Vega VEGABAR 82 User manual

Operating Instructions
Pressure transmitter with ceramic
measuring cell
VEGABAR 82
Slave sensor for electronic differential pres-
sure
With SIL qualication
Document ID: 48046

2
Contents
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 CE conformity................................................................................................................... 5
2.6 SIL qualication according to IEC 61508.......................................................................... 5
2.7 Permissible process pressure .......................................................................................... 6
2.8 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Supplementary cleaning procedures.............................................................................. 11
3.4 Packaging, transport and storage................................................................................... 12
3.5 Accessories and replacement parts ............................................................................... 12
4 Mounting
4.1 General instructions for use of the instrument ................................................................ 14
4.2 Ventilation and pressure compensation.......................................................................... 15
4.3 Combination Master - Slave ........................................................................................... 17
4.4 Level measurement........................................................................................................ 18
4.5 Dierential pressure measurement ................................................................................ 19
4.6 Interface measurement .................................................................................................. 20
4.7 Density measurement .................................................................................................... 21
4.8 External housing ............................................................................................................ 23
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 24
5.2 Connecting..................................................................................................................... 24
5.3 Single chamber housing................................................................................................. 25
5.4 External housing with version IP 68 (25 bar)................................................................... 26
5.5 Connection example ...................................................................................................... 28
6 Functional safety (SIL)
6.1 Objective........................................................................................................................ 29
6.2 SIL qualication.............................................................................................................. 29
6.3 Application area ............................................................................................................. 29
6.4 Safety concept of the parameterization .......................................................................... 30
7 Set up with the display and adjustment module
7.1 Parameter adjustment .................................................................................................... 32
8 Diagnosis, asset management and service
8.1 Maintenance .................................................................................................................. 44
8.2 Rectify faults................................................................................................................... 44
8.3 Calculation of total deviation (according to DIN 16086).................................................. 45

3
Contents
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
8.4 Exchanging the electronics module................................................................................ 46
8.5 Exchange process assembly with version IP 68 (25 bar)................................................ 46
8.6 How to proceed if a repair is needed .............................................................................. 47
9 Dismount
9.1 Dismounting steps.......................................................................................................... 49
9.2 Disposal ......................................................................................................................... 49
10 Supplement
10.1 Technical data ................................................................................................................ 50
10.2 Dimensions .................................................................................................................... 58
Safety instructions for Ex areas
Please note the Ex-specic safety information for installation and op-
eration in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
Editing status:2014-06-17

4
1 About this document
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tions for maintenance and fault rectication. Please read this informa-
tion before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbols 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.
•List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
2 For your safety
2.1 Authorised 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.
2.2 Appropriate use
VEGABAR 82 is a slave sensor for electronic dierential pressure
measurement.
You can nd detailed information about the area of application in
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specications in the operating instructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specic hazards, e.g. vessel overll or damage to system
components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a high-tech instrument requiring the strict observance of stand-
ard regulations and guidelines. The user must take note of the safety
instructions in this operating instructions manual, the country-specic
installation standards as well as all prevailing safety regulations and
accident prevention rules.
The instrument must only be operated in a technically awless and
reliable condition. The operator is responsible for trouble-free opera-
tion 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 regula-
tions.
2.5 CE conformity
The device fullls the legal requirements of the applicable EC guide-
lines. By axing the CE marking, we conrm successful testing of the
product.
You can nd the CE Certicate of Conformity in the download section
of our homepage.
2.6 SILqualicationaccordingtoIEC61508
The Safety Integrity Level (SIL) of an electronic system is used to as-
sess the reliability of integrated safety functions.

6
2 For your safety
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
For detailed specication of the safety requirements, multiple SIL
levels are specied according to safety standard IEC 61508. You can
nd detailed information in chapter "Functional safety (SIL)"
The instrument meets the specications of IEC 61508: 2010 (Edi-
tion 2). It is qualied for single-channel operation up to SIL2. The
instrument can be used homogeneously redundant up to SIL3 in
multi-channel architecture with HFT 1.
2.7 Permissible process pressure
The permissible process pressure is specied on the type label with
"Process pressure", see chapter "Conguration". For safety reasons,
this range may not be exceeded. This applies even if a measuring cell
with a measuring range (order-related) higher than the permissible
pressure range of the process tting is installed.
2.8 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 pro-
tection. The environment management system is certied according
to DIN EN ISO 14001.
Please help us fulll this obligation by observing the environmental
instructions in this manual:
•Chapter "Packaging, transport and storage"
•Chapter "Disposal"

7
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
3 Product description
3.1 Conguration
The type label contains the most important data for identication and
use of the instrument:
2
1
14
15
16
17
13
11
12
5
3
6
4
7
8
9
10
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Field for approvals
4 Power supply and signal output, electronics
5 Protection rating
6 Measuring range
7 Permissible process pressure
8 Material, wetted parts
9 Hardware and software version
10 Order number
11 Serial number of the instrument
12 Data-Matrix-Code for Smartphone-App
13 Symbol of the device protection class
14 ID numbers, instrument documentation
15 Reminder to observe the instrument documentation
16 Notied authority for CE marking
17 Approval directive
18 SIL identication
The type label contains the serial number of the instrument. With it
you can nd the following instrument data on our homepage:
•Product code (HTML)
•Delivery date (HTML)
•Order-specic instrument features (HTML)
•Operating instructions, quick setup guide and Safety Manual at the
time of shipment (PDF)
•Test certicate (PDF) - optional
Go to www.vega.com, "VEGA Tools" and "Instrument search". Enter
the serial number.
Alternatively, you can access the data via your smartphone:
Type label
Serial number - Instru-
ment search

8
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
•Download the smartphone app "VEGA Tools" from the "Apple App
Store" or the "Google Play Store"
•Scan the Data Matrix code on the type label of the instrument or
•Enter the serial number manually in the app
This operating instructions manual applies to the following instrument
versions:
•Hardware from 1.0.0
•Software version from 1.0.0
The scope of delivery encompasses:
•Pressure transmitter VEGABAR 82 - Slave sensor
•Ready-made connection cable, unassembled cable gland
•Documentation
– Quick setup guide VEGABAR 82
– Safety Manual (SIL)
– Documentation instrument parameters (default values)
– Documentation order-relating instrument parameters (deviation
from default values)
– Test certicate, pressure transmitters
– Instructions for optional instrument features
– Ex-specic "Safety instructions" (with Ex versions)
– if necessary, further certicates
•DVD "Software & Documents", containing
– Operating instructions
– Safety instructions
– PACTware/DTM-Collection
– Driver software
Information:
In the operating instructions manual, the optional instrument features
are described. The respective scope of delivery results from the order
specication.
3.2 Principle of operation
The VEGABAR 82 slave sensor is combined with a sensor from the
VEGABAR 80 series for electronic dierential pressure measurement.
The sensors are connected via a screened four-wire cable.The
measured value from the slave sensor is read in and factored into the
calculations. Parameter adjustment is carried out through the master
sensor.
To reach the Safety Integrity Level (SIL) for the electronic dierential
pressure, both instruments must be SIL-qualied.
The electronic dierential pressure measurement is suitable for the
measurement of the following process variables:
•Level
•Flow
•Dierential pressure
•Density
Scope of this operating
instructions manual
Scope of delivery
Electronicdierential
pressure
Measured variables

9
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
•Interface
Fig. 2: Electronic dierential pressure measurement through Master/Slave
combination
VEGABAR 82 is suitable for applications in virtually all industries. It is
used for the measurement of the following pressure types.
•Gauge pressure
•Absolute pressure
•Vacuum
Measured products are gases, vapours and liquids.
Depending on the process tting and measurement setup, measured
products can be also viscous or contain abrasive substances.
Sensor element is the CERTEC®measuring cell with robust ceramic
diaphragm. The process pressure deects the ceramic diaphragm
and causes a capacitance change in the measuring cell. This capaci-
tance change is converted into an electrical signal and outputted as
measured value via the output signal.
The CERTEC® measuring cell is available in two sizes:
•ø 17.5 mm with small process ttings
•ø 28 mm with large process ttings and ange connections as well
as pressure measuring range 100 bar
The measuring cell design depends on the selected pressure type.
Relative pressure: the measuring cell is open to atmosphere. The
ambient pressure is detected in the measuring cell and compensated.
It thus has no inuence on the measured value.
Absolute pressure: the measuring cell is evacuated and encapsu-
lated. The ambient pressure is not compensated and does hence
inuence the measured value.
The following presentations show the installation of the CERTEC®
measuring cell into the process tting and the dierent seal concepts.
Application area
Measured products
Measuring system
Pressure types
Seal concepts

10
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1
2
4
5
3
Fig. 3: Recessed installation of the CERTEC® measuring cell
1 Measuring cell
2 Seal for the measuring cell
3 Diaphragm
4 Process tting
5 Seal for the process tting
2
3
4
1
5
Fig. 4: Front-ish mounting of the CERTEC® measuring cell
1 Seal for the process tting
2 Measuring cell
3 Seal for the measuring cell
4 Process tting
5 Diaphragm
Recessed installation
Front-ushmountingwith
single seal

11
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1
2
3
4
5
Fig. 5: Front-ush installation of the CERTEC® measuring cell with double seal
1 Measuring cell
2 Seal for the measuring cell
3 Process tting
4 Additional, front seal for measuring cell
5 Diaphragm
1
2
3
4
5
Fig. 6: Hygienic installation of the CERTEC® measuring cell
1 Measuring cell
2 Form seal for the measuring cell
3 Gap-free seal for process tting
4 Process tting
5 Diaphragm
3.3 Supplementary cleaning procedures
The VEGABAR 82 is also available in the version "Oil, grease and
silicone-free". These instruments have passed through a special
cleaning procedure to remove oil, grease and paint-wetting impair-
ment substances (PWIS).
The cleaning is carried out on all wetted parts as well as on surfaces
accessible from outside. To keep the purity level, the instruments are
immediately packed in plastic foil after the cleaning process. The
purity level remains as long as the instrument is kept in the closed
original packaging.
Caution:
The VEGABAR 82 in this version may not be used in oxygen ap-
plications. For this purpose, instruments of VEGABAR series 80
are available in the special version "Oil and grease-free for oxygen
applications".
Front-ushmountingwith
double seal
Installation in hygienic
tting

12
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
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 in due 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 con-
cealed 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:
•Not in the open
•Dry and dust free
•Not exposed to corrosive media
•Protected against solar radiation
•Avoiding mechanical shock and vibration
•Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
•Relative humidity 20 … 85 %
3.5 Accessories and replacement parts
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
You will nd additional information in the supplementary instructions
manual "Protective cover" (Document-ID 34296).
Screwed anges are available in dierent versions according to the
following standards: DIN 2501, EN 1092-1, BS 10, ANSI B 16.5,
JIS B 2210-1984, GOST 12821-80.
You can nd additional information in the supplementary instructions
manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID
31088).
Welded sockets are used to connect the sensors to the process.
You can nd further information in the supplementary instructions
"Welded socket VEGABAR series 80" (Document-ID 45082).
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
Protective cap
Flanges
Welding socket

13
3 Product description
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
The electronics module VEGABAR series 80 is a replacement part
for pressure transmitters of VEGABAR series 80. There is a dierent
version available for each type of signal output.
You can nd further information in the operating instructions "Elec-
tronics module VEGABAR series 80" (Document-ID 45054).
Electronics module

14
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
4 Mounting
4.1 General instructions for use of the instrument
Make sure that all parts of the instrument exposed to the process are
suitable for the existing process conditions.
These are mainly:
•Active measuring component
•Process tting
•Process seal
Process conditions are particularly:
•Process pressure
•Process temperature
•Chemical properties of the medium
•Abrasion and mechanical inuences
You can nd detailed information on the process conditions in chapter
"Technical data" as well as on the type label.
Protect your instrument against moisture ingress through the following
measures:
•Use the recommended cable (see chapter "Connecting to power
supply")
•Tighten the cable gland
•When mounting horizontally, turn the housing so that the cable
gland points downward
•Loop the connection cable downward in front of the cable gland
This applies particularly to:
•Outdoor mounting
•Installations in areas where high humidity is expected (e.g. through
cleaning processes)
•Installations on cooled or heated vessels
On instruments with process tting thread, the hexagon must be tight-
ened with a suitable screwdriver. Wrench size see chapter "Dimen-
sions".
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
In case of strong vibrations at the mounting location, the instrument
version with external housing should be used. See chapter "External
housing".
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 hous-
ing and connection cable are not exceeded.
Suitability for the process
conditions
Protection against mois-
ture
Screwing in
Vibrations
Temperature limits

15
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1
2
Fig. 7: Temperature ranges
1 Process temperature
2 Ambient temperature
4.2 Ventilation and pressure compensation
Ventilation and pressure compensation are carried out with VE-
GABAR 82 via a lter element. It is air permeable and moisture-
blocking.
Caution:
The lter element causes a time-delayed pressure compensation.
When quickly opening/closing the housing cover, the measured value
can change for approx. 5 s by up to 15 mbar.
For eective ventilation, the lter element must always be free of
buildup.
Caution:
Do not use a high-pressure cleaner. The lter element could be dam-
aged, which would allow moisture into the housing.
The following paragraphs describe how the lter element is arranged
in the dierent instrument versions.
The lter element is mounted into the electronics housing. It has the
following functions:
•Ventilation of the electronics housing
•Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
→ Turn the housing so that the lter element points downward after
the instrument is installed. This provides better protection against
buildup.
Filter elements
Instruments in non-Ex
and Ex-ia version

16
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1 2 3
4 4 4
Fig. 8: Position of the lter element - non-Ex, Ex-ia version
1 Housing plastic, stainless steel precision casting
2 Housing aluminium
3 Housing stainless steel, electropolished
4 Filter element
With the following instruments a blind plug is installed instead of the
lter element:
•Instruments in protection IP 66/IP 68 (1 bar) - ventilation via capil-
laries in non-detachable cable
•Instruments with absolute pressure
The lter element is integrated in the process assembly. It is located in
a rotatable metal ring and has the following functions:
•Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
→ Turn the metal ring in such a way that the lter element points
downward after installtion of the instrument. This provides better
protection against buildup.
1
2
Fig. 9: Position of the lter element - Ex-d version
1 Rotatable metal ring
2 Filter element
With absolute pressure measuring ranges, a blind plug is used
instead of the lter element.
The lter element is mounted into the electronics housing. It has the
following functions:
•Ventilation of the electronics housing
→ Turn the housing so that the lter element points downward after
the instrument is installed. This provides better protection against
buildup.
Instruments in Ex-d ver-
sion
Instruments with Second
Line of Defense

17
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
The process assembly of instruments with Second Line of Defense
(gastight leadthrough) is completely encapsulated. An absolute pres-
sure measuring cell is used so that no ventilation is required.
1
1
Fig. 10: Position of the lter element - gastight leadthrough
1 Filter element
The lter element is mounted into the electronics housing. It has the
following functions:
•Ventilation of the electronics housing
•Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
→ Turn the housing so that the lter element points downward after
the instrument is installed. This provides better protection against
buildup.
1
Fig. 11: Position of the lter element - IP 69K version
1 Filter element
Instruments with absolute pressure have a blind plug mounted
instead of the lter element.
4.3 Combination Master - Slave
In principle, any sensor combination within the VEGABAR 80 series is
allowed. The following requirements must be fullled:
•Conguration, Master sensor suitable for electronic dierential
pressure
•Pressure type is identical for both sensors, i.e. relative pressure/
relative pressure or absolute pressure/absolute pressure
•Master sensor measures the higher pressure
•Measurement setup as shown in the following chapters
Instruments in IP 69K
version

18
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
The measuring range of each sensor is selected so that it ts the
measuring point. The measuring ranges of master and slave do not
necessarily have to be the same. The adjustment range corresponds
to that of the master. Note the recommended max. turn down. See
chapter "Technical data".
Depending on the application, individual combinations can result, see
following table with examples:
Examples Vessel with
height 12 m, me-
dium water
Static pressure
1 bar
Vessel with level
250 mm, medi-
um water
Static pressure
350 mbar
Pipeline, static
pressure 0.8 bar,
medium gas
Dierential
pressure at the
orice:50mbar
Nominal meas-
uring range,
Master
2.5 bar 0.4 bar 1 bar
Nominal meas-
uring range,
Slave
1 bar 0.4 bar 1 bar
Adjustment
range
-1 … +3 bar -0.48 … +0.48 bar -1.2 … +1.2 bar
Turn Down (TD) 2.1 : 1 16,3 : 1 20 : 1
Measurement result = Measured value of Master (total pres-
sure) minus measured value of Slave (static pressure)
Output through the analogue current output 4 … 20 mA:
•Measurement result or
•Measured value Slave
Output as HART variables:
•Measurement result and
•Measured value Slave
To reach the Safety Integrity Level (SIL) for the electronic dierential
pressure, both instruments must be SIL-qualied.
4.4 Level measurement
The master/slave combination is suitable for level measurement in a
pressurized vessel
Keep the following in mind when setting up the measuring system:
•Mount the master sensor below the min. level
•Do not mount the master sensor close to the lling stream or
emptying area
•Mount the master sensor so that it is protected against pressure
shocks from the stirrer
•Mount the slave sensor above the max. level
Measurement setup

19
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1
2
Fig. 12: Measurement setup, level measurement in pressurized vessel
1 VEGABAR 82
2 VEGABAR 82 - Slave sensor
4.5 Dierentialpressuremeasurement
The master/slave combination is suitable for dierential pressure
measurement
Take note of the following instructions for the measurement setup, for
example in gases:
•Mount the instruments above the measuring point
Possible condensation can then drain o into the process line.
Measurement setup

20
4 Mounting
VEGABAR 82 • Slave sensor for electronic dierential pressure
48046-EN-140702
1
2
Fig. 13: Measurement setup for dierential pressure measurement of gases in
pipelines
1 VEGABAR 82
2 VEGABAR 82 - Slave sensor
4.6 Interface measurement
The master/slave combination is suitable for interface measurement
Requirements for a functioning measurement are:
•Vessel with changing level
•Products with steady densities
•Interface always between the measurement points
•Total level always above the upper measurement point
Measurement setup