Vega VEGACAL 66 User manual
Operating Instructions
Capacitive cable electrode for
continuous level measurement
VEGACAL 66
4 … 20 mA/HART - two-wire
Document ID: 30036
2
Contents
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
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 FulllmentofNAMURrecommendations ......................................................................... 6
2.8 Safety instructions for Ex areas ........................................................................................ 6
2.9 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Operation ......................................................................................................................... 9
3.4 Packaging, transport and storage................................................................................... 10
3.5 Accessories and replacement parts ............................................................................... 10
4 Mounting
4.1 General instructions ....................................................................................................... 12
4.2 Mountinginstructions ..................................................................................................... 14
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 16
5.2 Connection procedure.................................................................................................... 17
5.3 Wiring plan, single chamber housing.............................................................................. 18
5.4 Wiring plan, double chamber housing ............................................................................ 20
5.5 Wiring plan, double chamber housing Ex d .................................................................... 22
5.6 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 24
6 Set up with the display and adjustment module PLICSCOM
6.1 Short description ............................................................................................................ 25
6.2 Insert display and adjustment module............................................................................ 25
6.3 Adjustment system......................................................................................................... 26
6.4 Setup steps .................................................................................................................... 27
6.5 Menuschematic............................................................................................................. 37
6.10 Saving the parameter adjustment data........................................................................... 38
7 Set up with PACTware and other adjustment programs
7.1 Connect the PC.............................................................................................................. 39
7.2 Parameter adjustment with PACTware............................................................................ 40
7.3 ParameteradjustmentwithAMS™andPDM................................................................. 41
7.4 Saving the parameter adjustment data........................................................................... 42
8 Maintenanceandfaultrectication
8.1 Maintenance .................................................................................................................. 43
8.2 Rectify faults................................................................................................................... 43
3
Contents
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
8.3 Exchanging the electronics module................................................................................ 45
8.4 How to proceed if a repair is necessary.......................................................................... 46
9 Dismount
9.1 Dismounting steps.......................................................................................................... 47
9.2 Disposal ......................................................................................................................... 47
10 Supplement
10.1 Technical data ................................................................................................................ 48
10.2 Dimensions .................................................................................................................... 53
10.3 Industrial property rights................................................................................................. 57
10.4 Trademark ...................................................................................................................... 57
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
withthedelivery.Youcanndthemlistedinchapter"Product descrip-
tion".
Instructions manuals for accessories and replacement parts
Tip:
ToensurereliablesetupandoperationofyourVEGACAL66,weoer
accessories and replacement parts. The corresponding documenta-
tions are:
• 27720 - VEGADIS 61
• 30531 - Electronics module VEGACAL series 60
• 34296 - Protective cover
• 31088-FlangesaccordingtoDIN-EN-ASME-JIS
Editing status: 2016-02-19
4
1 About this document
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
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-
tionsformaintenanceandfaultrectication.Pleasereadthisinforma-
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
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
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
VEGACAL 66 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.
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-
traryconversionsormodicationsareexplicitlyforbidden.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specichazards,e.g.vesseloverllordamagetosystem
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
technicallyawlessandreliablecondition.Theoperatorisresponsible
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-
traryconversionsormodicationsareexplicitlyforbidden.
The safety approval markings and safety tips on the device must also
be observed.
6
2 For your safety
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 CE conformity
ThedevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByaxingtheCEmarking,weconrmsuccessfultestingofthe
product.
YoucanndtheCECerticateofConformityinthedownloadsection
of our homepage.
2.7 FulllmentofNAMURrecommendations
NAMURistheautomationtechnologyuserassociationintheprocess
industryinGermany.ThepublishedNAMURrecommendationsare
acceptedasthestandardineldinstrumentation.
ThedevicefulllstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for malfunction information from measuring
transducers
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
For further information see www.namur.de.
2.8 Safety instructions for Ex areas
PleasenotetheEx-specicsafetyinformationforinstallationandop-
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.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfulllthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter"Packaging, transport and storage"
• Chapter"Disposal"
7
3 Product description
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Level sensor VEGACAL 66
• Documentation
– This operating instructions manual
– SafetyManual"Functional safety (SIL)"(optional)
– Supplementaryinstructionsmanual"Heating for display and
adjustment module"(optional)
– Supplementaryinstructionsmanual"Plug connector for con-
tinuously measuring sensors"(optional)
– Ex-specic"Safety instructions"(withExversions)
– Ifnecessary,furthercerticates
The VEGACAL 66 consists of the components:
• Processttingwithprobe
• Housing with electronics
• Housing cover, optionally available with display and adjustment
module
1
2
3
Fig. 1: VEGACAL 66 - cable version with plastic housing
1 Housing cover with integrated display and adjustment module (optional)
2 Housing with electronics
3 Processtting
Scope of delivery
Constituent parts
8
3 Product description
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
2
1
11
13
12
14
15
10
9
3
6
4
5
7
8
Fig. 2: Layout of the type label (example)
1 Instrument type
2 Product code
3 Approvals
4 Process and ambient temperature, process pressure
5 Power supply and signal output, electronics
6 Protection rating
7 Probe length
8 Order number
9 Serial number of the instrument
10 Material, wetted parts
11 Symbol of the device protection class
12 Reminder to observe the instrument documentation
13 ID numbers, instrument documentation
14 NotiedauthorityforCEmarking
15 Approval directives
With the serial number, you can access the delivery data of the instru-
ment via www.vega.com,"VEGA Tools"and"serial number search".
Youcanndtheserialnumberontheinsideoftheinstrumentaswell
as on the type label on the outside.
3.2 Principle of operation
VEGACAL 66 is a level sensor for use in non-abrasive liquids and bulk
solids.
The cable probe is fully insulated and the proven mechanical con-
structionoershighfunctionalsafety.
Probe, measured product and vessel wall form an electrical capacitor.
Thecapacitanceisinuencedbythreemainfactors.
Type label
Area of application
Functional principle
9
3 Product description
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
1
2
3
Fig. 3: Functional principle - Plate capacitor
1 Distance between the electrode surfaces
2 Size of the electrode surfaces
3 Type of dielectric between the electrodes
The probe and the vessel wall are the capacitor plates. The measured
product and the insulation are the dielectric. Due to the higher dielec-
tric constant of the insulation and the conductive product compared to
air, the capacitance increases as the probe is gradually covered.
The capacitance as well as the resistance change are converted by
the electronics module into a level-proportional signal.
4 … 20 mA/HART two-wire electronics for voltage supply and meas-
ured value transmission on the same cable.
Thesupplyvoltagerangecandierdependingontheinstrument
version.
Thedataforpowersupplyarespeciedinchapter"Technical data".
The backlight of the display and adjustment module is powered by
the sensor. The prerequisite for this is a supply voltage at a certain
level.Theexactvoltagespecicationsarestatedinchapter"Technical
data".
Theoptionalheatingrequiresitsownoperatingvoltage.Youcannd
detailsinthesupplementaryinstructionsmanual"Heating for display
and adjustment module".
This function is generally not available for approved instruments.
3.3 Operation
The instrument can be adjusted with the following adjustment media:
• With the display and adjustment module
• withthesuitableVEGADTMinconjunctionwithanadjustment
softwareaccordingtotheFDT/DTMstandard,e.g.PACTwareand
PC
• Withmanufacturer-specicadjustmentprogramsAMS™orPDM
• With a HART handheld
Voltage supply
10
3 Product description
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
3.4 Packaging, transport and storage
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 cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via 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.
Uptothetimeofinstallation,thepackagesmustbeleftclosedand
stored according to the orientation and storage markings on the
outside.
Unlessotherwiseindicated,thepackagesmustbestoredonlyunder
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
• Storageandtransporttemperatureseechapter"Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
3.5 Accessories and replacement parts
ThedisplayandadjustmentmodulePLICSCOMisusedformeasured
value indication, adjustment and diagnosis. It can be inserted into the
sensor and removed at any time.
Youcanndfurtherinformationintheoperatinginstructions"Display
and adjustment module PLICSCOM"(Document-ID27835).
The interface adapter VEGACONNECT enables the connection of
communication-capableinstrumentstotheUSBinterfaceofaPC.For
parameter adjustment of these instruments, the adjustment software
PACTwarewithVEGA-DTMisrequired.
Youcanndfurtherinformationintheoperatinginstructions"Interface
adapter VEGACONNECT"(Document-ID32628).
VEGADIS 82 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
PLICSCOM
VEGACONNECT
VEGADIS 82
11
3 Product description
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Youcanndfurtherinformationintheoperatinginstructions"VE-
GADIS 82"(Document-ID45300).
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
Youwillndadditionalinformationinthesupplementaryinstructions
manual"Protective cover"(Document-ID34296).
Screwedangesareavailableindierentversionsaccordingtothe
followingstandards:DIN2501,EN1092-1,BS10,ASMEB16.5,
JISB2210-1984,GOST12821-80.
Youcanndadditionalinformationinthesupplementaryinstructions
manual"Flanges according to DIN-EN-ASME-JIS".
Protective cap
Flanges
12
4Mounting
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
4 Mounting
4.1 General instructions
Makesurethatallpartsoftheinstrumentcomingindirectcontact
with the process, especially the sensor element, process seal and
processtting,aresuitablefortheexistingprocessconditions,such
as process pressure, process temperature as well as the chemical
properties of the medium.
Youcanndthespecicationsinchapter"Technical data"andonthe
nameplate.
Select an installation position you can easily reach for mounting and
connectingaswellaslaterretrottingofadisplayandadjustment
module.The housing can be rotated by 330° without the use of any
tools.You can also install the display and adjustment module in four
dierentpositions(eachdisplacedby90°).
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Ground the probe before welding directly on the rod or cable.
With threaded versions, the housing must not be used to screw in the
instrument. Applying tightening forces on the housing can damage its
internal parts.
Usethehexagonforscrewingin.
Usetherecommendedcables(seechapter"Connecting to power
supply")andtightenthecablegland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cableentry.Rainandcondensationwatercanthusdraino.Thisap-
plies mainly to outdoor mounting as well as installation in areas where
highhumidityisexpected(e.g.throughcleaningprocesses)oron
cooled or heated vessels.
Fig. 4: Measures against moisture ingress
Suitability for the process
conditions
Installation position
Welding work
Handling
Moisture
13
4Mounting
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Theprocessttingmustbesealedifthereisgaugeorlowpressurein
the vessel. Before use, check if the seal material is resistant against
the measured medium and the process temperature.
Themax.permissiblepressureisspeciedinchapter"Technical
data"oronthetypelabelofthesensor.
Insulatingmeasures,suchase.g.coveringthethreadwithteontape,
can interrupt the necessary electrical connection with metal vessels.
For this reason, ground the probe on the vessel or use a conductive
seal material.
Metal vessel
Makesurethatthemechanicalconnectionoftheprobetothevessel
iselectricallyconductivetoensuresucientgrounding.
Useconductiveseals,suchasthosemadeofcopperorlead,etc.
Insulatingmeasures,suchascoveringthethreadwithTeontape,
can interrupt the necessary electrical connection with metal vessels.
For this reason, ground the probe on the vessel or use a conductive
seal material.
Non-conductivevessels
In non-conductive vessels, e.g. plastic tanks, the second pole of the
capacitor must be provided separately.
If possible, the capacitive probe should be mounted vertically or par-
allel to the counter electrode. This applies particularly to applications
in non-conductive products.
In cylindrical tanks, spherical tanks or other asymmetrical tank forms,
nonlinear level values are generated due to the varying distance to
the vessel wall.
Useaconcentrictubeinnon-conductiveproductsorlinearizethe
meas. signal.
Ifcondensateformsonthevesseltop,therun-oliquidcancause
bridging and hence measurement errors.
For this reason, use a screening tube . The length of the screening
tubedependsontheamountofcondensateandthedrain-obehav-
iour of the product.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPTthread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
Pressure/Vacuum
Vessel material
Vessel forms
Condensation
Cableentries-NPT
thread
Cable glands
14
4Mounting
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
4.2 Mounting instructions
During operation, the probe must not touch any installations or the
vessel wall. The measured value can also change if the distance to
the vessel wall changes considerably. If necessary, secure the end of
theprobe(insulated).
Inthegravityweightthereisathread(M12),e.g.foraringbolt(op-
tional)-(articleno.2.27424).Thegravityweightisisolatedfromthe
measuring cable.
Makesurethattheprobecableisnotcompletelytaut.Avoidtensile
loads on the cable.
1
2
Fig. 5: Fasten the probe
1 Gravity weight
2 Lug M12 (article no. 2.27423)
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
down to the lowest point of the vessel bottom.
Caution:
It is not possible to measure on the gravity weight.The measuring
range of the probe ends at the upper edge of the gravity weight.
Iftheinstrumentismountedinthellingstream,unwantedfalse
measurement signals can be generated. For this reason, mount the
instrument at a position in the vessel where no disturbances, e.g. from
llingopenings,agitators,etc.,canoccur.
This applies particularly to instrument versions with a longer probe.
Installation position
Inowingmedium
15
4Mounting
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Fig.6:Inowingmedium
16
5 Connecting to power supply
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
• The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
• If overvoltage surges are expected, overvoltage arresters should
be installed.
Power supply and current signal are carried on the same two-wire
cable.Theoperatingvoltagecandierdependingontheinstrument
version.
Thedataforpowersupplyarespeciedinchapter"Technical data".
Provide a reliable separation between the supply circuit and the
mains circuits according to DIN EN 61140 VDE 0140-1.
Keepinmindthefollowingadditionalfactorsthatinuencetheoperat-
ing voltage:
• Lower output voltage of the power supply unit under nominal load
(e.g.withasensorcurrentof20.5mAor22mAincaseoffault)
• Inuenceofadditionalinstrumentsinthecircuit(seeloadvaluesin
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 61326-1 for industrial areas, screened cable should
be used.
Usecablewithroundcrosssectionforinstrumentswithhousingand
cablegland.Toensurethesealeectofthecablegland(IPprotection
rating),ndoutwhichcableouterdiameterthecableglandissuitable
for.
Useacableglandttingthecablediameter.
We generally recommend the use of screened cable for HART multi-
drop mode.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPTthread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Safety instructions
Voltage supply
Connection cable
Cable glands
17
5 Connecting to power supply
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
With plastic housing, the NPT cable gland or the Conduit steel tube
must be screwed without grease into the threaded insert.
If screened cable is required, we recommend connecting the cable
screen on both ends to ground potential. In the sensor, the screen
should be connected directly to the internal ground terminal.The
ground terminal on the outside of the housing must be connected to
thegroundpotential(withlowimpedance).
In Ex systems, the grounding is carried out according to the installa-
tion regulations.
InelectroplatingandCCPsystems(cathodiccorrosionprotection)it
mustbetakenintoaccountthatsignicantpotentialdierencesexist.
This can lead to unacceptably high currents in the cable screen if it is
grounded at both ends.
Information:
Themetallicpartsoftheinstrument(processtting,housing,etc.)are
conductively connected to the ground terminal.
Take note of the corresponding installation regulations for Ex applica-
tions. In particular, make sure that no potential equalisation currents
owoverthecablescreen.Incaseofgroundingonbothsidesthis
can be achieved by the use of a capacitor or a separate potential
equalisation.
5.2 Connection procedure
Proceed as follows:
1. Unscrewthehousinglid
2. If a display and adjustment module is installed, remove it by turn-
ing it to the left.
3. Loosen compression nut of the cable gland and remove blind
plug
4. Removeapprox.10cm(4in)ofthecablemantle,stripapprox.
1cm(0.4in)ofinsulationfromtheendsoftheindividualwires
5. Insert the cable into the sensor through the cable entry
6. Lifttheopeningleversoftheterminalswithascrewdriver(see
followingillustration)
7. Insert the wire ends into the open terminals according to the wir-
ing plan
Cable screening and
grounding
18
5 Connecting to power supply
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
Fig. 7: Connection steps 6 and 7
8. Press down the opening levers of the terminals, you will hear the
terminal spring closing
9. Check the hold of the wires in the terminals by lightly pulling on
them
10. Connect the screen to the internal ground terminal, connect the
external ground terminal to potential equalisation
11. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
12. Screw the housing lid back on
Theelectricalconnectionisnished.
5.3 Wiring plan, single chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-ia
version.
19
5 Connecting to power supply
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
5
5
55
1 2
4
3
Fig. 8: Material versions, single chamber housing
1 Plastic
2 Aluminium
3 Stainless steel, precision casting
4 Stainless steel, electro-polished
5 Filter element for air pressure compensation of all material versions. Blind
plug with version IP 66/IP 68, 1 bar for Aluminium and stainless steel
I²C
Display
12 5678
3
4
1
2
Fig. 9: Electronics and terminal compartment, single chamber housing
1 Plug connector for VEGACONNECT (I²C interface)
2 Spring-loaded terminals for connection of the external indication VEGADIS
61
3 Ground terminal for connection of the cable screen
4 Spring-loaded terminals for voltage supply
Housing overview
Electronics and terminal
compartment
20
5 Connecting to power supply
VEGACAL 66 • 4 … 20 mA/HART - two-wire
30036-EN-160331
I2C
Display
1
12 5678
Fig. 10: Wiring plan, single chamber housing
1 Voltage supply, signal output
5.4 Wiring plan, double chamber housing
The following illustrations apply to the non-Ex and also to the Ex-ia
version.
1 2 3
45
Fig. 11: Double chamber housing
1 Housing cover, connection compartment
2 Blind plug or plug M12 x 1 for VEGADIS 61 (optional)
3 Housing cover, electronics compartment
4 Filter element for air pressure compensation
5 Cable gland
Wiring plan
Housing overview
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4
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