Vega PULS 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-140129
Contents
1 For your safety
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 CE conformity................................................................................................................... 4
1.6 NAMUR recommendations .............................................................................................. 4
1.7 Radio license for Europe .................................................................................................. 4
1.8 Radio license for USA/Canada......................................................................................... 4
1.9 Environmental instructions ............................................................................................... 5
2 Product description
2.1 Conguration.................................................................................................................... 6
3 Mounting
3.1 Mounting preparations - Parabolic antenna...................................................................... 8
3.2 Mounting preparations - Horn antenna............................................................................. 9
3.3 Mounting instructions ....................................................................................................... 9
4 Connecting to power supply and bus system
4.1 Connection..................................................................................................................... 11
4.2 Wiring plan ..................................................................................................................... 12
5 Set up the sensor with the display and adjustment module
5.1 Insert display and adjustment module............................................................................ 14
5.2 Parameter adjustment .................................................................................................... 15
6 Supplement
6.1 Technical data ................................................................................................................ 19
Information:
This quick setup guide enables a quick setup of your instrument.
Youcanndfurtherinformationinthecorresponding,comprehensive
operating instructions. This manual is available on the supplied DVD
or in the download area under "www.vega.com".
Operating instructions VEGAPULS SR 68 - Modbus and Level-
master protocol: Document-ID 41371
Editing status of the quick setup guide: 2014-01-24

3
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
1 For your safety
1.1 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.
1.2 Appropriate use
VEGAPULS SR 68 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.
1.3 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.
1.4 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.
Dependingontheinstrumentversion,theemittingfrequenciesarein
the C or K band range. The low emitting frequencies are far below the
internationallyapprovedlimitvalues.Whenusedcorrectly,thereisno
danger to health.

4
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
1.5 CE conformity
ThedevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByaxingtheCEmarking,weconrmsuccessfultestingofthe
product.
YoucanndtheCECerticateofConformityinthedownloadsection
of our homepage.
Electromagnetic compatibility
Instrumentsinfour-wireorEx-d-iaversionaredesignedforuseinan
industrialenvironment.Nevertheless,electromagneticinterference
from electrical conductors and radiated emissions must be taken into
account,asisusualwithclassAinstrumentsaccordingtoEN61326-
1.Iftheinstrumentisusedinadierentenvironment,theelectromag-
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
acceptedasthestandardineldinstrumentation.
ThedevicefulllstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for malfunction information from measuring
transducers
• 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.
1.7 Radio license for Europe
The instrument is approved according to EN 302372-1/2 (2006-04)
for use in closed vessels.
1.8 Radio license for USA/Canada
The instrument is in conformity with part 15 of the FCC regulations.
Take note of the following two regulations:
• The instrument must not cause any interfering emissions
• Thedevicemustbeinsensitivetointerferingimmissions,including
those that may cause undesirable operating conditions
Modicationsnotexpresslyapprovedbythemanufacturerwillleadto
expiryoftheoperatinglicenceaccordingtoFCC/IC.
The instrument is in conformity with RSS-210 of the IC regulations.
Theinstrumentmayonlybeusedinclosedvesselsmadeofmetal,
concrete,orbre-reinforcedplastic.

5
1 For your safety
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
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.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"

6
2 Product description
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
2 Product description
2.1 Conguration
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
2
1
14
15
16
17
13
12
11
5
3
6
4
7
8
9
10
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 Smartphone-App
13 Symbol of the device protection class
14 ID numbers, instrument documentation
15 Reminder to observe the instrument documentation
16 NotiedauthorityforCEmarking
17 Approval directive
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,"VEGATools" and "Instrument search". Enter
the serial number.
Alternatively,youcanaccessthedataviayoursmartphone:
Type label
Serial number - Instru-
ment search

7
2 Product description
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
• Download the smartphone app "VEGATools" from the "Apple App
Store" or the "GooglePlayStore"
• ScantheDataMatrixcodeonthetypelabeloftheinstrumentor
• Enter the serial number manually in the app

8
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
3 Mounting
3.1 Mounting preparations - Parabolic antenna
The instrument is also available in versions where the antenna has
adiameterlargerthantheprocesstting(thread,ange).Withsuch
versionstheantennamustbedisconnectedfromtheprocesstting
before mounting. Proceed as follows:
1. ClampVEGAPULSSR68withtheange,e.g.inabenchvice
2. Holdtheconnectionpiece(1)withawrenchontheatsurfaces
(widthacrossats22mm)
3. Loosen counter nut (3) completely with a wrench (width across
ats36mm)inthedirectionoftheantenna
4. Loosen compression nut (2) completely with a wrench (width
acrossats41mm)inthedirectionoftheantenna
5. Removetheparabolicantenna(4)axially
6. Mountsensorangeontheadapterangeandfastenittightly
7. Check if the O-ring seal is present on the connection piece and
make sure it is not damaged.
Note:
A damaged O-ring seal must be replaced: FKM (SHS FPM 70C3
GLT),FFKM(Kalrez6375)
8. Remount the parabolic antenna (4)
9. Fastencompressionnut(2)withawrench(widthacrossats41),
torquemax.50Nm
10. Fastencounternut(3)withawrench(widthacrossats36),
torquemax.40Nm
Note:
Ontheversionwithrinsingairconnection,makesurethattheholes
intheantennaandintheprocessttingcoincide.Thisensuresasuf-
cientairow(theairisledthroughtheholestothefeedsystem.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 Locknut
4 Parabolic antenna

9
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
3.2 Mounting preparations - Horn antenna
The instrument is also available in versions with an antenna whose
diameterislargerthantheprocesstting(thread,ange).Insuch
casestheantennamustbedisconnectedfromtheprocesstting
before mounting. Proceed as follows:
1. Loosenthehexagonsocketscrews(3)ontheantennasocket
withanAllenwrench(size3)
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
againstfallingo
4. Retightentheantennawithhexagonscrewstotheantenna
socket;torquemax.2.5Nm(1.8lbfft)
Note:
Theradarsensorwithrinsingairconnectionorantennaextension
is provided with a notch on the antenna socket. This notch must be
alignedwiththemarkingontheprocesstting(themarkingspecies
the position of the polarisation of the radar signal).
3
4
1
2
Fig. 3: Dismounting of the horn antenna
1 Marking for the polarisation
2 Marking at the antenna socket
3 Hexagon screws on the antenna socket
4 Antenna
3.3 Mounting instructions
1. Distancefromthevesselwall>200mm,theantennashould
protrude > 10 mm into the vessel
Mounting

10
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
ca. 10 mm
200 mm
(7.87
")
Fig. 4: 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".

11
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
4 Connecting to power supply and bus
system
4.1 Connection
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.Todothis,lifttheterminalblockwithasmallscrewdriver
andpullitout.Whenreinsertingtheterminalblock,youshouldhearit
snap in.
Proceed as follows:
1. Unscrew the housing cover
2. Loosen compression nuts of the cable glands
3. Removeapprox.10cm(4in)ofthecablemantle(signaloutput),
stripapprox.1cm(0.4in)insulationfromtheendsoftheindi-
vidual wires
4. Insert the cable into the sensor through the cable entry
Fig. 5: Connection steps 5 and 6
5. Insert the wire ends into the terminals according to the wiring plan
Information:
Solidcoresaswellasexiblecoreswithwireendsleevesareinsert-
eddirectlyintotheterminalopenings.Incaseofexiblecoreswithout
endsleeves,presstheterminalfromabovewithasmallscrewdriver,
theterminalopeningisthenfree.Whenthescrewdriverisreleased,
the terminal closes again.
Connection technology
Connection procedure

12
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
6. Check the hold of the wires in the terminals by lightly pulling on
them
7. Connectthescreentotheinternalgroundterminal,connectthe
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-
ingtothewiringplan,inadditionconnectthegroundconductorto
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 cover back on
Theelectricalconnectionisnished.
Information:
The terminal blocks are pluggable and can be removed from the
housinginsert.Todothis,lifttheterminalblockwithasmallscrewdriv-
erandpullitout.Wheninsertingtheterminalblockagain,youshould
hear it snap in.
4.2 Wiring plan
2
1
Fig. 6: 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.7:Electronicscompartment,doublechamberhousing
1 Internal connection to the connection compartment
2 For display and adjustment module or interface adapter
Overview
Electronics compartment

13
4 Connecting to power supply and bus system
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
Information:
Theconnectionofanexternaldisplayandadjustmentunitisnotpos-
sible with this double chamber housing.
+
+
power supply
MODBUS
D0
D1
IS GND
USB
1
2
4 3
1345
2off on
( )
(
)
(-)
(-)
Fig.8:Terminalcompartment
1 USB interface
2 Slideswitchforintegratedterminationresistor(120Ω)
3 Voltage supply
4 Modbus signal
Terminal Function Polarity
1 Voltage supply +
2 Voltage supply -
3 Modbus-Signal D0 +
4 Modbus-Signal D1 -
5 Function ground with installa-
tion according to CSA
Terminal compartment

14
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
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
andremovedagainatanytime.Youcanchooseanyoneoffourdier-
ent positions - each displaced by 90°. It is not necessary to interrupt
the power supply.
Proceed as follows:
1. Unscrew the housing cover
2. Place the display and adjustment module in the requested posi-
tion onto the electronics and turn to the right until it snaps in
3. Screw housing cover with inspection window tightly back on
Removal is carried out in reverse order.
Thedisplayandadjustmentmoduleispoweredbythesensor,anad-
ditional connection is not necessary.
Fig. 9: Installing the display and adjustment module in the electronics compart-
ment of the single chamber housing

15
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
1 2
Fig. 10: Insertion of the display and adjustment module into the double chamber
housing
1 In the electronics compartment
2 Intheconnectioncompartment(withEx-d-iaversionnotpossible)
Note:
Ifyouintendtoretrottheinstrumentwithadisplayandadjustment
moduleforcontinuousmeasuredvalueindication,ahighercoverwith
an inspection glass is required.
5.2 Parameter adjustment
1. Go via the display and adjustment module to the menu "Setup".
2. Select in the menu item "Medium" the medium of your applica-
tion,forexample"Powder/Dust".
3. Select in the menu item "Application"thevessel,theapplication
andthevesselform,forexample,silo.
4. Carry out the adjustment in the menu items "Min. adjustment" and
"Max. adjustment".
Set parameters

16
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
The radar sensor as a distance measuring instrument measures the
distance from the sensor to the product surface. For indication of the
reallevel,anallocationofthemeasureddistancetothepercentage
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
Forthisadjustment,thedistanceisenteredformin.andmax.level.
Ifthesevaluesarenotknown,anadjustmentwithdistances,for
example,of10%and90%isalsopossible.Startingpointforthese
distancespecicationsisalwaysthesealsurfaceofthethreador
ange.
With the function "Echocurvememory" the echo curve can be saved
at the time of setup. This is generally recommended; for using the As-
setManagementfunctionsitisabsolutelynecessary.Ifpossible,the
curve should be saved with a low level in the vessel.
WiththeadjustmentsoftwarePACTwareandthePC,thehighresolu-
tionechocurvecanbedisplayedandusedtorecognizesignal
changesovertheoperatingtime.Inaddition,theechocurveofthe
setup can be also displayed in the echo curve window and compared
with the actual echo curve.
Parameterization example
Diagnostics - Echo curve
memory

17
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
Thefollowingcircumstancescauseinterferingreectionsandcan
inuencethemeasurement:
• High sockets
• Vessel installations such as struts
• Agitators
• Buildup or welded joints on vessel walls
Note:
Afalsesignalsuppressiondetects,marksandsavesthesefalsesig-
nals so that they are no longer taken into account for level measure-
ment.
This should be done with the low level so that all potential interfering
reectionscanbedetected.
Proceed as follows:
1. Select the menu item "Additional settins" with [->]andconrm
with [OK]. With [->] you have to select the menu item "False
signal suppression"andconrmwith[OK].
2. Conrmagainwith[OK].
3. Conrmagainwith[OK].
4. Conrmagainwith[OK] and enter the actual distance from the
sensor to the product surface.
5. All interfering signals in this section are detected by the sensor
andstoredafterconrmingwith[OK].
Note:
Checkthedistancetotheproductsurface,becauseifanincorrect
(toolarge)valueisentered,theexistinglevelwillbesavedasafalse
echo.Thellinglevelwouldthennolongerbedetectableinthisarea.
Ifafalsesignalsuppressionhasalreadybeencreatedinthesensor,
the following menu window appears when selecting "False signal
suppression":
Additional adjustments -
False signal suppression

18
5 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
The menu item "Delete" is used to completely delete an already cre-
ated false signal suppression. This is useful if the saved false signal
suppression no longer matches the metrological conditions in the
vessel.
The menu item "Extend"isusedtoextendanalreadycreatedfalse
signal suppression. This is useful if a false signal suppression was
carried out with a too high level and not all false signals could be de-
tected. When selecting "Extend",thedistancetotheproductsurface
of the created false signal suppression is displayed. This value can
nowbechangedandthefalsesignalsuppressioncanbeextendedto
this range.

19
6 Supplement
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
6 Supplement
6.1 Technical data
Electromechanical data - version IP 66/IP 67
Options of the cable entry
ƲCable gland M20x1.5(cable:ø5…9mm)
ƲCable entry ½ NPT
ƲBlind plug M20x1.5;½NPT
ƲClosing cap M20x1.5;½NPT
Plug options
ƲSupply and signal circuit (only with low
voltage)
M12x1plug
ƲIndication circuit M12x1plug
Wire cross-section (spring-loaded terminals)
Ʋ Massivewire,cord 0.2…2.5mm²(AWG24…14)
ƲStranded wire with end sleeve 0.2…1.5mm²(AWG24…16)
Voltage supply
Operating voltage 8…30VDC
Power consumption < 500 mW
Interpolation protection Integrated

Printing date:
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
47164-EN-140129
All statements concerning scope of delivery, application, practical use and operat-
ing conditions of the sensors and processing systems correspond to the information
available at the time of printing.
Subject to change without prior notice
© VEGA Grieshaber KG, Schiltach/Germany 2014
Phone [phone]
Fax [phone]
E-mail: [email protected]
www.vega.com