Vega VEGABAR 83 User manual

Operating Instructions
Pressure transmitter with metallic
measuring cell
VEGABAR 83
Slave sensor for electronic differential pres-
sure
Document ID: 45051

2
Contents
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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 Permissible process pressure .......................................................................................... 5
2.7 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage................................................................................... 10
3.4 Accessories and replacement parts ............................................................................... 11
4 Mounting
4.1 General instructions for use of the instrument ................................................................ 12
4.2 Ventilation and pressure compensation.......................................................................... 13
4.3 Combination Master - Slave ........................................................................................... 15
4.4 Level measurement........................................................................................................ 16
4.5 Dierential pressure measurement ................................................................................ 17
4.6 Interface measurement .................................................................................................. 18
4.7 Density measurement .................................................................................................... 19
4.8 External housing ............................................................................................................ 21
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 22
5.2 Connecting..................................................................................................................... 22
5.3 Single chamber housing................................................................................................. 23
5.4 External housing with version IP 68 (25 bar)................................................................... 24
5.5 Connection example ...................................................................................................... 26
6 Set up with the display and adjustment module
6.1 Parameter adjustment - Quick setup .............................................................................. 27
6.2 Parameter adjustment - Extended adjustment................................................................ 30
7 Diagnosis, asset management and service
7.1 Maintenance .................................................................................................................. 40
7.2 Rectify faults................................................................................................................... 40
7.3 Exchange process assembly with version IP 68 (25 bar)................................................ 40
7.4 Exchanging the electronics module................................................................................ 41
7.5 How to proceed if a repair is needed .............................................................................. 42
8 Dismounting
8.1 Dismounting steps.......................................................................................................... 43
8.2 Disposal ......................................................................................................................... 43
9 Supplement

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Contents
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
9.1 Technical data ................................................................................................................ 44
9.2 Dimensions .................................................................................................................... 54
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: 2014-02-11

4
1 About this document
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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 83 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 Permissible process pressure
The permissible process pressure is specied on the type label with
"Process pressure", see chapter "Conguration". For safety reasons,

6
2 For your safety
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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.
2.7 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 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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
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 and quick setup guide at the time of ship-
ment (PDF)
•Order-specic sensor data for an electronics exchange (XML)
•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 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
•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 83 - Slave sensor
•Ready-made connection cable, unassembled cable gland
•Documentation
– Quick setup guide VEGABAR 83
– Test certicate measuring accuracy (optional)
– Ex-specic "Safety instructions" (with Ex versions)
– if necessary, further certicates
Information:
In this 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 83 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.
The electronic dierential pressure measurement is suitable for the
measurement of the following process variables:
•Level
•Flow
•Dierential pressure
•Density
•Interface
Scope of this operating
instructions manual
Scope of delivery
Electronicdierential
pressure measurement
Measured variables

9
3 Product description
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
Fig. 2: Electronic dierential pressure measurement through Master/Slave
combination
VEGABAR 83 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.
VEGABAR 83 is especially suitable for applications with higher tem-
peratures and high pressures.
The process pressure acts on the sensor element via the process
diaphragm and an internal transmission liquid. The process pressure
causes a resistance change which is converted into a corresponding
output signal and outputted as measured value.
Measuring ranges up to 16 bar: piezoresistive sensor element, meas-
uring ranges up to 25 bar: strain gauge (DMS) sensor element.
1
3 4
2
Fig. 3: Conguration of the measuring system with piezoresistive sensor ele-
ment
1 Sensor element
2 Base element
3 Transmission liquid
4 Process diaphragm
With small measuring ranges or higher temperatures, the METEC®
measuring cell is the measuring unit. It consists of the ceramic-capac-
itive CERTEC® measuring cell and a special, temperature-compen-
sated chemical seal system.
Application area
Measured products
Measuring system

10
3 Product description
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
4321
Fig. 4: Conguration of the METEC® measuring cell
1 Process diaphragm
2 Isolating liquid
3 FeNi adapter
4 CERTEC® measuring cell
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 measuring system is completely welded and hence sealed
against the process. The sealing of the process tting against the
process is carried out by a seal provided on site.
3.3 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.
Pressure types
Seal concept
Packaging
Transport
Transport inspection
Storage

11
3 Product description
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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 %
3.4 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).
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).
Storage and transport
temperature
Protective cap
Flanges
Welding socket
Electronics module

12
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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 the specications of the process conditions in chapter
"Technical data" as well as on the type label.
Protect your instrument against moisture penetration through the fol-
lowing measures:
•Use the recommended cable (see chapter "Connecting to power
supply")
•Tighten the cable gland
•Turn the housing in such a way that the cable gland points down-
ward
•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

13
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
1
2
Fig. 5: Temperature ranges
1 Process temperature
2 Ambient temperature
4.2 Ventilation and pressure compensation
Ventilation and pressure compensation are carried out with VE-
GABAR 83 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

14
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
1 2 3
4 4 4
Fig. 6: 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. 7: 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

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4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
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. 8: 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. 9: 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

16
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
The measuring range of each sensor is selected to t the measuring
point. Hence the measuring ranges of master and slave do not have
to coincide exactly.
Depending on the application, individual combinations can result, see
following table with examples:
Examples Vessel with
height 12 m, me-
dium water
Superimposed
pressure 1 bar
Vessel with level
250 mm, medi-
um water
Superim-
posed 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) 1.15 : 1 14 : 1 20 : 1
The adjustment range corresponds to that of the Master. Note the
max. recommended Turn Down. See chapter "Technical data".
Measuring result = Measured value Master minus measured
value Slave
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

17
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
1
2
Fig. 10: Measurement setup, level measurement in pressurized vessel
1 VEGABAR 83
2 VEGABAR 83 - 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

18
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
1
2
Fig. 11: Measurement setup for dierential pressure measurement of gases in
pipelines
1 VEGABAR 83
2 VEGABAR 83 - 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

19
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
h
1,0
0,8
1
2
Fig. 12: Measurement setup with interface measurement, h = distance between
the two measuring points
1 VEGABAR 83
2 VEGABAR 83 - Slave sensor
The interface measurement is possible in open as well as in closed
vessels.
4.7 Density measurement
The master/slave combination is suitable for density measurement.
Requirements for a functioning measurement are:
•Vessel with changing level
•Product with consistent density
•Distance between the measurement points as large as possible
•Level always above the upper measuring point
Measurement setup

20
4 Mounting
VEGABAR 83 • Slave sensor for electronic dierential pressure
45051-EN-140228
h
1
2
Fig. 13: Measurement setup for density measurement, h = distance between the
two measuring points
1 VEGABAR 83
2 VEGABAR 83 - Slave sensor
Density measurement is possible in open as well as in closed ves-
sels. Small changes in the density cause only small changes in the
measured dierential pressure. So a suitable measuring range has to
be selected.