Vega VEGADIF 85 User manual

Quick setup guide
Di󰀨erential pressure transmitter with
metallic measuring cell
VEGADIF 85
4 … 20 mA
Document ID: 53572

2
Contents
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
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................................................................................................................... 3
1.6 NAMUR recommendations .............................................................................................. 4
1.7 Environmental instructions ............................................................................................... 4
2 Product description ................................................................................................................. 5
2.1 Conguration.................................................................................................................... 5
3 Mounting................................................................................................................................... 6
3.1 General instructions for use of the instrument .................................................................. 6
4 Connecting to power supply................................................................................................... 8
4.1 Connecting....................................................................................................................... 8
4.2 Single chamber housing................................................................................................... 9
5 Set up with smartphone/tablet, PC/notebook via Bluetooth ............................................. 10
5.1 Preparations................................................................................................................... 10
5.2 Connecting..................................................................................................................... 11
5.3 Sensor parameter adjustment........................................................................................ 11
6 Supplement ............................................................................................................................ 13
6.1 Technical data ................................................................................................................ 13
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 on our homepage.
Operating instructions VEGADIF 85 - 4 … 20 mA: Document-ID
53566
Editing status of the quick setup guide: 2020-09-22

3
1 For your safety
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
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
VEGADIF85isaninstrumentformeasurementofow,level,dieren-
tialpressure,densityandinterface.
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.
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.
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.

4
1 For your safety
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
The EU conformity declaration can be found on our homepage.
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 43 – Signal level for fault information from measuring transduc-
ers
• 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
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
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
7
5
6
3
4
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Field for approvals
4 Technical data
5 Serial number of the instrument
6 Data matrix code for VEGA Tools app
7 Reminder to observe the instrument documentation
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
Move to " www.vega.com"andenterinthesearcheldtheserial
number of your instrument.
Alternatively,youcanaccessthedataviayoursmartphone:
• Download the VEGA Tools app from the " Apple App Store" or the
" Google Play Store"
• ScantheDataMatrixcodeonthetypelabeloftheinstrumentor
• Enter the serial number manually in the app
Type label
Serial number - Instru-
ment search

6
3 Mounting
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
3 Mounting
3.1 General instructions for use of the instrument
Note:
Forsafetyreasons,theinstrumentmustonlybeoperatedwithinthe
permissibleprocessconditions.Youcannddetailedinformationon
the process conditions in chapter " Technical data" of the operating
instructions or on the type label.
Hencemakesurebeforemountingthatallpartsoftheinstrumentex-
posedtotheprocessaresuitablefortheexistingprocessconditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
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
• 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.
Note:
Make sure that during installation or maintenance no moisture or dirt
can get inside the instrument.
Tomaintainthehousingprotection,makesurethatthehousinglidis
closedduringoperationandlocked,ifnecessary.
Theventilationfortheelectronicshousingisrealisedviaalterele-
ment in the vicinity of the cable glands.
Process conditions
Protection against mois-
ture
Ventilation

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3 Mounting
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
1 2 3
6
6
6 6
6
5
4
Fig. 2: Position of the lter element - non-Ex, Ex-ia and Ex-d-ia version
1 Plastic, stainless steel single chamber (precision casting)
2 Aluminium - single chamber
3 Stainless steel single chamber (electropolished)
4 Plastic double chamber
5 Aluminium, stainless steel double chamber housing (precision casting)
6 Filter element
Information:
Makesurethatthelterelementisalwaysfreeofbuildupduringop-
eration. A high-pressure cleaner may not be used for cleaning.

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4 Connecting to power supply
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
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. 3: 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.
Connection technology
Connection procedure

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4 Connecting to power supply
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connecttheshieldingtotheinternalgroundterminal,connectthe
externalgroundterminaltopotentialequalisation
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 Single chamber housing
Thefollowingillustrationappliestothenon-Ex,Ex-iaandEx-dver-
sion.
12
+
( ) (-)
4...20mA
2
3
1
Fig. 4: Electronics and connection compartment - single chamber housing
1 Voltage supply, signal output
2 For display and adjustment module or interface adapter
3 Ground terminal for connection of the cable screening
Electronics and connec-
tion compartment

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5Setupwithsmartphone/tablet,PC/notebookviaBluetooth
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
5 Set up with smartphone/tablet, PC/
notebook via Bluetooth
5.1 Preparations
Make sure that the Bluetooth function of the display and adjustment
moduleisactivated.Forthis,theswitchonthebottomsidemustbe
set to " On".
1
On
O
Fig. 5: Activate Bluetooth
1 Switch
On = Bluetooth active
O = Bluetooth not active
The security concept of Bluetooth operation absolutely requires that
the default setting of the sensor PIN be changed.This prevents unau-
thorizedaccesstothesensor.
The default setting of the sensor PIN is " 0000". First of all you have
tochangethesensorPINintheadjustmentmenuofthesensor,e.g.
to " 1111":
1. Gotosetupviatheextendedoperation
2. Lock operation by changing sensor PIN
3. Enable operation again by entering the sensor PIN once more
Activate Bluetooth
Change sensor PIN

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5Setupwithsmartphone/tablet,PC/notebookviaBluetooth
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
AfterenteringthechangedsensorPINonceagain,sensoropera-
tionisenabledagain.Foraccess(authentication)withBluetooth,the
changedPINisstilleective.
Information:
Bluetooth communication functions only if the actual sensor PIN dif-
fers from the default setting " 0000".
5.2 Connecting
Smartphone/Tablet
Start the adjustment app and select the function "Setup". The smart-
phone/tabletsearchesautomaticallyforBluetooth-capableinstru-
ments in the area.
PC/Notebook
Start PACTware and the VEGA project assistant. Select the device
search via Bluetooth and start the search function.The device auto-
matically searches for Bluetooth-capable devices in the vicinity.
The message " Instrument search running" is displayed. All devices
found are listed in the operating window. The search is automatically
continued continuously.
Select in the device list the requested device.The message " Con-
necting" is displayed.
Fortherstconnection,theoperatingdeviceandthesensormust
authenticateeachother.Aftersuccessfulauthentication,thenextcon-
nection functions without authentication.
Forauthentication,enterinthenextmenuwindowthe4-digitsensor
PIN.
5.3 Sensor parameter adjustment
Thesensorparameterizationiscarriedoutviatheadjustmentappon
thesmartphone/tabletortheDTMonthePC/notebook.
Preparations
Connecting
Authenticate

12
5Setupwithsmartphone/tablet,PC/notebookviaBluetooth
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
Fig. 6: Example of an app view - Setup sensor adjustment
App view

13
6 Supplement
VEGADIF 85 • 4 … 20 mA
53572-EN-200924
6 Supplement
6.1 Technical data
Output variable
Output signal 4 … 20 mA - passive
Connection technology Two-wire
Range of the output signal 3.8 … 20.5 mA (default setting)
Signal resolution 0.3 µA
Faultsignal,currentoutput(adjustable) ≤3.6mA,≥21mA,lastmeasuredvalue
Max.outputcurrent 21.5 mA
Load See load resistance under Power supply
Damping(63%oftheinputvariable),
adjustable
0 … 999 s
Electromechanical data - version IP66/IP67 and IP66/IP68 (0.2 bar)1)
Options of the cable entry
ƲCable entry M20x1.5;½NPT
ƲCable gland M20x1.5,½NPT(cableøseebelowtable)
ƲBlind plug M20x1.5;½NPT
ƲClosing cap ½NPT
Material cable gland/Seal insert Cable diameter
5 … 9 mm 6 … 12 mm 7 … 12 mm 10 … 14 mm
PA/NBR ● ● –●
Brass,nickel-plated/NBR ● ● – –
Stainlesssteel/NBR – – ●–
Wire cross-section (spring-loaded terminals)
Ʋ Massive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 UB11 … 35 V DC
Operating voltage UBwith lighting
switched on
16 … 35 V DC
Reverse voltage protection Integrated
Permissible residual ripple
Ʋfor UN12 V DC (11 V < UB< 14 V) ≤0.7Ve(16…400Hz)
Ʋfor UN24 V DC (18 V < UB< 35 V) ≤1.0Ve(16…400Hz)
Load resistor
ƲCalculation (UB- Umin)/0.022A
Ʋ Example-UB= 24 V DC (24V-11V)/0.022A=591Ω
1) IP66/IP68(0.2bar),onlywithabsolutepressure.

14
Notes
VEGADIF 85 • 4 … 20 mA
53572-EN-200924

15
Notes
VEGADIF 85 • 4 … 20 mA
53572-EN-200924

Printing date:
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
53572-EN-200924
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 2020
Phone [phone]
Fax [phone]
E-mail: [email protected]
www.vega.com