VEGA BAR86 User Manual
Operating Instructions
Pressure transmitter with ceramic
measuring cell
VEGABAR 86
Slave sensor for electronic differential pressure
Document ID: 45052
Contents
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbolism 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 Measuring range - permissible process pressure ............................................................. 6
2.7 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration .................................................................................................................... 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 to use the instrument ..................................................................... 12
4.2 Ventilation and pressure compensation .......................................................................... 13
4.3 Combination Master - Slave ........................................................................................... 14
4.4 Dierential pressure measurement ................................................................................ 15
4.5 Interface measurement .................................................................................................. 15
4.6 Density measurement .................................................................................................... 16
4.7 External housing ............................................................................................................ 18
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 19
5.2 Connecting ..................................................................................................................... 19
5.3 Single chamber housing ................................................................................................. 20
5.4 External housing with version IP 68 (25 bar)................................................................... 21
5.5 Connection example ...................................................................................................... 23
6 Set up with the display and adjustment module
6.1 Parameter adjustment - Quick setup .............................................................................. 24
6.2 Parameter adjustment - Extended adjustment................................................................ 27
7 Diagnosis, asset management and service
7.1 Maintenance .................................................................................................................. 37
7.2 Rectify faults ................................................................................................................... 37
7.3 Exchanging the electronics module ................................................................................ 37
7.4 Exchange process assembly with version IP 68 (25 bar) ................................................ 37
7.5 How to proceed in case of repair .................................................................................... 39
8 Dismounting
8.1 Dismounting steps.......................................................................................................... 40
8.2 Disposal ......................................................................................................................... 40
9 Supplement
9.1 Technical data ................................................................................................................ 41
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VEGABAR 86 • Slave sensor for electronic dierential pressure
Contents
9.2 Dimensions .................................................................................................................... 47
Safety instructions for Ex areas
Please note the Ex-specic 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.
45052-EN-131011
Editing status: 2013-10-09
VEGABAR 86 • Slave sensor for electronic dierential pressure
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1 About this document
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 instructions for maintenance and fault rectication. Please read this information 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 Symbolism 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 batteries and accumulators.
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VEGABAR 86 • Slave sensor for electronic dierential pressure
2 For your safety
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 86 is a slave sensor for electronic dierential pressure
measurement.
You can nd detailed information on the application range in chapter
"Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specications 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-specic hazards, e.g. vessel overll 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 standard regulations and guidelines. The user must take note of the safety
instructions in this operating instructions manual, the country-specic
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 regulations.
2.5 CE conformity
The device fullls the legal requirements of the applicable EC guidelines. By axing the CE marking, we conrm successful testing of the
product.
You can nd the CE Certicate of Conformity in the download section
of our homepage.
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VEGABAR 86 • Slave sensor for electronic dierential pressure
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2 For your safety
2.6 Measuring range - permissible process pressure
The permissible process pressure is specied on the type label with
"process pressure", see chapter "Conguration". For safety reasons,
this range must not be exceeded. This applies also if a measuring
cell with higher measuring range (order-related) 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 protection. The environment management system is certied according
to DIN EN ISO 14001.
Please help us fulll this obligation by observing the environmental
instructions in this manual:
Chapter "Packaging, transport and storage"
•
Chapter "Disposal"
•
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VEGABAR 86 • Slave sensor for electronic dierential pressure
Type plate
3 Product description
3 Product description
3.1 Conguration
The nameplate contains the most important data for identication and
use of the instrument:
1
2
3
4
5
6
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 Symbol of the device protection class
13 ID numbers, instrument documentation
14 Reminder to observe the instrument documentation
15 Notied authority for CE marking
16 Approval directive
16
15
14
13
12
11
Serial number
45052-EN-131011
VEGABAR 86 • Slave sensor for electronic dierential pressure
The type label contains the serial number of the instrument. With it
you can nd the following data on our homepage:
Product code of the instrument (HTML)
•
Delivery date (HTML)
•
Order-specic instrument features (HTML)
•
Operating instructions at the time of shipment (PDF)
•
Order-specic sensor data for an electronics exchange (XML)
•
Test certicate pressure transmitters (PDF)
•
Go to www.vega.com, "VEGA Tools" and "Serial number search".
As an alternative, you can nd the data via your Smartphone:
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
•
7
3 Product description
Scope of this operating
instructions manual
Scope of delivery
Electronicdierential
pressure measurement
Measured variables
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:
VEGABAR 86 pressure transmitter
•
Connection cable to the master sensor
•
Cable gland for the master sensor
•
Documentation
•
– this operating instructions manual
– Test certicate measuring accuracy (optional)
– Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors" (optional)
– Ex-specic "Safety instructions" (with Ex versions)
– if necessary, further certicates
3.2 Principle of operation
The VEGABAR 86 slave sensor is combined with a sensor from the
VEGABAR 80 series for electronic dierential 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 dierential pressure measurement is suitable for the measurement of the following process variables:
Level
•
Flow
•
Dierential pressure
•
Density
•
Interface
•
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VEGABAR 86 • Slave sensor for electronic dierential pressure
3 Product description
Fig. 2: Electronic level dierence measurement through Master/Slave combination
Electronicdierential
pressure measurement
The VEGABAR 86 slave sensor is combined with a sensor from the
VEGABAR 80 series for electronic dierential 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.
Application area
The VEGABAR 86 is a suspension pressure transmitter for level
measurement in wells, basins and open vessels. Its great exibility
through dierent cable and tube versions allows the instrument to be
used in many dierent applications.
Measured products
Measured products are liquids.
Depending on the instrument version and measurement setup, meas-
ured products can be also viscous or contain abrasive substances.
Measuring system
Sensor element is the CERTEC® measuring cell with robust ceramic
diaphragm. The process pressure deects the ceramic diaphragm
and causes a capacitance change in the measuring cell. This capacitance change is converted into an electrical signal and outputted as
measured value via the output signal.
Pressure types
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 inuence on the measured value.
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3 Product description
Absolute pressure: the measuring cell is evacuated and encapsulated. The ambient pressure is not compensated and does hence
inuence the measured value.
Relative pressure, climate-compensated: the measuring cell is
evacuated and encapsulated. The ambient pressure is detected
through a reference sensor in the electronics and compensated. It
thus has no inuence on the measured value.
Seal concept
Packaging
Transport
The following illustration shows the installation of the CERTEC®
measuring cell in the transmitter as well as the sealing concept.
1
2
3
4
5
Fig. 3: Front-ush installation of the CERTEC® measuring cell with double seal
1 Housing, transmitter
2 Measuring cell
3 Lateral seal for measuring cell
4 Additional, front seal for measuring cell
5 Diaphragm
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 environmentfriendly, 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.
Transport inspection
Storage
10
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or concealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
Not in the open
•
Dry and dust free
•
VEGABAR 86 • Slave sensor for electronic dierential pressure
45052-EN-131011
Storage and transport
temperature
Protective cap
3 Product description
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).
Flanges
Welded socket
Electronics module
Screwed anges are available in dierent 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 dierent
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).
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VEGABAR 86 • Slave sensor for electronic dierential pressure
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4 Mounting
Suitability for the process
conditions
4 Mounting
4.1 General instructions to use 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 inuences
•
You can nd the specications of the process conditions in chapter
"Technical data" as well as on the nameplate.
Protection against moisture
Screwing in
Vibrations
Temperature limits
Protect your instrument further through the following measures
against moisture penetration:
Use the recommended cable (see chapter "Connecting to power
•
supply")
Tighten the cable gland
•
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 tightened 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.
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VEGABAR 86 • Slave sensor for electronic dierential pressure
Filter elements
4 Mounting
2
1
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 86 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 eective ventilation, the lter element must always be free of
buildup.
Caution:
Do not use a high-pressure cleaner. The lter element could be damaged, which would allow moisture into the housing.
The following paragraphs describe how the lter element is arranged
in the dierent instrument versions.
Instruments in non-Ex
and Ex-ia version
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VEGABAR 86 • Slave sensor for electronic dierential pressure
The lter element is mounted into the electronics housing. It has the
following functions:
Ventilation electronics housing
•
Atmospheric pressure compensation (with relative pressure meas-
•
uring ranges)
13
4 Mounting
4 4 4
1 2 3
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 x connected cable
Instruments with absolut pressure
•
Instruments in IP 69K
version
The lter element is mounted into the electronics housing. It has the
following functions:
Ventilation electronics housing
•
Atmospheric pressure compensation (with relative pressure meas-
•
uring ranges)
1
Fig. 6: 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 fullled:
Conguration, Master sensor suitable for electronic dierential
•
pressure
Pressure type is identical for both sensors, i.e. relative pressure/
•
relative pressure or absolute pressure/absolute pressure
The master sensor must always measure the higher pressure
•
Measurement setup as shown in the following chapters
•
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VEGABAR 86 • Slave sensor for electronic dierential pressure
Measurement setup
4 Mounting
4.4 Dierentialpressuremeasurement
With the Master/Slave combination, a gauge dierent measurement
can be realized.
Measurement setup
1
Fig. 7: Measurement setup with a level dierence measurement
2
3
4.5 Interface measurement
With the Master/Slave combination also an interface measurement
can be realised.
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
•
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VEGABAR 86 • Slave sensor for electronic dierential pressure
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4 Mounting
Measurement setup
1
Fig. 8: Measurement setup with interface measurement, h = distance between
the two measuring points
1 VEGABAR 86
2 VEGABAR 86 - Slave sensor
The interface measurement is possible in open as well as in closed
vessels.
2
0,8
1,0
h
4.6 Density measurement
With the Master/Slave combination also a density measurement can
be realised.
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
•
16
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VEGABAR 86 • Slave sensor for electronic dierential pressure
4 Mounting
1
Fig. 9: Measurement setup with density measurement, h = distance between
the two measuring points
1 VEGABAR 86
2 VEGABAR 86 - Slave sensor
2
h
Density measurement is possible in open as well as in closed vessels. Small changes in the density cause only small changes in the
measured dierential pressure. So a suitable measuring range has to
be selected.
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4 Mounting
Conguration
Mounting
4.7 External housing
1
2
3
4
Fig. 10: Arrangement measurement loop, external housing
1 Vessel
2 Sensor
3 Connection cable sensor - 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")
70 mm
(2.76")
3mm
(0.12")
8 mm
(0.32")
18
R 3,5 mm
(0.14")
(3.66")
(4.33")
93 mm
110 mm
Fig. 11: Drilling template - wall mounting plate
VEGABAR 86 • Slave sensor for electronic dierential pressure
45052-EN-131011
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