Vega VEGABAR 87 Manuale utente
Operating Instructions
Pressure transmitter with metallic
measuring cell
VEGABAR 87
Slave sensor for electronic dierential pres-
sure
Document ID: 45053
2
Contents
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
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 EU conformity................................................................................................................... 5
2.6 Installation and operation in the USA and Canada ........................................................... 6
2.7 Environmental instructions ............................................................................................... 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage................................................................................... 11
3.4 Accessories.................................................................................................................... 11
4 Mounting................................................................................................................................. 12
4.1 General instructions ....................................................................................................... 12
4.2 Ventilation and pressure compensation.......................................................................... 14
4.3 Combination Master - Slave ........................................................................................... 16
4.4 Dierential pressure measurement ................................................................................ 17
4.5 Interface measurement .................................................................................................. 17
4.6 Density measurement .................................................................................................... 18
4.7 Density-compensated level measurement ..................................................................... 19
4.8 External housing ............................................................................................................ 21
5 Connecting to power supply................................................................................................. 22
5.1 Preparing the connection ............................................................................................... 22
5.2 Connecting..................................................................................................................... 22
5.3 Single chamber housing................................................................................................. 24
5.4 External housing with version IP68 (25 bar) ................................................................... 25
5.5 Connection example ...................................................................................................... 27
6 Set up with the display and adjustment module ................................................................ 28
6.1 Parameter adjustment .................................................................................................... 28
7 Diagnosis, asset management and service ........................................................................ 41
7.1 Maintenance .................................................................................................................. 41
7.2 Rectify faults................................................................................................................... 41
7.3 Exchanging the electronics module................................................................................ 41
7.4 Exchange process module on version IP68 (25 bar) ...................................................... 42
7.5 How to proceed if a repair is necessary.......................................................................... 43
8 Dismount................................................................................................................................. 44
8.1 Dismounting steps.......................................................................................................... 44
8.2 Disposal ......................................................................................................................... 44
9 Supplement ............................................................................................................................ 45
9.1 Technical data ................................................................................................................ 45
3
Contents
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
9.2 Calculation of the total deviation..................................................................................... 52
9.3 Practical example........................................................................................................... 53
9.4 Dimensions .................................................................................................................... 55
9.5 Industrial property rights................................................................................................. 61
9.6 Trademark ...................................................................................................................... 61
Safety instructions for Ex areas
Take note of the Ex specic safety instructions for Ex applications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2020-05-12
4
1 About this document
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance, fault rectication, the exchange of parts and the safety of the
user. 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 personnel.
The contents of this manual must be made available to the qualied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
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 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualied 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 87 is a slave sensor for electronic dierential 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 specications in the operating instructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specic hazards, e.g. vessel overll through incorrect mounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in a
technically awless and reliable condition. The operator is responsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
trary conversions or modications are explicitly forbidden. For safety
reasons, only the accessory specied by the manufacturer must be
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
2.5 EU conformity
The device fulls the legal requirements of the applicable EU direc-
tives. By axing the CE marking, we conrm the conformity of the
instrument with these directives.
6
2 For your safety
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
The EU conformity declaration can be found on our homepage.
2.6 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
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 certied according
to DIN EN ISO 14001.
Please help us full this obligation by observing the environmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"
7
3 Product description
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Pressure transmitter VEGABAR 87 - Slave sensor
• Ready-made connection cable, unassembled cable gland
The further scope of delivery encompasses:
• Documentation
– Quick setup guide VEGABAR 87
– Test certicate for pressure transmitters
– Instructions for optional instrument features
– Ex-specic "Safety instructions" (with Ex versions)
– If necessary, further certicates
Information:
Optional instrument features are also described in this operating
instructions manual. The respective scope of delivery results from the
order specication.
This operating instructions manual applies to the following instrument
versions:
• Hardware from 1.0.0
• Software version from 1.0.0
Note:
You can nd the hardware and software version of the instrument as
follows:
• On the type plate of the electronics module
• In the adjustment menu under "Info"
The type label contains the most important data for identication and
use of the instrument:
7
6
4
5
2
3
1
Fig. 1: Layout of the type label (example)
1 Product code
2 Field for approvals
3 Technical data
4 Serial number of the instrument
5 QR code
6 Symbol of the device protection class
7 ID numbers, instrument documentation
Scope of delivery
Scope of this operating
instructions
Type label
8
3 Product description
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
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-specic instrument features (HTML)
• Operating instructions and quick setup guide at the time of ship-
ment (PDF)
• Order-specic sensor data for an electronics exchange (XML)
• Test certicate (PDF) - optional
Move to "www.vega.com" and enter in the search eld the serial
number of your instrument.
Alternatively, you can access the data via your smartphone:
• Download the VEGA Tools app from the "Apple App Store" or the
"Google Play Store"
• Scan the DataMatrix code on the type label of the instrument or
• Enter the serial number manually in the app
3.2 Principle of operation
The VEGABAR 87 is a pressure transmitter for pressure and level
measurements of liquids with higher temperatures in the chemical,
food processing and pharmaceutical industry.
Measured products are liquids.
Depending on the instrument version and the measurement setup,
the measured products can be also viscous.
The dierential pressure measurement is suitable for the measure-
ment of the following process variables:
• Level
• Flow
• Dierential pressure
• Density
• Interface
The VEGABAR 87 slave sensor is combined with a sensor from the
VEGABAR 80 series for electronic dierential pressure measurement.
Serial number - Instru-
ment search
Application area
Measured products
Measured variables
Electronicdierential
pressure
9
3 Product description
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
2
1
Fig. 2: Example, electronic dierential pressure for interface measurement
1 VEGABAR 87
2 VEGABAR 87 - Slave sensor
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. Power supply and parameter adjustment are carried out
through the master sensor.
Information:
The sensor versions "Relative pressure climate-compensated" as
well as "Double chamber housing" are not suitable for connection of a
slave sensor.
You can nd further information in chapter "Combination Master -
Slave " of this operating instructions.
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 output as measured value.
The METEC®measuring cell is the measuring unit. It consists of
the ceramic-capacitive CERTEC® measuring cell and a special,
temperature-compensated isolating system.
Measuring system
10
3 Product description
VEGABAR 87 • Slave sensor for electronic dierential pressure
45053-EN-200529
4321
Fig. 3: Conguration of the METEC®measuring cell with VEGABAR 87
1 Process diaphragm
2 Isolating liquid
3 FeNi adapter
4 CERTEC®measuring cell
Relative pressure: the measuring cell is open to the atmosphere.
The ambient pressure is detected in the measuring cell and compen-
sated. It thus has no inuence on the measured value.
Absolute pressure: the measuring cell contains vacuum and is
encapsulated. The ambient pressure is not compensated and does
hence inuence the measured value.
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 output as measured value.
The METEC®measuring cell is the measuring unit. It consists of
the ceramic-capacitive CERTEC® measuring cell and a special,
temperature-compensated isolating system.
4321
Fig. 4: Conguration of the METEC®measuring cell with VEGABAR 87
1 Process diaphragm
2 Isolating liquid
3 FeNi adapter
4 CERTEC®measuring cell
Pressure types
Measuring system
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