Vega VEGABAR 81 User manual

Operating Instructions
Pressure transmitter with chemical seal
VEGABAR 81
Probus PA
Document ID: 45020

2
Contents
VEGABAR 81 • Probus PA
45020-EN-140710
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 NAMUR recommendations .............................................................................................. 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.............................................................................. 10
3.4 Packaging, transport and storage................................................................................... 10
3.5 Accessories and replacement parts ............................................................................... 11
4 Mounting
4.1 General instructions for use of the instrument ................................................................ 13
4.2 Ventilation and pressure compensation.......................................................................... 14
4.3 Process pressure measurement..................................................................................... 16
4.4 Level measurement........................................................................................................ 18
4.5 External housing ............................................................................................................ 19
5 Connecting to the bus system
5.1 Preparing the connection ............................................................................................... 20
5.2 Connecting..................................................................................................................... 21
5.3 Single chamber housing................................................................................................. 22
5.4 Double chamber housing ............................................................................................... 23
5.5 Double chamber housing Ex d ....................................................................................... 24
5.6 Double chamber housing with DIS-ADAPT .................................................................... 25
5.7 Housing IP 66/IP 68 (1 bar) ............................................................................................ 26
5.8 External housing with version IP 68 (25 bar)................................................................... 27
5.9 Switch-on phase............................................................................................................. 28
6 Set up with the display and adjustment module
6.1 Insert display and adjustment module............................................................................ 30
6.2 Adjustment system......................................................................................................... 31
6.3 Measured value indication.............................................................................................. 32
6.4 Parameter adjustment - Quick setup .............................................................................. 33
6.5 Parameter adjustment - Extended adjustment................................................................ 34
6.6 Saving the parameter adjustment data........................................................................... 47
7 Setup with PACTware
7.1 Connect the PC.............................................................................................................. 49
7.2 Parameter adjustment .................................................................................................... 49
7.3 Saving the parameter adjustment data........................................................................... 50

3
Contents
VEGABAR 81 • Probus PA
45020-EN-140710
8 Set up with other systems
8.1 DD adjustment programs ............................................................................................... 51
9 Diagnosis, asset management and service
9.1 Maintenance .................................................................................................................. 52
9.2 Diagnosis memory ......................................................................................................... 52
9.3 Asset Management function........................................................................................... 53
9.4 Rectify faults................................................................................................................... 56
9.5 Exchanging the electronics module................................................................................ 56
9.6 Exchange process assembly with version IP 68 (25 bar)................................................ 57
9.7 Software update ............................................................................................................. 58
9.8 How to proceed if a repair is needed.............................................................................. 59
10 Dismount
10.1 Dismounting steps.......................................................................................................... 60
10.2 Disposal ......................................................................................................................... 60
11 Supplement
11.1 Technical data ................................................................................................................ 61
11.2 Communication Probus PA........................................................................................... 70
11.3 Dimensions .................................................................................................................... 73
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:2014-07-01

4
1 About this document
VEGABAR 81 • Probus PA
45020-EN-140710
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 81 • Probus PA
45020-EN-140710
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
The VEGABAR 81 is a pressure transmitter for process pressure and
hydrostatic level 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 81 • Probus PA
45020-EN-140710
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 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
accepted as the standard in eld instrumentation.
The device fullls the requirements of the following NAMUR recom-
mendations:
•NE 21 – Electromagnetic compatibility of equipment
•NE 53 – Compatibility of eld devices and display/adjustment
components
•NE 107 – Self-monitoring and diagnosis of eld devices
For further information see www.namur.de.
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 81 • Probus PA
45020-EN-140710
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 81 • Probus PA
45020-EN-140710
•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
•Documentation
– Quick setup guide VEGABAR 81
– 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 81 is suitable for the measurement of the following
process variables:
•Process pressure
•Level
Fig. 2: Process pressure measurement VEGABAR 81
Scope of this operating
instructions manual
Scope of delivery
Measured variables

9
3 Product description
VEGABAR 81 • Probus PA
45020-EN-140710
In combination with a slave sensor, VEGABAR 81 is also suitable for
electronic dierential pressure measurement.
You can nd detailed information in the operating instructions of the
respective slave sensor.
VEGABAR 81 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.
The chemical seal systems of VEGABAR 81, which are optimally
adapted to the process, also allow measurement of highly corrosive
and hot products.
The process pressure acts on the sensor element via the stainless
steel diaphragm and an internal transmission liquid. The process
pressure causes a resistance change which is converted into a cor-
responding 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 piezoresistive measuring cell
1 Sensor element
2 Base element
3 Silicone oil lling
4 Diaphragm
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.
Electronicdierential
pressure
Application area
Measured products
Measuring system
Pressure types
Seal concept

10
3 Product description
VEGABAR 81 • Probus PA
45020-EN-140710
3.3 Supplementary cleaning procedures
The VEGABAR 81 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 81 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".
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 %
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature

11
3 Product description
VEGABAR 81 • Probus PA
45020-EN-140710
3.5 Accessories and replacement parts
The display and adjustment module PLICSCOM is used for measured
value indication, adjustment and diagnosis. It can be inserted into the
sensor or the external display and adjustment unit and removed at
any time.
You can nd further information in the operating instructions "Display
and adjustment module PLICSCOM" (Document-ID 27835).
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
parameter adjustment of these instruments, the adjustment software
PACTware with VEGA-DTM is required.
You can nd further information in the operating instructions "Interface
adapter VEGACONNECT" (Document-ID 32628).
Slave sensors of VEGABAR series 80 enable in conjunction with
VEGABAR 81 an electronic dierential pressure measurement.
You can nd further information in the operating instructions of the
respective slave sensor.
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
For sensors with double chamber housing the interface adapter "DIS-
ADAPT" is also required for VEGADIS 81.
You can nd further information in the operating instructions "VE-
GADIS 81" (Document-ID 43814).
The adapter "DIS-ADAPT" is an accessory part for sensors with
double chamber housings. It enables the connection of VEGADIS 81
to the sensor housing via an M12 x 1 plug.
You can nd further information in the supplementary instructions
"Adapter DISADAPT" (Document-ID 45250).
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).
PLICSCOM
VEGACONNECT
Slave sensors
VEGADIS 81
DIS-ADAPT
Protective cap
Flanges
Welding socket

12
3 Product description
VEGABAR 81 • Probus PA
45020-EN-140710
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).
The supplementary electronics is a replacement part for sensors with
Probus PA and double chamber housing.
You can nd further information in the operating instructions "Supple-
mentary electronics for Probus PA" (Document-ID 42767).
Electronics module
Supplementary electron-
icsProbusPA

13
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
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 wrench. For the proper 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.
If there is strong vibration 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

14
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
1
2
Fig. 4: Temperature ranges
1 Process temperature
2 Ambient temperature
4.2 Ventilation and pressure compensation
Ventilation and pressure compensation are carried out with VE-
GABAR 81 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

15
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
1 2 3
4 4 4
Fig. 5: 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 function:
•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.
21
3
4
3
4
Fig. 6: Position of the lter element - Ex-d version
1 Single chamber housing, aluminium, stainless steel precision casting
2 Double chamber housing, aluminium, stainless steel precision casting
3 Rotatable metal ring
4 Filter element
Instruments with absolute pressure have a blind plug mounted
instead of the lter element.
Instruments in Ex-d ver-
sion

16
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
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. 7: 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 Process pressure measurement
Keep the following in mind when setting up the measuring system:
•Mount the instrument above the measuring point
Possible condensation can then drain o into the process line.
1
2
3
Fig. 8: Measurement setup for process pressure measurement of gases in
pipelines
1 VEGABAR 81
2 Blocking valve
3 Pipeline
Keep the following in mind when setting up the measuring system:
•Connect via a siphon
•Do not insulate the siphon
•Fill the siphon with water before setup
Instruments in IP 69K
version
Measurement setup in
gases
Measurement setup in
vapours

17
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
1
4
3
2
1
2
3
4
Fig. 9: Measurement setup with process pressure measurement of gases in
pipelines
1 VEGABAR 81
2 Blocking valve
3 Siphon in U or circular form
4 Pipeline
A protective accumulation of water is formed through condensation
in the pipe bends. Even in applications with hot steam, a medium
temperature < 100 °C on the transmitter is ensured.
Keep the following in mind when setting up the measuring system:
•Mount the instrument below the measuring point
The eective pressure line is always lled with liquid and gas bubbles
can bubble up to the process line.
Measurement setup in
liquids

18
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
3
1
2
Fig. 10: Measurement setup for process pressure measurement of liquids in
pipelines
1 VEGABAR 81
2 Blocking valve
3 Pipeline
4.4 Level measurement
Keep the following in mind when setting up the measuring system:
•Mount the instrument below the min. level
•Do not mount the instrument close to the lling stream or emptying
area
•Mount the instrument so that it is protected against pressure
shocks from the stirrer
Fig. 11: Measurement setup for level measurement
Measurement setup

19
4 Mounting
VEGABAR 81 • Probus PA
45020-EN-140710
4.5 External housing
1
2
3
4
5
Fig. 12: Setup process assembly, external housing
1 Pipeline
2 Process assembly
3 Connection cable process assembly - External housing
4 External housing
5 Signal cable
1. Mark the holes according to the following drilling template
2. Fasten wall mounting plate with 4 screws
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. 13: Drilling template - wall mounting plate
Conguration
Mounting

20
5 Connecting to the bus system
VEGABAR 81 • Probus PA
45020-EN-140710
5 Connecting to the bus system
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
•The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
•Generally connect the instrument that connecting and disconnect-
ing is possible in idle state.
•If overvoltage surges are expected, overvoltage arresters should
be installed.
The voltage supply is provided by a Probus DP /PA segment coupler.
The voltage supply range can dier depending on the instrument
version. You can nd the data for voltage supply in chapter "Technical
data".
Connection is made with screened cable according to the Probus
specication. Power supply and digital bus signal are carried over the
same two-wire connection cable.
Use cable with round cross section for instruments with housing and
cable gland. To ensure the seal eect of the cable gland (IP protection
rating), nd out which cable outer diameter the cable gland is suitable
for.
Use a cable gland tting the cable diameter.
Please make sure that your installation is carried out according to the
Probus specication. In particular, make sure that the termination of
the bus is done with appropriate terminating resistors.
You can nd detailed information of the cable specication, installa-
tion and topology in the "Probus PA - User and Installation Guide-
line" on www.probus.com.
With plastic housing, the NPT cable gland or the Conduit steel tube
must be screwed without grease into the threaded insert.
Max. torque for all housings see chapter "Technical data".
Make sure that cable screening and grounding is carried out accord-
ing to the Fieldbus specication. If electromagnetic interference is
expected which is above the test values of EN 61326-1 for industrial
areas, we recommend connecting the cable screen to ground poten-
tial at both ends.
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).
Safety instructions
Voltage supply
Connection cable
Cable gland ½ NPT
Cable screening and
grounding