Vega VEGABAR 12 User manual

Operating Instructions
VEGABAR 12
Document ID:
35544
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
2.8Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 8
3.3Operation................................. 8
3.4Packaging,transport and storage ............... 8
4Mounting
4.1General instructions ......................... 10
4.2Mounting instructions ........................ 10
4.3Mounting steps............................. 10
5Connecting to power supply
5.1Preparing the connection ..................... 11
5.2Wiring plan................................ 12
5.3Switch on phase............................ 12
6Set up
6.1Setup steps without adjustment ................. 13
6.2Setup steps with PC operation ................. 13
7Maintenance and fault rectification
7.1Maintenance .............................. 14
7.2Fault rectification ........................... 14
7.3Instrument repair ........................... 15
8Dismounting
8.1Dismounting steps .......................... 16
8.2Disposal ................................. 16
9Supplement
9.1Technical data ............................. 17
9.2Dimensions ............................... 20
2VEGABAR 12
Contents
35544-EN-110616

Editing status:2011-05-27
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
with the delivery.You can find them listed in chapter "Product
description".
VEGABAR 12 3
Contents
35544-EN-110616

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 12
1About this document
35544-EN-110616

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 12 is a pressure transmitter for the bubble-through method
with neutral gases.
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 12 5
2For your safety
35544-EN-110616

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 higher measuring range
than the permissible pressure range of the process pressure can be
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.
2.8Environmental 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 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 12
2For your safety
35544-EN-110616

3Product description
3.1Structure
The scope of delivery encompasses:
lVEGABAR 12 process pressure transmitter
lMounting accessories,depending on the version
lDocumentation
-this operating instructions manual
-Operating instructions 35584 -PC operation VEGABAR 12
(optional)
-if necessary,further certificates
3
2
1
Fig.1:VEGABAR 12 with terminal connection
1Process fitting
2Housing with electronics
3Pressure compensation
The type label contains the most important data for identification and
use of the instrument:
lArticle number
lSerial number
lTechnical data
lArticle number,documentation
The serial number allows you to access the delivery data of the
instrument via www.vega.com,"VEGA Tools"and "serial number
search".
Scope of delivery
Structure
Type label
VEGABAR 12 7
3Product description
35544-EN-110616

3.2Principle of operation
VEGABAR 12 is a pressure transmitter for gauge pressure measure-
ment of neutral gases.
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 optional operation of the instrument is carried out via a PC with
interface adapter and VEGA adjustment software.
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
Application area
Functional principle
Voltage supply
Packaging
Transport
Transport inspection
Storage
8VEGABAR 12
3Product description
35544-EN-110616

lStorage and transport temperature see chapter "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Storage and transport
temperature
VEGABAR 12 9
3Product description
35544-EN-110616

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.
4.2Mounting instructions
VEGABAR 12 functions in any installation position.
Information:
We recommend using the measuring instrument holder of the line of
mounting accessory.
4.3Mounting steps
For mounting VEGABAR 12,a connection with G1/8"outer thread is
required.
Suitability for the pro-
cess conditions
Mounting position
10 VEGABAR 12
4Mounting
35544-EN-110616

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
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.
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 3.6mAin 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.
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.
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!
Note safety instructions
Select power supply
Select connection cable
Cable screening and
grounding
VEGABAR 12 11
5Connecting to power supply
35544-EN-110616

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".
5.2Wiring plan
1
2
+
+
-
-
Fig.2:VEGABAR 12 -wiring plan
1Voltage supply and signal output
2PC adjustment interface
5.3Switch on phase
After connecting VEGABAR 12 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 failure signal 3.6mA
Then VEGABAR 12 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.
12 VEGABAR 12
5Connecting to power supply
35544-EN-110616

6Set up
6.1Setup steps without adjustment
After mounting and electrical connection,VEGABAR 12 is ready for
operation.
VEGABAR 12 delivers a current of 4…20 mAaccording to the actual
process pressure.Further settings are not necessary.
6.2Setup steps with PC operation
The procedure is described in the separate operating instructions "PC
operation for VEGABAR 12".
VEGABAR 12 13
6Set up
35544-EN-110616

7Maintenance and fault rectification
7.1Maintenance
If the instrument is used properly,no special maintenance is required
in normal operation.
7.2Fault rectification
The operator of the system is responsible for taking suitable measures
to rectify faults.
VEGABAR 12 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 pressure compensation
?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 operating voltage
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
Causes of faults
Fault rectification
24 hour service hotline
Checking the 4…20 mA
signal
14 VEGABAR 12
7Maintenance and fault rectification
35544-EN-110616

?Current signal 3.6mA
lelectronics module or measuring cell defective
àExchange the instrument or send it in for repair
Depending on the failure reason and measures taken,the steps
described in chapter "Set up"must be carried out again,if necessary.
7.3Instrument repair
If a repair is necessary,please proceed as follows:
You can download a return form (23 KB)from our homepage at 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 12 15
7Maintenance and fault rectification
35544-EN-110616

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.
16 VEGABAR 12
8Dismounting
35544-EN-110616

9Supplement
9.1Technical data
General data
Parameter,pressure Gauge pressure
Measuring principle Ceramic-capacitive,dry measuring cell
Communication interface Standard interface
Materials and weights
Materials,wetted parts
-Process fitting 316L
-Diaphragm sapphire ceramic
®
(99.9%oxide ceramic)
-Measuring cell seal FKM
Materials,non-wetted parts
-Electronics housing 316L
-Connection terminals PA
-Ohmic contact Between ground terminal,housing and process
fitting
Torque max.20 Nm(14.75 lbf ft)
Weight approx.0.1kg (0.22 lbs)
Output variable
Output signal 4…20 mA
Fault signal 3,6mA
Max.output current 22 mA
Step response time 160 ms (0…63 %)
Input variable
Adjustment
Adjustment range of the zero/span adjustment relating to the nominal measuring range:
-zero -20 …+20 %
-span 20 …+120 %
Max.turn down 5:1
Nominal measuring ranges and overload resistance
The overload specifications are only an overview and refer to the measuring cell.Limitations by
material and process fitting version are possible.The specifications on the type label are
applicable.
VEGABAR 12 17
9Supplement
35544-EN-110616

Nominal range Overload capacity,max.
pressure
Overload capacity,min.
pressure
Gauge pressure
0…1bar/0…100 kPa35 bar/3500 kPa-1bar/-100 kPa
0…2.5bar/0…250 kPa50 bar/5000 kPa-1bar/-100 kPa
0…4bar/0…400 kPa65 bar/6500 kPa-1bar/-100 kPa
Absolute pressure
0…1,6bar/0…160 kPa50 bar/5000 kPa-1bar/-100 kPa
0…2.5bar/0…250 kPa50 bar/5000 kPa-1bar/-100 kPa
0…4bar/0…400 kPa65 bar/6500 kPa-1bar/-100 kPa
Reference conditions and actuating variables (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
-Temperature +15 …+25 °C(+59 …+77 °F)
-Relative humidity 45 …75 %
-Air pressure 860 …1060 mbar/86 …106 kPa(12.5…15.4psi)
Determination of characteristics Limit point adjustment according to IEC 61298-2
Characterstic curve Linear
Reference installation position upright,diaphragm points downward
Influence of the installation position <0.2mbar/20 Pa(0.003 psig)
Deviation determined according to the limit point method according to IEC 607701)
Deviation <0.5%
Influence of the ambient temperature2)
Average temperature coefficient of the zero
signal3)
<0.15 %/10 K
Long-term stability (similar to DIN 16086,DINV 19259-1and IEC 60770-1)
Long-term drift of the zero signal4)<0.1%/2years
Ambient conditions
Ambient,storage and transport temperature -20 …+85 °C(-4…+185 °F)
Process conditions
Product temperature -20 …+85 °C(-4…+185 °F)
1)Relating to the nominal measuring range,incl.non-linearity,hysteresis and
non-reproducibility.
2)Relating to the nominal measuring range.
3)In the compensated temperature range of 0…+80 °C(+32 …+176 °F),
reference temperature 20 °C(68 °F).
4)Relating to the nominal measuring range.
18 VEGABAR 12
9Supplement
35544-EN-110616

Vibration resistance mechanical vibrations with 4g and 5…100 Hz5)
Electromechanical data
Screw terminals for cable cross-section up to 1.5mm²(AWG 16)
Voltage supply
Operating voltage 8…30 V DC
Permissible residual ripple U
ss
<1V
Load see diagram
Electrical protective measures
Protection rating6)IP 20
Protection class III
Overvoltage category III
5)Tested according to the guidelines of German Lloyd,GL directive 2.
6)According to EN 60529/IEC 529.
VEGABAR 12 19
9Supplement
35544-EN-110616

9.2Dimensions
VEGABAR 12
63 mm (2.48")
57,5 mm (2.26")
10 mm
(0.39")
max. 6,5 mm
(0.26")
SW/SWS 24
(0.95")
G 1/8
ø 26 mm
(1.02")
Fig.3:Dimensions VEGABAR 12
20 VEGABAR 12
9Supplement
35544-EN-110616