
• Operating instructions and quick setup guide at the time of ship-
ment (PDF)
• Order-specicsensordataforanelectronicsexchange(XML)
• Testcerticate(PDF)-optional
Go to "www.vega.com","Instrument search (serial number)". Enter
the serial number.
Alternatively,youcanaccessthedataviayoursmartphone:
• Download the VEGA Tools app from the "Apple App Store" or the
"Google Play Store"
• ScantheDataMatrixcodeonthetypelabeloftheinstrumentor
• Enter the serial number manually in the app
Type label
Serial number - Instru-
ment search
7
2 Product description
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
This operating instructions manual applies to the following instrument
versions:
• Hardware from 2.1.0
• Software from 4.5.1
Scope of this operating
instructions manual
8
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
3 Mounting
3.1 Mounting preparations - Parabolic antenna
The instrument is also available in versions where the antenna has
adiameterlargerthantheprocesstting(thread,ange).Withsuch
versionstheantennamustbedisconnectedfromtheprocesstting
before mounting. Proceed as follows:
1. ClampVEGAPULSSR68withtheange,e.g.inabenchvice
2. Holdtheconnectionpiece(1)withawrenchontheatsurfaces
(widthacrossats22mm)
3. Loosen counter nut (3) completely with a wrench (width across
ats36mm)inthedirectionoftheantenna
4. Loosen compression nut (2) completely with a wrench (width
acrossats41mm)inthedirectionoftheantenna
5. Removetheparabolicantenna(4)axially
6. Mountsensorangeontheadapterangeandfastenittightly
7. Check if the O-ring seal is present on the connection piece and
make sure it is not damaged.
Note:
AdamagedO-ringsealmustbereplaced:FKM(SHSFPM70C3
GLT),FFKM(Kalrez6375)
8. Remount the parabolic antenna (4)
9. Fastencompressionnut(2)withawrench(widthacrossats41),
max.torqueseechapter"Technical data"
10. Fastencounternut(3)withawrench(widthacrossats36),max.
torque see chapter "Technical data"
Note:
Ontheversionwithrinsingairconnection,makesurethattheholes
intheantennaandintheprocessttingcoincide.Thisensuresasuf-
cientairow(theairisledthroughtheholestothefeedsystem.A
rinsing of the whole parabolic antenna is not intended).
1
2
3
4
Fig. 2: Dismounting, parabolic antenna
1 Connection piece
2 Compression nut
3 Counter nut
4 Parabolic antenna
9
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
3.2 Mounting preparations
The instrument is also available in versions with an antenna whose
diameterislargerthantheprocesstting(thread,ange).Insuch
casestheantennamustbedisconnectedfromtheprocesstting
before mounting.
Proceed as follows:
1. Loosenthehexagonsocketscrews(3)ontheantennasocket
withanAllenwrench(size3)
2. Remove the antenna (4)
Note:
The plastic cone may not be pulled out of the antenna socket.
3. Insert the antenna from below into the vessel socket and secure it
againstfallingo
4. Retightentheantennawithhexagonscrewstotheantenna
socket;max.torqueseechapter"Technical data"
Note:
Theradarsensorwithrinsingairconnectionorwithantennaexten-
sionhasanotchontheantennasocketforpolarization.Thisnotch
mustbealignedwiththemarkingontheprocesstting.
4
3
5
1
2
Fig. 3: Dismounting of the horn antenna
1 Markingontheprocesstting
2 Marking at the antenna socket
3 Screw locking device
4 Hexagon socket screws
5 Antenna
Caution:
A secure hold of the antenna is only ensured with the untwist guard.
The untwist guards inserted on site must hence be used again.
Dependingontemperaturerangeandantennamaterial,theseare
spring rings according to DIN 217 or wedge lock washers according
to DIN 25 201.
Horn antenna
10
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Proceed as follows:
1. ClampVEGAPULSSR68withtheange,e.g.inabenchvice
2. Holdtheconnectionpiece(1)withawrenchontheatsurfaces
(widthacrossats22mm)
3. Loosen counter nut (3) completely with a wrench (width across
ats36mm)inthedirectionoftheantenna
4. Loosen compression nut (2) completely with a wrench (width
acrossats41mm)inthedirectionoftheantenna
5. Removetheparabolicantenna(4)axially
6. Mountsensorangeontheadapterangeandfastenittightly
7. Check if the O-ring seal is present on the connection piece and
make sure it is not damaged.
Note:
AdamagedO-ringsealmustbereplaced:FKM(SHSFPM70C3
GLT),FFKM(Kalrez6375)
8. Remount the parabolic antenna (4)
9. Fastencompressionnut(2)withawrench(widthacrossats41),
max.torqueseechapter"Technical data"
10. Fastencounternut(3)withawrench(widthacrossats36),max.
torque see chapter "Technical data"
Note:
Ontheversionwithrinsingairconnection,makesurethattheholes
intheantennaandintheprocessttingcoincide.Thisensuresasuf-
cientairow(theairisledthroughtheholestothefeedsystem.A
rinsing of the whole parabolic antenna is not intended).
1
2
3
4
Fig. 4: Dismounting, parabolic antenna
1 Connection piece
2 Compression nut
3 Counter nut
4 Parabolic antenna
3.3 Mounting instructions
1. Distancefromthevesselwall>200mm,theantennashould
protrude > 10 mm into the vessel
Parabolic antenna
Mounting
11
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
ca. 10 mm
200 mm
(7.87
")
Fig. 5: Distance of the antenna to the vessel wall/vessel ceiling
2. Note min. socket diameter depending on the socket length
3. Note the instructions for sealing
For further information see chapter "Mounting".
12
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
4 Connecting to power supply and bus
system
4.1 Connecting
The voltage supply and signal output are connected via the spring-
loaded terminals in the housing.
Connection to the display and adjustment module or to the interface
adapter is carried out via contact pins in the housing.
Information:
The terminal block is pluggable and can be removed from the
electronics.Todothis,lifttheterminalblockwithasmallscrewdriver
andpullitout.Whenreinsertingtheterminalblock,youshouldhearit
snap in.
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
3. Removeapprox.10cm(4in)ofthecablemantle(signaloutput),
stripapprox.1cm(0.4in)insulationfromtheendsoftheindi-
vidual wires
4. Insert the cable into the sensor through the cable entry
Fig. 6: Connection steps 5 and 6
5. Insert the wire ends into the terminals according to the wiring plan
Information:
Solidcoresaswellasexiblecoreswithwireendsleevesareinsert-
eddirectlyintotheterminalopenings.Incaseofexiblecoreswithout
endsleeves,presstheterminalfromabovewithasmallscrewdriver,
theterminalopeningisthenfree.Whenthescrewdriverisreleased,
the terminal closes again.
Connection technology
Connection procedure
13
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
6. Check the hold of the wires in the terminals by lightly pulling on
them
7. Connectthescreentotheinternalgroundterminal,connectthe
outer ground terminal to potential equalisation in case of power
supply via low voltage
8. Connect the lead cable for power supply in the same way accord-
ingtothewiringplan,inadditionconnectthegroundconductorto
the inner ground terminal when powered with mains voltage.
9. Tighten the compression nut of the cable glands.The seal ring
must completely encircle the cables
10. Screw the housing lid back on
Theelectricalconnectionisnished.
Information:
The terminal blocks are pluggable and can be removed from the
housinginsert.Todothis,lifttheterminalblockwithasmallscrewdriv-
erandpullitout.Wheninsertingtheterminalblockagain,youshould
hear it snap in.
4.2 Wiring plan
2
1
Fig. 7: Position of connection compartment (Modbus electronics) and electron-
ics compartment (sensor electronics)
1 Terminal compartment
2 Electronics compartment
5678
4...20mA
2
12
+
( ) (-)
11
Fig. 8: Electronics compartment - double chamber housing
1 Internal connection to the terminal compartment
2 For display and adjustment module or interface adapter
Overview
Electronics compartment
14
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Information:
Theconnectionofanexternaldisplayandadjustmentunitisnotpos-
sible with this double chamber housing.
+
+
power supply
MODBUS
D0
D1
IS GND
USB
1
2
4 3
1345
2off on
( )
(
)
(-)
(-)
Fig. 9: Terminal compartment
1 USB interface
2 Slideswitchforintegratedterminationresistor(120Ω)
3 Modbus signal
4 Voltage supply
Terminal Function Polarity
1 Voltage supply +
2 Voltage supply -
3 Modbus signal D0 +
4 Modbus signal D1 -
5 Function ground when installing ac-
cording to CSA (Canadian Standards
Association)
Terminal compartment
15
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
5 Set up the sensor with the display and
adjustment module
5.1 Insert display and adjustment module
The display and adjustment module can be inserted into the sensor
andremovedagainatanytime.Youcanchooseanyoneoffourdier-
ent positions - each displaced by 90°. It is not necessary to interrupt
the power supply.
Proceed as follows:
1. Unscrew the housing lid
2. Place the display and adjustment module on the electronics in the
desired position and turn it to the right until it snaps in.
3. Screw housing lid with inspection window tightly back on
Disassembly is carried out in reverse order.
Thedisplayandadjustmentmoduleispoweredbythesensor,anad-
ditional connection is not necessary.
Fig. 10: Insertion of the display and adjustment module
Note:
Ifyouintendtoretrottheinstrumentwithadisplayandadjustment
moduleforcontinuousmeasuredvalueindication,ahigherlidwithan
inspection glass is required.
5.2 Parameter adjustment
1. Go to the menu "Setup" via the display and adjustment module.
2. Select in the menu item "Medium" the medium of your applica-
tion,forexample"Powder/Dust".
Set parameters
16
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
3. Select in the menu item "Application"thevessel,theapplication
andthevesselform,forexample,silo.
4. Carry out the adjustment in the menu items "Min. adjustment" and
"Max. adjustment".
The radar sensor as a distance measuring instrument measures the
distance from the sensor to the product surface. For indication of the
reallevel,anallocationofthemeasureddistancetothepercentage
height must be carried out.
2
1
3
100%
0%
1 m
(39.37
")
35 m
(1378
")
Fig. 11: Parameterization example
1 Min. level ≙max. meas. distance
2 Max. level ≙min. meas. distance
Forthisadjustment,thedistanceisenteredformin.andmax.level.
Ifthesevaluesarenotknown,anadjustmentwithdistances,for
example,of10%and90%isalsopossible.Startingpointforthese
distancespecicationsisalwaysthesealsurfaceofthethreador
ange.
Parameterization example
17
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
The function "Echo curve memory" makes it possible to save the
echocurveatthetimeofsetup.Thisisgenerallyrecommended,and
it is absolutely necessary if you want to use the Asset Management
functions.Ifpossible,thecurveshouldbesavedwithalowlevelinthe
vessel.
WiththeadjustmentsoftwarePACTwareandaPC,ahighresolution
echocurvecanbedisplayedandusedtorecognizesignalchanges
duringoperation.Inaddition,theechocurveofsetupcanbedis-
played in the echo curve window and compared with the current echo
curve.
Thefollowingcircumstancescauseinterferingreectionsandcan
inuencethemeasurement:
• High mounting sockets
• Vessel internals such as struts
• Agitators
• Buildup or welded joints on vessel walls
Note:
Afalsesignalsuppressiondetects,marksandsavesthesefalse
signals to ensure that they are ignored in the level measurement.
This should be done with the lowest possible level so that all potential
interferingreectionscanbedetected.
Proceed as follows:
1. Select with [->] the menu item "False signal suppression" and
conrmwith[OK].
2. Conrm3-timeswith[OK] and enter the actual distance from the
sensor to the product surface.
3. All interfering signals in this range are detected by the sensor and
storedafterbeingconrmedwith[OK].
Diagnostics - Echo curve
memory
Additional settings - False
signal suppression
18
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Note:
Checkthedistancetotheproductsurface,becauseifanincorrect
(toolarge)valueisentered,theexistinglevelwillbesavedasafalse
signal.The level would then no longer be detectable in this area.
Ifafalsesignalsuppressionhasalreadybeensavedinthesensor,
the following menu window appears when selecting "False signal
suppression":
Delete: An already created false signal suppression will be com-
pletely deleted. This is useful if the saved false signal suppression no
longer matches the metrological conditions in the vessel.
Extend:isusedtoextendanalreadycreatedfalsesignalsuppres-
sion.This is useful if a false signal suppression was carried out with
too high a level and not all false signals could be detected.When
selecting "Extend",thedistancetotheproductsurfaceofthecreated
false signal suppression is displayed. This value can now be changed
andthefalsesignalsuppressioncanbeextendedtothisrange.
5.3 Menu overview
Menu item Parameter Default setting
Measurement
loop name
Sensor
Application Application level
Units Unit of measure-
ment
mbar (with nominal measuring range
≤400mbar)
bar (with nominal measuring ranges
≥1bar)
Temperature unit °C
Position correc-
tion
0.00 bar
Adjustment Zero/Min. adjust-
ment
0.00 bar
0.00%
Span/Max.adjust-
ment
Nominal measuring range in bar
100.00%
Damping Integration time 1.0 s
Linearization Characteristics Linear
Setup
19
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Menu item Parameter Default setting
Current output Current output -
Mode
Output characteristics
4 … 20 mA
Reaction when malfunctions occur
≤3.6mA
Current output -
Min./Max.
3.8 mA
20.5 mA
Lock adjustment Released
Menu item Default setting
Menu language Order-specic
Displayed value 1 Currentoutputin%
Displayed value 2 Ceramic measuring cell: Measuring cell tempera-
ture in °C
Metallic measuring cell: Electronics temperature
in °C
Display format 1 and 2 Numberofpositionsafterthedecimalpoint,auto-
matically
Backlight Switched on
Menu item Parameter Default setting
Sensor status -
Peak value Pressure Actual measured value
Temperature Actual temperature values from meas-
uringcell,electronics
Simulation Pressure
Menu item Parameter Default setting
PIN 0000
Date/Time Actual date/Actual time
Reset -
Copy in-
strument
settings
-
Special pa-
rameters
-
Scaling Scalingsize Volume in l
Scaling format 0%correspondsto0l
100%correspondsto0l
Display
Diagnostics
Additional adjustments
20
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-180226
Menu item Parameter Default setting
Current out-
put 1
Current output - Meas. vari-
able
Lin. percent - Level
Current output - Adjustment 0…100%correspondto
4 … 20 mA
Current out-
put 2
Current output - Meas. vari-
able
Measuring cell temperature
(ceramic measuring cell)
Current output - Adjustment 0 … 100 °C correspond to
4 … 20 mA
Menu item Parameter
Device name Device name
Instrument version Hardware and software version
Factory calibration
date
Date
Sensor characteristics Order-speciccharacteristics
Info
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5
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