Vega VEGAVIB 62 User manual

Operating Instructions
VEGAVIB 62
-NAMUR
Document ID:
31216
Vibration

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
2.4General safety instructions . . . . . . . . . . . . . . . . . . . . 5
2.5Safety label on the instrument . . . . . . . . . . . . . . . . . . 6
2.6CE conformity ............................. 6
2.7SIL conformity ............................. 6
2.8Safety instructions for Ex areas . . . . . . . . . . . . . . . . . 6
2.9Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 8
3.3Operation................................. 9
3.4Storage and transport ....................... 9
4Mounting
4.1General instructions ......................... 10
4.2Mounting instructions ........................ 11
5Connecting to power supply
5.1Preparing the connection ..................... 15
5.2Connection procedure........................ 15
5.3Wiring plan,single chamber housing . . . . . . . . . . . . . 16
5.4Wiring plan -version IP 66/IP 68,1bar . . . . . . . . . . . 18
6Set up
6.1General .................................. 19
6.2Adjustment elements ........................ 19
6.3Functional chart ............................ 20
6.4Recurring function test ....................... 21
7Maintenance and fault rectification
7.1Maintenance .............................. 24
7.2Rectify faults .............................. 24
7.3Exchanging the electronics module . . . . . . . . . . . . . . 25
7.4Instrument repair ........................... 26
8Dismounting
8.1Dismounting steps .......................... 28
8.2Disposal ................................. 28
2VEGAVIB 62 • - NAMUR
Contents
31216-EN-100805

9Supplement
9.1Technical data ............................. 29
9.2Dimensions ............................... 33
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
with the delivery.You can find them listed in chapter "Product
description".
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 corresponding documenta-
tions are:
l31086 -External housing -VEGAVIB
l30172 -Electronics module VEGAVIB series 60
l34296 -Protective cover
l30097 -Cable shortening set VEGAVIB 62
VEGAVIB 62 • - NAMUR 3
Contents
31216-EN-100805

1About this document
1.1Function
This operating instructions manual provides all the information you
need for mounting,connection and setup as well as important
instructions for maintenance and fault rectification.Please read this
information before putting the instrument into operation and keep this
manual accessible in the immediate vicinity of the device.
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 • - NAMUR
1About this document
31216-EN-100805

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 plant
operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2Appropriate use
The VEGAVIB 62 is a sensor for level detection.
You can find detailed information on the application range in chapter
"Product description".
Operational reliability is ensured only if the instrument is properly used
according to the specifications 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.Arbitrary
conversions or modifications are explicitly forbidden.
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
This 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 as well as all prevailing safety
regulations and accident prevention rules.
The instrument must only be operated in a technically flawless and
reliable condition.The operator is responsible for 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.
VEGAVIB 62 • - NAMUR 5
2For your safety
31216-EN-100805

2.5Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6CE conformity
This device fulfills the legal requirements of the applicable EC
guidelines.By attaching the CE mark,VEGA provides a confirmation
of successful testing.You can find the CE conformity declaration in the
download area of www.vega.com.
2.7SIL conformity
VEGAVIB 62 meets the requirements of functional safety according to
IEC 61508.Further information is available in the Safety Manual
"VEGAVIB series 60".
2.8Safety instructions for Ex areas
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.
2.9Environmental 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 management system is certified according to DIN
EN ISO 14001.
Please help us fulfil this obligation by observing the environmental
instructions in this manual:
lChapter "Packaging,transport and storage"
lChapter "Disposal"
6VEGAVIB 62 • - NAMUR
2For your safety
31216-EN-100805

3Product description
3.1Structure
The scope of delivery encompasses:
lPoint level sensor VEGAVIB 62
lDocumentation
-this operating instructions manual
-Safety Manual "Functional safety (SIL)according to IEC 61508
or IEC 61511"(optional)
-Supplementary instructions manual "Plug connector for level
sensors"(optional)
-Ex-specific"Safety instructions"(with Ex versions)
-if necessary,further certificates
The 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
The type label contains the most important data for identification and
use of the instrument:
lArticle number
lSerial number
lTechnical data
Scope of delivery
Constituent parts
Type label
VEGAVIB 62 • - NAMUR 7
3Product description
31216-EN-100805

lArticle numbers,documentation
lSIL identification (with SIL rating ex works)
With the serial number,you can access the delivery data of the
instrument via www.vega.com,"VEGA Tools"and "serial number
search".In addition to the type label outside,you can also find the
serial number on the inside of the instrument.
3.2Principle of operation
VEGAVIB 62 is a point level sensor with vibrating rod for level
detection.
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 also works when subjected to strong external vibrations or changing
products.
Solid detection in water
IfVEGAVIB 62 was ordered for solid detection in water,the vibrating
rod is calibrated to the density of water.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 module of VEGAVIB 62 monitors continuously the
following criteria:
lCorrect vibrating frequency
lLine break to the piezo drive
If one of these faults is detected,the electronics signals this via a
defined current to the signal conditioning instrument.The connection
cable to the vibrating element is also monitored.
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 electronics module
and converted into a switching command.
VEGAVIB 62 with NAMUR electronics can be connected to different
NAMUR amplifiers depending on your requirements.The specifica-
tions for NAMUR amplifiers are available in the "Technical data".
The data for power supply are specified in chapter "Technical data".
Application area
Functional principle
Voltage supply
8VEGAVIB 62 • - NAMUR
3Product description
31216-EN-100805

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 (yellow)
lPotentiometer for adaptation to the product density
lMode switch to select the switching condition (reverse character-
istics)
lSimulation key
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 environment-
friendly,recyclable cardboard.In addition,the sensor is provided with
a protective cover of paperboard.For special versions PE foam or PE
foil is also used.Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out under 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
concealed 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:
lNot in the open
lDry and dust free
lNot exposed to corrosive media
lProtected against solar radiation
lAvoiding mechanical shock and vibration
lStorage and transport temperature see chapter "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
VEGAVIB 62 • - NAMUR 9
3Product description
31216-EN-100805

4Mounting
4.1General instructions
Make sure that all parts of the instrument exposed to the process,in
particular the sensor element,process seal and process fitting,are
suitable for the existing process conditions.These include above all
the process pressure,process temperature as well as the chemical
properties of the medium.
You can find the specifications in chapter "Technical data"or on the
type label.
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 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 off.This
applies mainly to outdoor mounting as well as installation in areas
where high humidity is expected (e.g.through cleaning processes)or
on cooled or heated vessels.
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.
Suitability for the pro-
cess conditions
Switching point
Moisture
Transport
10 VEGAVIB 62 • - NAMUR
4Mounting
31216-EN-100805

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 specified in chapter "Technical data"
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.
Warning:
The housing must not be used to screw the instrument in!Applying
tightening force can damage internal parts of the housing.
Use the hexagon above the thread for screwing in.
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 in chapter "Technical data".
In silos for bulk solids,material cones can form and 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 in a way 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/6
from the vessel wall.
Pressure/Vacuum
Handling
Tensile load
Material cone
VEGAVIB 62 • - NAMUR 11
4Mounting
31216-EN-100805

d d
d
10
d
10
Fig.3:Filling and emptying centred
12 VEGAVIB 62 • - NAMUR
4Mounting
31216-EN-100805

d
d
10
1
2
3
Fig.4:Filling in the centre,emptying laterally
1VEGAVIB 62
2Discharge 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,unwanted false
measurement signals can be generated.For this reason,mount
VEGAVIB 62 at a position in the vessel where no disturbances,e.g.
from filling openings,agitators,etc., can occur.
Socket
Inflowing medium
VEGAVIB 62 • - NAMUR 13
4Mounting
31216-EN-100805

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 for protection against mechanical damage
Baffle protection against
falling rocks
14 VEGAVIB 62 • - NAMUR
4Mounting
31216-EN-100805

5Connecting to power supply
5.1Preparing the connection
Always keep in mind 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 operating voltage according to the following diagrams.
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 instrument 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 specified 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.Acable outer diameter of 5…9mm
(0.2…0.35 in)ensures the seal effect of the cable gland.If you are
using cable with a different diameter or cross-section,exchange the
seal or use a suitable cable gland.
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:
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)of insulation from the ends of the individual wires
4Insert the cable into the sensor through the cable entry
Note safety instructions
Take note of sa-
fety instructions
for Ex applica-
tions
Voltage supply
Connection cable
Connection cab-
le for Ex appli-
cations
VEGAVIB 62 • - NAMUR 15
5Connecting to power supply
31216-EN-100805

5Lift the opening levers of the terminals with a screwdriver (see
following illustration)
Fig.7:Connection steps 5and 6
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 on
The electrical connection is finished.
5.3Wiring plan,single chamber housing
The following illustrations apply to the non-Ex as well as to the EEx-d
version.
16 VEGAVIB 62 • - NAMUR
5Connecting to power supply
31216-EN-100805

1
4
44
2 3
Fig.8:Material versions,single chamber housing
1Plastic (not with EEx d)
2Aluminium
3Stainless steel (not with EEx d)
4Filter element for pressure compensation or blind stopper with version IP 66/
IP 68,1bar (not with EEx d)
For connection of the amplifier according to NAMUR (IEC 60947-5-6,
EN 50227). You can find further information in the "Technical data".
Further information you will find in the "Technical data","Ex technical
data"are specified in the attached "Safety instructions manual".
1 2
+
+
-
-
Fig.9:Wiring plan,single chamber housing
External simulation key
In addition to the test key on the electronics module,you can connect
an external key to start the test procedure.Connect the key according
to the following wiring plan.In shipping condition,terminals 3and 4are
bridged.
For additional information see "Recurring function test".
Housing overview
Wiring plan
VEGAVIB 62 • - NAMUR 17
5Connecting to power supply
31216-EN-100805

+-
+-
1 2 3 4
3
2
1
Fig.10:Wiring plan -External simulation key
1NAMUR amplifier
2Bridge
3External simulation key
5.4Wiring plan -version IP 66/IP 68,1bar
+
-
1
2
Fig.11:Wire assignment connection cable
1brown (+)and blue (-) to power supply or to the processing system
2Shielding
Wire assignment con-
nection cable
18 VEGAVIB 62 • - NAMUR
5Connecting to power supply
31216-EN-100805

6Set up
6.1General
The figures in brackets refer to the following illustrations.
On the electronics module you will find the following indicating and
adjustment elements:
lpotentiometer for adaptation to the product density (1)
lDIL switch for mode adjustment -min./max. (2)
lSimulation key (3)
lSignal lamp (6)
6.2Adjustment elements
4
5
6
3
1
2
Simulation
NAMUR IEC 60947-5-6
VB60N
Fig.12:Electronics and connection compartment -NAMUR output
1Potentiometer for switching point adaptation
2DIL switch for characteristics reversal
3Simulation key
4Ground terminal
5Connection terminals
6Control lamp
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,
Function/Configuration
Electronics and connec-
tion compartment
Switching point adapta-
tion (1)
VEGAVIB 62 • - NAMUR 19
6Set up
31216-EN-100805

VEGAVIB 62 will be more sensitive and light solids can be detected
more reliably.
For instruments detecting solids in water,these settings are not
applicable.The switching point adaptation is preset and must not be
changed.
The characteristics reversal can be carried out with the DIL switch.
You can choose between falling characteristic curve (switch position
max.) and rising characteristic curve (switch position min.). This allows
you to output the desired current.
Modes
lmin. - rising characteristic curve (High current when immersed)
lmax. - falling characteristics (Low current when immersed)
The NAMUR output can be switched over to falling or rising
characteristics (see also "Function chart").
The simulation key is located in a recess on the upper side of the
electronics module.Push the simulation key with a suitable object
(screwdriver,pen,etc.).
When the key is pushed,a line break between sensor and processing
unit is simulated.The signal lamp on the sensor extinguishes.The
measuring system must signal a fault and take on a safe condition
when the key is pushed.
Keep in mind that downstream connected instruments will be activated
during operation.This allows you to check the correct function of the
measuring system.
Control lamp (LED)for indication of the switching condition
lyellow =High current ≥2.4mA
ldark =Low current ≤1mA
lyellow (flashing)=Failure ≤1mA
6.3Functional chart
VEGAVIB 62 level switch
The following chart provides an overview of the switching conditions
depending on the adjusted mode and level.
Note:
The mode setting on the NAMUR amplifier must be selected in such a
way that the switching output takes on safe condition in case of failure
(I≤1mA).
Characteristics reversal
(2)
Simulation key (3)
Signal lamp (6)
20 VEGAVIB 62 • - NAMUR
6Set up
31216-EN-100805