Vega VEGAVIB 62 User manual

Operating Instructions
VEGAVIB 62
-double relay (DPDT)

Contents
1About this document
1.1Function ............................. 4
1.2Target group .......................... 4
1.3Symbolism used ....................... 4
2For your safety
2.1Authorised personnel .................... 5
2.2Appropriate use........................ 5
2.3Warning about misuse ................... 5
2.4CE conformity ......................... 5
2.5SIL conformity ......................... 6
2.6Safety instructions for Ex areas ............ 6
2.7Environmental instructions ................ 6
3Product description
3.1Configuration.......................... 7
3.2Principle of operation.................... 7
3.3Operation ............................ 9
3.4Storage and transport ................... 9
4Mounting
4.1General instructions..................... 10
4.2Mounting instructions.................... 11
5Connecting to voltage supply
5.1Preparing the connection ................. 14
5.2Connection procedure ................... 14
5.3Wiring plan,single chamber housing......... 15
6Setup
6.1In general ............................ 18
6.2Adjustment elements .................... 18
6.3Function chart ......................... 19
7Maintenance and fault rectification
7.1Maintenance .......................... 21
7.2Remove interferences ................... 21
7.3Exchange of the electronics module ......... 22
7.4Instrument repair ....................... 24
8Dismounting
8.1Dismounting procedure .................. 25
8.2Disposal ............................. 25
2VEGAVIB 62 --double relay (DPDT)
Contents
29271-EN-070116

9Supplement
9.1Technical data......................... 26
9.2Dimensions ........................... 29
9.3Industrial property rights.................. 32
9.4Trademark ........................... 32
Supplementary operating instructions manuals
Information:
VEGAVIB 62 is available in different versions.Depending on
the selected version,supplementary operating instructions
manuals may also come with the shipment.The supplemen-
tary operating instructions manuals are listed in section
"Product description.
Operating instructions manuals for accessories and
replacement parts
Tip:
To ensure reliable setup and operation of your VEGAVIB 62,
we offer accessories and replacement parts.The associated
documents are:
lOperating instructions manual "Remote housing -VEGA-
VIB"
lOperating instructions manual "Oscillator VEGAVIB series
60"
lOperating instructions manual "Cable shortening set
VEGAVIB 62,66"
VEGAVIB 62 --double relay (DPDT)3
Contents
29271-EN-070116

1About this document
1.1Function
This operating instructions manual has all the information you
need for quick setup and safe operation.Please read this
manual before you start setup.
1.2Target group
This operating instructions manual is directed to trained,
qualified personnel.The contents of this manual should be
made available to these personnel and put into practice by
them.
1.3Symbolism 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.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow indicates a single action.
1Sequence
Numbers set in front indicate successive steps in a procedure.
4VEGAVIB 62 --double relay (DPDT)
About this document
29271-EN-070116

2For your safety
2.1Authorised personnel
All operations described in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the operator.For safety and warranty reasons,
any internal work on the instruments must be carried out only
by personnel authorised by the manufacturer.
2.2Appropriate use
VEGAVIB 62 is a sensor for level detection.
Detailed information on the application range of VEGAVIB 62
is available in chapter "Product description".
2.3Warning about misuse
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards,e.g.vessel overfill or damage to
system components through incorrect mounting or adjustment.
2.4General safety instructions
VEGAVIB 62 is a high-tech instrument requiring the strict
observance of standard regulations and guidelines.The user
must take note of the safety instructions in this operating
instructions manual,the country-specific installation standards
(e.g.the VDE regulations in Germany)as well as all prevailing
safety regulations and accident prevention rules.
2.5CE conformity
VEGAVIB 62 is in CE conformity with EMC (89/336/EWG),
fulfils NAMUR recommendation NE 21 and is in CE conformity
with LVD (73/23/EWG).
Conformity has been judged according to the following
standards:
lEMC:
-Emission EN 61326:1997 (class B)
-Susceptibility EN 61326:1997/A1:1998
lLVD:EN 61010-1:2001
VEGAVIB 62 --double relay (DPDT)5
For your safety
29271-EN-070116

2.6SIL conformity
VEGAVIB 62 meets the requirements to the functional safety
according to IEC 61508.Further information is available in the
Safety Manual "VEGAVIB series 60".
2.7Safety instructions for Exareas
Please note the Ex-specific safety information for installation
and operation in Ex areas.These safety instructions are part of
the operating instructions manual and come with the Ex-
approved instruments.
2.8Environmental 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.The environment man-
agement system is certified according to DIN EN ISO 14001.
Please help us fulfil this obligation by observing the environ-
mental instructions in this manual:
lChapter "Storage and transport"
lChapter "Disposal"
6VEGAVIB 62 --double relay (DPDT)
For your safety
29271-EN-070116

3Product description
3.1Configuration
The scope of delivery encompasses:
lVEGAVIB 62 level sensor
lDocumentation
-this operating instructions manual
-Safety Manual "Functional safety according to
IEC 61508 or IEC 61511 (SIL)"
-Supplementary instructions manual "Plug connector for
level sensors"(optional)
-Ex-specific"Safety instructions"(with Ex-versions)
-if necessary,further certificates
VEGAVIB 62 consists of the following components:
lHousing cover
lHousing with electronics
lprocess fitting with vibrating rod
1
2
3
Fig.1:VEGAVIB 62 with plastic housing
1Housing cover
2Housing with electronics
3Process fitting
3.2Principle of operation
VEGAVIB 62 is a level sensor with vibrating rod for level
detection.
Scope of delivery
Components
Area of application
VEGAVIB 62 --double relay (DPDT)7
Product description
29271-EN-070116

It is designed for industrial use in all areas of process
technology and is preferably used for bulk solids.
Typical applications are overfill and dry run protection.Thanks
to its simple and robust measuring system,VEGAVIB 62 is
virtually unaffected by the chemical and physical properties of
the bulk solid.
It functions even when exposed to strong external vibration or
changing products.
Solid detection in water
IfVEGAVIB 62 was ordered for solid detection in water,the
vibrating rod is to the density of water.In air or if covered by
water (density:1g/cm³/0.036 lbs/in)VEGAVIB 62 signals
uncovered.Only if the vibrating element is also covered with
solids (e.g.sand,sludge,gravel etc.) will the sensor signal
covered.
Fault monitoring
The electronics of VEGAVIB 62 continuously monitors the
following criteria:
lCorrect vibrating frequency
lLine break to the piezo drive
If one of the stated malfunctions is detected or in case of
power failure,the electronics takes on a defined switching
condition,i.e.the relay deenergises (safe condition).
The vibrating rod is piezoelectrically energised and vibrates at
its mechanical resonance frequency of approx.360 Hz.When
the vibrating rod is submerged in the product,the vibration
amplitude changes.This change is detected by the integrated
oscillator and converted into a switching command.
VEGAVIB 62 is a compact instrument,i.e.it can be operated
without external evaluation system.The integrated electronics
evaluates the level signal and outputs a switching signal.With
this switching signal,a connected device can be operated
directly (e.g.a warning system,aPLC,a pump etc.).
The data for power supply are stated in chapter "Technical
data"in the "Supplement".
Functional principle
Supply
8VEGAVIB 62 --double relay (DPDT)
Product description
29271-EN-070116

3.3Operation
With the factory setting,products with a density of >0.05 g/cm³
(0.002 lbs/in³)can be measured.It is possible to adapt the
instrument for products with lower density >0.02 g/cm³
(0.0007 lbs/in³).
On the electronics module you will find the following indicating
and adjustment elements:
lsignal lamp for indication of the switching condition (green/
red)
lpotentiometer for adaptation to the product density
lMode switch for selecting the switching condition (min./
max.)
3.4Storage and transport
Your instrument was protected by packaging during transport.
Its capacity to handle normal loads during transport is assured
by a test according to DIN EN 24180.
The packaging of standard instruments consists of environ-
ment-friendly,recyclable cardboard.In addition,the sensor is
provided with a protective cover of cardboard.For special
versions PE foam or PE foil is also used.Dispose of the
packaging material via specialised recycling companies.
lStorage and transport temperature see "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Packaging
Storage and transport tem-
perature
VEGAVIB 62 --double relay (DPDT)9
Product description
29271-EN-070116

4Mounting
4.1General instructions
In general,VEGAVIB 62 must be mounted vertically.The
instrument must be mounted in such a way that the vibrating
element is at the height of the requested switching point.
Use the recommended cables (see chapter "Connecting to
power supply")and tighten the cable gland.
You can give your VEGAVIB 62 additional protection against
moisture penetration by leading the connection cable down-
ward in front of the cable entry.Rain and condensation water
can thus drain off.This applies mainly to mounting outdoors,in
areas where moisture is expected (e.g.by cleaning processes)
or on cooled or heated vessels.
Fig.2:Measures against moisture penetration
Do not hold VEGAVIB 62 on the vibrating element.Especially
with flange and tube versions,the sensor can be damaged by
the weight of the instrument.
Remove the protective cover just before mounting.
The process fitting 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 stated in chapter "Technical
data"in the "Supplement"or on the type label of the sensor.
The vibrating level switch is a measuring instrument and must
be treated accordingly.Bending the vibrating element will
destroy the instrument.
Switching point
Moisture
Transport
Pressure/Vacuum
Handling
10 VEGAVIB 62 --double relay (DPDT)
Mounting
29271-EN-070116

Warning:
The housing must not be used to screw the instrument in!
Applying tightening force on the housing can damage its
rotational mechanical parts.
To screw in,use the hexagon above the thread.
4.2Mounting instructions
Make sure that the max.permissible tensile load of the
suspension cable is not exceeded.The danger of this
happening exists particularly with very heavy solids and large
meas.lengths.The max.permissible load is stated under
"Technical data"in the "Supplement".
Material cones can form in solids silos which can change the
switching point.Please keep this in mind when installing the
sensor in the vessel.We recommend selecting an installation
location where the vibrating rod detects an average value of
the material cone.
The vibrating rod must be mounted at a location that takes the
arrangement of the filling 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/6from the vessel wall.
dd
d
10
d
10
Fig.3:Filling and emptying centered
Tensile load
Material cone
VEGAVIB 62 --double relay (DPDT)11
Mounting
29271-EN-070116

dd
10
1
2
3
Fig.4:Filling in the center,emptying laterally
1VEGAVIB 62
2Emptying opening
3Filling opening
The vibrating element should protrude into the vessel to avoid
buildup.For that reason,avoid using mounting bosses for
flanges and screwed fittings.This applies particularly to use
with adhesive products.
IfVEGAVIB 62 is mounted in the filling stream,measurement
errors can result.Mount VEGAVIB 62 at a location in the
vessel where no disturbing influence from e.g.filling openings,
agitators,etc.can occur.
Socket
Inflowing medium
12 VEGAVIB 62 --double relay (DPDT)
Mounting
29271-EN-070116

Fig.5:Inflowing medium
In applications such as grit chambers or settling basins for
coarse sediments,the vibrating element must be protected
against damage with a suitable baffle.
This baffle must be manufactured by you.
> 125 mm
(4 59/64")
Fig.6:Baffle to protect against damages
Baffle protection against fall-
ing rocks
VEGAVIB 62 --double relay (DPDT)13
Mounting
29271-EN-070116

5Connecting to voltage supply
5.1Preparing the connection
Generally note the following safety instructions:
lConnect only in the complete absence of line voltage
In hazardous areas you should take note of the appropriate
regulations,conformity and type approval certificates of the
sensors and power supply units.
Connect the power supply according to the following diagrams.
Oscillator VB60Ris designed in protection class 1.To maintain
this protection class,it is absolutely necessary that the ground
conductor be connected to the internal ground terminal.Take
note of the general installation regulations.As a rule,connect
VEGAVIB 62 to vessel ground (PA), or in case of plastic
vessels,to the next ground potential.On the side of the
housing there is a ground terminal between the cable entries.
This connection serves to drain offelectrostatic charges.InEx
applications,the installation regulations for hazardous areas
must be given priority.
The data for power supply are stated in chapter "Technical
data"in the "Supplement".
VEGAVIB 62 is connected with standard cable with round
cross-section.An outer cable diameter of 5…9mm
(0.2…0.35 in)ensures the seal effect of the cable entry.
If cable with a different diameter or wire cross section is used,
exchange the seal or use an appropriate cable connection.
In hazardous areas,only use approved cable connections for
VEGAVIB 62.
Take note of the corresponding installation regulations for Ex
applications.
5.2Connection procedure
With Ex instruments,the housing cover may only be opened if
there is no explosive atmosphere present.
Proceed as follows:
Note safety instructions
Take note of safety
instructions for Ex
applications
Select power supply
Selecting connection cable
Select connection
cable for Ex applica-
tions
14 VEGAVIB 62 --double relay (DPDT)
Connecting to voltage supply
29271-EN-070116

1Unscrew the housing cover
2Loosen compression nut of the cable entry
3Remove approx.10 cm (4in)of the cable mantle,strip
approx.1cm (0.4in)insulation from the ends of the
individual wires
4Insert the cable into the sensor through the cable entry
5Lift the opening levers of the terminals with a screwdriver
(see following illustration)
6Insert the wire ends into the open terminals according to
the wiring plan
7Press down the opening levers of the terminals,you will
hear the terminal spring closing
8Check the hold of the wires in the terminals by lightly
pulling on them
9Tighten the compression nut of the cable entry.The seal
ring must completely encircle the cable
10 If necessary,carry out a fresh adjustment
11 Screw the housing cover back on
The electrical connection is finished.
Fig.7:Connection steps 5and 6
5.3Wiring plan,single chamber housing
The following illustrations apply to the non-Ex as well as to the
EEx d version.
VEGAVIB 62 --double relay (DPDT)15
Connecting to voltage supply
29271-EN-070116

1
4
44
2 3
Fig.8:Material versions,single chamber housing
1Plastic (not with EExd)
2Aluminium
3Stainless steel (not with EExd)
4Filter element for pressure compensation (not with EExd)
3
4
5
1
2
Fig.9:Electronics and connection compartment
1Potentiometer for switching point adaptation
2DIL switch for mode adjustment
3Ground terminal
4Screwed terminals
5Control lamp
We recommend connecting VEGAVIB 62 in such a way that
the switching circuit is open when there is a level signal,line
break or failure (safe condition).
The relays are always shown in non-operative condition.
Housing overview
Electronics and connection
compartment
Wiring plan
16 VEGAVIB 62 --double relay (DPDT)
Connecting to voltage supply
29271-EN-070116

3
2 1
Fig.10:Wiring plan
1Relay output
2Relay output
3Voltage supply
VEGAVIB 62 --double relay (DPDT)17
Connecting to voltage supply
29271-EN-070116

6Setup
6.1Ingeneral
The numbers in brackets refer to the following illustrations.
On the electronics module you will find the following indicating
and adjustment elements:
lPotentiometer for switching point adaptation (1)
lDIL switch for mode adjustment -min./max.(2)
lSignal lamp (5)
Note:
As a rule,always set the mode with mode switch (2)before
starting the setup of VEGAVIB 62.The switching output will
change if you set the mode switch (2)afterwards.This could
possibly trigger other connected instruments or devices.
6.2Adjustment elements
3
4
5
1
2
Fig.11:Electronics module VB60R-Relay output
1Potentiometer for switching point adaptation
2DIL switch for mode adjustment
3Ground terminal
4Screwed terminals
5Control lamp
Function/Configuration
18 VEGAVIB 62 --double relay (DPDT)
Setup
29271-EN-070116

With the potentiometer you can adapt the switching point to the
solid.It is already preset and must only be modified in special
cases.
As a default setting,the potentiometer of VEGAVIB 62 is set to
the complete right position (>0.3g/cm³/0.011 lbs/in³). In very
light solids you have to turn the potentiometer to the complete
left position (0.02 …0.1g/cm³or 0.0007 …0.0036 lbs/in³). By
doing this,VEGAVIB 62 will be more sensitive and light solids
can be detected more reliably.
For instruments detecting solids in water,these values are not
applicable.The potentiometer is preset and must not be
changed.
With the mode adjustment (min./max.) you can change the
switching condition of the relay.You can set the required mode
according to the "Function chart"(max.-max.detection or
overfill protection,min.-min.detection or dry run protection).
We recommend connecting according to the quiescent current
principle (replay contact deenergizes when reaching the
switching point), because the relay takes on the same (safe)
condition if a failure is detected.
Control lamp for indication of the switching condition.
lgreen =relay energized
lred =relay deenergized
lred (flashing)=failure
6.3Function chart
The following chart provides an overview of the switching
conditions depending on the adjusted mode and level.
Level Switching sta-
tus
Control lamp
Mode max.
Overfill protection
53 4
(8)(6) (7)
Relay energized Green
Mode max.
Overfill protection
53 4
(8)(6) (7)
Relay deener-
gized
red
Switching point adaptation (1)
Mode adjustment (2)
Signal lamp (5)
VEGAVIB 62 --double relay (DPDT)19
Setup
29271-EN-070116

Level Switching sta-
tus
Control lamp
Mode min.
Dry run protection
53 4
(8)(6) (7)
Relay energized Green
Mode min.
Dry run protection
53 4
(8)(6) (7)
Relay deener-
gized
red
Failure of the
supply voltage
(min./max.mode)
any
53 4
(8)(6) (7)
Relay deener-
gized
Failure any
53 4
(8)(6) (7)
Relay deener-
gized
flashes red
20 VEGAVIB 62 --double relay (DPDT)
Setup
29271-EN-070116