Vega vegacap 62 User manual

Operating Instructions
Capacitive rod electrode for level
detection
VEGACAP 62
- two-wire
Document ID: 30007

2
Contents
VEGACAP 62 • - two-wire
30007-EN-160331
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 Safety label on the instrument .......................................................................................... 6
2.6 CE conformity................................................................................................................... 6
2.7 Safety instructions for Ex areas ........................................................................................ 6
2.8 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Operation ......................................................................................................................... 9
3.4 Packaging, transport and storage..................................................................................... 9
3.5 Accessories and replacement parts ............................................................................... 10
4 Mounting
4.1 General instructions ....................................................................................................... 11
4.2 Mounting instructions ..................................................................................................... 12
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 15
5.2 Connection procedure.................................................................................................... 15
5.3 Wiring plan, single chamber housing.............................................................................. 16
5.4 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 18
5.5 Warm-up reaction........................................................................................................... 18
6 Setup
6.1 General information........................................................................................................ 19
6.2 Adjustment elements...................................................................................................... 19
7 Maintenanceandfaultrectication
7.1 Maintenance .................................................................................................................. 21
7.2 Rectify faults................................................................................................................... 21
7.3 Exchange of the electronics module............................................................................... 23
7.4 Shortening of the probe.................................................................................................. 25
7.5 How to proceed if a repair is necessary.......................................................................... 25
8 Dismount
8.1 Dismounting steps.......................................................................................................... 27
8.2 Disposal ......................................................................................................................... 27
9 Supplement
9.1 Technical data ................................................................................................................ 28
9.2 Dimensions .................................................................................................................... 32
9.3 Industrial property rights................................................................................................. 35
9.4 Trademark ...................................................................................................................... 35

3
Contents
VEGACAP 62 • - two-wire
30007-EN-160331
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
withthedelivery.Youcanndthemlistedinchapter"Product descrip-
tion".
Instructions manuals for accessories and replacement parts
Tip:
ToensurereliablesetupandoperationofyourVEGACAP62,weoer
accessories and replacement parts. The corresponding documenta-
tions are:
• 30174 - Electronics module VEGACAP series 60
• 34296 - Protective cover
• 31088 - Flanges according to DIN-EN-ASME-JIS-GOST
Editing status: 2016-02-19

4
1 About this document
VEGACAP 62 • - two-wire
30007-EN-160331
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tionsformaintenanceandfaultrectication.Pleasereadthisinforma-
tion before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbols used
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant applications.
• List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
VEGACAP 62 • - two-wire
30007-EN-160331
2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual must
be carried out only by trained specialist personnel authorised by the
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
The VEGACAP 62 is a sensor for point level detection.
Youcannddetailedinformationabouttheareaofapplicationin
chapter"Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specichazards,e.g.vesseloverllordamagetosystem
components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsible
for the trouble-free operation of the instrument.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.
The safety approval markings and safety tips on the device must also
be observed.

6
2 For your safety
VEGACAP 62 • - two-wire
30007-EN-160331
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 CE conformity
ThisdevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByattachingtheCEmark,VEGAprovidesaconrmationof
successfultesting.YoucanndtheCEconformitydeclarationinthe
downloadareaof"www.vega.com".
2.7 Safety instructions for Ex areas
PleasenotetheEx-specicsafetyinformationforinstallationandop-
eration in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
2.8 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental pro-
tection.Theenvironmentmanagementsystemiscertiedaccording
to DIN EN ISO 14001.
Pleasehelpusfulllthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter"Packaging, transport and storage"
• Chapter"Disposal"

7
3 Product description
VEGACAP 62 • - two-wire
30007-EN-160331
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• VEGACAP 62 point level switch
• Documentation
– This operating instructions manual
– SafetyManual"Functional safety (SIL)"(optional)
– Supplementaryinstructionsmanual"Plug connector for level
sensors"(optional)
– Ex-specic"Safety instructions"(withExversions)
– Ifnecessary,furthercerticates
The VEGACAP 62 consists of the components:
• Processttingwithprobe
• Housing with electronics
• Housing cover, optionally available with display and adjustment
module
1
2
3
Fig. 1: VEGACAP 62 - rod version with plastic housing
1 Housing cover with integrated display and adjustment module (optional)
2 Housing with electronics
3 Processtting
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
Scope of delivery
Constituent parts
T
ype label

8
3 Product description
VEGACAP 62 • - two-wire
30007-EN-160331
2
1
11
10
13
12
14
15
9
3
6
4
5
7
8
Fig. 2: Layout of the type label (example)
1 Instrument type
2 Product code
3 Approvals
4 Process and ambient temperature, process pressure
5 Power supply and signal output, electronics
6 Protection rating
7 Probe length
8 Order number
9 Serial number of the instrument
10 Material, wetted parts
11 Symbol of the device protection class
12 Reminder to observe the instrument documentation
13 ID numbers, instrument documentation
14 NotiedauthorityforCEmarking
15 Approval directives
With the serial number, you can access the delivery data of the instru-
ment via www.vega.com,"VEGA Tools"and"serial number search".
Youcanndtheserialnumberontheinsideoftheinstrumentaswell
as on the type label on the outside.
3.2 Principle of operation
VEGACAP 62 is a point level sensor for use in all areas of industry.
The partly insulated probe is suitable for the measurement of bulk
solids and liquids.
Theprovenmechanicalconstructionoershighfunctionalsafety.
Probe, measured product and vessel wall form an electrical capacitor.
Thecapacitanceisinuencedbythreemainfactors.
Area of application
Functional principle

9
3 Product description
VEGACAP 62 • - two-wire
30007-EN-160331
1
2
3
Fig. 3: Functional principle - Plate capacitor
1 Distance between the electrode surfaces
2 Size of the electrode surfaces
3 Type of dielectric between the electrodes
The probe and the vessel wall are the capacitor plates. The measured
product is the dielectric. Due to the higher dielectric constant of the
product compared to air, the capacitance increases as the probe is
gradually covered.
The capacitance change is converted by the electronics module into
a switching command.
Depending on your requirements, VEGACAP 62 with two-wire elec-
tronicscanbeconnectedtodierentsignalconditioninginstruments.
Compatible signal conditioning instruments are listed in chapter
"Technical data".
Thedataforpowersupplyarespeciedinchapter"Technical data".
3.3 Operation
The probe can be adapted to the dielectric constant of the product
directly on the electronics module.
A switching command can be triggered when the probe is covered or
laid bare.
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
• Control lamp for indication of the device status.
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Voltage supply
Packaging

10
3 Product description
VEGACAP 62 • - two-wire
30007-EN-160331
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storageandtransporttemperatureseechapter"Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
3.5 Accessories and replacement parts
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
Youwillndadditionalinformationinthesupplementaryinstructions
manual"Protective cover"(Document-ID34296).
Screwedangesareavailableindierentversionsaccordingtothe
following standards: DIN 2501, EN 1092-1, BS 10, ASME B 16.5,
JIS B 2210-1984, GOST 12821-80.
Youcanndadditionalinformationinthesupplementaryinstructions
manual"Flanges according to DIN-EN-ASME-JIS".
Transport
Transport inspection
Storage
Storage and transport
temperature
Protective cap
Flanges

11
4 Mounting
VEGACAP 62 • - two-wire
30007-EN-160331
4 Mounting
4.1 General instructions
Make sure that all parts of the instrument coming in direct contact
with the process, especially the sensor element, process seal and
processtting,aresuitablefortheexistingprocessconditions,such
as process pressure, process temperature as well as the chemical
properties of the medium.
Youcanndthespecicationsinchapter"Technical data"andonthe
nameplate.
In general the level switch can be mounted in any position.The instru-
ment must be mounted in such a way that the probe is at the height of
the requested switching point.
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Ground the probe before welding directly on the rod or cable.
With threaded versions, the housing must not be used to screw in the
instrument. Applying tightening forces on the housing can damage its
internal parts.
Use the hexagon for screwing in.
Usetherecommendedcables(seechapter"Connecting to power
supply")andtightenthecablegland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cableentry.Rainandcondensationwatercanthusdraino.Thisap-
plies mainly to outdoor mounting as well as installation in areas where
highhumidityisexpected(e.g.throughcleaningprocesses)oron
cooled or heated vessels.
Fig. 4: Measures against moisture ingress
DonotholdVEGACAP62ontheprobe.Especiallywithheavyange
versions or long rod versions, the sensor can be damaged simply by
the weight of the instrument.
Suitability for the process
conditions
Switching point
Welding work
Handling
Moisture
Transport

12
4 Mounting
VEGACAP 62 • - two-wire
30007-EN-160331
Theprocessttingmustbesealedifthereisgaugeorlowpressurein
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
Themax.permissiblepressureisspeciedinchapter"Technical
data"oronthetypelabelofthesensor.
Metal vessel
Make sure that the mechanical connection of the probe to the vessel
iselectricallyconductivetoensuresucientgrounding.
Use conductive seals, such as those made of copper or lead, etc.
Insulatingmeasures,suchascoveringthethreadwithTeontape,
can interrupt the necessary electrical connection with metal vessels.
For this reason, ground the probe on the vessel or use a conductive
seal material.
Non-conductive vessels
In non-conductive vessels, e.g. plastic tanks, the second pole of the
capacitor must be provided separately, e.g. in the form of a concentric
tube.
Ifcondensateformsonthevesseltop,therun-oliquidcancause
bridging and hence faulty switchings.
For this reason, use a screening tube or a longer insulation. The
lengthdependsontheamountofcondensateandthedrain-obe-
haviour of the product.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
4.2 Mounting instructions
Duetotheeectsofagitators,equipmentvibrationorsimilar,thelevel
switch can be subjected to strong lateral forces. For this reason, do
not use an overly long electrode for VEGACAP 62, but check if you
canmountashortlevelswitchonthesideofthevesselinhorizontal
position.
Extreme vibration caused by the system, e.g. due to agitators or
turbulenceinthevesselfromuidisation,cancausetheprobeof
VEGACAP 62 to vibrate in resonance. If a longer rod version is neces-
sary, you can secure the probe by fastening a suitable isolated brace
or guy directly above the end of the rod.
Pressure/Vacuum
Vessel material
Condensation
Cable entries - NPT
thread
Cable glands
Agitatorsanduidization

13
4 Mounting
VEGACAP 62 • - two-wire
30007-EN-160331
Iftheinstrumentismountedinthellingstream,unwantedfalse
measurement signals can be generated. For this reason, mount the
instrument at a position in the vessel where no disturbances, e.g. from
llingopenings,agitators,etc.,canoccur.
This applies particularly to instrument versions with a longer probe.
Fig.5:Inowingmedium
The probe should protrude into the vessel to avoid buildup. For that
reason,avoidusingmountingbossesforangesandscrewedttings.
This applies particularly to use with adhesive products.
In silos with bulk solids, material cones can form which change the
switching point. Please keep this in mind when installing the sensor
in the vessel. We recommend selecting an installation location where
the probe detects the average value of the material cone.
The probe must be mounted in a way that takes the arrangement of
thellingandemptyingaperturesintoaccount.
To compensate measurement errors caused by the material cone in
cylindrical vessels, the sensor must be mounted at a distance of d/6
from the vessel wall.
Inowingmedium
Socket
Material cone

14
4 Mounting
VEGACAP 62 • - two-wire
30007-EN-160331
dd
d
6
d
6
Fig. 6: Filling and emptying centred
d
d
6
1
2
3
Fig. 7: Filling in the centre, emptying laterally
1 VEGACAP 62
2 Discharge opening
3 Filling opening

15
5 Connecting to power supply
VEGACAP 62 • - two-wire
30007-EN-160331
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
• The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
• Alwaysswitchopowersupply,beforeconnectingordisconnect-
ing the instrument.
Inhazardousareasyoumusttakenoteoftherespectiveregulations,
conformityandtypeapprovalcerticatesofthesensorsandpower
supply units.
Connect the voltage supply according to the following diagrams. Take
note of the general installation regulations. As a rule, connect VE-
GACAP62tovesselground(PA),orincaseofplasticvessels,tothe
next ground potential. On the side of the instrument housing there is
a ground terminal between the cable entries. This connection serves
todrainoelectrostaticcharges.InExapplications,theinstallation
regulationsforhazardousareasmustbegivenpriority.
Thedataforpowersupplyarespeciedinchapter"Technical data".
The instrument is connected with standard two-wire cable without
screen. If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable should
be used.
Use cable with round cross-section. A cable outer diameter of
5…9mm(0.2…0.35in)ensuresthesealeectofthecablegland.
Ifyouareusingcablewithadierentdiameterorcross-section,
exchange the seal or use a suitable cable gland.
Inhazardousareas,useonlyapprovedcableconnectionsforVE-
GACAP 62.
Take note of the corresponding installation regulations for Ex applica-
tions.
5.2 Connection procedure
With Ex instruments, the housing cover may only be opened if there is
no explosive atmosphere present.
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
3. 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
4. Insert the cable into the sensor through the cable entry
Note safety instructions
Take note of safety
instructions for Ex
applications
Voltage supply
Connection cable
Connection cable
for Ex applications

16
5 Connecting to power supply
VEGACAP 62 • - two-wire
30007-EN-160331
5. Lifttheopeningleversoftheterminalswithascrewdriver(see
followingillustration)
Fig. 8: Connection steps 5 and 6
6. Insert the wire ends into the open terminals according to the wir-
ing plan
7. Press down the opening levers of the terminals, you will hear the
terminal spring closing
8. Check the hold of the wires in the terminals by lightly pulling on
them
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. If necessary, carry out a fresh adjustment
11. Screw the housing lid back on
Theelectricalconnectionisnished.
5.3 Wiring plan, single chamber housing
1
4
44
2 3
Fig. 9: Material versions, single chamber housing
1 Plastic (not with dust-Ex)
2 Aluminium
3 Stainless steel
4 Filter element for pressure compensation or blind plug with version IP 66/
IP 68, 1 bar
Housing overview

17
5 Connecting to power supply
VEGACAP 62 • - two-wire
30007-EN-160331
4
1
2
3
Fig. 10: Electronics and terminal compartment
1 DIL switch for measuring range selection
2 Ground terminal
3 Connection terminals
4 Control lamp
For connection to a signal conditioning instrument. The sensor is
powered by the connected signal conditioning instrument. Further in-
formationisavailableinchapter"Technical data","Ex-technical data"
areavailableinthe"Safety information".
The wiring example is applicable for all suitable signal conditioning
instruments.
Take note of the operating instructions manual of the signal condition-
ing instrument. Suitable signal conditioning instruments are listed in
chapter"Technical data".
1
Fig. 11: Wiring plan
1 Voltage supply
Electronics and terminal
compartment
Wiring plan

18
5 Connecting to power supply
VEGACAP 62 • - two-wire
30007-EN-160331
5.4 Wiring plan - version IP 66/IP 68, 1 bar
1
2
Fig. 12: Wire assignment, connection cable
1 brown (+) and blue (-) to power supply or to the processing system
2 Shielding
5.5 Warm-up reaction
After connecting to voltage supply or after a voltage recurrence, the
instrument passes a certain switch on routine.
By lowering the current value when switching on, the instrument can
outputbrieyafaultmessage.
10
I/mA
20,5
< 2,3
1,5 3 4,5 t/s
1
Fig. 13: Warm-up reaction
1 Measured value
Wire assignment, con-
nection cable

19
6 Setup
VEGACAP 62 • - two-wire
30007-EN-160331
6 Setup
6.1 General information
Theguresinbracketsrefertothefollowingillustrations.
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
• DIL switch for measuring range selection
• Control lamp
Note:
As a rule, always set the mode with the mode switch of the signal
conditioning instrument before starting setup VEGACAP 62. The
switching output will change if you set the mode switch afterwards.
This could possibly trigger other connected instruments or devices.
6.2 Adjustment elements
4
1
2
3
Fig. 14: Electronics module - Two-wire output
1 DIL switch for measuring range selection (with compensation button)
2 Ground terminal
3 Connection terminals
4 Control lamp
Afailurecanbedisplayedwithclosedhousing(onlyplastichousing),
seeoperatinginstructionsmanualofthe"Signal conditioning instru-
ment".
Note:
Screw the housing cover tightly up to the thread stop so that the
inspectionglassisabovethecontrollamp(LED).
ToadjustVEGACAP62,rstofallremovethehousingcover.
Function/Conguration

20
6 Setup
VEGACAP 62 • - two-wire
30007-EN-160331
With the potentiometer on the signal conditioning instrument and
themeasuringrangeselectionswitch(1)onVEGACAP62youcan
change the sensitivity of the probe to the electrical properties of the
product and the conditions in the vessel. This is necessary so that the
level switch can also reliably detect products e.g. with very low or very
highdielectricgure.
range 1: 0 … 20 pF
Range 2: 0 … 85 pF
Range 3: 0 … 450 pF
Control lamp for indication of the device status.
• green = instrument functions
• red(ashing)=failure
Seeoperatinginstructionsmanualofthe"Signal conditioning instru-
ment".
The adjustment of the switching point is only possible in installed
condition.
The detailed adjustment of VEGACAP 62 is described in the operat-
inginstructionsmanualofthe"Signal conditioning instrument".
Measuring range selec-
tion switch (1)
Signal lamp (4)
Switching point adjust-
ment