Vega VEGASON 62 User manual
Operating Instructions
Ultrasonic sensor for continuous level
measurement
VEGASON 62
Two-wire 4 … 20 mA/HART
Document ID: 28776
2
Contents
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
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 EU conformity................................................................................................................... 5
2.6 FulllmentofNAMURrecommendations ......................................................................... 6
2.7 Installation and operation in the USA and Canada ........................................................... 6
2.8 Environmental instructions ............................................................................................... 6
3 Product description................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage..................................................................................... 8
3.4 Accessories and replacement parts ................................................................................. 9
4 Mounting................................................................................................................................. 11
4.1 General instructions ....................................................................................................... 11
4.2 Mountinginstructions ..................................................................................................... 13
5 Connecting to power supply................................................................................................. 20
5.1 Preparing the connection ............................................................................................... 20
5.2 Connection procedure.................................................................................................... 21
5.3 Wiring plan, single chamber housing.............................................................................. 22
5.4 Wiring plan, double chamber housing ............................................................................ 23
5.5 Wiring plan - version IP66/IP68 (1 bar)........................................................................... 25
5.6 Switch-on phase............................................................................................................. 25
6 Set up with the display and adjustment module PLICSCOM ............................................ 26
6.1 Insert display and adjustment module............................................................................ 26
6.2 Adjustment system......................................................................................................... 27
6.3 Setup steps .................................................................................................................... 28
6.4 Menuschematic............................................................................................................. 40
6.5 Saving the parameterisation data................................................................................... 41
7 Set up with PACTware and other adjustment programs .................................................... 42
7.1 Connect the PC via VEGACONNECT ............................................................................ 42
7.2 Parameter adjustment with PACTware............................................................................ 43
7.3 ParameteradjustmentwithAMS™andPDM................................................................. 44
7.4 Saving the parameterisation data................................................................................... 45
8 Maintenanceandfaultrectication...................................................................................... 46
8.1 Maintenance .................................................................................................................. 46
8.2 Rectify faults................................................................................................................... 46
8.3 Exchanging the electronics module................................................................................ 47
8.4 Software update ............................................................................................................. 48
8.5 How to proceed if a repair is necessary.......................................................................... 48
3
Contents
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
9 Dismount................................................................................................................................. 49
9.1 Dismounting steps.......................................................................................................... 49
9.2 Disposal ......................................................................................................................... 49
10 Supplement ............................................................................................................................ 50
10.1 Technical data ................................................................................................................ 50
10.2 Dimensions .................................................................................................................... 55
10.3 Industrial property rights................................................................................................. 57
10.4 Trademark ...................................................................................................................... 57
Safety instructions for Ex areas:
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2022-03-07
4
1 About this document
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information 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 personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Disposal
This symbol indicates special instructions for disposal.
5
2 For your safety
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.
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.
Youcannddetailedinformationabouttheareaofapplicationin
chapter " Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 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
technicallyawlessandreliablecondition.Theoperatorisresponsi-
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-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
The EU conformity declaration can be found on our homepage.
6
2 For your safety
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
2.6 FulllmentofNAMURrecommendations
NAMURistheautomationtechnologyuserassociationintheprocess
industryinGermany.ThepublishedNAMURrecommendationsare
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21: 2012 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for fault information from measuring transduc-
ers
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
For further information see www.namur.de.
2.7 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
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.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfullthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter " Packaging, transport and storage"
• Chapter " Disposal"
7
3 Product description
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Ultrasonic sensor
• Documentation
– Quick setup guide VEGASON 62
– Instructions for optional instrument features
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
Information:
Optional instrument features are also described in this operating
instructions manual.The respective scope of delivery results from the
orderspecication.
The VEGASON 62 consists of the components:
• Processttingwithtransducer
• Housing with electronics, optionally available with plug connector
• Housing cover, optionally available with display and adjustment
modulePLICSCOM
Thecomponentsareavailableindierentversions.
1
2
3
Fig. 1: VEGASON 62, threaded version with plastic housing
1 Housing cover with integrated PLICSCOM (optional)
2 Housing with electronics
3 Processttingwithtransducer
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
• Instrument type
• Article and serial number device
• Article numbers, documentation
Scope of delivery
Constituent parts
Type label
8
3 Product description
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
• Technical data: For example approvals, process temperature,
processtting/material,signaloutput,voltagesupply,protection
• SILidentication(withSILratingexworks)
With the serial number, you can access the delivery data of the instru-
ment via " www.vega.com", " Search".Youcanndtheserialnumber
on the inside of the instrument as well as on the type label on the
outside.
This instruction manual applies to the following instrument versions:
• Hardware version from 2.0.0
• Software version from 3.90
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
pulsestothemeasuredproduct.Thesepulsesarereectedby
medium 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.
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".
Theoptionalheatingrequiresitsownvoltagesupply.Youcannd
further details in the supplementary instructions manual " Heating for
display and adjustment module".
This function is generally not available for approved instruments.
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 instruction
Application area
Functional principle
Voltage supply
Packaging
9
3 Product description
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
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 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.4 Accessories and replacement parts
The display and adjustment module is used for measured value indi-
cation, adjustment and diagnosis.
The integrated Bluetooth module (optional) enables wireless adjust-
ment via standard adjustment devices.
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC.
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
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.
ThePLICSMOBILET81isanexternalGSM/GPRS/UMTSradiounit
for transmission of measured values and for remote parameter adjust-
ment of HART sensors.
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
Transport
Transport inspection
Storage
Storage and transport
temperature
Lifting and carrying
PLICSCOM
VEGACONNECT
VEGADIS 81
VEGADIS 82
PLICSMOBILE T81
Protective cover
10
3 Product description
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
Screwedangesareavailableindierentversionsaccordingtothe
followingstandards:DIN2501,EN1092-1,BS10,ASMEB16.5,
JIS B 2210-1984, GOST 12821-80.
Flanges
11
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
4 Mounting
4.1 General instructions
Note:
For safety reasons, the instrument must only be operated within the
permissibleprocessconditions.Youcannddetailedinformationon
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
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1. It can be used
indoors as well as outdoors.
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°).
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
cablegland.Rainandcondensationwatercanthusdraino.This
applies 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.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Process conditions
Suitability for the ambient
conditions
Installation position
Moisture
12
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
Fig. 2: Measures against moisture ingress
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.
NPT thread
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.
The reference plane for the measuring range is the lower edge of the
transducer.
Makesurethatablockingdistancebelowthereferenceplaneismain-
tained in which a measurement is not possible.The exact value of the
blocking distance is stated in chapter " Technical data".
1
2
Fig. 3: Blocking distance to the max. level
1 blocking distance
2 Reference plane
Information:
If the medium reaches the transducer, buildup can form on it and
cause faulty measurements later on.
Cable entries - NPT
thread
Cable glands
Referenceplanefor
measuring range
13
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
1 32
100%
0%
Fig. 4: Measuring range (operating range) and max. measuring distance
1 full
2 empty (max. measuring distance)
3 Measuring range
GaugepressureinthevesseldoesnotinuenceVEGASON62.Low
pressure or vacuum does, however, damp the ultrasonic pulses.This
inuencesthemeasuringresult,particularlyifthelevelisverylow.
Withpressuresunder-0.2bar(-20kPa)youshoulduseadierent
measuring principle, e.g. radar or guided radar (TDR).
4.2 Mounting instructions
Screw VEGASON 62 into the mounting socket with an appropriate
spannerappliedtothehexagonoftheprocesstting.Max.torquesee
chapter " Technical data".
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").
Pressure/Vacuum
Screwing in
Installation position
14
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
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 suppression
should be carried out during setup. This applies particularly if buildup
on the vessel wall is expected. In such cases, we recommend repeat-
ing the false signal suppression at a later date with existing buildup.
In vessels with conical bottom it can be advantageous to mount the
sensor in the centre of the vessel, as measurement is then possible
down to the bottom.
Fig. 6: Vessel with conical bottom
Socket pieces should be dimensioned so that the lower end of the
transducerprotrudesatleast10mm(0.394in)outofthenozzle.
Nozzle
15
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
ca. 10 mm
Fig. 7: Recommended socket mounting
Ifthereectivepropertiesofthemediumaregood,youcanmount
VEGASON 62 on sockets which are higher than the length of the
transducer.Youwillndrecommendedvaluesforsocketheightsinthe
following illustration.The socket end should be smooth and burr-free,
if possible also rounded. Carry out a false signal suppression.
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 me-
dium surface to achieve optimum measurement results.
Fig. 9: Alignment in liquids
To reduce the blocking distance to the medium, you can also mount
VEGASON62withabeamdeector.Bydoingthis,itispossibleto
llthevesselnearlytomaximum.Suchanarrangementissuitable
primarilyforopenvesselssuchase.g.overowbasins.
Sensor orientation
16
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
~200
~400x400
45°
Fig.10:Beamdeector
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
usefulecho.Makesurewhenplanningyourmeasuringsitethatthe
ultrasonic signals have a "clear view" to the measured product.
In case of existing vessel installations, a false signal suppression
should be carried out during setup.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small,inclinedsheetmetalorplasticbaesabovetheinstallations
scatter the ultrasonic signals and avoid direct false echoes.
α
α
α
α
α
α
Fig.11:Coverat,large-areaproleswithdeectors
If there are agitators in the vessel, a false signal suppression should
be carried out with the agitators in motion. This ensures that the
interferingreectionsfromtheagitatorsaresavedwiththebladesin
dierentpositions.
Vessel installations
Agitators
17
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
Fig. 12: Agitators
Donotmounttheinstrumentsinorabovethellingstream.Makesure
thatyoudetectthemediumsurface,nottheinowingproduct.
Fig.13:Inowingliquid
Throughtheactionoflling,stirringandotherprocessesinthevessel,
dense foams which considerably damp the emitted signals may form
on the medium 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.
Guidedwaveradarisunaectedbyfoamgenerationandisparticu-
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
youshouldmountVEGASON62inastandpipeoruseadierent
measuring principle, e.g. radar or guided radar (TDR).
Inowingmedium
Foam
Air turbulences
18
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
Byusingastandpipe(surgeorbypasstube),theinuenceofvessel
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.
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 signal suppression.
Measurementinastandpipeisnotrecommendedforextremely
adhesive products.
Theshortexamplesgiveyouintroductoryinformationonow
measurement.Detailedplanninginformationisavailablefromume
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 overfall: dmin. = blocking distance of
the sensor (see chapter " Technical data"); hmax.=max.llingoftherectangular
spillway
1 Overfallorice(sideview)
2 Upstream water
3 Tailwater
4 Overfallorice(viewfromtailwater)
Standpipe measurement
Flow measurement with
rectangular overfall
19
4Mounting
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
In general, the following points must be observed:
• Install the sensor on the headwater side
• Installationinthecentreoftheumeandverticaltotheliquid
surface
• Distancetotheoverfallorice
• Distanceoforiceopeningaboveground
• Min.distanceoftheoriceopeningtotailwater
• Distance of the sensor to the max. height of damming by taking
the blocking distance into account
2
3 ... 4 x hmax
90°
hmax
d
B
1
Fig.16:FlowmeasurementwithKhafagi-Venturiume:d=Blockingdistanceto
sensor; hmax.=max.llingoftheume;B=tightestconstrictionintheume
1 Position sensor
2 Venturiume
In general, the following points must be observed:
• Installation of the sensor at the inlet side
• Installationinthecentreoftheumeandverticaltotheliquid
surface
• DistancetotheVenturiume
• Distance of the sensor to the max. height of damming by taking
the blocking distance into account
Flow measurement with
KhafagiVenturiume
20
5 Connecting to power supply
VEGASON 62 • Two-wire 4 … 20 mA/HART
28776-EN-220310
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,
qualiedpersonnelauthorisedbytheplantoperator.
• 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. with a sensor current of 20.5 mA or 22 mA in case of fault
signal)
• Inuenceofadditionalinstrumentsinthecircuit(seeloadvaluesin
chapter " Technical data")
The instrument is connected with standard two-wire cable without
shielding. If electromagnetic interference is expected which is above
the test values of EN 61326-1 for industrial areas, shielded cable
should be used.
Makesurethatthecableusedhastherequiredtemperatureresist-
anceandresafetyformax.occurringambienttemperature
Use cable with round cross section for instruments with housing and
cablegland.Toensurethesealeectofthecablegland(IPprotection
rating),ndoutwhichcableouterdiameterthecableglandissuitable
for.
Useacableglandttingthecablediameter.
We generally recommend the use of shielded cable for HART
multidrop mode.
On the instrument with cable entry ½ NPT and plastic housing there is
a metallic ½" threaded insert moulded into the plastic housing.
Caution:
No grease should be used when screwing the NPT cable gland or
steel tube into the threaded insert. Standard grease can contain
additives that corrode the connection between threaded insert and
housing.Thiswouldinuencethestabilityoftheconnectionandthe
tightness of the housing.
Safety instructions
Voltage supply
Connection cable
Cable gland ½ NPT
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7
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