Vega VEGASON 62 User manual

Operating Instructions
Ultrasonic sensor for continuous level
measurement
VEGASON 62
4 … 20 mA/HART - four-wire
Document ID: 28779

2
Contents
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
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 FulllmentofNAMURrecommendations ......................................................................... 6
2.8 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage..................................................................................... 8
3.4 Accessories and replacement parts ................................................................................. 9
4 Mounting
4.1 General instructions ....................................................................................................... 11
4.2 Mountinginstructions ..................................................................................................... 12
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 20
5.2 Connection procedure.................................................................................................... 21
5.3 Wiring plan, double chamber housing ............................................................................ 22
5.4 Switch-on phase............................................................................................................. 24
6 Set up with the display and adjustment module PLICSCOM
6.1 Insert display and adjustment module............................................................................ 25
6.2 Adjustment system......................................................................................................... 26
6.3 Setup steps .................................................................................................................... 27
6.4 Menuschematic............................................................................................................. 38
6.9 Saving the parameter adjustment data........................................................................... 40
7 Set up with PACTware and other adjustment programs
7.1 Connect the PC via VEGACONNECT ............................................................................ 41
7.2 Parameter adjustment with PACTware............................................................................ 42
7.3 ParameteradjustmentwithAMS™andPDM................................................................. 43
7.4 Saving the parameter adjustment data........................................................................... 44
8 Maintenanceandfaultrectication
8.1 Maintenance .................................................................................................................. 45
8.2 Rectify faults................................................................................................................... 45
8.3 Exchanging the electronics module................................................................................ 46
8.4 Software update ............................................................................................................. 46
8.5 How to proceed if a repair is necessary.......................................................................... 47
9 Dismount
9.1 Dismounting steps.......................................................................................................... 48

3
Contents
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
9.2 Disposal ......................................................................................................................... 48
10 Supplement
10.1 Technical data ................................................................................................................ 49
10.2 Dimensions .................................................................................................................... 52
Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions manual.
Editing status: 2015-05-21

4
1 About this document
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
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-
tionsformaintenanceandfaultrectication.Pleasereadthisinforma-
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
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
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
VEGASON 62 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.
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.
2.3 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.
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
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.

6
2 For your safety
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 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.
Electromagnetic compatibility
The instruments 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 a
class A instrument according to EN 61326-1. If the instrument is used
inadierentenvironment,itselectromagneticcompatibilitywithother
devices must be ensured by suitable measures.
2.7 Fulllmentof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
For further information see www.namur.de.
2.8 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"

7
3 Product description
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Ultrasonicsensor
• Documentation
– Quick setup guide VEGASON 62
– Instructions for optional instrument features
– Ex-specic"Safety instructions" (with Ex versions)
– ifnecessary,furthercerticates
• DVD "Software", included therein
– PACTware/DTMCollection
– Driver software
Information:
In this operating instructions manual, the optional instrument features
are described.The respective scope of delivery results from the order
specication.
The VEGASON 62 consists of the components:
• Processttingwithtransducer
• Housing with electronics
• Housing cover, optionally available with display and adjustment
modulePLICSCOM
Thecomponentsareavailableindierentversions.
1
2
3
Fig. 1: VEGASON 62 with Alu double chamber housing
1 Housing cover with integrated PLICSCOM (optional)
2 Housing with electronics, optionally available with plug connector
3 Processttingwithtransducer
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
Scope of delivery
Constituent parts
Type label

8
3 Product description
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
• Instrument type
• Article and serial number device
• Article numbers, documentation
• Technical data: For example approvals, process temperature,
processtting/material,signaloutput,powersupply,protection
• SILidentication(withSILratingexworks)
With the serial number, you can access the delivery data of the instru-
ment via www.vega.com, "VEGA Tools" and "serial number search".
Youcanndtheserialnumberontheinsideoftheinstrumentaswell
as on the type label on the outside.
This operating instructions manual applies to the following instrument
versions:
• Hardware version < 2.0.0
• Softwareversion≤3.8
3.2 Principle of operation
VEGASON 62 is an ultrasonic sensor for continuous level measure-
ment. It is suitable for liquids and solids in virtually all industries,
particularly in the water and waste water industry.
The transducer of the ultrasonic sensor transmits short ultrasonic
pulsestothemeasuredproduct.Thesepulsesarereectedby
product surface and received back by the transducer as echoes.
The running time of the ultrasonic pulses from emission to reception
is proportional to the distance and hence the level. The determined
level is converted into an appropriate output signal and outputted as
measured value.
Four-wire electronics with separate power supply.
Thesupplyvoltagerangecandierdependingontheinstrument
version.
Thedataforpowersupplyarespeciedinchapter"Technical data".
Measuredvaluetransmissioniscarriedoutviathe4…20mA/HART
output separate from power supply.
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.Theexactvoltagespecicationsarestatedinchapter"Technical
data".
3.3 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.
Scope of this operating
instructions manual
Application area
Functional principle
Voltage supply
Packaging

9
3 Product description
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
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.
Uptothetimeofinstallation,thepackagesmustbeleftclosedand
stored according to the orientation and storage markings on the
outside.
Unlessotherwiseindicated,thepackagesmustbestoredonlyunder
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
• Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
3.4 Accessories and replacement parts
ThedisplayandadjustmentmodulePLICSCOMisusedformeasured
value indication, adjustment and diagnosis. It can be inserted into the
sensor and removed at any time.
Youcanndfurtherinformationintheoperatinginstructions"Display
and adjustment module PLICSCOM" (Document-ID 27835).
The interface adapter VEGACONNECT enables the connection of
communication-capableinstrumentstotheUSBinterfaceofaPC.For
parameter adjustment of these instruments, an adjustment software
suchasPACTwarewithVEGA-DTMisrequired.
Youcanndfurtherinformationintheoperatinginstructions"Interface
adapter VEGACONNECT" (Document-ID 32628).
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
For sensors with double chamber housing the interface adapter
"DISADAPT" is also required for VEGADIS 81.
Youcanndfurtherinformationintheoperatinginstructions"VE-
GADIS 81" (Document-ID 43814).
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.
Youcanndfurtherinformationintheoperatinginstructions"VE-
GADIS 82" (Document-ID 45300).
Transport
Transport inspection
Storage
Storage and transport
temperature
PLICSCOM
VEGACONNECT
VEGADIS 81
VEGADIS 82

10
3 Product description
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
Youwillndadditionalinformationinthesupplementaryinstructions
manual "Protective cover" (Document-ID 34296).
Flangesareavailableindierentversionsaccordingtothefollowing
standards: DIN 2501, EN 1092-1, ANSI B 16.5, JIS B 2210-1984,
GOST 12821-80.
Youcanndadditionalinformationinthesupplementaryinstructions
manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID
31088).
Electronics module "VEGASON series 60" is a replacement part for
ultrasonicsensorsofVEGASONseries60.Adierentversionisavail-
able for each type of signal output.
Youcanndfurtherinformationintheoperatinginstructions"Elec-
tronics module VEGASON series 60" (Document-ID 30206).
Protective cap
Flanges
Electronics module

11
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
4 Mounting
4.1 General instructions
Makesurethatallpartsoftheinstrumentcomingindirectcontact
with the process, especially the sensor element, process seal and
processtting,aresuitablefortheexistingprocessconditions,such
as process pressure, process temperature as well as the chemical
properties of the medium.
Youcanndthespecicationsinchapter"Technical data" and on the
nameplate.
Select an installation position you can easily reach for mounting and
connectingaswellaslaterretrottingofadisplayandadjustment
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
dierentpositions(eachdisplacedby90°).
Usetherecommendedcables(seechapter"Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cableentry.Rainandcondensationwatercanthusdraino.Thisap-
plies mainly to outdoor mounting as well as installation in areas where
high humidity is expected (e.g. through cleaning processes) or on
cooled or heated vessels.
Fig. 2: Measures against moisture ingress
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
protective 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.
The reference plane for the measuring range is the lower edge of the
transducer.
Makesurethataminimumdistancefromthereferenceplane-the
so-calleddeadzone,inwhichmeasurementisnotpossible-is
Suitability for the process
conditions
Installation position
Moisture
Cableentries-NPT
thread
Referenceplanefor
measuring range

12
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
maintained.Theexactvalueofthedeadzoneisstatedinchapter
"Technical data".
1
2
Fig. 3: Minimum distance to the max. level
1 Dead zone
2 Reference plane
Information:
If the medium reaches the transducer, buildup can form on it and
cause faulty measurements later on.
1 32
100%
0%
Fig. 4: Measuring range (operating range) and max. measuring distance
1 full
2 empty (max. measuring distance)
3 Measuring range
GaugepressureinthevesseldoesnotinuenceVEGASON62.Low
pressure or vacuum does, however, damp the ultrasonic pulses. This
inuencesthemeasuringresult,particularlyifthelevelisverylow.
Withpressuresunder-0.2bar(-20kPa)youshoulduseadierent
measuring principle, e.g. radar or guided microwave.
4.2 Mounting instructions
Screw VEGASON 62 into the mounting socket with an appropriate
spannerappliedtothehexagonoftheprocesstting.Max.torquesee
chapter "Technical data".
Pressure/Vacuum
Screwing in

13
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
When mounting the sensor, keep a distance of at least 200 mm
(7.874 in) to the vessel wall. If the sensor is installed in the center of
dished or round vessel tops, multiple echoes can arise.These can,
however, be suppressed by an appropriate adjustment (see chapter
"Setup").
1
2
> 200 mm
Fig. 5: Mounting on round vessel tops
1 Reference plane
2 Vessel center or symmetry axis
If this distance cannot be maintained, a false signal storage should
be carried out during setup. This applies particularly if buildup on the
vessel wall is expected. In such cases, we recommend repeating the
false signal storage at a later date with existing buildup.
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.
Installation position

14
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
Fig. 6: Vessel with conical bottom
Socket pieces should be dimensioned so that the lower end of the
transducer protrudes at least 10 mm (0.394 in) out of the socket.
ca. 10 mm
Fig. 7: Recommended socket mounting
Ifthereectivepropertiesofthemediumaregood,youcanmount
VEGASON 62 on sockets which are higher than the length of the
transducer.Youwillndrecommendedvaluesforsocketheightsinthe
following illustration. The socket end should be smooth and burr-free,
if possible also rounded. Carry out a false echo storage.
Socket

15
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
d
d
h
100 mm/4"
150 mm/6"
200 mm/8"
300 mm/12"
400 mm/16"
500 mm/20"
h
Fig. 8: Deviating socket dimensions
In liquids, direct the sensor as perpendicular as possible to the prod-
uct surface to achieve optimum measurement results.
Fig. 9: Alignment in liquids
To reduce the min. distance to the medium, you can also mount VE-
GASON62withabeamdeector.Bydoingthis,itispossibletollthe
vessel nearly to maximum. Such an arrangement is suitable primarily
foropenvesselssuchase.g.overowbasins.
~200
~400x400
45°
Fig.10:Beamdeector
The ultrasonic sensor should be installed at a location where no
installations cross the ultrasonic beam.
Vessel installations such as for example, ladders, limit switches, heat-
ing spirals, struts etc. can cause false echoes that interfere with the
usefulecho.Makesurewhenplanningyourmeasuringsitethatthe
ultrasonic signals have a "clear view" to the measured product.
In case of existing vessel installations, a false echo storage should be
carried out during setup.
Sensor orientation
Vessel installations

16
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small,inclinedsheetmetalorplasticbaesabovetheinstallations
scatter the ultrasonic signals and avoid direct false echoes.
α
α
α
α
α
α
Fig.11:Coverat,large-areaproleswithdeectors
If there are agitators in the vessel, a false signal storage should be
carried out with the agitators in motion.This ensures that the interfer-
ingreectionsfromtheagitatorsaresavedwiththebladesindierent
positions.
Fig. 12: Agitators
Donotmounttheinstrumentsinorabovethellingstream.Makesure
thatyoudetecttheproductsurface,nottheinowingproduct.
Agitators
Inowingmedium

17
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
Fig.13:Inowingliquid
Throughtheactionoflling,stirringandotherprocessesinthevessel,
dense foams which considerably damp the emitted signals may form
on the product surface.
If foams are causing measurement errors, the sensor should be used
in a standpipe or, alternatively, the more suitable guided radar sen-
sors (TDR) should be used.
Guidedwaveradarisunaectedbyfoamgenerationandisparticu-
larly suitable for such applications.
If there are strong air currents in the vessel, e.g. due to strong winds
in outdoor installations or air turbulence, e.g. by cyclone extraction
youshouldmountVEGASON62inastandpipeoruseadierent
measuring principle, e.g. radar or guided radar (TDR).
Byusingastandpipe(surgeorbypasstube),theinuenceofvessel
installations, foam generation and turbulence is excluded.
Standpipes must extend all the way down to the requested min. level,
as measurement is only possible within the tube.
Foam
Air turbulences
Standpipe measurement

18
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
max.
min.
1
Fig. 14: Standpipe in the tank
1 Vent hole: ø 5 … 10 mm (0.197 … 0.394 in)
VEGASON 62 can be used from tube diameters of 50 mm (1.969 in).
Avoid large gaps and thick welding joints when connecting the tubes.
Generally carry out a false echo storage.
Measurementinastandpipeisnotrecommendedforextremely
adhesive products.
Theshortexamplesgiveyouintroductoryinformationontheow
measurement.Detailedplanninginformationisavailablefromume
manufacturers and in special literature.
3 ... 4 hmax
≥ 50 mm
90°
23
1
hmaxdmin
≥ 2 mm x hmax
90°
42 3
Fig.15:Flowmeasurementwithrectangularume:dmin. = min. distance of the
sensor (see chapter "Technical data"); hmax.=max.llingoftherectangular
ume
1 Overoworice(sideview)
2 Headwater
3 Tail water
4 Overfallorice(viewfrombottomwater)
In general, the following points must be observed:
• Install the sensor on the headwater side
Flow measurement with
rectangularume

19
4Mounting
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
• Installationinthecentreoftheumeandverticaltotheliquid
surface
• Distancetotheoverfallorice
• Distanceoforiceopeningaboveground
• Min.distanceoftheoriceopeningtobottomwater
• Min.distanceofthesensortomax.storagelevel
2
3 ... 4 x hmax
90°
hmax
d
B
1
Fig.16:FlowmeasurementwithKhafagi-Venturiume:d=Min.distancetosen-
sor; hmax.=max.llingoftheume;B=tightestconstrictionintheume
1 Position sensor
2 Venturiume
In general, the following points must be observed:
• Installation of the sensor at the inlet side
• Installationinthecentreoftheumeandverticaltotheliquid
surface
• DistancetotheVenturiume
• Min.distanceofthesensortomax.storagelevel
Flow measurement with
KhafagiVenturiume

20
5 Connecting to power supply
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-150603
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.
Supply voltage and current output are carried on separate two-wire
connection cables if reliable separation is required. The supply volt-
agerangecandierdependingontheinstrumentversion.
Thedataforpowersupplyarespeciedinchapter"Technical data".
The standard version can be operated with an earth-connected cur-
rentoutput,theExdversionmustbeoperatedwithaoatingoutput.
This instrument is designed in protection class I.To maintain this
protection class, it is absolutely necessary that the ground conductor
be connected to the internal ground terminal.Take note of the general
installation regulations.
Always connect the instrument to vessel ground (potential equalisa-
tion) or in case of plastic vessels to the next ground potential. For
this purpose there is a ground terminal on the side of the instrument
housing.
For power supply, an approved installation cable with PE conductor is
required.
The 4 … 20 mA current output is connected with standard two-wire
cable without screen. If electromagnetic interference is expected
which is above the test values of EN 61326 for industrial areas,
screened cable should be used.
Usecablewithroundcrosssectionforinstrumentswithhousingand
cablegland.Toensurethesealeectofthecablegland(IPprotection
rating),ndoutwhichcableouterdiameterthecableglandissuitable
for.
Useacableglandttingthecablediameter.
If screened cable is required, we recommend connecting the cable
screen on both ends to ground potential. In the sensor, the screen
must be connected directly to the internal ground terminal.The
ground terminal on the outside of the housing must be connected to
the ground potential (low impedance).
In Ex systems, the grounding is carried out according to the installa-
tion regulations.
With the Exd version, the minus side of the signal output is galvani-
cally connected to ground via protective diodes.When connecting the
instrumenttoagroundedPLC,equalisingcurrentscanowincase
Safety instructions
Voltage supply
Connection cable
Cable screening and
grounding