Vega VEGABAR 14 User manual

Operating Instructions
VEGABAR 14
Document ID:
22441
Process pressure

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
2.7Measuring range -permissible process pressure . . . . 6
2.8Fulfillment of NAMUR recommendations .......... 6
2.9Safety instructions for Ex areas ................. 6
2.10 Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 7
3.3Operation................................. 8
3.4Packaging,transport and storage ............... 8
4Mounting
4.1General instructions ......................... 9
4.2Instructions for installation ..................... 9
4.3Mounting steps............................. 9
5Connecting to power supply
5.1Preparing the connection ..................... 11
5.2Connection procedure........................ 12
5.3Wiring plan................................ 15
5.4Switch-on phase............................ 16
6Set up
6.1Setup steps ............................... 17
7Maintenance and fault rectification
7.1Maintenance .............................. 18
7.2Remove interferences........................ 18
7.3Instrument repair ........................... 19
8Dismounting
8.1Dismounting steps .......................... 20
8.2Disposal ................................. 20
9Supplement
9.1Technical data ............................. 21
2VEGABAR 14
Contents
22441-EN-111006

9.2Dimensions ............................... 26
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 VEGABAR 14,we offer
accessories and replacement parts.The corresponding documenta-
tions are:
l32036 -Welded socket and seals
Editing status:2011-09-23
VEGABAR 14 3
Contents
22441-EN-111006

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.
Exapplications
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.
4VEGABAR 14
1About this document
22441-EN-111006

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
VEGABAR 14 is a pressure transmitter for measurement of gauge
pressure,absolute pressure and vacuum.
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.
VEGABAR 14 5
2For your safety
22441-EN-111006

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.
2.7Measuring range -permissible process pres-
sure
Due to the application,a measuring cell with a measuring range higher
than the permissible pressure range of the process fitting may have
been integrated.The permissible process pressure is stated with
"Process pressure"on the type label,see chapter 3.1"Configuration".
For safety reasons,this range must not be exceeded.
2.8Fulfillment of NAMUR recommendations
With respect to interference resistance and emitted interference,the
NAMUR recommendation NE 21 is fulfilled.
2.9Safety 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.
2.10 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.
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"
6VEGABAR 14
2For your safety
22441-EN-111006

3Product description
3.1Structure
The scope of delivery encompasses:
lVEGABAR 14 process pressure transmitter
ldepending on the version,with plug connector,direct cable outlet
or plug connector with connection cable
lDocumentation
-this operating instructions manual
-Ex-specific"Safety instructions"(with Ex versions)
-if necessary,further certificates
3
1
2
Fig.1:VEGABAR 14 with cable outlet
1Process fitting
2Housing with electronics
3Cable outlet
The type label contains the most important data for identification and
use of the instrument:
lArticle number
lSerial number
lTechnical data
lArticle numbers,documentation
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
VEGABAR 14 is a pressure transmitter for measurement of gauge
pressure,absolute pressure or vacuum.Measured products are
gases,vapours and liquids.
Scope of delivery
Structure
Type label
Application area
VEGABAR 14 7
3Product description
22441-EN-111006

The sensor element is the CERTEC
®
measuring cell with rugged
ceramic diaphragm.The process pressure causes a capacitance
change in the measuring cell via the ceramic diaphragm.This change
is converted into an appropriate output signal and outputted as
measured value.
Two-wire electronics 4…20 mAfor power supply and measured
value transmission over the same cable.
3.3Operation
The instrument offers no adjustment options.
3.4Packaging,transport and storage
The device 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.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 %
Functional principle
Voltage supply
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
8VEGABAR 14
3Product description
22441-EN-111006

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.
4.2Instructions for installation
VEGABAR 14 functions in any installation position.It is mounted
according to the same directives as a manometer (DIN EN 839-2).
Information:
We recommend using lock fittings,measuring instrument holders and
siphons from our line of accessories.
4.3Mounting steps
For mounting VEGABAR 14,a welded socket is required.You can find
these components in the supplementary instructions manual "Welded
socket and seals".
Use the attached seal:
lProcess fitting GV,GB and GP
-or -
Seal the thread with teflon,hemp or a similar resistant seal material:
lProcess fitting GN
àScrew VEGABAR 14 into the welded socket.Tighten the hexagon
screw on the process fitting.Wrench size,see chapter "Dimen-
sions",torque see chapter "Technical data".
Suitability for the pro-
cess conditions
Mounting position
Welding the socket
Sealing/Screwing in
VEGABAR 14 9
4Mounting
22441-EN-111006

Fig.2:Installation of VEGABAR 14
10 VEGABAR 14
4Mounting
22441-EN-111006

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
lIf voltage surges are expected,install overvoltage arresters
Tip:
We recommend VEGA overvoltage arrester ÜSB 62-36G.X.
In hazardous areas you must take note of the respective regulations,
conformity and type approval certificates of the sensors and power
supply units.
The supply voltage and the current signal are carried on the same two-
wire connection cable.
Provide a reliable separation between the supply circuit and the mains
circuits according to DIN VDE 0106 part 101.
VEGA power supply units VEGATRENN 149AEx,VEGASTAB 690,
VEGADIS 371 as well as all VEGAMETs meet this requirement.When
using one of these instruments,protection class III is ensured for
VEGABAR 14.
Keep in mind the following additional factors that influence the
operating voltage:
lOutput voltage of the power supply unit can be lower under
nominal load (with a sensor current of 20.5mAor 22 mAin case of
fault message)
lInfluence of additional instruments in the circuit (see load values 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.
Connect the cable screen on both ends to ground potential.
If potential equalisation currents are expected,the connection on the
processing side must be made via a ceramic capacitor (e.g.1nF,
1500 V). The low frequency potential equalisation currents are thus
suppressed,but the protective effect against high frequency interfer-
ence signals remains.
Note safety instructions
Take note of sa-
fety instructions
for Ex applica-
tions
Select power supply
Select connection cable
Cable screening and
grounding
VEGABAR 14 11
5Connecting to power supply
22441-EN-111006

Warning:
Within galvanic plants as well as vessels with cathodic corrosion
protection there are considerable potential differences.Considerably
equalisation currents can be caused via the cable scrren when the
screen is earthed on both ends.To avoid this,the cable screen must
only connected to ground potential on one side of the switching
cabinet in such applications.The cable screen must not be connected
to the internal ground terminal in the sensor and the outer ground
terminal on the housing not to the potential equalisation!
Information:
The metal parts of the instrument (antenna,transmitter,concentric
tube,etc.) are conductive connected with the inner and outer ground
terminal on the housing.This connection exists either directly metallic
or with instruments with external electronics via the screen of the
special connection cable.You can find specifications to the potential
connections within the instrument in chapter "Technical data".
Take note of the corresponding installation regulations for Ex
applications.
5.2Connection procedure
Proceed as follows:
1Loosen the screw on the rear of the plug connector
2Remove the plug connector and seal from VEGABAR 14
3Remove the plug insert out of the plug housing
1
2
3
Fig.3:Loosen the plug insert
1Cable gland
2Plug insert
3Plug housing
4Remove approx.5cm of the cable mantle,strip approx.1cm
insulation from the individual wires
5Lead the cable through the cable gland into the plug housing
6Connect the wire ends to the screw terminals according to the
wiring plan
Select connec-
tion cable for Ex
applications
Connection via angle
plug connector
12 VEGABAR 14
5Connecting to power supply
22441-EN-111006

2
3
1
4
Fig.4:Connection to the screw terminals
1Cable gland
2Plug housing
3Plug insert
4Plug seal
7Snap the plug insert into the plug housing and insert the sensor
seal
8Plug the plug insert with seal to VEGABAR 14 and tighten the
screw
The electrical connection is finished.
Proceed as follows:
1Loosen the screw in the cover of the plug connector
2Open the cover and remove it
3Press the plug insert downwards
4Loosen the screws of the strain relief and cable entry
Connection via angle
plug connector with hin-
ged cover
VEGABAR 14 13
5Connecting to power supply
22441-EN-111006

4
32
1
3
2
1
Fig.5:Loosen the plug insert
1Plug insert
2Strain relief
3Cable gland
4Plug housing
5Remove approx.5cm of the cable mantle,strip approx.1cm
insulation from the individual wires
6Lead the cable through the cable gland into the plug housing
7Connect the wire ends to the screw terminals according to the
wiring plan
1
5
2
3
4
Fig.6:Connection to the screw terminals
1Cable gland
2Cover
3Plug housing
4Plug insert
5Plug seal
8Snap the plug insert into the plug housing and insert the sensor
seal
14 VEGABAR 14
5Connecting to power supply
22441-EN-111006

Information:
Note the correct arrangement,see illustration
9Tighten the screws on the strain relief and cable entry
10 Hook in the cover and push onto the plug connection,tighten
cover screw
11 Plug the plug insert with seal to VEGABAR 14 and tighten the
screw
The electrical connection is finished.
5.3Wiring plan
1
2
3
+
-
1
Fig.7:Wiring plan plug connector according to ISO 4400,view to the connection
on the instrument side
1Voltage supply and signal output
3
+
-
1
3
2
4
1
Fig.8:Wiring plan round plug connector M12 x1,view to the connection on the
instrument side
1Voltage supply and signal output
Connection via confectioned cable with 4-pin socket M12 x1
As an option,the instrument is supplied with a confectioned cable with
4-pin socket M12 x1.The following table shows the wire assignment
of the socket.
Angled plug connector
according to ISO 4400
Round plug connector
M12 x1
VEGABAR 14 15
5Connecting to power supply
22441-EN-111006

Wire colour Connector
Brown 1
White 2
Blue 3
Black 4
4
1
2
2
3
Fig.9:Wiring plan cable outlet1)
1brown (+)power supply and signal output
2blue (-) power supply and signal output
3Cable screening
4Breather capillaries
5.4Switch-on phase
After connecting VEGABAR 14 to power supply or after a voltage
recurrence,the instrument carries out a self-check:
lInternal check of the electronics
l4…20 mAoutput jumps to the fault signal 22 mA
Then VEGABAR 14 delivers a current of 4…20 mAto the cable.The
value corresponds to the actual level as well as to settings already
carried out,e.g.the factory setting.
1)The other cables are not connected.
Direct cable outlet
16 VEGABAR 14
5Connecting to power supply
22441-EN-111006

6Set up
6.1Setup steps
After mounting and electrical connection,VEGABAR 14 is ready for
operation.
VEGABAR 14 delivers a current of 4…20 mAcorresponding to the
actual process pressure.
Further settings are not necessary.
VEGABAR 14 17
6Set up
22441-EN-111006

7Maintenance and fault rectification
7.1Maintenance
If the instrument is used properly,no special maintenance is required
in normal operation.
7.2Remove interferences
The operator of the system is responsible for taking suitable measures
to rectify faults.
VEGABAR 14 offers maximum reliability.Nevertheless,faults can
occur during operation.These may be caused by the following,e.g.:
lSensor
lProcess
lVoltage supply
lSignal processing
The first measure to be taken is to check the output signal.In many
cases,the causes can be determined this way and the faults rectified.
Should these measures not be successful,please call in urgent cases
the VEGA service hotline under the phone no.+49 1805 858550.
The hotline is available to you 7days a week round-the-clock.Since
we offer this service world-wide,the support is only available in the
English language.The service is free of charge,only the standard
telephone costs will be charged.
?4…20 mAsignal not stable
lno atmospheric pressure compensation
àCheck the pressure compensation in the plug or via the
capillaries
?No4…20 mAsignal
lConnection to voltage supply wrong
àCheck connection according to chapter "Connection steps"
and if necessary,correct according to chapter "Wiring plan"
lNo voltage supply
àCheck cables for breaks;repair if necessary
lOperating voltage too low or load resistance too high
àCheck,adapt if necessary
Reaction when malfunc-
tions occur
Failure reasons
Fault rectification
24 hour service hotline
Checking the 4…20 mA
signal
18 VEGABAR 14
7Maintenance and fault rectification
22441-EN-111006

?Current signal 22 mA
lelectronics module or measuring cell defective
àExchange the instrument or send it in for repair
InEx applications,the regulations for the wiring of intrinsically safe
circuits must be observed.
Depending on the reason for the fault and the measures taken,the
steps described in chapter "Set up"may have to be carried out again.
7.3Instrument repair
If a repair is necessary,please proceed as follows:
You can download a return form (23 KB)from our Internet homepage
www.vega.com under:"Downloads -Forms and certificates -Repair
form".
By doing this you help us carry out the repair quickly and without
having to call back for needed information.
lPrint and fill out one form per instrument
lClean the instrument and pack it damage-proof
lAttach the completed form and,if need be,also a safety data
sheet outside on the packaging
lPlease ask the agency serving you for the address of your return
shipment.You can find the respective agency on our website
www.vega.com under:"Company -VEGA worldwide"
Reaction after fault rec-
tification
VEGABAR 14 19
7Maintenance and fault rectification
22441-EN-111006

8Dismounting
8.1Dismounting steps
Warning:
Before dismounting,be aware of dangerous process conditions such
as e.g.pressure in the vessel,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.
8.2Disposal
The instrument consists of materials which can be recycled by
specialised recycling companies.We use recyclable materials and
have designed the electronics to be easily separable.
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.
Correct disposal avoids negative effects on humans and the environ-
ment and ensures recycling of useful raw materials.
Materials:see chapter "Technical data"
If you have no way to dispose of the old instrument properly,please
contact us concerning return and disposal.
20 VEGABAR 14
8Dismounting
22441-EN-111006