Vega VEGAFLEX 82 User manual

Quick setup guide
TDR sensor for continuous level
measurement of bulk solids
VEGAFLEX 82
Modbus
Rod and cable probe
Document ID: 57769

2
Contents
VEGAFLEX 82 • Modbus
57769-EN-181030
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 Environmental instructions ............................................................................................... 4
2 Product description ................................................................................................................. 5
2.1 Conguration.................................................................................................................... 5
3 Mounting................................................................................................................................... 7
3.1 General instructions for use of the instrument .................................................................. 7
3.2 Mounting instructions ....................................................................................................... 7
4 Connecting to power supply................................................................................................. 11
4.1 Connecting..................................................................................................................... 11
4.2 Wiring plan, single chamber housing.............................................................................. 12
5 Set up with the display and adjustment module ................................................................ 14
5.1 Insert display and adjustment module............................................................................ 14
5.2 Parameter adjustment - Quick setup .............................................................................. 14
6 Supplement ............................................................................................................................ 17
6.1 Technical data ................................................................................................................ 17
Information:
This quick setup guide enables quick setup and commissioning of
your instrument.
Youcanndsupplementaryinformationinthecorresponding,more
detailed Operating Instructions Manual as well as the Safety Manual
thatcomeswithinstrumentswithSILqualication.Thesemanualsare
available in the download area of "www.vega.com".
Operating instructions VEGAFLEX 82 - Modbus - Rod and cable
probe: Document-ID 51516
Editing status of the quick setup guide: 2018-10-30

3
1 For your safety
VEGAFLEX 82 • Modbus
57769-EN-181030
1 For your safety
1.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.
During work on and with the device, the required personal protective
equipment must always be worn.
1.2 Appropriate use
VEGAFLEX 82 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 this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
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
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning read in this oper-
ating instructions manual.

4
1 For your safety
VEGAFLEX 82 • Modbus
57769-EN-181030
1.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
YoucanndtheEUconformitydeclarationonourwebsiteunder
www.vega.com/downloads.
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lstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• 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 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental pro-
tection.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfullthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"

5
2 Product description
VEGAFLEX 82 • Modbus
57769-EN-181030
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
12
13
14
15
11
10
5
3
6
4
7
8
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 Probe length (measurement reliability optional)
7 Process and ambient temperature, process pressure
8 Material wetted parts
9 Order number
10 Serial number of the instrument
11 Symbol of the device protection class
12 ID numbers, instrument documentation
13 Reminder to observe the instrument documentation
14 NotiedauthorityforCEmarking
15 Approval directives
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", "Instrument search (serial number)". Enter
the serial number.
Alternatively, you can access the data via your smartphone:
• Download the VEGA Tools app from the "Apple App Store" or the
"Google Play Store"
Type label
Serial number - Instru-
ment search

6
2 Product description
VEGAFLEX 82 • Modbus
57769-EN-181030
• ScantheDataMatrixcodeonthetypelabeloftheinstrumentor
• Enter the serial number manually in the app

7
3 Mounting
VEGAFLEX 82 • Modbus
57769-EN-181030
3 Mounting
3.1 General instructions for use of the instrument
Protect your instrument against moisture ingress through the following
measures:
• Use a suitable connection cable (see chapter "Connectingto
power supply")
• Tighten the cable gland or plug connector
• Whenmountinghorizontally,turnthehousingsothatthecable
gland or plug connector point downward
• Lead the connection cable downward in front of the cable entry or
plug connector.
This applies mainly to outdoor installations, in areas where high
humidityisexpected(e.g.throughcleaningprocesses)andoncooled
or heated vessels.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Makesurethatthedegreeofcontaminationspeciedinchapter
"Technical data"meetstheexistingambientconditions.
3.2 Mounting instructions
Mount VEGAFLEX 82 in such a way that the distance to vessel instal-
lations or to the vessel wall is at least 300 mm (12 in). In non-metallic
vessels, the distance to the vessel wall should be at least 500 mm
(19.7 in).
During operation, the probe must not touch any installations or the
vessel wall. If necessary, fasten the probe end.
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
nearly down to the lowest point of the bottom. Keep in mind that
measurement all the way down to the tip of the probe may not be pos-
sible.Theexactvalueofthemin.distance(lowerdeadband)isstated
in chapter "Technical data" of the operating instructions.
Fig. 2: Vessel with conical bottom
Plastic vessel/Glass vessel
The guided microwave principle requires a metallic surface on the
processtting.Therefore,inplasticvessels,etc.,useaninstru-
Protection against mois-
ture
Installation position
Type of vessel

8
3 Mounting
VEGAFLEX 82 • Modbus
57769-EN-181030
mentversionwithange(fromDN50)orplaceametalsheet
(ø>200mm/8in)beneaththeprocessttingwhenscrewingitin.
Makesurethattheplatehasdirectcontactwiththeprocesstting.
When using the probes without metal vessel wall, e.g. in plastic
vessels,themeasuredvaluecanbeinuencedbystrongelectromag-
neticelds(emittedinterferenceaccordingtoEN61326:classA).
Useaprobeincoaxversionforapplicationsinliquids.
1 2
Fig. 3: Mounting in non-metallic vessel
1 Flange
2 Metal sheet
Concrete vessel
When mounting in thick concrete ceilings, VEGAFLEX 82 should be
mountedfrontushtotheloweredge.Inconcretesilos,thedistance
to the wall should be at least 500 mm (20 in).

9
3 Mounting
VEGAFLEX 82 • Modbus
57769-EN-181030
ø >160mm
(ø >6.3")
Fig. 4: Mounting in concrete silo
Ifpossible,avoidsockets.Mountthesensorushwiththevesseltop.
If this is not possible, use short sockets with small diameter.
Higher sockets or sockets with a bigger diameter can generally be
used.They can, however, increase the upper blocking distance (dead
band). Check if this is relevant for your measurement.
In such cases, always carry out a false signal suppression after
mounting.Youcanndfurtherinformationunder"Setup procedure".
h
d
dh
DN25...DN150
>DN150... DN200 ≤ 150mm(5.91")
≤100mm (3.94")
Fig. 5: Mounting socket
Whenweldingthesocket,makesurethatthesocketisushwiththe
vessel top.
Mounting socket

10
3 Mounting
VEGAFLEX 82 • Modbus
57769-EN-181030
1 2
Fig.6:Socketmustbeinstalledush
1 Unfavourable mounting
2 Socketush-optimummounting

11
4 Connecting to power supply
VEGAFLEX 82 • Modbus
57769-EN-181030
4 Connecting to power supply
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.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 lid
2. If a display and adjustment module is installed, remove it by turn-
ing it slightly to the left
3. Loosen compression nut of the cable gland and remove blind
plug
4. 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
5. Insert the cable into the sensor through the cable entry
Fig.7:Connectionsteps5and6-Singlechamberhousing
6. 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.
Youcanndfurtherinformationonthemax.wirecross-sectionunder
"Technicaldata-Electromechanicaldata".
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connect the screen to the internal ground terminal, connect the
externalgroundterminaltopotentialequalisation
Connection technology
Connection procedure

12
4 Connecting to power supply
VEGAFLEX 82 • Modbus
57769-EN-181030
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Reinsert the display and adjustment module, if one was installed
11. Screw the housing lid back on
Theelectricalconnectionisnished.
4.2 Wiring plan, single chamber housing
Thefollowingillustrationappliestothenon-Ex,Ex-iaandEx-d-ia
version.
Information:
With Modbus systems, several sensors can be connected in parallel.
With this so called "Daisy-Chain" the cables for the signal and voltage
supply are looped from sensor to sensor.
The last sensor in this "chain" must be provided with a bus termina-
tion. For this purpose there is a connectable terminating resistor on
the electronics module. Make sure that the slid switch (5) with all sen-
sorsofthechainissetto"o".Withthelastsensoryouhavetosetthe
slide switch (5) to position "on".
Pleasealsotakenoteoftheinformationintheannex"Basics Mod-
bus".
2
1 4
5
3
567834
1 2 = Power supply
3 4 = Modbus Data
5 6 = Power supply
7 8 = Modbus Data
IN
OUT
Status
o on
addr.
OUTIN
2
1
11
8
7
10
9
6
Fig.8:Electronicscompartment-ConnectionDaisy-Chain
1 Voltage supply
2 Signal input
3 Power supply (to further Modbus sensors)
4 Signal output (to further Modbus sensors)
5 Ground terminal in the housing
6 Terminal block - Output (OUT)
7 Terminal block - Input (IN)
8 Rotary switch for address setting
9 Contactsforthedisplayandadjustmentmoduleortheinterfaceadapter
10 Signal lamp - Status
11 Connectablebusresistor
Wiring plan - Daisy-
Chain

13
4 Connecting to power supply
VEGAFLEX 82 • Modbus
57769-EN-181030
While connecting the sensor to a stub, the arrangement of the resistor
isundened.
Thus the connection via stub is generally possible, however not
recommended.
2
1
3
567834
1 2 = Power supply
3 4 = Modbus Data
5 6 = Power supply
7 8 = Modbus Data
IN
OUT
Status
o on
addr.
OUTIN
2
1
Fig.9:Electronicscompartment-Connectionwithstub
1 Voltage supply
2 Signal output
3 Ground terminal in the housing
Wiring plan - Stub

14
5 Set up with the display and adjustment module
VEGAFLEX 82 • Modbus
57769-EN-181030
5 Set up 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 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.
The display and adjustment module is powered by the sensor, an ad-
ditional connection is not necessary.
Fig.10:Installingthedisplayandadjustmentmoduleintheelectronicscompart-
ment of the single chamber housing
Note:
Ifyouintendtoretrottheinstrumentwithadisplayandadjustment
module for continuous measured value indication, a higher lid with an
inspection glass is required.
5.2 Parameter adjustment - Quick setup
To quickly and easily adapt the sensor to the application, select
the menu item "Quick setup" in the start graphic on the display and
adjustment module.
Youcannd"Extendedadjustment" in the detailed operating
instructions.
Quick setup

15
5 Set up with the display and adjustment module
VEGAFLEX 82 • Modbus
57769-EN-181030
Instrument address
An address must be assigned to each Modbus instrument. Each
address may only be assigned once in the Modbus or Levelmaster
network.Thesensorisonlyrecognizedbythecontrolsystemifthe
address is set correctly.
• Permitted address range - Modbus 0 … 247
• Permitted address range - Levelmaster 0 … 31
In delivery status, Modbus address 246 and Levelmaster address
31 are set by default. Hence the software addressing is possible by
default.
The address setting is carried out either via:
• The address selection switch in the electronics compartment of
the instrument (hardware addressing)
• The display and adjustment module (software addressing)
• PACTware/DTM (software addressing)
Hardware addressing
HardwareaddressingiseectiveifaModbusaddressof0…245is
set with the address selection switches on the electronics module of
VEGAFLEX82.Insuchcase,softwareaddressinghasnoeect-only
the set hardware address applies (Levelmaster addresses: 0 … 30).
Software addressing
Softwareaddressingisonlyeectiveifaddressaddress246orhigher
is set on the instrument with the address selection switches (Level-
master address: 31).
Measurement loop name
Inthenextmenuitemyoucanassignasuitablemeasurementloop
name.Youcanenteranamewithmax.19characters.
Application
In this menu item, you can select the application.You can choose
between level measurement and interface measurement.You can
also choose between measurement in a vessel or in a bypass or
standpipe.
Medium - dielectric constant
Inthismenuitem,youcandenethetypeofmedium(product).
Max. adjustment
Inthismenuitem,youcanenterthemax.adjustmentforthelevel.
General information
Level measurement

16
5 Set up with the display and adjustment module
VEGAFLEX 82 • Modbus
57769-EN-181030
Enter the appropriate distance value in m (corresponding to the
percentage value) for the full vessel.The distance refers to the sensor
referenceplane(sealsurfaceoftheprocesstting).Keepinmindthat
themax.levelmustliebelowthedeadband.
Min. adjustment
In this menu item, you can enter the min. adjustment for the level.
Enter the suitable distance value in m for the empty vessel (e.g.
distancefromtheangetotheprobeend)correspondingtotheper-
centage value. The distance refers tot he sensor reference plane (seal
surfaceoftheprocesstting).
Linearisation
A linearisation is necessary for all vessels in which the vessel volume
doesnotincreaselinearlywiththelevel-e.g.ahorizontalcylindri-
cal or spherical tank, when the indication or output of the volume is
required. Corresponding linearisation curves are preprogrammed
for these vessels.They represent the correlation between the level
percentage and vessel volume.
Thelinearizationappliesforthemeasuredvalueindicationandthe
current output. By activating the suitable curve, the percentage vessel
volume is displayed correctly.
Linearisation

17
6 Supplement
VEGAFLEX 82 • Modbus
57769-EN-181030
6 Supplement
6.1 Technical data
Note for approved instruments
The technical data in the respective safety instructions are valid for approved instruments (e.g. with
Exapproval).Thesedatacandierfromthedatalistedherein-forexampleregardingtheprocess
conditions or the voltage supply.
Electromechanical data - version IP 66/IP 67
Cable gland M20x1.5or½NPT
Wire cross-section (spring-loaded terminals)
ƲMassive wire, stranded wire 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
Reverse voltage protection Integrated

18
Notes
VEGAFLEX 82 • Modbus
57769-EN-181030

19
Notes
VEGAFLEX 82 • Modbus
57769-EN-181030

Printing date:
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
57769-EN-181030
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 2018
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