Vega VEGABAR 51 User manual

Operating Instructions
VEGABAR 51
Profibus PA
Document ID:
36714
Process pressure/
Hydrostatic

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
2.7Fulfillment of NAMUR recommendations . . . . . . . . . . 6
2.8Safety instructions for Ex areas . . . . . . . . . . . . . . . . . 6
2.9Safety instructions for oxygen applications . . . . . . . . . 6
2.10 Environmental instructions..................... 6
3Product description
3.1Configuration .............................. 8
3.2Principle of operation ........................ 9
3.3Operation................................. 10
3.4Packaging,transport and storage ............... 10
3.5Accessory and replacement parts ............... 11
4Mounting
4.1General instructions ......................... 13
4.2Mounting steps............................. 15
4.3Mounting steps,tube isolating diaphragm. . . . . . . . . . 16
4.4Mounting steps external housing . . . . . . . . . . . . . . . . 16
5Connecting to power supply
5.1Preparing the connection ..................... 18
5.2Connection procedure........................ 19
5.3Wiring plan,single chamber housing . . . . . . . . . . . . . 22
5.4Wiring plan,double chamber housing . . . . . . . . . . . . 23
5.5Wiring plan double chamber housing Ex d . . . . . . . . . 25
5.6Wiring plan -version IP 66/IP 68,1bar . . . . . . . . . . . 26
5.7Wiring plan,external housing with version IP 68 . . . . . 27
5.8Switch on phase............................ 28
6Set up with the indicating and adjustment module PLICSCOM
6.1Short description ........................... 30
6.2Insert indicating and adjustment module. . . . . . . . . . . 30
6.3Adjustment system .......................... 32
6.4Setup procedure............................ 33
6.5Menu schematic ............................ 43
6.6Saving the parameter adjustment data . . . . . . . . . . . . 45
2VEGABAR 51 •Profibus PA
Contents
36714-EN-091008

7Setup with PACTware and other adjustment programs
7.1Connect the PC via VEGACONNECT . . . . . . . . . . . . 46
7.2Parameter adjustment with PACTware . . . . . . . . . . . . 47
7.3Parameter adjustment with PDM ................ 47
7.4Saving the parameter adjustment data . . . . . . . . . . . . 47
8Maintenance and fault rectification
8.1Maintain.................................. 48
8.2Remove interferences ........................ 48
8.3Exchanging the electronics module . . . . . . . . . . . . . . 50
8.4Software update ............................ 50
8.5Instrument repair ........................... 51
9Dismount
9.1Dismounting steps .......................... 52
9.2Disposal ................................. 52
10 Supplement
10.1Technical data ............................. 53
10.2Information on Profibus PA .................... 62
10.3Dimensions ............................... 68
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
with the delivery.You can find them listed in chapter "Product
description".
VEGABAR 51 •Profibus PA 3
Contents
36714-EN-091008

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.
4VEGABAR 51 •Profibus PA
1About this document
36714-EN-091008

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 51 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 required occupational safety measures with the
current valid rules and regulations and also take note of new
regulations.
VEGABAR 51 •Profibus PA 5
2For your safety
36714-EN-091008

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.
2.7Fulfillment of NAMUR recommendations
With respect to compatibility,the NAMUR recommendation NE 53 is
fulfilled.This applies also to the corresponding indicating and
adjustment components.VEGA instruments are generally upward and
downward compatible.
lSensor software to DTM VEGABAR 51
lDTM VEGABAR 51 for adjustment software PACTware
lIndicating and adjustment module for sensor software
The parameter adjustment of the basic sensor functions is independ-
ent of the software version.The range of available functions depends
on the respective software version of the individual components.
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.
2.9Safety instructions for oxygen applications
For instruments in oxygen applications the special instructions in
chapters "Storage and transport","Mounting"as well as "Technical
data"under "Process conditions"must be noted.Furthermore the valid
national regulations,implementation instructions and memorandums
of the BG (professional assoc.) must be noted.
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:
6VEGABAR 51 •Profibus PA
2For your safety
36714-EN-091008

lChapter "Packaging,transport and storage"
lChapter "Disposal"
VEGABAR 51 •Profibus PA 7
2For your safety
36714-EN-091008

3Product description
3.1Configuration
The scope of delivery encompasses:
lVEGABAR 51 pressure transmitter
lDocumentation
-this operating instructions manual
-Test certificate for pressure transmitters
-Ex specific safety instructions (with Ex versions), if necessary
further certificates
-Operating instructions manual 27835 "Indicating and adjust-
ment module PLICSCOM"(optional)
-Supplementary instructions manual 31708 "Heating for in-
dicating and adjustment module"(optional)
-Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors"(optional)
VEGABAR 51 consists of the components:
lProcess fitting with measuring cell
lHousing with electronics,optionally available with plug connector
lHousing cover,optionally available with indicating and adjustment
module
The components are available in different versions.
3
2
1
Fig.1:Example of a VEGABAR 51 with flange connection DN 50 PN 40 and
plastic housing
1Housing cover with integrated indicating and adjustment module (optional)
2Housing with electronics
3Process fitting with measuring cell
The type label contains the most important data for identification and
use of the instrument:
Scope of delivery
Components
Type label
8VEGABAR 51 •Profibus PA
3Product description
36714-EN-091008

lInstrument type
lArticle number instrument
lTechnical data:Measuring range,process pressure,process
temperature,signal output,voltage supply,protection,protection
class
lOrder number
lArticle numbers,documentation
lSerial number
The serial number allows you to 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.
Instruments in the version "Oil and grease-free for oxygen applica-
tions"are equipped with a supplementary label.The supplementary
label contains instructions on oil and grease-free parts of the
instrument.
3.2Principle of operation
The VEGABAR 51 is a pressure transmitter with isolating diaphragm
for pressure measurement of highly corrosive and hot liquids.
The sensor element for measuring ranges up to 60 bar is the
CERTEC
®
measuring cell with rugged ceramic diaphragm.The
hydrostatic pressure of the product or the process pressure causes a
capacitance change in the measuring cell via the metal process
diaphragm and the isolating system.This change is converted into a
corresponding output signal.1)
The sensor element for measuring ranges from 100 bar is a wire strain
gauge (DMS)on the rear of the process diaphragm.There,the
process pressure causes a resistance change,which is converted into
an appropriate output signal.
Power supply via the Profibus DP/PA segment coupler or VEGALOG
571 EP cards.Atwo-wire cable according to Profibus specification
serves as carrier of both power and digital data transmission for
multiple sensors.The instrument profile of VEGABAR 51 corresponds
to profile specification version 3.0.
The backlight of the indicating and adjustment module is powered by
the sensor.Prerequisite is a certain level of operating voltage.
The data for power supply are specified in chapter "Technical data".
1)The isolating system protects the sensor against corrosive products and
high temperatures.By selecting suitable diaphragm materials and isolating
liquids,systems with a temperature resistance up to 400 °C(752 °F)can be
achieved.
Supplementary label
"Oil and grease-free for
oxygen applications"
Application area
Functional principle
Power supply and bus
communication
VEGABAR 51 •Profibus PA 9
3Product description
36714-EN-091008

The optional heating requires its own operating voltage.You can find
details in the supplementary instructions manual "Heating for indicat-
ing and adjustment module".
This function is generally not available for approved instruments.
The GSD (instrument master files)and bitmap files necessary for
planning your Profibus-DP-(PA)communication network are available
from the download section on the VEGA homepage www.vega.com
under "Services -Downloads -Software -Profibus".There you can
also find the appropriate certificates.In a PDM environment,an EDD
(Electronic Device Description)is also required to enable the full range
of sensor functions (also available as a download).A CD with the
appropriate files can be ordered via e-mail under [e-mail] or
by phone from one of the VEGA agencies under the order number
"DRIVER.S".
3.3Operation
VEGABAR 51 can be adjusted with different adjustment media:
lwith indicating and adjustment module
lwith the suitable VEGA DTM in conjunction with an adjustment
software according to the FDT/DTM standard,e.g.PACTware and
PC
lwith the adjustment program PDM
3.4Packaging,transport and storage
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.For special versions,PE foam or PE foil
is also used.Dispose of the packaging material via specialised
recycling companies.
Caution:
Instruments for oxygen applications are sealed in PE foil and provided
with a label "Oxygen!Use no Oil".Remove this foil just before
mounting the instrument!See instruction under "Mounting".
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.
GSD/EDD
Packaging
Transport
Transport inspection
10 VEGABAR 51 •Profibus PA
3Product description
36714-EN-091008

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 %
3.5Accessory and replacement parts
The indicating and adjustment module PLICSCOM is used for
measured value indication,adjustment and diagnosis.It can be
inserted into the sensor and removed at any time.
You find further information in the operating instructions "Indicating and
adjustment module PLICSCOM"(Document-ID 27835).
The interface adapter VEGACONNECT 4enables the connection of
communication-capable instruments to the USB interface of a PC.For
parameter adjustment of these instruments,an adjustment software
such as PACTware with VEGA-DTM is required.
You find further information in the operating instructions "Interface
adapter VEGACONNECT"(Document-ID 32628).
VEGADIS 61 is suitable for external measured value indication and
adjustment of plics®sensors.It is connected to the sensor with an up
to 50 m long,four-wire,screened standard cable.
You find further information in the operating instructions "VEGADIS 61"
(Document-ID 27720).
VEGADIS 62 is suitable for measured value indication and adjustment
of sensors with HART protocol.It is looped into the 4…20 mA/HART
signal cable.
You find further information in the operating instructions "VEGADIS 62"
(Document-ID 36469).
Flanges are available in different versions according to the following
standards:DIN 2501,EN 1092-1,ANSI B 16.5,JIS B 2210-1984,
GOST 12821-80.
Storage
Storage and transport
temperature
Indicating and adjust-
ment module
Interface adapter
External indicating and
adjustment units
Flanges
VEGABAR 51 •Profibus PA 11
3Product description
36714-EN-091008

You will find additional information in the supplementary instructions
manual "Flanges according to DIN-EN-ASME-JIS"(Document-ID
31088).
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
You will find additional information in the supplementary instructions
manual "Protective cover"(Document-ID 34296).
The electronics module is a replacement part for pressure transmitter
VEGABAR.One version is available for each type of signal output.
You find further information in the operating instructions "Electronics
module VEGABAR series 50 and 60 "(Document-ID 30175).
Protective cover
Electronics module
12 VEGABAR 51 •Profibus PA
3Product description
36714-EN-091008

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.
Caution:
After removal of the diaphragm protective cover,the diaphragm must
not be pressed.
Select an installation position you can easily reach for mounting and
connecting as well as later retrofitting of an indicating and adjustment
module.The housing can be rotated by 330°without the use of any
tools.You can also install the indicating and adjustment module in four
different positions (each displaced by 90°).
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
Suitability for the proc-
ess conditions
Diaphragm pro-
tection
Mounting position
Moisture
VEGABAR 51 •Profibus PA 13
4Mounting
36714-EN-091008

The ventilation of the electronics housing as well as the atmosperic
pressure compensation for the measuring cell are realised via a filter
element in the area of the cable gland.
2
1
2
1
2
1
1
2
Fig.3:Position of the filter element.Upper row single chamber housing,lower
row double chamber housing
1Filter element
2Blind stopper
Caution:
Due to the filter effect,the pressure compensation is time delayed.
When opening/closing the housing cover quickly,the measured value
can change for a period of approx.5s by up to 15 mbar.
Information:
Make sure that the filter element is always free of buildup during
operation.Ahigh-pressure cleaner must not be used for cleaning.
With instrument versions in protection IP 66/IP 68,1bar,the ventilation
is realised via the capillaries in the permanently connected cable.The
filter element is replaced by a blind stopper.
Higher process temperatures often mean also higher ambient
temperatures.Make sure that the upper temperature limits stated in
chapter "Technical data"for the environment of the electronics housing
and connection cable are not exceeded.
Ventilation and pressure
compensation
Temperature limits
14 VEGABAR 51 •Profibus PA
4Mounting
36714-EN-091008

1
2
Fig.4:Temperature ranges
1Process temperature
2Ambient temperature
Danger:
Instruments in the version "Oil and grease free for oxygen"should be
unpacked just before mounting.After the protective cover of the
process fitting has been removed,the label "O₂"on the process fitting
is visible.Contamination by oil,grease and dirt should be avoided.
Danger of explosion!
4.2Mounting steps
For mounting VEGABAR 51,a welded socket is required.You can find
these components in the supplementary instructions manual "Welded
socket and seals".
Seal the thread with teflon,hemp or a similar resistant seal material on
the process fitting thread 1½NPT.
àScrew VEGABAR 51 into the welded socket.Tighten the hexagon
on the process fitting with a suitable wrench.Wrench size,see
chapter "Dimensions".
Warning:
The housing must not be used to screw the instrument in!Applying
tightening force can damage internal parts of the housing.
Seal the flange connections according to DIN/ANSI with a suitable,
resistant seal and mount VEGABAR 51 with suitable screws.
Oxygen applications
Welding the socket
Sealing/Screwing in
threaded versions
Sealing/Screwing in
flange versions
VEGABAR 51 •Profibus PA 15
4Mounting
36714-EN-091008

Use the seal suitable for the respective process fitting.You can find
the components in the supplementary instructions manual "Welded
socket and seals".
4.3Mounting steps,tube isolating diaphragm
The isolating systems are temperature and pressure-aged at 80 °C
and 18 bar.The zero point is adjusted at 22 °C±2°Cand a torque of
275 Nm.The defined installation position is:Tube isolating diaphragm
horizontally,VEGABAR 51 vertically.
For installation,proceed as follows:
1Position VEGABAR 51 with tube isolating diaphragm
2Tighten the threaded fittings step-by-step once on the right and on
the left
3Hold VEGABAR 51,to avoid distortion from the defined installation
position.
Caution:
Apart from mounting,the tube isolating diaphragm must not be
permanently under torsion.
4Check current after mounting.The current must be between 3.9
and 4.1mA.In case of a deviating value,losen threaded fitting and
mount again.
Information:
By slightly increasing or reducing the torque,the current can be set
exactly to 20 mA.
4.4Mounting steps external housing
1Mark the holes according to the following drilling template
2Depending on the mounting surface,fasten the wall mounting
plate with 4screws
Sealing/Screwing in hy-
gienic fittings
Wall mounting
16 VEGABAR 51 •Profibus PA
4Mounting
36714-EN-091008

90 mm (3.54")
R 3,5 mm
(0.14")
3mm
(0.12")
70 mm (2.76") 8 mm
(0.32")
93 mm (3.66")
110 mm (4.33")
Fig.5:Drilling template -wall mounting plate
Tip:
Mount the wall mounting plate so that the cable entry of the socket
housing points downward.The socket housing can be displaced by
180°to the wall mounting plate.
Warning:
The four screws of the socket housing must only be hand-screwed.A
torque >5Nm(3.688 lbf ft)can damage the wall mounting plate.
VEGABAR 51 •Profibus PA 17
4Mounting
36714-EN-091008

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 overvoltage surges are expected,overvoltage arresters should
be installed according to Profibus specifications
Tip:
We recommend VEGA overvoltage arrester B63-32.
In hazardous areas you should take note of the appropriate regulations,
conformity and type approval certificates of the sensors and power
supply units.
Power is supplied via a Profibus DP/PA segment coupler or a
VEGALOG 571 EP input card.The power supply range can differ
depending on the instrument version.
The data for power supply are specified in chapter "Technical data".
Connection is made with screened cable according to the Profibus
specification.Power supply and digital bus signal are carried over the
same two-wire connection cable.
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.
Please make sure that your installation is carried out according to the
Profibus specification.In particular,make sure that the termination of
the bus is done with appropriate terminating resistors.
On the instrument with cable entry ½NPT and plastic housing there is
a metallic ½" threaded insert moulded into the plastic housing.
Caution:
No grease should be used when screwing the NPT cable gland or
steel tube into the threaded insert.Standard grease can contain
additives that corrode the connection between threaded insert and
housing.This would influence the stability of the connection and the
tightness of the housing.
Safety instructions
Power supply
Connection cable
Cable gland ½NPT
18 VEGABAR 51 •Profibus PA
5Connecting to power supply
36714-EN-091008

In systems with potential equalisation,connect the cable screen
directly to ground potential at the power supply unit,in the connection
box and at the sensor.The screen in the sensor must be connected
directly to the internal ground terminal.The ground terminal outside on
the housing must be connected to the potential equalisation (low
impedance).
In systems without potential equalisation,connect the cable screen
directly to ground potential at the power supply unit and at the sensor.
In the connection box or T-distributor,the screen of the short stub to
the sensor must not be connected to ground potential or to another
cable screen.The cable screens to the power supply unit and to the
next distributor must be connected to each other and also connected
to ground potential 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 interference signals remains.
The total capacitance of the cable and of all capacitors must not exceed
10 nFin Ex applications.
Take note of the corresponding installation regulations for Ex
applications.In particular,make sure that no potential equalisation
currents flow over the cable screen.In case of grounding on both sides
this can be achieved by the use of a capacitor or a separate potential
equalisation.
5.2Connection procedure
Proceed as follows:
1Unscrew the housing cover
2If an indicating and adjustment module is installed,remove it by
turning it slightly to the left.
3Loosen compression nut of the cable entry
4Remove approx.10 cm of the cable mantle,strip approx.1cm
insulation from the individual wires
5Insert the cable through the cable gland into the sensor
6Lift the opening levers of the terminals with a screwdriver (see
following illustration)
7Insert the wire ends into the open terminals according to the wiring
plan
8Press down the opening levers of the terminals,you will hear the
terminal spring closing
9Check the hold of the wires in the terminals by lightly pulling on
them
10 Connect the screen to the internal ground terminal,connect the
outer ground terminal with potential equalisation
Cable screening and
grounding
Single/Double chamber
housing
VEGABAR 51 •Profibus PA 19
5Connecting to power supply
36714-EN-091008

11 Tighten the compression nut of the cable entry.The seal ring must
completely encircle the cable
12 Screw the housing cover on
The electrical connection is finished.
Fig.6:Connection steps 6and 7
Proceed as follows:
1Loosen the four screws on the housing socket with an Allen key
size 4
IP 68 version with exter-
nal housing
20 VEGABAR 51 •Profibus PA
5Connecting to power supply
36714-EN-091008