Download Operating Instructions VEGAPULS 68

Operating Instructions
Radar sensor for continuous level
measurement of bulk solids
VEGAPULS 68
4 … 20 mA/HART two-wire
Document ID: 36535
Contents
Contents
About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbolism 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 CE conformity................................................................................................................... 6
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Radio license for Europe .................................................................................................. 6
2.8 Radio license for USA/Canada ......................................................................................... 6
2.9 Environmental instructions ............................................................................................... 7
3
Product description
3.1 Configuration .................................................................................................................... 8
3.2 Principle of operation........................................................................................................ 9
3.3 Packaging, transport and storage ................................................................................... 10
3.4 Accessories and replacement parts ............................................................................... 10
4
Mounting
4.1 General instructions ....................................................................................................... 13
4.2 Mounting preparations - Horn antenna ........................................................................... 13
4.3 Mounting preparations - Parabolic antenna .................................................................... 14
4.4 Mounting instructions ..................................................................................................... 15
5
Connecting to power supply
5.1 Preparing the connection ............................................................................................... 28
5.2 Connecting ..................................................................................................................... 29
5.3 Wiring plan, single chamber housing.............................................................................. 30
5.4 Wiring plan, double chamber housing ............................................................................ 31
5.5 Wiring plan, double chamber housing Ex d ia ................................................................ 33
5.6 Double chamber housing with DIS-ADAPT .................................................................... 34
5.7 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 35
5.8 Switch-on phase............................................................................................................. 35
6
Set up with the display and adjustment module
6.1 Insert display and adjustment module ............................................................................ 36
6.2 Adjustment system ......................................................................................................... 37
6.3 Parameter adjustment .................................................................................................... 38
6.4 Saving the parameter adjustment data ........................................................................... 52
7
Setup with PACTware
7.1 Connect the PC .............................................................................................................. 53
7.2 Parameter adjustment .................................................................................................... 54
7.3 Saving the parameter adjustment data ........................................................................... 55
8
Set up with other systems
8.1 DD adjustment programs ............................................................................................... 56
8.2 Field Communicator 375, 475 ........................................................................................ 56
2
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
1
Contents
9
Diagnosis, asset management and service
9.1 Maintenance .................................................................................................................. 57
9.2 Measured value and event memory ............................................................................... 57
9.3 Asset Management function........................................................................................... 58
9.4 Rectify faults ................................................................................................................... 61
9.5 Exchanging the electronics module ................................................................................ 65
9.6 Software update ............................................................................................................. 65
9.7 How to proceed if a repair is needed .............................................................................. 65
10 Dismounting
10.1 Dismounting steps.......................................................................................................... 67
10.2 Disposal ......................................................................................................................... 67
36535-EN-140209
11 Supplement
11.1 Technical data ................................................................................................................ 68
11.2 Dimensions .................................................................................................................... 76
Safety instructions for Ex areas
PleasenotetheEx-specificsafetyinformationforinstallationandoperation in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
Editing status: 2014-01-28
VEGAPULS 68 • 4 … 20 mA/HART two-wire
3
1 About this document
1
About this document
1.1
Function
1.2
Target group
1.3
Symbolism used
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instructionsformaintenanceandfaultrectification.Pleasereadthisinformation before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
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.
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.
•
→
1
Ex applications
This symbol indicates special instructions for Ex applications.
List
The dot set in front indicates a list with no implied sequence.
Action
This arrow indicates a single action.
Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of batteries and accumulators.
36535-EN-140209
4
VEGAPULS 68 • 4 … 20 mA/HART two-wire
2 For your safety
2
2.1
For your safety
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
VEGAPULS 68 is a sensor for continuous level measurement.
Youcanfinddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecificationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3
Warning about incorrect use
2.4
General safety instructions
Inappropriate or incorrect use of the instrument can give rise to
application-specifichazards,e.g.vesseloverfillordamagetosystem
components through incorrect mounting or adjustment.
This is a state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technicallyflawlessandreliablecondition.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 regulations.
The safety instructions in this operating instructions manual, the national 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. Arbitraryconversionsormodificationsareexplicitlyforbidden.
36535-EN-140209
The safety approval markings and safety tips on the device must also
be observed.
Depending on the instrument version, the emitting frequencies are in
the C or K band range. The low emitting frequencies are far below the
internationally approved limit values. When used correctly, there is no
danger to health.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
5
2 For your safety
2.5
CE conformity
ThedevicefulfillsthelegalrequirementsoftheapplicableECguidelines.ByaffixingtheCEmarking,weconfirmsuccessfultestingofthe
product.
YoucanfindtheCECertificateofConformityinthedownloadsection
of our homepage.
Electromagnetic compatibility
Instruments in four-wire or Ex-d-ia version are designed for use in an
industrial environment. Nevertheless, electromagnetic interference
from electrical conductors and radiated emissions must be taken into
account, as is usual with class A instruments according to EN 613261.Iftheinstrumentisusedinadifferentenvironment,theelectromagnetic compatibility to other instruments must be ensured by suitable
measures.
2.6
NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
acceptedasthestandardinfieldinstrumentation.
ThedevicefulfillstherequirementsofthefollowingNAMURrecommendations:
•
•
•
•
NE 21 – Electromagnetic compatibility of equipment
NE 43 – Signal level for malfunction information from measuring
transducers
NE53–Compatibilityoffielddevicesanddisplay/adjustment
components
NE107–Self-monitoringanddiagnosisoffielddevices
For further information see www.namur.de.
2.7
Radio license for Europe
2.8
Radio license for USA/Canada
The instrument is approved according to EN 302372-1/2 (2006-04)
for use in closed vessels.
The instrument is in conformity with part 15 of the FCC regulations.
Take note of the following two regulations:
•
•
The instrument must not cause any interfering emissions
The device must be insensitive to interfering immissions, including
those that may cause undesirable operating conditions
Modificationsnotexpresslyapprovedbythemanufacturerwillleadto
expiry of the operating licence according to FCC/IC.
The instrument may only be used in closed vessels made of metal,
concrete,orfibre-reinforcedplastic.
6
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
The instrument is in conformity with RSS-210 of the IC regulations.
2 For your safety
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 protection.Theenvironmentmanagementsystemiscertifiedaccording
to DIN EN ISO 14001.
Pleasehelpusfulfillthisobligationbyobservingtheenvironmental
instructions in this manual:
Chapter "Packaging, transport and storage"
Chapter "Disposal"
36535-EN-140209
•
•
VEGAPULS 68 • 4 … 20 mA/HART two-wire
7
3 Product description
3
Type label
Product description
3.1 Configuration
Thetypelabelcontainsthemostimportantdataforidentificationand
use of the instrument:
1
17
16
2
3
15
4
5
6
7
8
9
13
10
11
14
12
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Approvals
4 Power supply and signal output, electronics
5 Protection rating
6 Measuring range
7 Process and ambient temperature, process pressure
8 Material, wetted parts
9 Hardware and software version
10 Order number
11 Serial number of the instrument
12 Data-Matrix-Code for Smartphone-App
13 Symbol of the device protection class
14 ID numbers, instrument documentation
15 Reminder to observe the instrument documentation
16 NotifiedauthorityforCEmarking
17 Approval directive
Serial number - Instrument search
The type label contains the serial number of the instrument. With it
youcanfindthefollowinginstrumentdataonourhomepage:
•
•
•
•
Go to www.vega.com, "VEGATools" and "Instrument search". Enter
the serial number.
Alternatively, you can access the data via your smartphone:
8
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
•
•
Product code (HTML)
Delivery date (HTML)
Order-specificinstrumentfeatures(HTML)
Operating instructions and quick setup guide at the time of shipment (PDF)
Order-specificsensordataforanelectronicsexchange(XML)
Testcertificate(PDF)-optional
3 Product description
•
•
•
Download the smartphone app "VEGATools" from the "Apple App
Store" or the "GooglePlayStore"
Scan the Data Matrix code on the type label of the instrument or
Enter the serial number manually in the app
Scope of this operating
instructions manual
This operating instructions manual applies to the following instrument
versions:
Scope of delivery
The scope of delivery encompasses:
•
•
•
•
•
Application area
Hardware version from 2.1.0
Software version from 4.5.1
Radar sensor
Documentation
– Quick setup guide VEGAPULS 68
– Testcertificatemeasuringaccuracy(optional)
– Operating instructions manual "Display and adjustment module" (optional)
– Supplementary instructions "GSM/GPRSradiomodule"
(optional)
– Supplementary instructions manual "Heating for display and
adjustment module" (optional)
– Supplementary instructions manual "Plug connector for continuously measuring sensors" (optional)
– Ex-specific"Safety instructions" (with Ex versions)
– ifnecessary,furthercertificates
DVD "Software & Documents", containing
– Operating instructions
– Safety instructions
– PACTware/DTM-Collection
– Driver software
3.2
Principle of operation
The VEGAPULS 68 is a radar sensor for continuous measurement of
bulk solids also under arduous process conditions and large measuring ranges. It the ideal solution for level measurement in high silos,
largebunkers,stonecrushersandmeltingfurnaces.Withdifferent
antenna versions and materials, this sensor is the optimum solution
for virtually all applications and processes.
The instrument is also suitable for applications in liquids.
Dependentontheapplicationrange,differentversionsareused:
36535-EN-140209
•
•
•
Small silos and vessels, measurement of virtually all bulk solids:
Horn antenna
Largesilosandvessels,measurementofbulksolidswithlowεr
value: Parabolic antenna
Liquids: Parabolic antenna
Theinstrumentcanbeusedwithproductswithanεrvalue≥1.5.The
actually achievable value depends on the measuring conditions and
the antenna system.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
9
3 Product description
Functional principle
The antenna of the radar sensor emits short radar pulses with a
durationofapprox.1ns.Thesepulsesarereflectedbytheproduct
and received by the antenna as echoes. The transit time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an appropriate output signal and outputted as measured value.
Packaging
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.
3.3
Packaging, transport and storage
The packaging of standard instruments consists of environmentfriendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport
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.
Transport inspection
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or concealed defects must be appropriately dealt with.
Storage
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:
Storage and transport
temperature
PLICSCOM
•
•
•
•
•
•
•
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 Technicaldata-Ambientconditions"
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 or the external display and adjustment unit and removed at
any time.
VEGACONNECT
10
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Youcanfindfurtherinformationintheoperatinginstructions"Display
and adjustment module PLICSCOM" (Document-ID 27835).
3 Product description
parameter adjustment of these instruments, the adjustment software
PACTware with VEGA-DTM is required.
Youcanfindfurtherinformationintheoperatinginstructions"Interface
adapterVEGACONNECT" (Document-ID 32628).
VEGADIS 81
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.
Youcanfindfurtherinformationintheoperatinginstructions"VEGADIS81" (Document-ID 43814).
DIS-ADAPT
The adapter "DIS-ADAPT" is an accessory part for sensors with
double chamber housings. It enables the connection of VEGADIS 81
to the sensor housing via an M12 x 1 plug.
Youcanfindfurtherinformationinthesupplementaryinstructions
"AdapterDISADAPT" (Document-ID 45250).
VEGADIS 62
VEGADIS 62 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
Youcanfindfurtherinformationintheoperatinginstructions"VEGADIS62" (Document-ID 36469).
PLICSMOBILE T61
The PLICSMOBILE T61 is an external GSM/GPRS radio unit for
transmission of measured values and for remote parameter adjustment of plics® sensors. The adjustment is carried out via PACTware/
DTM by using the integrated USB connection.
Youcanfindfurtherinformationinthesupplementaryinstructions
"PLICSMOBILET61" (Document-ID 37700).
PLICSMOBILE
The PLICSMOBILE is an internal GSM/GPRS radio unit for transmission of measured values and for remote parameter adjustment of
plics® sensors. The adjustment is carried out via PACTware/DTM by
using the integrated USB connection.
Youcanfindfurtherinformationinthesupplementaryinstructions
"PLICSMOBILEGSM/GPRSradiomodule" (Document-ID 36849).
Protective cap
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
Youwillfindadditionalinformationinthesupplementaryinstructions
manual "Protective cover" (Document-ID 34296).
36535-EN-140209
Flanges
Screwedflangesareavailableindifferentversionsaccordingtothe
following standards: DIN 2501, EN 1092-1, BS 10, ANSI B 16.5,
JIS B 2210-1984, GOST 12821-80.
Youcanfindadditionalinformationinthesupplementaryinstructions
manual "FlangesaccordingtoDIN-EN-ASME-JIS" (Document-ID
31088).
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11
3 Product description
Electronics module
The electronics module VEGAPULS series 60 is a replacement part
forradarsensorsofVEGAPULSseries60.Thereisadifferentversion
available for each type of signal output.
Youcanfindfurtherinformationintheoperatinginstructions"ElectronicsmoduleVEGAPULSseries60" (Document-ID 36801).
Supplementary electronics for double chamber
housing
The supplementary electronics is a replacement part for sensors with
double chamber housing and 4 … 20 mA/HART - two-wire.
Youcanfindfurtherinformationintheoperatinginstructions"Supplementaryelectronicsfor4…20mA/HART-two-wire" (Document-ID
42764).
Antenna impedance cone The antenna impedance cone is a replacement part used for optimum
transmission of microwaves and for sealing against the process.
Youfindfurtherinformationintheoperatinginstructions"Antenna
impedanceconeVEGAPULS62and68" (Document-ID 31381).
36535-EN-140209
12
VEGAPULS 68 • 4 … 20 mA/HART two-wire
4 Mounting
4
Screwing in
Mounting
4.1
General instructions
Oninstrumentswithprocessfittingthread,thehexagonmustbetightenedwithasuitablescrewdriver.Wrenchsizeseechapter"Dimensions".
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Protection against moisture
Protect your instrument against moisture penetration through the following measures:
•
•
•
•
Use the recommended cable (see chapter "Connecting to power
supply")
Tighten the cable gland
Turn the housing in such a way that the cable gland points downward
Loop the connection cable downward in front of the cable gland
This applies particularly to:
•
•
•
Outdoor mounting
Installations in areas where high humidity is expected (e.g. through
cleaning processes)
Installations on cooled or heated vessels
Suitability for the process Make sure that all parts of the instrument exposed to the process are
conditions
suitable for the existing process conditions.
These are mainly:
•
•
•
Active measuring component
Processfitting
Process seal
•
•
•
•
Process pressure
Process temperature
Chemical properties of the medium
Abrasionandmechanicalinfluences
Process conditions are particularly:
Youcanfindthespecificationsoftheprocessconditionsinchapter
"Technicaldata" as well as on the type label.
36535-EN-140209
4.2
Mounting preparations - Horn antenna
The instrument is also available in versions with an antenna whose
diameterislargerthantheprocessfitting(thread,flange).Insuch
casestheantennamustbedisconnectedfromtheprocessfitting
before mounting. Proceed as follows:
1. Loosen the hexagon socket screws (3) on the antenna socket
withanAllenwrench(size3)
2. Remove the antenna (4)
VEGAPULS 68 • 4 … 20 mA/HART two-wire
13
4 Mounting
Note:
The plastic cone may not be pulled out of the antenna socket.
3. Insert the antenna from below into the vessel socket and secure it
againstfallingoff
4. Retighten the antenna with hexagon screws to the antenna
socket; torque max. 2.5 Nm (1.8 lbf ft)
Note:
The radar sensor with rinsing air connection or antenna extension
is provided with a notch on the antenna socket. This notch must be
alignedwiththemarkingontheprocessfitting(themarkingspecifies
the position of the polarisation of the radar signal).
1
2
3
4
Fig. 2: Dismounting of the horn antenna
1
2
3
4
Marking for the polarisation
Marking at the antenna socket
Hexagon screws on the antenna socket
Antenna
4.3
Mounting preparations - Parabolic antenna
The instrument is also available in versions where the antenna has
adiameterlargerthantheprocessfitting(thread,flange).Withsuch
versionstheantennamustbedisconnectedfromtheprocessfitting
before mounting. Proceed as follows:
1. ClampVEGAPULS68withtheflange,e.g.inabenchvice
2. Holdtheconnectionpiece(1)withawrenchontheflatsurfaces
(widthacrossflats22mm)
3. Loosen counter nut (3) completely with a wrench (width across
flats36mm)inthedirectionoftheantenna
5. Remove the parabolic antenna (4) axially
6. Mountsensorflangeontheadapterflangeandfastenittightly
7. Check if the O-ring seal is present on the connection piece and
make sure it is not damaged.
14
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
4. Loosen compression nut (2) completely with a wrench (width
acrossflats41mm)inthedirectionoftheantenna
4 Mounting
Note:
A damaged O-ring seal must be replaced: FKM (SHS FPM 70C3
GLT),FFKM(Kalrez6375)
8. Remount the parabolic antenna (4)
9. Fastencompressionnut(2)withawrench(widthacrossflats41),
torque max. 50 Nm
10. Fastencounternut(3)withawrench(widthacrossflats36),
torque max. 40 Nm
Note:
On the version with rinsing air connection, make sure that the holes
intheantennaandintheprocessfittingcoincide.Thisensuresasufficientairflow(theairisledthroughtheholestothefeedsystem.A
rinsing of the whole parabolic antenna is not intended).
1
2
3
4
Fig. 3: Dismounting, parabolic antenna
1
2
3
4
Connection piece
Compression nut
Locknut
Parabolic antenna
4.4
Mounting instructions
Horn and parabolic
antenna
The illustrations with the following mounting instructions show a radar
sensor with horn antenna. The mounting instructions apply analogously also to the version with parabolic antenna.
Polarisation
The emitted radar impulses of the radar sensor are electromagnetic
waves. The polarisation is the direction of the electrical wave component.Byturningtheinstrumentintheconnectionflangeormounting
boss,thepolarisationcanbeusedtoreducetheeffectsoffalse
echoes.
36535-EN-140209
Thepositionofthepolarisationismarkedontheprocessfittingofthe
instrument.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
15
4 Mounting
1
2
Fig. 4: Position of the polarisation
1 Marking with screwed version
2 Markingwithflangeversion
Installation position
Mount the sensor at least 200 mm (7.874 in) away from the vessel
wall.
200 mm
(7.87")
Fig. 5: Mounting of the radar sensor on the vessel top
If you cannot maintain this distance, you should carry out a false
signal storage during setup. This applies particularly if buildup on the
vessel wall is expected. In such a case, it is recommended to repeat
the false signal storage at a later date with existing buildup.
Inflowingmedium
Mountingshouldnotbetooclosetotheinflowingmaterialasthe
microwave signal will be interferred. The optimum mounting position is
ontheoppositeofthefilling.Toavoidstrongpollution,thedistanceto
thefilterordustextractionmustbeasbigaspossible.
36535-EN-140209
16
VEGAPULS 68 • 4 … 20 mA/HART two-wire
4 Mounting
Fig.6:Mountingoftheradarsensorwithinflowingmedium
36535-EN-140209
Withbulksolidssiloswithlateralpneumaticfilling,mountingshould
notbeinthefillingstreamasthemicrowavesignalwillbeinterferred.
Theoptimummountingpositionisnexttothefilling.Toavoidstrong
pollution,thedistancetothefilterordustextractionmustbeasbigas
possible.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
17
4 Mounting
Fig.7:Mountingoftheradarsensorwithinflowingmedium
Socket
The socket piece should be dimensioned in such a way that the
antenna end protrudes slightly out of the socket.
36535-EN-140209
18
VEGAPULS 68 • 4 … 20 mA/HART two-wire
ca. 10 mm
4 Mounting
> 10 mm
(0.39")
Fig. 8: Recommended socket mounting with horn antenna
Fig. 9: Recommended socket mounting with parabolic antenna
When using a swivelling holder, keep in mind that the distance
between antenna and socket gets smaller as the inclination of the
sensorincreases.Additionalfalsereflectionsmaybegeneratedwhich
caninfluencethemeasuringresultatcloserange.
36535-EN-140209
Fig. 10: Distance between antenna and socket with horn antenna
VEGAPULS 68 • 4 … 20 mA/HART two-wire
19
4 Mounting
Fig. 11: Distance between antenna and socket with parabolic antenna
h max.
Ifthemediumhasgoodreflectiveproperties,VEGAPULS68with
horn antenna can also be mounted on a longer socket piece. Recommendedvaluesforsocketheightsarespecifiedinthefollowing
illustration. You must carry out a false echo storage afterwards.
d
Fig. 12: Deviating socket dimensions
Socket diameter d
Socket length h
Recommended antenna diameter
40 mm
≤100mm
40 mm
50 mm
≤150mm
48 mm
80 mm
≤250mm
75 mm
100 mm
≤500mm
95 mm
150 mm
≤800mm
95 mm
Socket diameter d
Socket length h
Recommended antenna diameter
1½"
≤3.9in
1½"
2"
≤5.9in
2"
3"
≤9.8in
3"
4"
≤19.7in
4"
6"
≤31.5in
4"
20
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Tip:
The instrument is also optionally available with an antenna extension.
The antenna length can be selected (either ex works or later) to allow
the antenna to protrude slightly out of the end of the mounting socket.
Duetotheantennaextensionhowever,disturbingreflectionsare
generated in the close-up range. This can lead to an increase in the
4 Mounting
requiredminimumdistance,especiallywithpoorlyreflectingmedia
such as plastic powder. In practice, a cleanly constructed mounting
socket, if necessary with rounded edges, introduces fewer disturbing
influencesthananantennaextension.
Orientation
To measure as much of the vessel volume as possible, the sensor
should be aligned so that the measuring beam reaches the lowest
level in the vessel. In a cylindrical silo with conical outlet mounting is
carried out on a socket. It should be positioned on one third up to the
half of the vessel radius.
r
1/3 r...1/2 r
Fig. 13: Orientation
36535-EN-140209
If mounting in the centre of the silo is not possible, the sensor can be
directed to the vessel center by using the optional swivelling holder.
The following description shows a simple way to determine the
required angle of inclination.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
21
4 Mounting
d
α
a
Fig.14:ProposalforinstallationafterorientationVEGAPULS68
The angle of inclination depends on the vessel dimensions. It can be
easily checked with a suitable level or water leve on the sensor.
Thefollowingchartspecifiesthedistance"a"betweeninstallation
position and vessel centre dependent on the measuring distance for
inclination angles of 2° … 10°.
Distance d 2°
(m)
6°
8°
10°
2
0.1
0.1
0.2
0.3
0.4
4
0.1
0.3
0.4
0.6
0.7
6
0.2
0.4
0.6
0.8
1.1
8
0.3
0.6
0.8
1.1
1.4
10
0.3
0.7
1.1
1.4
1.8
15
0.5
1.0
1.6
2.1
2.6
20
0.7
1.4
2.1
2.8
3.5
25
0.9
1.7
2.6
3.5
4.4
30
1.0
2.1
3.2
4.2
5.3
35
1.2
2.4
3.7
4.9
6.2
40
1.4
2.8
4.2
5.6
7.1
45
1.6
3.1
4.7
6.3
7.9
50
1.7
3.5
5.3
7
8.8
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
22
4°
4 Mounting
Distance d 2°
(m)
4°
6°
8°
10°
55
1.9
3.8
5.8
7.7
9.7
60
2.1
4.2
6.3
8.4
10.6
65
2.3
4.5
6.8
9.1
11.5
70
2.4
4.9
7.4
9.8
12.3
75
2.6
5.2
7.9
1.0
13
Example:
In a vessel 20 m high, the installation position of the sensor is 1.4 m
from the vessel centre.
The necessary angle of inclination of 4° can be read out from this
chart.
Proceed as follows to adjust the angle of inclination with the swivelling
holder:
1. Loosen terminal screw of the swivelling holder with a fork spanner
SW 13
2. Direct the sensor, check angle of inclination
Information:
The max. angle of inclination of the swivelling holder is approx. 15°
3. Tighten the terminal screw, torque max. 20 Nm.
Information:
The hexagon screws must not be loosened.
Vessel installations
The mounting location of the radar sensor should be a place where no
otherequipmentorfixturescrossthepathofthemicrowavesignals.
Vessel installations, such as e.g. ladders, limit switches, heating spirals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring site that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false echo storage should be
carried out during setup.
36535-EN-140209
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small,inclinedsheetmetalbafflesabovetheinstallationsscatterthe
radarsignalsandpreventdirectinterferingreflections.
Fig.15:Coversmoothprofileswithdeflectors
Agitators
If there are agitators in the vessel, a false signal suppression should
be carried out with the agitators in motion. This ensures that the
VEGAPULS 68 • 4 … 20 mA/HART two-wire
23
4 Mounting
interferingreflectionsfromtheagitatorsaresavedwiththebladesin
differentpositions.
Fig. 16: Agitators
Material heaps
Large material heaps are detected with several sensors, which can be
mounted on e.g. traverse cranes. For this type of application, it is best
to orient the sensor toward the solid surface. A mutual infuence of the
sensors is not possible.
Fig. 17: Radar sensors on traverse crane
Information:
Keep in mind that for these applications, the sensors are designed for
relatively slow level changes. When using VEGAPULS 68 on a movable bracket, the max. measuring rate must be observed (see chapter
"Technicaldata").
24
Instruments for a temperature range up to 250 °C or up to 450 °C
haveadistancepiecebetweenprocessfittingandelectronicshousing. Ths distance piece is used for thermal decoupling of the electronics against high process temperatures.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Mounting in the vessel
insulation
4 Mounting
Information:
The distance piece must only be incorporated up to max. 50 mm in
the vessel isolation. Only then, a reliable temperature decoupling is
guaranteed.
max. 50 mm
(1.97")
1
2
3
Fig. 18: Mounting the instrument on insulated vessels.
1 Electronicshousing
2 Distance piece
3 Vessel insulation
Installation in subsurface For level measurements in concrete silos, the sensors are often
enclosures
mounted in protective boxes. These boxes can be for example metallic, closed subsurface enclosures.
1
2
Fig. 19: Mounting of the instrument in an subsurface enclosure
36535-EN-140209
1
2
Subsurface enclosure
Concrete bottom
For this application, the minimal amounts of stray radiation from the
sensorcanbereflectedandstrengthenedbythewallsofthesubsurface enclosures. In the case of sensors with plastic housings, this can
lead to coupling disturbances. This can be avoided by using a sensor
with aluminium or stainless steel housing.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
25
4 Mounting
Mounting in multiple
chamber silo
Thesilowallsofmultiplechambersilosareoftenmadeofprofile
walls,suchase.g.profilesheeting,toensuretherequiredstability.If
the radar sensor is mounted very close to a heavily structured vessel
wall,considerablefalsereflectionscanbegenerated.Hencethesensor should be mounted at a large distance from the separating wall.
The optimal mounting position is on the outer wall of the silo with the
sensor directed towards the emptying aperture in the silo center.
Fig.20:MountingofVEGAPULS68inmultiplechambersilos
26
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Fig.21:OrientationofVEGAPULS68foremptyinginthesilocenter
4 Mounting
Dust layers
To avoid strong buildup and dust in the antenna system, the sensor
should not be mounted directly at the dust extraction of the vessel.
In case of extreme dust deposits in the antenna system, VEGAPULS
68 is available with a rinsing air connection. The air is distributed via
channels in the antenna system and keeps it largely free of dust.
Fig. 22: Purging air connection with horn antenna
Fig. 23: Purging air connection with parabolic antenna
36535-EN-140209
The practice has shown that a pressure of approx. 0.2 … 1 bar
providesasufficientairflow(seediagraminchapter"Technicaldata",
"Purging air connection".
VEGAPULS 68 • 4 … 20 mA/HART two-wire
27
5 Connecting to power supply
5
Safety instructions
Voltage supply
Connecting to power supply
5.1
Preparing the connection
Always keep in mind the following safety instructions:
•
•
Connect only in the complete absence of line voltage
If overvoltage surges are expected, overvoltage arresters should
be installed
Power supply and current signal are carried on the same two-wire
cable.Theoperatingvoltagecandifferdependingontheinstrument
version.
Thedataforpowersupplyarespecifiedinchapter"Technicaldata".
Provide a reliable separation between the supply circuit and the
mains circuits according to DIN EN 61140 VDE 0140-1.
Keepinmindthefollowingadditionalfactorsthatinfluencetheoperating voltage:
•
•
Connection cable
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)
Influenceofadditionalinstrumentsinthecircuit(seeloadvaluesin
chapter "Technicaldata")
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.
For instruments with housing and cable gland, use cable with round
cross-section. A cable outer diameter of 5 … 9 mm (0.2 … 0.35 in)
ensuresthesealeffectofthecablegland.Ifyouareusingcablewith
adifferentdiameter,exchangethesealoruseasuitablecablegland.
We generally recommend the use of screened cable for HART multidrop mode.
Cable gland ½ NPT
With plastic housing, the NPT cable gland or the Conduit steel tube
must be screwed without grease into the threaded insert.
Max. torque for all housings see chapter "Technicaldata".
Cable screening and
grounding
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 electroplating and CCP systems (cathodic corrosion protection) it
mustbetakenintoaccountthatsignificantpotentialdifferencesexist.
This can lead to unacceptably high shield currents if the cable shield
is grounded at both ends.
28
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
With Ex systems, the grounding is carried out according to the installation regulations.
5 Connecting to power supply
Information:
Themetallicpartsoftheinstrument(processfitting,transmitter,concentric tube, etc.) are conductively connected with the inner and outer
ground terminal on the housing. This connection exists either directly
via connecting metallic parts or, in case of instruments with external
electronics, via the screen of the special connection cable.
Youcanfindspecificationsonthepotentialconnectionsinsidethe
instrument in chapter "Technicaldata".
Connection technology
5.2
Connecting
The voltage supply and signal output are connected via the springloaded terminals in the housing.
Connection to the display and adjustment module or to the interface
adapter is carried out via contact pins in the housing.
Information:
The terminal block is pluggable and can be removed from the
electronics. To do this, lift the terminal block with a small screwdriver
and pull it out. When reinserting the terminal block, you should hear it
snap in.
Connection procedure
Proceed as follows:
1. Unscrew the housing cover
2. If a display and adjustment module is installed, remove it by turning it slightly to the left.
3. Loosen compression nut of the cable entry gland
4. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
1 cm (0.4 in) of insulation from the ends of the individual wires
36535-EN-140209
5. Insert the cable into the sensor through the cable entry
Fig. 24: Connection steps 5 and 6 - Single chamber housing
VEGAPULS 68 • 4 … 20 mA/HART two-wire
29
5 Connecting to power supply
Fig. 25: Connection steps 5 and 6 - Double chamber housing
6. Insert the wire ends into the terminals according to the wiring plan
Information:
Solidcoresaswellasflexiblecoreswithwireendsleevesareinserteddirectlyintotheterminalopenings.Incaseofflexiblecoreswithout
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free. When the screwdriver is released,
the terminal closes again.
Youcanfindfurtherinformationonthemax.wirecross-sectionunder
"Technicaldata/Electromechanicaldata"
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connect the screen to the internal ground terminal, connect the
outer ground terminal to potential equalisation
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Reinsert the display and adjustment module, if one was installed
11. Screw the housing cover back on
Theelectricalconnectionisfinished.
5.3
Wiring plan, single chamber housing
The following illustration applies to the non-Ex as well as to the Ex-ia
version.
36535-EN-140209
30
VEGAPULS 68 • 4 … 20 mA/HART two-wire
5 Connecting to power supply
Electronics and terminal
compartment
2
3
4...20mA
(+)1
2(-)
5
6
7
8
4
1
Fig.26:Electronicsandterminalcompartment,singlechamberhousing
1
2
3
4
Voltage supply, signal output
For display and adjustment module or interface adapter
For external display and adjustment unit
Groundterminalforconnectionofthecablescreen
5.4
Electronics compartment
Wiring plan, double chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-ia
version.
2
4...20mA
(+)1
2(-)
1
5
6
7 8
3
Fig.27:Electronicscompartment,doublechamberhousing
1
2
Internal connection to the connection compartment
For display and adjustment module or interface adapter
36535-EN-140209
Information:
The connection of an external display and adjustment unit is not possible with this double chamber housing.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
31
5 Connecting to power supply
Terminal compartment
2
4...20mA
(+)1
3
Display
2(-)
5
6
7
1
8
4
Fig.28:Terminalcompartment,doublechamberhousing
1
2
3
4
Connection compartment
- Radio module PLICSMOBILE
Voltage supply, signal output
For display and adjustment module or interface adapter
For external display and adjustment unit
Groundterminalforconnectionofthecablescreen
Information:
The use of an external display and adjustment unit and a display and
adjustment module in parallel in the connection compartment is not
supported.
SIM-Card
Status
Test
USB
(+)1
2(-)
1
Fig.29:ConnectioncompartmentradiomodulePLICSMOBILE
1
Voltage supply
Youcanfinddetailedinformationonconnectioninthesupplementary
instructions "PLICSMOBILEGSM/GPRSradiomodule".
36535-EN-140209
32
VEGAPULS 68 • 4 … 20 mA/HART two-wire
5 Connecting to power supply
Electronics compartment
5.5
Wiring plan, double chamber housing Ex d ia
2
4...20mA
(+)1
2(-)
5
6
1
7 8
3
Fig.30:Electronicscompartment,doublechamberhousingExdia
1
2
3
Terminal compartment
Internal connection to the connection compartment
For display and adjustment module or interface adapter
Internal connection to the plug connector for external display and adjustment unit (optional)
Note:
If an instrument with Ex-d-ia approval is used, HART multidrop operation is not possible.
4...20mA
(+)1
2
2(-)
1
Fig.31:Connectioncompartment,doublechamberhousingExdia
1 Voltage supply, signal output
2 Groundterminalforconnectionofthecablescreen
36535-EN-140209
Plug M12 x 1 for external
display and adjustment
unit
4
3
1
2
Fig.32:Topviewoftheplugconnector
1
2
3
4
Pin 1
Pin 2
Pin 3
Pin 4
VEGAPULS 68 • 4 … 20 mA/HART two-wire
33
5 Connecting to power supply
Electronics compartment
Contact pin
Colour connection cable in the sensor
Terminal, electronics
module
Pin 1
Brown
5
Pin 2
White
6
Pin 3
Blue
7
Pin 4
Black
8
5.6
Double chamber housing with DIS-ADAPT
1
2
3
Fig. 33: View to the electronics compartment
1 DIS-ADAPT
2 Internal plug connection
3 Plug connector M12 x 1
Assignment of the plug
connector
4
3
1
2
Fig.34:Topviewoftheplugconnector
1
2
3
4
Contact pin
Colour connection cable in the sensor
Terminal, electronics
module
Pin 1
Brown
5
Pin 2
White
6
Pin 3
Blue
7
Pin 4
Black
8
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
34
Pin 1
Pin 2
Pin 3
Pin 4
5 Connecting to power supply
Wire assignment, connection cable
5.7
Wiring plan - version IP 66/IP 68, 1 bar
1
2
Fig. 35: Wire assignment in permanently connected connection cable
1
2
brown (+) and blue (-) to power supply or to the processing system
Shielding
5.8
Switch-on phase
After connecting the instrument to power supply or after a voltage
recurrence, the instrument carries out a self-check for approx. 30 s:
•
•
•
•
Internal check of the electronics
Indication of the instrument type, hardware and software version,
measurement loop name on the display or PC
Indication of the status message "F 105 Determine measured
value" on the display or PC
The output signal jumps to the set fault current
36535-EN-140209
As soon as a plausible measured value is found, the corresponding
current is outputted to the signal cable. The value corresponds to the
actual level as well as the settings already carried out, e.g. factory
setting.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
35
6 Set up with the display and adjustment module
6
6.1
Set up with the display and adjustment
module
Insert display and adjustment module
The display and adjustment module can be inserted into the sensor
andremovedagainatanytime.Youcanchooseanyoneoffourdifferent positions - each displaced by 90°. It is not necessary to interrupt
the power supply.
Proceed as follows:
1. Unscrew the housing cover
2. Place the display and adjustment module in the requested position onto the electronics and turn to the right until it snaps in
3. Screw housing cover with inspection window tightly back on
Removal is carried out in reverse order.
The display and adjustment module is powered by the sensor, an additional connection is not necessary.
Fig. 36: Installing the display and adjustment module in the electronics compartment of the single chamber housing
36535-EN-140209
36
VEGAPULS 68 • 4 … 20 mA/HART two-wire
6 Set up with the display and adjustment module
1
2
Fig. 37: Insertion of the display and adjustment module into the double chamber
housing
1 In the electronics compartment
2 Intheconnectioncompartment(withEx-d-iaversionnotpossible)
Note:
Ifyouintendtoretrofittheinstrumentwithadisplayandadjustment
module for continuous measured value indication, a higher cover with
an inspection glass is required.
6.2
Adjustment system
1
36535-EN-140209
2
Fig. 38: Display and adjustment elements
Key functions
1
2
LC display
Adjustment keys
•
[OK] key:
– Move to the menu overview
VEGAPULS 68 • 4 … 20 mA/HART two-wire
37
6 Set up with the display and adjustment module
•
•
•
Adjustment system
– Confirmselectedmenu
– Edit parameter
– Save value
[-] key:
– Presentation, change measured value
– Select list entry
– Select editing position
[+] key:
– Change value of the parameter
[ESC] key:
– Interrupt input
– Jump to next higher menu
The device is adjusted via the four keys of the display and adjustment
module. The LC display indicates the individual menu items. The
functions of the individual keys are shown in the above illustration. Approx. 60 minutes after the last pressing of a key, an automatic reset to
measuredvalueindicationistriggered.Anyvaluesnotconfirmedwith
[OK] will not be saved.
6.3
Parameter adjustment
The instrument is adapted to the application conditions via the parameter adjustment. The parameter adjustment is carried out with an
adjustment menu.
Main menu
Themainmenuisdividedintofivesectionswiththefollowingfunctions:
Setup: Settings, e.g., for measurement loop name, medium, application, vessel, adjustment, signal output
Display: Settings, e.g., for language, measured value display, lighting
Diagnosis: Information, e.g. on instrument status, pointer, measurement reliability, simulation, echo curve
Further settings: Instrument unit, false signal suppression, linearisation curve, reset, date/time, reset, copy function
Info: Instrument name, hardware and software version, date of manufacture, instrument features
38
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Information:
Inthisoperatinginstructionsmanual,theinstrument-specificparameters in the menu sections "Setup", "Diagnosis" and "Additional settings" are described. The general parameters in these menu section
are described in the operating instructions manual "Indicating and
adjustment module".
6 Set up with the display and adjustment module
Youcanfindintheoperatinginstructionsmanual"Display and adjustment module" also the description of the menu sections "Display" and
"Info".
In the main menu point "Setup", the individual submenu points
should be selected one after the other and provided with the correct
parameters to ensure optimum adjustment of the measurement. The
procedure is described in the following.
Setup
Setup - Medium
Eachmediumhasdifferentreflectionproperties.Withliquids,further
interferingfactorsarefluctuationproductsurfaceandfoamgeneration. With bulk solids, these are dust generation, material cone and
additional echoes from the vessel wall.
Toadaptthesensortothesedifferentmeasuringconditions,the
selection "Liquid" or "Bulk solid" should be made in this menu item.
Through this selection, the sensor is adapted perfectly to the product
andmeasurementreliability,particularlyinproductswithpoorreflective properties, is considerably increased.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup - Application
In addition to the medium, also the application, i.e. the measuring site,
caninfluencethemeasurement.
With this menu item, the sensor can be adapted to the applications.
The adjustment possibilities depend on the selection "Liquid" or "Bulk
solid" under "Medium".
36535-EN-140209
The following options are available when "Liquid" is selected:
The selection "Standpipe" opens a new window in which the inner
diameter of the applied standpipe is entered.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
39
6 Set up with the display and adjustment module
The following features form the basis of the applications:
Storage tank:
• Setup: large-volumed, upright cylindrical, spherical
• Productspeed:slowfillingandemptying
• Process/measurement conditions:
– Condensation
– Smooth product surface
– High requirements to the measurement accuracy
• Properties, sensor:
– Slight sensitivity against sporadic false echoes
– Stable and reliable measured values by averaging
– High accuracy
– Short reaction time of the sensor not required
Storage tanke with product circulation:
Setup: large-volumed, upright cylindrical, spherical
Productspeed:slowfillingandemptying
Installations: small laterally mounted or large top mounted stirrer
Process/measurement conditions:
– Relatively smooth product surface
– High requirements to the measurement accuracy
– Condensation
– Slight foam generation
– Overfillingpossible
• Properties, sensor:
– Slight sensitivity against sporadic false echoes
– Stable and reliable measured values by averaging
– High accuracy because not adjusted for max. speed
– False signal suppression recommended
•
•
•
•
Storage tank on ships (Cargo Tank):
Productspeed:slowfillingandemptying
Vessel:
– Installations in the bottom section (bracers, heating spirals)
– High sockets 200 … 500 mm, also with large diameters
• Process/measurement conditions:
– Condensation, buildup by movement
– Max. requirement on measurement accuracy from 95 %
• Properties, sensor:
– Slight sensitivity against sporadic false echoes
– Stable and reliable measured values by averaging
– High accuracy
– False signal suppression required
•
•
40
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Stirrer vessel (reactor):
Setup:allvesselsizespossible
Product speed:
•
•
6 Set up with the display and adjustment module
•
•
•
– Fasttoslowfillingpossible
– Vesselisveryoftenfilledandemptied
Vessel:
– Socket available
– Large agitator blades of metal
– Vortex breakers, heating spirals
Process/measurement conditions:
– Condensation, buildup by movement
– Strong spout generation
– Very agitated surface, foam generation
Properties, sensor:
– Higher measurement speed through lower averaging
– Sporadic false echoes are suppressed
Dosing vessel:
Setup:allvesselsizespossible
Product speed:
– Fastfillingandemptying
– Vesselisveryoftenfilledandemptied
• Vessel: narrow installation situation
• Process/measurement conditions:
– Condensation, buildup on the antenna
– Foam generation
• Properties, sensor:
– Measurementspeedoptimizedbyvirtuallynoaveraging
– Sporadic false echoes are suppressed
– False signal suppression recommended
•
•
Standpipe:
Productspeed:veryfastfillingandemptying
Vessel:
– Vent hole
– Joinslikeflanges,weldjoints
– Shifting of the running time in the tube
• Process/measurement conditions:
– Condensation
– Buildup
• Properties, sensor:
– Measurementspeedoptimizedthroughlittleaveraging
– Entering the tube inside diameter takes the running time shift
into consideration
– Echo detection sensitivity reduced
•
•
Bypass:
Product speed:
– Fastuptoslowfillingwithshortuptolongbypasstubepossible
– Often the level is hold via a control facility
• Vessel:
– Lateral outlets and inlets
– Joinslikeflanges,weldjoints
– Shifting of the running time in the tube
• Process/measurement conditions:
– Condensation
36535-EN-140209
•
VEGAPULS 68 • 4 … 20 mA/HART two-wire
41
6 Set up with the display and adjustment module
•
– Buildup
– Separation of oil and water possible
– Overfillingintotheantennapossible
Properties, sensor:
– Measurementspeedoptimizedthroughlittleaveraging
– Entering the tube inside diameter takes the running time shift
into consideration
– Echo detection sensitivity reduced
– False signal suppression recommended
Plastic tank:
Vessel:
– Measurementfixmountedorintegrated
– Measurement depending on the application through the vessel
top
– With empty vessel, the measurement can be carried out
through the bottom
• Process/measurement conditions:
– Condensation on the plastic ceiling
– In outside facilities water and snow on the vessel top possible
• Properties, sensor:
– False signals outside the vessel are not taken into consideration
– False signal suppression recommended
•
Transportable plastic tank:
Vessel:
– Materialandthicknessdifferent
– Measurement through the vessel top
• Process/measurement conditions:
– Measured value jump with vessel change
• Properties, sensor:
– Quickadaptationtochangingreflectionconditionsthrough
vessel change
– False signal suppression required
•
Open water (gauge measurement):
Gauge rate of change: slow gauge change
Process/measurement conditions:
– Distance sensor to water surface to big
– Extreme damping of output signal due to wave generation
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas
– Floating material and animals sporadically on the water surface
• Properties, sensor:
– Stable and reliable measured values by high averaging
– Insensitive in the close range
•
•
42
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Openflume(flowmeasurement):
Gauge rate of change: slow gauge change
Process/measurement conditions:
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas
– Smooth water surface
•
•
6 Set up with the display and adjustment module
•
– Exact measurement result required
– Distance to the water surface normally relatively high
Properties, sensor:
– Stable and reliable measured values by high averaging
– Insensitive in the close range
Rain water overfall (weir):
Gauge rate of change: slow gauge change
Process/measurement conditions:
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas
– Turbulent water surface
– Sensorfloodingpossible
• Properties, sensor:
– Stable and reliable measured values by high averaging
– Insensitive in the close range
•
•
Demonstration:
Adjustment for all applications which are not typically level measurement
– Instrument demonstration
– Object recognition/monitoring (additional settings required)
• Properties, sensor:
– Sensor accepts all measured value changes within the measuring range immediately
– High sensitivity against interferences, because virtually no
averaging
•
Caution:
Ifaseparationofliquidswithdifferentdielectricconstantoccursin
the vessel, for example through condensation, the radar sensor can
detect under certain circumstances only the medium with the higher
dielectric constant. Keep in mind that layer interfaces can cause faulty
measurements.
If you want to measure the total height of both liquids reliably, please
contact our service department or use an instrument specially designed for interface measurement.
The following options are available when "Bulk solid" is selected:
36535-EN-140209
The following features form the basis of the applications:
Silo (slim and high):
• Vessel of metal: weld joints
• Process/measurement conditions:
– Filling too close to the sensor
– System noise with completely empty silo increased
• Properties, sensor:
– Stable measured values through higher averaging
VEGAPULS 68 • 4 … 20 mA/HART two-wire
43
6 Set up with the display and adjustment module
– False signal suppression recommended with setup, required for
automatic false signal suppression
– Automaticfalsesignalsuppressionwithpartlyfilledvessel
Bunker (large-volumed):
Vessel of concrete or metal:
– Structured vessel walls
– Installations present
• Process/measurement conditions:
– Large distance to the medium
– Large angles of repose
• Properties, sensor:
– Mean averaging
– High measured value jumps are accepted
•
Bunkerwithfastfilling:
Vessel of concrete or metal, also multiple chamber silo:
– Structured vessel walls
– Installations present
• Process/measurement conditions:
– Measured value jumps, e.g. by truck loading
– Large distance to the medium
– Large angles of repose
• Properties, sensor:
– Lower averaging
– Very high measured value jumps are accepted
•
Heap:
Sensor mounting on movable conveyor belts
Detectionoftheheapprofile
Heightdetectionduringfilling
Process/measurement conditions:
– Measuredvaluejumps,e.g.bytheprofileoftheheaportraverses
– Large angles of repose
– Measurementnearthefillingstream
• Properties, sensor:
– Mean averaging
– High measured value jumps are accepted
•
•
•
•
Crusher:
Vessel: installations, wear and protective facilities available
Process/measurement conditions:
– Measured value jumps, e.g. by truck loading
– Fast reaction time
– Large distance to the medium
• Properties, sensor:
– Little averaging
– Max. reaction speed, very high measured value jumps are
accepted
•
•
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
44
6 Set up with the display and adjustment module
Demonstration:
• Adjustment for all applications which are not typically level measurement
– Instrument demonstration
– Object recognition/monitoring (additional settings required)
• Properties, sensor:
– Sensor accepts all measured value changes within the measuring range immediately
– High sensitivity against interferences, because virtually no
averaging
Through this selection, the sensor is adapted optimally to the application or the location and measurement reliability under the various
basic conditions is increased considerably.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup - Vessel height,
measuring range
With this selection, the operating range of the sensor is adapted to
thevesselheightandthereliabilitywithdifferentframeconditionsis
increased considerably.
Independent from this, the min. adjustment must be carried out.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup - Vessel form
Alsothevesselformcaninfluencethemeasurementapartfromthe
medium and the application. To adapt the sensor to these measurementconditions,thismenuitemoffersyoudifferentoptionsforvessel
bottom and ceiling in case of certain applications.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
36535-EN-140209
Setup - Adjustment
Since the radar sensor is a distance measuring instrument, the
distance from the sensor to the product surface is measured. For
indication of the real level, an allocation of the measured distance to
the percentage height must be carried out.
To perform the adjustment, enter the distance with full and empty vessel, see the following example:
VEGAPULS 68 • 4 … 20 mA/HART two-wire
45
3
100%
2
35 m
(1378")
1m
(39.37")
6 Set up with the display and adjustment module
0%
1
Fig.39:Parameteradjustmentexamplemin./max.adjustment
1
2
Min. level = max. meas. distance
Max. level = min. meas. distance
If these values are not known, an adjustment with the distances of for
example 10 % and 90 % is possible. Starting point for these distance
specificationsisalwaysthesealsurfaceofthethreadorflange.You
canfindspecificationsofthereferenceplaneinchapter"Technical
data". By means of these settings, the real level will be calculated.
The real product level during this adjustment is not important, because the min./max. adjustment is always carried out without changing the product level. These settings can be made ahead of time
without the instrument having to be installed.
Setup - Min. adjustment
Proceed as follows:
1. Select the menu item "Setup" with [->]andconfirmwith[OK].
Now select with [->] the menu item "Min. adjustment"andconfirm
with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
46
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the distance value.
6 Set up with the display and adjustment module
4. Enter the suitable distance value in m for the empty vessel (e.g.
distance from the sensor to the vessel bottom) corresponding to
the percentage value.
5. Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
Setup - Max. adjustment
Proceed as follows:
1. Select with [->]themenuitem"Max.adjustment"andconfirm
with [OK].
2. Prepare the percentage value for editing with [OK] and set the
cursor to the requested position with [->].
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the distance value.
4. Enter the appropriate distance value in m (corresponding to the
percentage value) for the full vessel. Keep in mind that the max.
level must lie below the min. distance to the antenna edge.
5. Save settings with [OK]
36535-EN-140209
Diagnosis - Peak value
The respective min. and max. measured value is saved in the sensor.
The values are displayed in the menu item "Peak values".
Diagnosis - Measurement When non-contact level sensors are used, the measurement can be
reliability
influencedbytherespectiveprocessconditions.Inthismenuitem,
the measurement reliability of the level echo is displayed as dB value.
The measurement reliability equals signal strength minus noise. The
higher the value, the more reliable the measurement. With a functioning measurement, the values are > 10 dB.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
47
6 Set up with the display and adjustment module
Diagnoses - Curve indica- The "Echocurve" shows the signal strength of the echoes over the
tion
measuring range in dB. The signal strength enables an evaluation of
the quality of the measurement.
The "False signal suppression" displays the saved false echoes (see
menu "Additional settings") of the empty vessel with signal strength in
"dB" over the measuring range.
A comparison of echo curve and false signal suppression allows a
more detailed statement of the reliability.
Theselectedcurveispermanentlyupdated.Asubmenuwithzoom
functions is opened with the [OK] key:
•
•
•
Diagnostics - Echo curve
memory
"X-Zoom":Zoomfunctionforthemeas.distance
"Y-Zoom":1,2,5and10xsignalmagnificationin"dB"
"Unzoom":Resetthepresentationtothenominalmeasuringrange
withsinglemagnification
With the function "Echocurvememory" the echo curve can be saved
at the time of setup. This is generally recommended; for using the Asset Management functions it is absolutely necessary. If possible, the
curve should be saved with a low level in the vessel.
With the adjustment software PACTware and the PC, the high resolutionechocurvecanbedisplayedandusedtorecognizesignal
changes over the operating time. In addition, the echo curve of the
setup can be also displayed in the echo curve window and compared
with the actual echo curve.
48
Thefollowingcircumstancescauseinterferingreflectionsandcan
influencethemeasurement:
•
•
•
•
High sockets
Vessel installations such as struts
Agitators
Buildup or welded joints on vessel walls
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Additional adjustments False signal suppression
6 Set up with the display and adjustment module
Note:
A false signal suppression detects, marks and saves these false signals so that they are no longer taken into account for level measurement.
This should be done with the low level so that all potential interfering
reflectionscanbedetected.
Proceed as follows:
1. Select the menu item "Additional settins" with [->]andconfirm
with [OK]. With [->] you have to select the menu item "False
signal suppression"andconfirmwith[OK].
2. Confirmagainwith[OK].
3. Confirmagainwith[OK].
4. Confirmagainwith[OK] and enter the actual distance from the
sensor to the product surface.
5. All interfering signals in this section are detected by the sensor
andstoredafterconfirmingwith[OK].
Note:
Check the distance to the product surface, because if an incorrect
(too large) value is entered, the existing level will be saved as a false
echo.Thefillinglevelwouldthennolongerbedetectableinthisarea.
36535-EN-140209
If a false signal suppression has already been created in the sensor,
the following menu window appears when selecting "False signal
suppression":
The menu item "Delete" is used to completely delete an already created false signal suppression. This is useful if the saved false signal
suppression no longer matches the metrological conditions in the
vessel.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
49
6 Set up with the display and adjustment module
The menu item "Extend" is used to extend an already created false
signal suppression. This is useful if a false signal suppression was
carried out with a too high level and not all false signals could be detected. When selecting "Extend", the distance to the product surface
of the created false signal suppression is displayed. This value can
now be changed and the false signal suppression can be extended to
this range.
Additional adjustments Linearization curve
Alinearizationisnecessaryforallvesselsinwhichthevesselvolume
doesnotincreaselinearlywiththelevel-e.g.ahorizontalcylindrical or spherical tank - and the indication or output of the volume is
required.Correspondinglinearizationcurvesarepreprogrammed
for these vessels. They represent the correlation between the level
percentage and vessel volume.
By activating the appropriate curve, the volume percentage of the
vessel is displayed correctly. If the volume should not be displayed in
percent but e.g. in l or kg, a scaling can be also set in the menu item
"Display".
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [ESC] and [->] key.
Caution:
Note the following if the instrument with corresponding approval is
usedaspartofanoverfillprotectionsystemaccordingtoWHG:
Ifalinearizationcurveisselected,themeasuringsignalisnolonger
necessarilylineartothefillingheight.Thismustbeconsideredbythe
user especially when adjusting the switching point on the limit signal
transmitter.
Additional adjustments
- Reset
With a reset, certain parameter adjustments carried out by the user
are reset.
The following reset functions are available:
Delivery status: Restoring the parameter settings at the time of shipmentfromthefactoryincl.theorder-specificsettings.Acreatedfalse
signalsuppression,user-programmablelinearizationcurveaswellas
the measured value memory will be deleted.
Setup: Resetting of the parameter settings to the default values of the
respective instrument in the menu item Setup. User-generated false
50
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Basic settings: Resetting the parameter settings incl. special parameters to the default values of the respective instrument. Any stored
falsesignalsuppression,userprogrammablelinearizationcurveas
well as the measured value memory is deleted.
6 Set up with the display and adjustment module
signalsuppression,user-programmedlinearizationcurve,measured
value memory as well as event memory remain untouched. The
linearizationissettolinear.
False signal suppression: Deleting a previously created false signal
suppression. The false signal suppression created in the factory
remains active.
Peak values measured value: Resetting of the measured min. and
max. distances to the actual measured value.
The following table shows the default values of the instrument. Depending on the instrument version, not all menu items are available or
differentlyassigned:
Menu
Menu item
Default value
Setup
Measurement
loop name
Sensor
Medium
Liquid/Water
Application
Storage tank
Vessel form
Vessel bottom, dished boiler end
Vesell height/
Measuring range
Recommended measuring range, see
"Technicaldata" in the supplement
Min. adjustment
Recommended measuring range, see
"Technicaldata" in the supplement
Max. adjustment
0,000 m(d)
Damping
0.0 s
Current output
mode
4 … 20 mA, < 3.6 mA
Current output
Min./Max.
Min. current 3.8 mA, max. current
20.5 mA
36535-EN-140209
Display
VEGAPULS 68 • 4 … 20 mA/HART two-wire
Bulk solids/Crushed stones, gravel
Silo
Vessel top, dished boiler end
Block adjustment
Released
Language
Like order
Displayed value
Distance
Display unit
m
Scalingsize
Volume
Scaling
0.00 lin %, 0 l
Backlight
Switchedoff
l
100.00 lin %, 100 l
51
6 Set up with the display and adjustment module
Menu
Menu item
Default value
Additional adjustments
Distance unit
m
Temperature unit
°C
Probe length
Length of the standpipe Ex factory
Linearisation
curve
Linear
HART mode
Standard
6.4
Address 0
Saving the parameter adjustment data
We recommended noting the adjusted data, e.g. in this operating
instructions manual, and archiving them afterwards. They are thus
available for multiple use or service purposes.
If the instrument is equipped with a display and adjustment module,
the data in the sensor can be saved in the display and adjustment
module. The procedure is described in the operating instructions
manual "Display and adjustment module" in the menu item "Copy
sensor data". The data remain there permanently even if the sensor
power supply fails.
The following data or settings for adjustment of the display and adjustment module are saved:
•
•
•
All data of the menu "Setup" and "Display"
In the menu "Additional adjustments" the items "Sensor-specific
units, temperature unit and linearization"
Thevaluesoftheuserprogrammablelinearizationcurve
The function can also be used to transfer settings from one instrument to another instrument of the same type. If it is necessary to
exchange a sensor, the display and adjustment module is inserted
into the replacement instrument and the data are likewise written into
the sensor via the menu item "Copy sensor data".
36535-EN-140209
52
VEGAPULS 68 • 4 … 20 mA/HART two-wire
7 Setup with PACTware
7
Setup with PACTware
7.1
Connect the PC
Via the interface adapter
directly on the sensor
2
1
3
Fig. 40: Connection of the PC directly to the sensor via the interface adapter
1 USBcabletothePC
2 InterfaceadapterVEGACONNECT
3 Sensor
Via the interface adapter
and HART
2
4
USB
N
OPE
3
TWIST
LO
CK
1
5
Fig.41:ConnectingthePCviaHARTtothesignalcable
36535-EN-140209
1
2
3
4
5
Sensor
HARTresistance250Ω(optionaldependingonprocessing)
Connection cable with 2 mm pins and terminals
Processingsystem/PLC/Voltagesupply
Interfaceadapter,forexampleVEGACONNECT4
Note:
With power supply units with integrated HART resistance (internal
resistanceapprox.250Ω),anadditionalexternalresistanceisnot
necessary. This applies, e.g. to the VEGA instruments VEGATRENN
149A, VEGAMET 381, VEGAMET 391. Common Ex separators are
alsousuallyequippedwithasufficientcurrentlimitationresistance.In
VEGAPULS 68 • 4 … 20 mA/HART two-wire
53
7 Setup with PACTware
such cases, the interface converter can be connected parallel to the
4 … 20 mA cable (dashed line in the previous illustration).
Prerequisites
7.2
Parameter adjustment
For parameter adjustment of the sensor via a Windows PC, the configurationsoftwarePACTwareandasuitableinstrumentdriver(DTM)
according to FDT standard are required. The up-to-date PACTware
version as well as all available DTMs are compiled in a DTM Collection. The DTMs can also be integrated into other frame applications
according to FDT standard.
Note:
To ensure that all instrument functions are supported, you should
always use the latest DTM Collection. Furthermore, not all described
functionsareincludedinolderfirmwareversions.Youcandownload
the latest instrument software from our homepage. A description of
the update procedure is also available in the Internet.
Further setup steps are described in the operating instructions manual "DTMCollection/PACTware" attached to each DTM Collection and
which can also be downloaded from the Internet. Detailed descriptions are available in the online help of PACTware and the DTMs.
Fig.42:ExampleofaDTMview
Standard/Full version
In the full version there is also an extended print function for complete
project documentation as well as a save function for measured value
54
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
All device DTMs are available as a free-of-charge standard version
and as a full version that must be purchased. In the standard version,
all functions for complete setup are already included. An assistant for
simpleprojectconfigurationsimplifiestheadjustmentconsiderably.
Saving/printing the project as well as import/export functions are also
part of the standard version.
7 Setup with PACTware
and echo curves. In addition, there is a tank calculation program as
well as a multiviewer for display and analysis of the saved measured
value and echo curves.
The standard version is available as a download under
www.vega.com/downloads and "Software". The full version is available on CD from the agency serving you.
7.3
Saving the parameter adjustment data
36535-EN-140209
We recommend documenting or saving the parameter adjustment
data via PACTware. That way the data are available for multiple use or
service purposes.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
55
8 Set up with other systems
8
8.1
Set up with other systems
DD adjustment programs
Device descriptions as Enhanced Device Description (EDD) are
available for DD adjustment programs such as, for example, AMS™
and PDM.
Thefilescanbedownloadedatwww.vega.com/downloads under
"Software".
8.2
Field Communicator 375, 475
Device descriptions for the instrument are available as EDD for parameter adjustment with the Field Communicator 375 or 475.
For the integration of the EDD in the Field Communicator 375 or 475,
the software "Easy Upgrade Utility" is required which is available from
the manufacturer. This software is updated via the Internet and new
EDDs are automatically taken over into the device catalogue of this
software after they are released by the manufacturer. They can then
be transferred to a Field Communicator.
36535-EN-140209
56
VEGAPULS 68 • 4 … 20 mA/HART two-wire
9 Diagnosis, asset management and service
9
Diagnosis, asset management and service
9.1
Maintenance
If the device is used correctly, no maintenance is required in normal
operation.
Insomeapplications,buildupontheantennasystemcaninfluence
the measuring result. Depending on the sensor and application, make
arrangements to avoid strong pollution of the antenna system. If necessary, clean the antenna system in certain intervals.
9.2
Measured value and event memory
The instrument has several memories which are available for diagnosis purposes. The data remain even with voltage interruption.
Measured value memory
Up to 60,000 measured values can be stored in the sensor in a ring
memory. Each entry contains date/time as well as the respective
measured value. Storable values are for example:
•
•
•
•
•
•
•
•
Distance
Filling height
Percentage value
Lin. percent
Scaled
Current value
Meas. reliability
Electronics temperature
When the instrument is shipped, the measured value memory is
active and stores distance, measurement certainty and electronics
temperature every 3 minutes.
The requested values and recording conditions are set via a PC with
PACTware/DTM or the control system with EDD. Data are thus read
out and also reset.
Event memory
Up to 500 events are automatically stored with a time stamp in the
sensor (non-deletable). Each entry contains date/time, event type,
event description and value. Event types are for example:
•
•
•
•
Modificationofaparameter
Switch-onandswitch-offtimes
Status messages (according to NE 107)
Error messages (according to NE 107)
36535-EN-140209
The data are read out via a PC with PACTware/DTM or the control
system with EDD.
Echo curve memory
The echo curves are stored with date and time and the corresponding
echo data. The memory is divided into two sections:
Echo curve of the setup: This is used as reference echo curve for
the measurement conditions during setup. Changes in the measurement conditions during operation or buildup on the sensor can thus
berecognized.Theechocurveofthesetupisstoredvia:
VEGAPULS 68 • 4 … 20 mA/HART two-wire
57
9 Diagnosis, asset management and service
•
•
•
PC with PACTware/DTM
Control system with EDD
Display and adjustment module
•
•
PC with PACTware/DTM
Control system with EDD
Further echo curves: Up to 10 echo curves can be stored in a ring
bufferinthismemorysection.Furtherechocurvesarestoredvia:
9.3
Asset Management function
The instrument features self-monitoring and diagnostics according
to NE 107 and VDI/VDE 2650. In addition to the status messages in
the following tables there are more detailed error messages available
under the menu item "Diagnostics" via the display and adjustment
module, PACTware/DTM and EDD.
Status messages
The status messages are divided into the following categories:
•
•
•
•
Failure
Function check
Outofspecification
Maintenance requirement
and explained by pictographs:
1
2
3
4
Fig. 43: Pictographs of the status messages
1
2
3
4
Failure - red
Outofspecification-yellow
Function check - orange
Maintenance - blue
Failure: Due to a malfunction in the instrument, a failure message is
outputted.
This status message is always active. It cannot be deactivated by the
user.
Function check: The instrument is in operation, the measured value
is temporarily invalid (for example during simulation).
This status message is inactive by default. It can be activated by the
user via PACTware/DTM or EDD.
This status message is inactive by default. It can be activated by the
user via PACTware/DTM or EDD.
58
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Outofspecification: The measured value is unstable because the
instrumentspecificationisexceeded(e.g.electronicstemperature).
9 Diagnosis, asset management and service
Maintenance:Duetoexternalinfluences,theinstrumentfunction
islimited.Themeasurementisaffected,butthemeasuredvalueis
still valid. Plan in maintenance for the instrument because a failure is
expected in the near future (e.g. due to buildup).
This status message is inactive by default. It can be activated by the
user via PACTware/DTM or EDD.
Failure
The following table shows the error codes in the status message
"Failure"andgivesinformationonthereasonandrectification.Keep
in mind that some information is only valid with four-wire instruments.
Code
Cause
Rectification
F013
– Sensor does not detect an
echo during operation
– Antenna system contaminated or defective
– Check or correct installation
and/or parameter adjustment
– Clean or exchange process
component or antenna
F017
– Adjustment not within
specification
– Change adjustment according to the limit values (difference between min. and
max.≥10mm)
F025
– Index markers are not con- – Checklinearizationtable
tinuously rising, for example – Delete table/Create new
illogical value pairs
F036
– Failed or interrupted software update
–
–
–
–
F040
– Hardware defect
– Exchanging the electronics
– Send instrument for repair
F080
– General software error
– Disconnect operating voltagebriefly
F105
– The instrument is still in the
start phase, the measured
value could not yet be
determined
– Wait for the end of the
switch-on phase
– Duration depending on
the version and parameter
adjustment up to approximately 3 min.
F113
– EMC interference
– Transmission error with the
external communication
with 4-wire power supply
unit
– RemoveEMCinfluences
– Exchange 4-wire power
supply unit or electronics
F125
– Temperature of the elec– Check ambient temperature
tronicsinthenon-specified – Isolate electronics
section
– Use instrument with higher
temperature range
Text message
no measured
value available
Adjustment
span too small
Error in the
linearization
table
No operable
software
Error in the
electronics
Determine
measured
value
36535-EN-140209
Communication error
Impermissible electronics
temperature
VEGAPULS 68 • 4 … 20 mA/HART two-wire
Repeat software update
Check electronics version
Exchanging the electronics
Send instrument for repair
59
9 Diagnosis, asset management and service
Code
Cause
Rectification
F260
– Error in the calibration carried out in the factory
– Error in the EEPROM
– Exchanging the electronics
– Send instrument for repair
F261
– Error during setup
– False signal suppression
faulty
– Error when carrying out a
reset
– Repeat setup
– Repeat reset
F264
– Adjustment not within the
– Check or correct installation
vessel height/measuring
and/or parameter adjustrange
ment
– Max. measuring range of
– Use an instrument with bigtheinstrumentnotsufficient
ger measuring range
Text message
Error in the
calibration
Error in the
configuration
Installation/
Setup error
F265
– Sensor no longer carries
out a measurement
Measurement
– Operating voltage too low
function disturbed
Function check
The following table shows the error codes and text messages in the
status message "Function check" and provides information on causes
as well as corrective measures.
Code
Cause
Rectification
C700
– A simulation is active
– Finish simulation
– Wait for the automatic end
after 60 mins.
Text message
Simulation active
Outofspecification
The following table shows the error codes and text messages in the
status message "Outofspecification" and provides information on
causes as well as corrective measures.
Cause
S600
Impermissible electronics
temperature
– Temperature of the elec– Check ambient temperature
tronicsinthenon-specified – Isolate electronics
section
– Use instrument with higher
temperature range
S601
– Dangerofvesseloverfilling
– Make sure that there is no
furtherfilling
– Check level in the vessel
S603
– Operating voltage below
specifiedrange
– Check electrical connection
– if necessary, increase
operating voltage
Overfilling
Impermissible operating
voltage
Rectification
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Code
Text message
60
– Check operating voltage
– Carry out a reset
– Disconnect operating voltagebriefly
9 Diagnosis, asset management and service
Maintenance
The following table shows the error codes and text messages in the
status message "Maintenance" and provides information on causes
as well as corrective measures.
Code
Cause
Rectification
M500
– With the reset to delivery
status, the data could not
be restored
– Repeat reset
– LoadXMLfilewithsensor
data into the sensor
M501
– Hardware error EEPROM
– Exchanging the electronics
– Send instrument for repair
M502
– Hardware error EEPROM
– Exchanging the electronics
– Send instrument for repair
M503
Reliability too
low
– The echot/noise ratio is the
small for a reliable measurement
– Check installation and
process conditions
– Clean the antenna
– Change polarisation direction
– Use instrument with higher
sensitivity
M504
– Hardware defect
– Check connections
– Exchanging the electronics
– Send instrument for repair
M505
– Level echo can no longer
be detected
– Clean the antenna
– Use a more suitable
antenna/sensor
– Remove possible false
echoes
– Optimizesensorposition
and orientation
Text message
Error with the
reset delivery
status
Error in the
non-active
linearization
table
Error in the
diagnosis
memory
Error on an
device interface
36535-EN-140209
No echo available
9.4
Rectify faults
Reaction when malfunctions occur
The operator of the system is responsible for taking suitable measures to rectify faults.
Procedure for fault rectification
Thefirstmeasuresare:
•
•
•
Evaluation of fault messages, for example via the display and
adjustment module
Checking the output signal
Treatment of measurement errors
VEGAPULS 68 • 4 … 20 mA/HART two-wire
61
9 Diagnosis, asset management and service
Further comprehensive diagnostics options are available with a PC
with PACTware and the suitable DTM. In many cases, the reasons can
bedeterminedinthiswayandfaultsrectified.
Check the 4 … 20 mA
signal
Connect a multimeter in the suitable measuring range according to
the wiring plan. The following table describes possible errors in the
current signal and helps to remove them:
Error
Rectification
4 … 20 mA signal – Fluctuations of
not stable
the measured
variable
– Set damping according to the
instrument via the display and
adjustment module or PACTware/
DTM
4 … 20 mA signal – Electrical conmissing
nection faulty
– Check connection according to
chapter "Connection steps" and
if necessary, correct according to
chapter "Wiring plan"
– Voltage supply
missing
– Check cables for breaks; repair if
necessary
– Operating voltage too low or
load resistance
too high
– Check, adapt if necessary
– Electronics
module in the
sensor defective
– Exchange the instrument or send it
in for repair
Current signal greater than
22 mA or less
than 3.6 mA
Treatment of measurement errors with bulk
solids
Cause
The below tables show typical examples for application-relevant
measurement errors with bulk solids. There are two measurement
errors:
•
•
•
Constant level
Filling
Emptying
Level
The images in column "Errorpattern" show the real level with a broken line and the level displayed by the sensor as a continuous line.
1
2
0
time
Real level
Level displayed by the sensor
Notes:
•
62
Wherever the sensor displays a constant value, the reason could
also be the fault setting of the current output to "Hold value"
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
1
2
9 Diagnosis, asset management and service
•
In case of a too low level indication, the reason could be a line
resistance that is too high
Measurement error with constant level
1. Measured value
shows a too low or too
high level
Error pattern
Level
Fault description
2. Measured value
jumps towards 100 %
0
Rectification
– Adapt min./max. adjustment
– Wronglinearizationcurve
– Adaptlinearizationcurve
– Due to the process, the amplitude of the product echo sinks
– A false signal suppression was
not carried out
– Carry out a false signal suppression
– Amplitude or position of a
false echo has changed (e.g.
condensation, buildup); false
signal suppression no longer
matches
– Determine the reason for the
changed false echoes, carry
out false signal suppression,
e.g. with condensation
Cause
Rectification
time
Level
0
Cause
– Min./max. adjustment not
correct
time
Measurementerrorduringfilling
3. Measured value
jumps towards 0 %
duringfilling
Error pattern
Level
Fault description
0
time
– Amplitude of a multiple echo
– Check parameter "Application",
(vessel top - product surface) is
especially vessel top, type
larger than the level echo
of medium, dished end, high
dielectric constant, adapt if
necessary
– The level echo cannot be distin- – Remove/reduce false echo:
guished from the false echo at
minimizeinterferinginstallaa false echo position (jumps to
tionsbychangingthepolarizamultiple echo)
tion direction
– Chose a more suitable installation position
4. Measured valuefluctuatesaround
10 … 20 %
Level
– Transversereflectionfroman
extraction funnel, amplitude of
thetransversereflectionlarger
than the level echo
0
time
– Direct sensor to the opposite
funnel wall, avoid crossing with
thefillingstream
– Various echoes from an uneven – Check parameter "Type of
product surface, e.g. a material
medium" and adapt, if necescone
sary
– Optimizeinstallationposition
and sensor orientation
– Select a more suitable installationposition,optimizesensor
orientation, e.g. with a swivelling holder
36535-EN-140209
– Reflectionsfromtheproduct
surface via the vessel wall
(deflection)
VEGAPULS 68 • 4 … 20 mA/HART two-wire
63
9 Diagnosis, asset management and service
5. Measured value
jumps sporadically to
100%duringfilling
Error pattern
Level
Fault description
0
time
Cause
Rectification
– Changing condensation or con- – Carry out a false signal suptamination on the antenna
pression or increase false
signal suppression with condensation/contamination in the
close range by editing
– With bulk solids use radar sensor with purging air connection
orflexibleantennacover
Measurement error during emptying
7. Measured value
jumps sporadically towards 100 % during
emptying
8. Measured valuefluctuatesaround
10 … 20 %
Level
Error pattern
0
time
Level
6. Measured value remains unchanged in
the close range during
emptying
0
time
Level
Fault description
0
time
Cause
Rectification
– False echo larger than the level – Remove false echoes in the
echo
close range. Check: Antenna
must protrude out of the socket
– Level echo too small
– Remove contamination on the
antenna
– Minimizeinterferinginstallations in the close range by
changingthepolarization
direction
– After removing the false echoes, the false signal suppression must be deleted. Carry out
a new false signal suppression
– Changing condensation or con- – Carry out false signal supprestamination on the antenna
sion or increase false signal
suppression in the close range
by editing
– With bulk solids use radar sensor with purging air connection
orflexibleantennacover
– Various echoes from an uneven – Check parameter "Type of
product surface, e.g. an extracmedium" and adapt, if necestion funnel
sary
– Optimizeinstallationposition
– Reflectionsfromtheproduct
and sensor orientation
surface via the vessel wall
(deflection)
Reaction after fault rectification
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Setup" must be carried out again or must
be checked for plausibility and completeness.
24 hour service hotline
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. +49 1805 858550.
Sinceweofferthisserviceworldwide,thesupportisprovidedin
English. The service itself is free of charge, the only costs involved are
the normal call charges.
64
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
The hotline is also available outside normal working hours, seven
days a week around the clock.
9 Diagnosis, asset management and service
9.5
Exchanging the electronics module
If the electronics module is defective, it can be replaced by the user.
In Ex applications, only instruments and electronics modules with appropriate Ex approval may be used.
If there is no electronics module available on site, the electronics
module can be ordered through the agency serving you. The electronicsmodulesareadaptedtotherespectivesensoranddifferinsignal
output or voltage supply.
The new electronics module must be loaded with the default settings
of the sensor. These are the options:
•
•
In the factory
Or on site by the user
In both cases, the serial number of the sensor is needed. The serial
numbers are stated on the type label of the instrument, on the inside
of the housing as well as on the delivery note.
Whenloadingonsite,firstofalltheorderdatamustbedownloaded
from the Internet (see operating instructions manual "Electronics
module").
9.6
Software update
The following components are required to update the sensor software:
•
•
•
•
•
Sensor
Voltage supply
Interface adapter VEGACONNECT
PC with PACTware
Currentsensorsoftwareasfile
Youcanfindtheactualsensorsoftwareaswellasdetailedinformation of the procedure under "www.vega.com/downloads" and
"Software".
Youcanfindinformationabouttheinstallationinthedownloadfile.
Caution:
Instruments with approvals can be bound to certain software versions.Thereforemakesurethattheapprovalremainseffectivewitha
software update.
Youcanfinddetailedinformationonwww.vega.com/downloads and
"Approvals".
36535-EN-140209
9.7
How to proceed if a repair is needed
Youcanfindarepairformaswellasdetailedinformationonhowto
proceed under www.vega.com/downloads and "Formsandcertificates".
By doing this you help us carry out the repair quickly and without having to call back for needed information.
If a repair is necessary, please proceed as follows:
•
Printandfilloutoneformperinstrument
VEGAPULS 68 • 4 … 20 mA/HART two-wire
65
9 Diagnosis, asset management and service
•
•
•
Clean the instrument and pack it damage-proof
Attach the completed form and, if need be, also a safety data
sheet outside on the packaging
Please contact the agency serving you to get the address for
thereturnshipment.Youcanfindtheagencyonourhomepage
www.vega.com.
36535-EN-140209
66
VEGAPULS 68 • 4 … 20 mA/HART two-wire
10 Dismounting
10 Dismounting
10.1 Dismounting steps
Warning:
Before dismounting, be aware of dangerous process conditions such
as e.g. pressure in the vessel or pipeline, high temperatures, corrosive or toxic products etc.
Take note of chapters "Mounting" and "Connecting to power supply"
and carry out the listed steps in reverse order.
10.2 Disposal
The instrument consists of materials which can be recycled by specialised recycling companies. We use recyclable materials and have
designed the parts to be easily separable.
Correctdisposalavoidsnegativeeffectsonhumansandtheenvironment and ensures recycling of useful raw materials.
Materials: see chapter "Technicaldata"
If you have no way to dispose of the old instrument properly, please
contact us concerning return and disposal.
36535-EN-140209
WEEE directive 2002/96/EG
This instrument is not subject to the WEEE directive 2002/96/EG and
the respective national laws. Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting
points. These may be used only for privately used products according
to the WEEE directive.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
67
11 Supplement
11 Supplement
11.1 Technical data
General data
316L corresponds to 1.4404 or 1.4435
Materials, wetted parts
Ʋ Processfitting
Ʋ Process seal
Ʋ Antenna
Ʋ Antenna impedance cone
Ʋ seal, antenna system
Materials, non-wetted parts
Ʋ Plastic housing
Ʋ Aluminium die-casting housing
Ʋ Stainless steel housing
Ʋ Seal between housing and housing
cover
Ʋ Inspection window in housing cover
(optional)
Ʋ Ground terminal
Ohmic contact
Processfittings
Ʋ Pipe thread, cylindrical (ISO 228 T1)
Ʋ American pipe thread, tapered
Ʋ Flanges
Weights
Ʋ Instrument (depending on housing,
processfittingandantenna)
Ʋ Antenna extension
Length antenna extension max.
316L, Hastelloy C22, Monell Alloy
On site (instruments with thread: Klingersil C-4400 is
attached)
316L, Hastelloy C22, Tantalum, 316L electropolished,
stainless steel investment casting 1.4848, Monell Alloy,
316L Safecoat coated
PTFE TFM 1600 or PTFE INOFLON M290, PP, PEEK,
ceramic (99.7 % Al2O3)
FKM(SHSFPM70C3GLT),FFKM(Kalrez6375),FFKM
(Kalrez2035),FFKM(Kalrez6230-FDA),graphite
(99.9 %)
plastic PBT (Polyester)
Aluminium die-casting AlSi10Mg, powder-coated - basis:
Polyester
316L
NBR (stainless steel housing, precision casting), silicone
(aluminium/plastic housing; stainless steel housing,
electropolished)
Polycarbonate
316L
Betweengroundterminal,processfittingandantenna
G1½ according to DIN 3852-A
1½ NPT, 2 NPT
DIN from DN 25, ANSI from 1"
approx. 2 … 17.2 kg (4.409 … 37.92 lbs)
1.6 kg/m (1.157 lbs/ft)
5.85 m (19.19 ft)
Torque for NPT cable glands and Conduit tubes
68
max. 10 Nm (7.376 lbf ft)
max. 50 Nm (36.88 lbf ft)
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Ʋ Plastic housing
Ʋ Aluminium/Stainless steel housing
11 Supplement
Input variable
Measured variable
The measured quantity is the distance between process
fittingofthesensorandproductsurface.Thereference
plane is the seal surface on the hexagon or the lower
sideoftheflange.
1
3
4
2
Fig. 53: Data of the input variable
1
2
3
4
Reference plane
Measured variable, max. measuring range
Antenna length
Usefulmeasuringrange
Max. measuring range
75 m (246.1 ft)
Recommended meas. range depending on the antenna diameter
Ʋ ø 40 mm (1.575 in)
Ʋ ø 48 mm (1.89 in)
Ʋ ø 75 mm (2.953 in)
Ʋ ø 95 mm (3.74 in)
36535-EN-140209
Ʋ Parabolic antenna
up to 15 m (49.21 ft)
up to 20 m (65.62 ft)
up to 40 m (131.2 ft)
up to 50 m (164 ft)
up to 75 m (246.1 ft)
Output variable
Output signal
4 … 20 mA/HART
Signal resolution
0.3 µA
Range of the output signal
Resolution, digital
3.8 … 20.5 mA/HART (default setting)
< 1 mm (0.039 in)
Failure signal current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
Max. output current
22 mA
VEGAPULS 68 • 4 … 20 mA/HART two-wire
69
11 Supplement
Starting current
≤3.6mA;≤10mAfor5msafterswitchingon
Damping (63 % of the input variable),
adjustable
0 … 999 s
Load
see load diagram under Power supply
HART output values according to HART 7.01)
Ʋ PV (Primary Value)
Distance to the level
Ʋ SV (Secondary Value)
Level as percentage value
Ʋ TV (Third Value)
Linearised percentage value
Ʋ QV (Fourth Value)
Scaled measured value
FulfilledHARTspecification
Further information of Manufacturer ID,
Device ID, Device Revision
7.0
See website of HART Communication Foundation
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
+18 … +30 °C (+64 … +86 °F)
Ʋ Relative humidity
45 … 75 %
Ʋ Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Ʋ Min. distance to installations
> 200 mm (7.874 in)
Ʋ Falsereflections
Biggest false signal, 20 dB smaller than the useful signal
Installation reference conditions
Ʋ Reflector
Planeplatereflector
Deviation with liquids
See following diagrams
10 mm (0.394 in)
2 mm (0.079 in)
0
- 2 mm (- 0.079 in)
1,0 m (3.28 ft)
- 10 mm (- 0.394 in)
1 2
3
Fig. 54: Deviation under reference conditions
1
2
3
Reference plane
Antenna edge
Recommended measuring range
≤±1mm
DeviationunderEMCinfluence
≤±30mm
Deviation with bulk solids
1)
70
The values depend to a great extent on the application.
Bindingspecificationsarethusnotpossible.
Default values, can be assigned individually
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Repeatability
11 Supplement
Variablesinfluencingmeasurementaccuracy
Specificationsapplytothedigitalmeasuredvalue
Temperature drift - Digital output
±3mm/10Krelatingtothemax.measuringrangeor
max. 10 mm
Additional deviation through electromag- <±50mm
netic interference acc. to EN 61326
Specificationsapplyalsotothecurrentoutput
Temperature drift - Current output
±0.03%/10Krelatingtothe16mAspanmax.±0.3%
Deviation on the current output due to
strong, high frequency electromagnetic
fieldsacc.toEN61326
<±150µA
Deviation on the current output through
analogue/digital conversion
<±15µA
Characteristics and performance data
Measuring frequency
K-band(26GHztechnology)
Measuring cycle time approx.
Step response time2)
Beam angle3)
Ʋ Horn antenna ø 40 mm (1.575 in)
Ʋ Horn antenna ø 48 mm (1.89 in)
Ʋ Horn antenna ø 75 mm (2.953 in)
Ʋ Horn antenna ø 95 mm (3.74 in)
700 ms
≤3s
20°
15°
10°
8°
Ʋ Parabolic antenna
3°
Ʋ Average spectral transmission power
density
-14dBm/MHzEIRP
Emitted HF power (depending on the parameter adjustment)4)
Ʋ Max. spectral transmission power
density
Ʋ Max. power density in a distance of
1m
+43dBm/50MHzEIRP
< 1 µW/cm²
Ambient conditions
Ambient, storage and transport tempera- -40 … +80 °C (-40 … +176 °F)
ture
36535-EN-140209
Process conditions
Fortheprocessconditions,pleasealsonotethespecificationsonthetypelabel.Thelowestvalue
always applies.
Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk
solidsapplications,untiltheoutputsignalhastakenforthefirsttime90%ofthefinalvalue(IEC61298-2).
3)
Outsidethespecifiedbeamangle,theenergyoftheradarsignalhasalevelwhichisreducedby50%(-3dB)
4)
EIRP: Equivalent Isotropic Radiated Power
2)
VEGAPULS 68 • 4 … 20 mA/HART two-wire
71
11 Supplement
Seal
Antenna impedance
cone
Process temperature (measured on the process
fitting)
FKM (SHS FPM 70C3
GLT)
PTFE
-40 … +130 °C (-40 … +266 °F)
PTFE5)
-40 … +200 °C (-40 … +392 °F)
PEEK
-40 … +200 °C (-40 … +392 °F)
PTFE
-20 … +130 °C (-4 … +266 °F)
PEEK
-20 … +250 °C (-4 … +482 °F)
PTFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +210 °C (5 … +410 °F)
PTFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +250 °C (5 … +482 °F)
Graphite
Ceramic
-196 … +450 °C (-321 … +842 °F)
Graphite(processfitting
Hastelloy C 22)
Ceramic
-196 … +400 °C (-321 … +752 °F)
6)
FFKM(Kalrez6375)
FFKM(Kalrez2035)
FFKM(Kalrez6230)
Vessel pressure - horn antenna
Ʋ Antenna impedance cone PTFE
-1 … 40 bar (-100 … 4000 kPa/-14.5 … 580 psig)
Ʋ Antenna impedance cone PEEK
-1 … 100 bar (-100 … 10000 kPa/-14.5 … 1450 psig)
Ʋ Antenna impedance cone PP
-1 … 3 bar (-100 … 300 kPa/-14.5 … 43.5 psig)
Ʋ Antenna impedance cone ceramic
-1 … 160 bar (-100 … 16000 kPa/-14.5 … 2320 psig)
Vessel pressure - parabolic antenna
-1 … 6 bar (-100 … 6000 kPa/-14.5 … 870 psig)
Vesselpressurerelatingtotheflange
nominal stage
see supplementary instructions manual "Flanges accordingtoDIN-EN-ASME-JIS"
Vessel pressure with swivelling holder
-1 … 1 bar (-100 … 100 kPa/-14.5 … 14.5 psig)
Vibration resistance
Ʋ Horn antenna
4gat5…200HzaccordingtoEN60068-2-6(vibration
with resonance)
Ʋ Parabolic antenna
1gat5…200HzaccordingtoEN60068-2-6(vibration
with resonance)
Shock resistance
Ʋ Horn antenna
100 g, 6 ms according to EN 60068-2-27 (mechanical
shock)
Ʋ Parabolic antenna
25 g, 6 ms according to EN 60068-2-27 (mechanical
shock)
Data on rinsing air connection
Max. permissible pressure
6 bar (87.02 psig)
Air volume with horn antenna, depending on pressure (recommended area)
Withoutrefluxvalve
Withrefluxvalve
0.5 bar (7.25 psig)
3.3 m /h
1.2 m3/h
5)
6)
72
3
Not with steam
Not with steam
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Pressure
11 Supplement
Pressure
Withoutrefluxvalve
Withrefluxvalve
0.6 bar (8.70 psig)
3.5 m3/h
1.4 m3/h
0.7 bar (10.15 psig)
3.7 m3/h
1.7 m3/h
0.8 bar (11.60 psig)
3.9 m /h
1.8 m3/h
0.9 bar (13.05 psig)
4.0 m /h
2.1 m3/h
1 bar (14.5 psig)
4.2 m3/h
2.2 m3/h
1.5 bar (21.76 psig)
5.0 m3/h
3.2 m3/h
2 bar (29.0 psig)
5.5 m /h
4.5 m3/h
3
3
3
Air volume with parabolic antenna, depending on pressure (recommended area)
Pressure
Withoutrefluxvalve
Withrefluxvalve
0.5 bar (7.25 psig)
3.0 m3/h
1.2 m3/h
0.6 bar (8.70 psig)
3.2 m3/h
1.4 m3/h
0.7 bar (10.15 psig)
3.4 m /h
1.7 m3/h
0.8 bar (11.60 psig)
3.5 m3/h
1.9 m3/h
0.9 bar (13.05 psig)
3.6 m3/h
2.0 m3/h
1 bar (14.5 psig)
3.8 m /h
2.2 m3/h
1.5 bar (21.76 psig)
4.3 m /h
3.5 m3/h
2 bar (29.0 psig)
4.8 m3/h
4.0 m3/h
Thread
Closure with
Ʋ Non-Ex
Ʋ Ex
3
3
3
G⅛
Dust protection cover of PE
Threaded plug of 316Ti
Refluxvalve-unmounted(asoptionwithnon-Exversion,includedinthescopeofdeliverywithEx
version)
Ʋ Material
Ʋ Seal
Ʋ for tube diameter
Ʋ opening pressure
Ʋ Nominal pressure stage
316Ti
FKM(SHSFPM70C3GLT),FFKM(Kalrez6375)
6 mm
0.5 bar (7.25 psig)
PN 250
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar
Options of the cable entry
Ʋ Cable gland
36535-EN-140209
Ʋ Cable entry
Ʋ Blind plug
M20 x 1.5 (cable: ø 5 … 9 mm)
½ NPT
M20 x 1.5; ½ NPT
Ʋ Closing cap
M20 x 1.5; ½ NPT
Ʋ Signal circuit
Plug M12 x 1, according to ISO 4400, Harting HAN,
7/8" FF
Plug options
VEGAPULS 68 • 4 … 20 mA/HART two-wire
73
11 Supplement
Ʋ Indication circuit
M12 x 1 plug
Wire cross-section (spring-loaded terminals)
Ʋ Massive wire, cord
Ʋ Stranded wire with end sleeve
0.2 … 2.5 mm² (AWG 24 … 14)
0.2 … 1.5 mm² (AWG 24 … 16)
Electromechanical data - version IP 66/IP 68 (1 bar)
Options of the cable entry
Ʋ Cable gland with integrated connection cable
Ʋ Cable entry
Ʋ Blind plug
Connection cable
Ʋ Wire cross-section
Ʋ Wire resistance
Ʋ Tensile strength
Ʋ Standard length
Ʋ Max. length
Ʋ Min. bending radius
Ʋ Diameter approx.
Ʋ Colour - Non-Ex version
Ʋ Colour - Ex-version
Display and adjustment module
Display element
Measured value indication
Ʋ Number of digits
Ʋ Sizeofdigits
Adjustment elements
Protection rating
Ʋ unassembled
Ʋ mounted into the housing without
cover
Materials
Ʋ Housing
Ʋ Inspection window
M20 x 1.5 (cable: ø 5 … 9 mm)
½ NPT
M20 x 1.5; ½ NPT
0.5 mm² (AWG 20)
<0.036Ω/m
< 1200 N (270 lbf)
5 m (16.4 ft)
180 m (590.6 ft)
25 mm (0.984 in) with 25 °C (77 °F)
8 mm (0.315 in)
Black
Blue
Display with backlight
5
W x H = 7 x 13 mm
4 keys
IP 20
IP 40
ABS
Polyester foil
Configuration,connectioncable
Cable length max.
74
4-wire, screened
25 m
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Interface to the external display and adjustment unit
Data transmission
digital (I²C-Bus)
11 Supplement
Integrated clock
Date format
Day.Month.Year
TimezoneExfactory
CET
Time format
12 h/24 h
Rate deviation max.
10.5 min/year
Measurement electronics temerature
Resolution
1 °C (1.8 °F)
Accuracy
±1°C(1.8°F)
Voltage supply
Operating voltage UB
Ʋ Non-Ex instrument
9.6 … 35 V DC
Ʋ Ex-ia instrument
9.6 … 30 V DC
Ʋ Ex-d-ia instrument
14 … 35 V DC
Ʋ Ex-d-ia instrument with ship approval
15 … 35 V DC
Ʋ Non-Ex instrument
16 … 35 V DC
Operating voltage UB - illuminated display and adjustment module
Ʋ Ex-ia instrument
16 … 30 V DC
Ʋ Ex-d-ia instrument
20 … 35 V DC
Interpolation protection
Integrated
Permissible residual ripple - Non-Ex, Ex-ia instrument
Ʋ for 9.6 V< UB < 14 V
≤0.7Veff(16…400Hz)
Ʋ for 18 V< UB < 36 V
≤1.0Veff(16…400Hz)
Permissible residual ripple - Ex-d-ia instrument
Ʋ for 18 V< UB < 36 V
≤1Veff(16…400Hz)
Ʋ Calculation
(UB - Umin)/0.022 A
Load resistor
Ʋ Example - Non-Ex instrument with
UB= 24 V DC
(24V-9.6V)/0.022A=655Ω
Electrical protective measures
Protection rating
Housing material
Version
IP-protection class
NEMA protection
Plastic
Single chamber
IP 66/IP 67
NEMA4X
Double chamber
IP 66/IP 67
NEMA4X
Single chamber
IP 66/IP 68 (0.2 bar)
NEMA 6P
Double chamber
IP 66/IP 67
NEMA4X
IP 68 (1 bar)
NEMA 6P
36535-EN-140209
Aluminium
VEGAPULS 68 • 4 … 20 mA/HART two-wire
IP 68 (1 bar)
IP 66/IP 68 (0.2 bar)
NEMA 6P
NEMA 6P
75
11 Supplement
Housing material
Version
IP-protection class
NEMA protection
Stainless steel, electropolished
Single chamber
IP 66/IP 68 (0.2 bar)
NEMA 6P
Stainless steel, investment Single chamber
casting
IP 66/IP 68 (0.2 bar)
NEMA 6P
IP 66/IP 67
NEMA4X
IP 68 (1 bar)
NEMA 6P
IP 68 (1 bar)
Double chamber
Overvoltage category
Protection class
IP 66/IP 68 (0.2 bar)
NEMA 6P
NEMA 6P
III
III
Approvals
Instrumentswithapprovalscanhavedifferenttechnicaldatadependingontheversion.
For that reason the associated approval documents of these instruments have to be carefully
noted. They are part of the delivery or can be downloaded under www.vega.com, "VEGATools"
and "Instrument search" as well as via www.vega.com/downloads and "Approvals".
Overvoltage protection
Max. permissible current per circuit
0.6 A
Li per circuit
0 mH
Ri per circuit
Ci per circuit
Response voltage
Response time
Nominal leakage current
<3.6Ω
0 nF
41 V DC
< 10-11 s
< 10 kA (8/20 µs)
11.2 Dimensions
The following dimensional drawings represent only an extract of all possible versions. Detailed
dimensional drawings can be downloaded at www.vega.com/downloads under "Drawings".
36535-EN-140209
76
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11 Supplement
Plastic housing
~ 69 mm
(2.72")
ø 79 mm
(3.11")
~ 84 mm
(3.31")
ø 79 mm
(3.11")
M20x1,5/
½ NPT
112 mm
(4.41")
112 mm
(4.41")
M16x1,5
M20x1,5/
½ NPT
1
2
Fig.55:HousingversionsinprotectionIP66/IP68(0.2bar)-withintegrateddisplayandadjustmentmodulethe
housingis9mm/0.35inhigher
1
2
Single chamber version
Double chamber version
Aluminium housing
~ 116 mm
(4.57")
~ 87 mm
(3.43")
ø 86 mm
(3.39")
ø 86 mm
(3.39")
120 mm
(4.72")
116 mm
(4.57")
M16x1,5
M20x1,5
M20x1,5/
½ NPT
1
M20x1,5/
½ NPT
2
Fig.56:HousingversionsinprotectionIP66/IP68(0.2bar)-withintegrateddisplayandadjustmentmodulethe
housingis9mm/0.35inhigher
Single chamber version
Double chamber version
36535-EN-140209
1
2
VEGAPULS 68 • 4 … 20 mA/HART two-wire
77
11 Supplement
Aluminium housing in protection rating IP 66/IP 68 (1 bar)
~ 105 mm
(4.13")
~ 150 mm
(5.91")
ø 86 mm
(3.39")
ø 86 mm
(3.39")
120 mm
(4.72")
116 mm
(4.57")
M16x1,5
M20x1,5
M20x1,5
M20x1,5/
½ NPT
1
2
Fig.57:HousingversionsinprotectionIP␣66/IP␣68(1␣bar)-withintegrateddisplayandadjustmentmodulethe
housingis9␣mm/0.35␣inhigher
1
2
Single chamber version
Double chamber version
Stainless steel housing
~ 87 mm
(3.43")
~ 69 mm
(2.72")
ø 79 mm
(3.11")
~ 59 mm
(2.32")
ø 80 mm
(3.15")
ø 86 mm
(3.39")
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
2
120 mm
(4.72")
112 mm
(4.41")
117 mm
(4.61")
M16x1,5
M20x1,5/
½ NPT
3
Fig.58:HousingversionsinprotectionIP66/IP68(0.2bar)-withintegrateddisplayandadjustmentmodulethe
housingis9mm/0.35inhigher
1
2
3
Single chamber version, electropolished
Single chamber version, precision casting
Double chamber version, precision casting
36535-EN-140209
78
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11 Supplement
Stainless steel housing in protection rating IP 66/IP 68, 1 bar
~ 93 mm
(3.66")
~ 103 mm
(4.06")
ø 80 mm
(3.15")
~ 105 mm
(4.13")
ø 79 mm
(3.11")
ø 86 mm
(3.39")
M20x1,5/
½ NPT
120 mm
(4.72")
112 mm
(4.41")
117 mm
(4.61")
M16x1,5
M20x1,5
1
M20x1,5/
½ NPT
2
3
Fig.59:HousingversionsinprotectionIP␣66/IP␣68(1␣bar)-withintegrateddisplayandadjustmentmodulethe
housingis9␣mm/0.35␣inhigher
1
2
3
Single chamber version, electropolished
Single chamber version, precision casting
Double chamber version, precision casting
G1½A / 1½ NPT
x
100
ø40
3"
216
ø75
2"
4"
x
y
1½"
inch
1½"
2"
3"
4"
120
430
y
3.94"
4.72"
8.50"
16.93"
ø48
ø95
x
ø1.58"
ø1.89"
ø2.95"
ø3.74"
y
y
mm
22 mm (0.87")
2
144 mm (5.67")
38 mm (1.50")
1
SW 46 mm
(1.81")
22 mm (0.87")
VEGAPULS 68, horn antenna in threaded version
36535-EN-140209
x
Fig.60:VEGAPULS68,hornantennainthreadedversion
1
2
Standard
With temperature adapter up to 250 °C
VEGAPULS 68 • 4 … 20 mA/HART two-wire
79
11 Supplement
VEGAPULS68,hornantennainflangeversion
2
165 mm (6.5")
y
60 mm
(2.36")
1
x
mm
y
x
inch
ø48
2"
1½"
100
ø40
3"
216
ø75
2"
4"
120
430
ø95
1½"
3"
4"
y
3.94"
4.72"
8.50"
16.93"
x
ø1.58"
ø1.89"
ø2.95"
ø3.74"
Fig.61:VEGAPULS68,hornantennainflangeversion
1
2
Standard
With temperature adapter up to 250 °C
36535-EN-140209
80
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11 Supplement
260 mm (10.24")
VEGAPULS68,hornantennainflangeversion450°C
y
120
216
287
y
inch
4.72"
2"
3" 8.50"
4" 11.30"
x
ø 48
ø 75
ø 95
y
mm
2"
3"
4"
x
ø 1.89"
ø 2.95"
ø 3.74"
x
36535-EN-140209
Fig.62:VEGAPULS68,hornantennainflangeversionwithtemperatureadapterupto450°C
VEGAPULS 68 • 4 … 20 mA/HART two-wire
81
11 Supplement
VEGAPULS 68, horn antenna and swivelling holder
max. 15
°
(0.59")
2
x
100
ø 40
3"
216
ø 75
2"
x
y
1½"
4"
inch
1½"
2"
3"
4"
120
430
y
3.94"
4.72"
8.50"
16.93"
ø 48
ø 95
20 m
m
(0.79
")
mm
x
ø 1.58"
ø 1.89"
ø 2.95"
ø 3.74"
y
y
20 m
m
(0.79
")
146 m
m (5.7
5")
40 m
m
(1.58
")
1
x
Fig.63:VEGAPULS68,hornantennaandswivellingholder
1
2
Standard
With temperature adapter up to 250 °C
36535-EN-140209
82
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11 Supplement
VEGAPULS68,hornantennaandswivellingholder,threadedfitting
max. 10°
(0.39")
2
102,2 m
m
(4.02")
159,6 mm
(6.28")
53,6 mm
(2.11")
1
SW 70 mm
(2.76")
G2 / 2NPT
102,2 m
m
(4.02")
ø 40 / 4
8
(1.57" / mm
1.89")
ø 40 / 4
8
(1.57" / mm
1.89")
Fig.64:VEGAPULS68,hornantennaandswivellingholder,threadedfitting
Standard
With temperature adapter up to 250 °C
36535-EN-140209
1
2
VEGAPULS 68 • 4 … 20 mA/HART two-wire
83
11 Supplement
VEGAPULS 68, parabolic antenna and swivelling holder
max. 15
°
(0.59")
1
ø 243
130 m
m (5.1
2")
120 m
m (4.7
2")
40 m
m
(1.58
")
2
mm (9
.57")
Fig.65:VEGAPULS68,parabolicantennaandswivellingholder
1
2
Standard
With temperature adapter up to 200 °C
36535-EN-140209
84
VEGAPULS 68 • 4 … 20 mA/HART two-wire
11 Supplement
11.3 Industrial property rights
VEGA product lines are global protected by industrial property rights. Further information see
www.vega.com.
Only in U.S.A.: Further information see patent label at the sensor housing.
VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte.
Nähere Informationen unter www.vega.com.
Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle. Pour plus d'informations, on pourra se référer au site www.vega.com.
VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad industrial. Para mayor información revise la pagina web www.vega.com.
Линии продукции фирмы ВЕГА защищаются по всему миру правами на интеллектуальную
собственность. Дальнейшую информацию смотрите на сайте www.vega.com.
VEGA系列产品在全球享有知识产权保护。
进一步信息请参见网站<www.vega.com>。
11.4 Trademark
36535-EN-140209
All the brands as well as trade and company names used are property of their lawful proprietor/
originator.
VEGAPULS 68 • 4 … 20 mA/HART two-wire
85
INDEX
INDEX
A
Adjustment 46, 47
Adjustment system 38
Agitator 23
Application
– Bulk solid 43
– Liquid 39
– Standpipe 39
C
Check output signal 62
Connecting
– Electrically 29
– Mechanically 13
– To the PC 53
Connection
– Cable 28
– Steps 29
– Technology 29
Curve indication
– Echo curve 48
– False signal suppression 48
D
Default values 51
Deviation 62
E
Echo curve memory 57
Echo curve of the setup 48
EDD (Enhanced Device Description) 56
Electronics and terminal compartment, single
chamber housing 31
Error codes 60
Event memory 57
M
Main menu 38
Meas. reliability 47
Measured value memory 57
N
NAMUR NE 107 59, 61
O
OverfillprotectionaccordingtoWHG50
P
Peak value indicator 47
Polarisation 15
R
Reflectionproperties39
Repair 65
Reset 50
S
Service hotline 64
Socket 18
Status messages - NAMUR NE 107 58
Subsurface enclosure 25
T
Type label 8
V
Vessel form 45
Vessel height 45
Vessel installations 23
Vessel insulation 24
F
False signal suppression 48
Faultrectification61
Functional principle 10
G
Grounding 28
36535-EN-140209
H
HART resistor 53
L
Linearisation curve 50
86
VEGAPULS 68 • 4 … 20 mA/HART two-wire
36535-EN-140209
Notes
VEGAPULS 68 • 4 … 20 mA/HART two-wire
87
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information
available at the time of printing.
Subject to change without prior notice
© VEGA Grieshaber KG, Schiltach/Germany 2014
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
Phone +49 7836 50-0
Fax +49 7836 50-201
E-mail: [email protected]
www.vega.com
36535-EN-140209
Printing date: