Vega VEGABAR 86 User manual

Quick setup guide
Pressure transmitter with ceramic
measuring cell
VEGABAR 86
Secondary sensor for electronic di󰀨erential
pressure
With SIL qualication
Document ID: 48053

2
Contents
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
Contents
1 About this document ............................................................................................................... 3
1.1 Function ........................................................................................................................... 3
1.2 Target group..................................................................................................................... 3
1.3 Symbols used................................................................................................................... 3
2 For your safety ......................................................................................................................... 4
2.1 Authorised personnel ....................................................................................................... 4
2.2 Appropriate use................................................................................................................ 4
2.3 Warning about incorrect use............................................................................................. 4
2.4 General safety instructions............................................................................................... 4
2.5 EU conformity................................................................................................................... 4
2.6 SIL qualication according to IEC 61508.......................................................................... 5
2.7 Environmental instructions ............................................................................................... 5
3 Product description ................................................................................................................. 6
3.1 Conguration.................................................................................................................... 6
4 Mounting................................................................................................................................... 7
4.1 General instructions for use of the instrument .................................................................. 7
4.2 Ventilation and pressure compensation............................................................................ 7
4.3 Combination Primary/Secondary sensor.......................................................................... 7
5 Connecting to power supply................................................................................................. 10
5.1 Connecting..................................................................................................................... 10
5.2 Single chamber housing................................................................................................. 11
5.3 Connection example ...................................................................................................... 11
6 Set up with the display and adjustment module ................................................................ 13
6.1 Insert display and adjustment module............................................................................ 13
6.2 Parameter adjustment .................................................................................................... 14
6.3 Menu overview ............................................................................................................... 17
7 Supplement ............................................................................................................................ 20
7.1 Technical data ................................................................................................................ 20
Information:
This quick setup guide enables quick setup and commissioning of
your instrument.
You can nd supplementary information in the corresponding, more
detailed Operating Instructions Manual as well as the Safety Manual
that comes with instruments with SIL qualication. These manuals are
available on our homepage.
Operating instructions VEGABAR 86 - Secondary sensor for
electronic dierential pressure with SIL qualication: Docu-
ment-ID 48048
Safety Manual VEGABAR series 80 - Two-wire 4 … 20 mA/HART
with SIL qualication: Document-ID 48369
Editing status of the quick setup guide: 2022-04-20

3
1 About this document
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
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 rectication, 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 qualied
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.
Disposal
This symbol indicates special instructions for disposal.

4
2 For your safety
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualied 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
As Secondary Device, the VEGABAR 86 is part of an electronic dif-
ferential pressure meaasurement.
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 this product can give rise to applica-
tion-specic hazards, e.g. vessel overll 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 modications are explicitly forbidden. For safety
reasons, only the accessory specied 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 fulls the legal requirements of the applicable EU direc-
tives. By axing the CE marking, we conrm the conformity of the
instrument with these directives.

5
2 For your safety
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
The EU conformity declaration can be found on our homepage.
2.6 SIL qualication according to IEC 61508
The Safety Integrity Level (SIL) of an electronic system is used to as-
sess the reliability of integrated safety functions.
For detailed specication of the safety requirements, multiple SIL
levels are specied according to safety standard IEC 61508. You can
nd detailed information in chapter " Functional safety (SIL)" of the
operating instructions.
The instrument meets the specications of IEC 61508: 2010 (Edi-
tion 2). It is qualied for single-channel operation up to SIL2. The
instrument can be used homogeneously redundant up to SIL3 in
multi-channel architecture with HFT 1.
2.7 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l this obligation by observing the environmental
instructions in this manual:
• Chapter " Packaging, transport and storage"
• Chapter " Disposal"

6
3 Product description
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
3 Product description
3.1 Conguration
The type label contains the most important data for identication and
use of the instrument:
7
8
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
8 SILidentication
The type label contains the serial number of the instrument. With it
you can nd the following instrument data on our homepage:
• Product code (HTML)
• Delivery date (HTML)
• Order-specic instrument features (HTML)
• Operating instructions, quick setup guide and Safety Manual at the
time of shipment (PDF)
• Test certicate (PDF) - optional
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
Type label
Serial number - Instru-
ment search

7
4 Mounting
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
4 Mounting
4.1 General instructions for use of the instrument
Protect your instrument against moisture ingress through the following
measures:
• Use a suitable connection cable (see chapter " Connecting to
power supply")
• Tighten the cable gland or plug connector
• Lead the connection cable downward in front of the cable entry or
plug connector
This applies mainly to outdoor installations, in areas where high
humidity is expected (e.g. through cleaning processes) and on cooled
or heated vessels.
Note:
Make sure that during installation or maintenance no moisture or dirt
can get inside the instrument.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
4.2 Ventilation and pressure compensation
1 2 3
4 4 4
Fig.2:Positionofthelterelement-non-Ex,Ex-iaversion
1 Plastic, stainless steel housing (precision casting)
2 Aluminium housing
3 Stainless steel housing (electropolished)
4 Filter element
With the following instruments a blind plug is installed instead of the
lter element:
• Instruments in protection IP66/IP68 (1 bar) - ventilation via capillar-
ies in non-detachable cable
• Instruments with absolute pressure
4.3 Combination Primary/Secondary sensor
In principle, any sensor combination within the instrument series is
allowed. The following requirements must be fullled:
• Conguration of the sensor suitable for electronic dierential pres-
sure
• Pressure type is identical for both sensors, i.e. relative pressure/
relative pressure or absolute pressure/absolute pressure
Protection against mois-
ture
Filter element - Position

8
4 Mounting
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
• Primary Device measures the higher pressure
• Measurement setup as shown in the following chapters
The measuring range of each sensor is selected such that it ts the
measuring loop. For this, the max. recommended turn down must be
noted. See chapter " Technical data". It is absolutely necessary the
the measuring ranges of Primary and Secondary Device correspond.
Measurement result = Measured value of Primary (total pres-
sure) - measured value of Secondary (static pressure)
Depending on the application, individual combinations can result, see
following examples:
Data
Application: Level measurement
Medium: Water
Vessel height: 12 m, hydrostatic pressure = 12 m x 1000 kg/m3x
9.81 m/s2 = 117.7 kPa = 1.18 bar
Superimposed pressure: 1 bar
Total pressure: 1.18 bar + 1 bar = 2.18 bar
Instrument selection
Nominal measuring range Primary: 2.5 bar
Nominal measuring range Secondary: 1 bar
Turn Down: 2.5 bar/1.18 bar = 2.1 : 1
Data
Application: Level measurement
Medium: Water
Vessel height: 500 mm, hydrostatic pressure = 0.50 m x 1000 kg/m3x
9.81 m/s2 = 4.9 kPa = 0.049 bar
Superimposed pressure: 350 mbar = 0.35 bar
Total pressure: 0.049 bar + 0.35 bar = 0.399 bar
Instrument selection
Nominal measuring range Primary: 0.4 bar
Nominal measuring range Secondary: 0.4 bar
Turn Down: 0.4 bar /0.049 bar = 8.2 : 1
Data
Application: Dierential pressure measurement
Medium: Gas
Static pressure: 0.8 bar
Dierential pressure on orice: 50 mbar = 0.050 bar
Total pressure: 0.8 bar + 0.05 bar = 0.85 bar
Instrument selection
Nominal measuring range Primary: 1 bar
Nominal measuring range Secondary: 1 bar
Turn Down: 1 bar/0.050 bar = 20 : 1
Example - large vessel
Example - small vessel
Example - orice in
pipeline

9
4 Mounting
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
The measuring result (level, pressure dierence) as well as measured
value Secondary (static or superimposed pressure) are output by the
sensor. Depending on the instrument version, output as 4 … 20 mA
signal or digitally via HART, Probus PA or Foundation Fieldbus.
Output measured values

10
5 Connecting to power supply
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
5 Connecting to power supply
5.1 Connecting
The connection to the Primary Device is carried out through spring-
loaded terminals in the respective housing. For this, use the supplied,
confectioned cable. Solid cores as well as exible cores with cable
end sleeves are inserted directly into the terminal openings.
In case of exible cores without end sleeves, press the terminal from
above with a small screwdriver, the terminal opening is then free.
When the screwdriver is released, the terminal closes again.
Information:
The terminal block is pluggable and can be removed from the
electronics. To do this, lift the terminal block with a small screwdriver
and pull it out. When reinserting the terminal block, you should hear it
snap in.
You can nd further information on the max. wire cross-section under
" Technicaldata-Electromechanicaldata".
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
3. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
1 cm (0.4 in) insulation from the individual wires or use supplied
connection cable
4. Insert the cable into the sensor through the cable entry
Fig. 3: Connection steps 5 and 6
5. Insert the wire ends into the terminals according to the wiring plan
6. Check the hold of the wires in the terminals by lightly pulling on
them
Connection technology
Connection procedure

11
5 Connecting to power supply
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
7. Connect the shielding to the internal ground terminal, connect the
external ground terminal to potential equalisation
8. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
9. Unscrew the blind plug on the Primary, screw in the supplied
cable gland
10. Connection cable to Primary, see steps 3 to 8
11. Screw the housing lid back on
The electrical connection is nished.
5.2 Single chamber housing
The following illustration applies to the non-Ex, Ex-ia and Ex-d-ia
version.
5678 4
2
1
connect to Primary
Fig.4:WiringplanVEGABAR86SecondaryDevice
1 To the Primary Device
2 Ground terminal for connection of the cable screening 1)
5.3 Connection example
5678
4
2
3
1
4
connect to Primary
5
12
+
( ) (-)
678
4...20mA
Fig.5:Connectionexample,electronicdierentialpressure
1 Primary Device
2 Secondary Device
3 Connection cable
4 Supply and signal circuit Primary Device
Electronics and connec-
tion compartment
Connection example,
electronic dierential
pressure
1) Connect shielding here. Connect ground terminal on the outside of the hous-
ing to ground as prescribed. The two terminals are galvanically connected.

12
5 Connecting to power supply
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
The connection between Primary and Secondary Device is carried
out acc. to the table:
Primary Device Secondary Device
Terminal 5 Terminal 5
Terminal 6 Terminal 6
Terminal 7 Terminal 7
Terminal 8 Terminal 8

13
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
6 Set up with the display and adjustment
module
6.1 Insert display and adjustment module
The display and adjustment module can be inserted into the sensor
and removed again at any time. You can choose any one of four dier-
ent positions - each displaced by 90°. It is not necessary to interrupt
the power supply.
Proceed as follows:
1. Unscrew the housing lid
2. Place the display and adjustment module on the electronics in the
desired position and turn it to the right until it snaps in.
3. Screw housing lid with inspection window tightly back on
Disassembly is carried out in reverse order.
The display and adjustment module is powered by the sensor, an ad-
ditional connection is not necessary.
Fig. 6: Installing the display and adjustment module in the electronics compart-
ment of the single chamber housing

14
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
1 2
Fig. 7: Installing the display and adjustment module in the double chamber
housing
1 In the electronics compartment
2 In the connection compartment
Note:
If you intend to retrot the instrument with a display and adjustment
module for continuous measured value indication, a higher lid with an
inspection glass is required.
6.2 Parameter adjustment
A parameter change with SIL qualied instruments must always be
carried out as follows:
• Unlock adjustment
• Change parameters
• Lock adjustment and verify modied parameters
This ensures that all modied parameters have been deliberately
changed.
Unlock adjustment
The instrument is shipped in locked condition.
To prevent unintentional or unauthorized adjustment, the instrument
is protected (locked) against all parameter changes while in normal
operating condition.
For each parameter change you have to enter the PIN of the instru-
ment. In delivery status, the PIN is "0000".
Change parameters
You can nd a description below the respective parameter.
Operating sequence

15
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
Lock adjustment and verify modied parameters
You can nd a description below the parameter " Setup-Lockadjust-
ment".
1. Go to the menu " Setup" via the display and adjustment module.
2. In this menu item you activate/deactivate the Secondary sensor
for electronic dierential pressure and select the application, e.g.
level
3. Select in the menu item " Units" the adjustment unit of the instru-
ment, e.g. " bar".
4. Depending on the application, carry out the adjustment e.g. in the
menu items " Min. adjustment" and " Max. adjustment".
VEGABAR 86 always measures pressure independently of the pro-
cess variable selected in the menu item " Application". To output the
selected process variable correctly, an allocation of the output signal
to 0 % and 100 % must be carried out (adjustment).
For the application " Interface", the hydrostatic pressure e.g. with
interface "Min." and interface "Max." is entered for the adjustment.
The position of the interface is detected by the Secondary sensor.
See following example:
Change setup parameters
Parameterization example

16
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
2
1
100%
0%
2 m
(78.74
")
h
0,8
1,0
Fig. 8: Parameter adjustment example "Min./max. adjustment, interface meas-
urement"
1 Min. interface = 0 % correspond to 0.0 mbar
2 Max. interface = 100 % correspond to 490.5 mbar
3 VEGABAR86
4 VEGABAR86-Secondarysensor
If these values are not known, an adjustment with interface layers of
for example 10 % and 90 % is also possible. By means of these set-
tings, the layer of the actual interface is then calculated.
The real product level during the adjustment is not important, be-
cause the min./max. interface adjustment is always carried out without
changing the product level. These settings can be made ahead of
time without the instrument having to be installed.
With this menu item you safeguard the sensor parameters against
unauthorized or unintentional modications.
To detect parameterization errors reliably, safety-relevant parameters
must be veried before saving them into the instrument.
1. Enter PIN
In delivery status, the PIN is "0000".
2. Character string comparison
You then have to carry out the character string comparison. This is
used to check the character presentation.
3. Serial number acknowledgement
Afterwards you conrm that the serial number of your instrument was
carried over correctly. This is used to check device communication.
4. Verify parameters
Conrm the modied values one after the other.
Lock adjustment

17
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
If the described process of parameter adjustment was run through
completely and correctly, the instrument will be locked and hence
ready for operation.
6.3 Menu overview
The following tables show the adjustment menu of the instrument.
Depending on the instrument version or application, all menu items
may not be available or some may be dierently assigned.
Note:
You can nd further menu items in the operating instructions of the
respective Primary Device.
Setup
Menu item Parameter Default setting
Measurement
loop name
19 alphanumeric char-
acters/special characters
Sensor
Application
(SIL)
Level, process pressure Level
Secondary Device for
electronic dierential
pressure 2)
Deactivated
Units Adjustment unit (m, bar,
Pa, psi … user-dened)
mbar (with nominal measuring
range ≤ 400 mbar)
bar (with nominal measuring
ranges ≥ 1 bar)
Static pressure bar
Position correc-
tion (SIL)
0.00 bar
Adjustment
(SIL)
Distance (with density
and interface)
1.00 m
Zero/Min. adjustment 0.00 bar
0.00 %
Span/Max. adjustment Nominal measuring range in bar
100.00 %
Damping (SIL) Integration time 0.0 s
Linearization
(SIL)
Linear, cylindrical tank,
… user-dened
Linear
Current output
(SIL)
Current output - Mode Output characteristics
4 … 20 mA
Reaction when malfunctions oc-
cur
≤ 3.6 mA
Current output - Min./
Max.
3.8 mA
20.5 mA
2) Parameter active, when Secondary Device is connected

18
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
Menu item Parameter Default setting
Lock adjust-
ment (SIL)
Blocked, released Last setting
Menu item Default setting
Menu language Order-specic
Displayed value 1 Current output in %
Displayed value 2 Ceramic measuring cell: Measuring cell tempera-
ture in °C
Metallic measuring cell: Electronics temperature
in °C
Display format 1 and 2 Number of positions after the decimal point, auto-
matically
Backlight Switched on
Menu item Parameter Default setting
Device status -
Peak value Pressure Current pressure measured value
Pointer function
temp.
Temperature Actual measuring cell and elec-
tronic temperature
Simulation -
Menu item Parameter Default setting
PIN 0000
Date/Time Actual date/Actual time
Copy instru-
ment settings
-
Special param-
eters
No reset
Scaling Scaling size Volume in l
Scaling format 0 % corresponds to 0 l
100 % corresponds to 0 l
Current output Current output - Meas.
variable
Lin. percent - Level
Current output - Adjust-
ment
0 … 100 % correspond to
4 … 20 mA
HART mode Address 0
DP ow ele-
ment
Unit m3/s
Adjustment 0.00 % correspond to 0.00 m3/s
100.00 %, 1 m3/s
Display
Diagnostics
Additional adjustments

19
6 Set up with the display and adjustment module
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
Menu item Parameter
Device name VEGABAR 86
Instrument version Hardware and software version
Factory calibration date Date
Sensor characteristics Order-specic characteristics
Info

20
7 Supplement
VEGABAR 86 • Secondary sensor for electronic dierential pressure
48053-EN-220624
7 Supplement
7.1 Technical data
Note for approved instruments
The technical data in the respective safety instructions which are included in delivery are valid for
approved instruments (e.g. with Ex approval). These data can dier from the data listed herein, for
example regarding the process conditions or the voltage supply.
All approval documents can be downloaded from our homepage.
Electromechanical data - version IP66/IP67 and IP66/IP68 (0.2 bar) 3)
Options of the cable entry
ƲCable entry M20 x 1.5; ½ NPT
ƲCable gland M20 x 1.5, ½ NPT (cable ø see below table)
Ʋ Blind plug M20 x 1.5; ½ NPT
Ʋ Closing cap ½ NPT
Material cable gland/Seal insert Cable diameter
5 … 9 mm 6 … 12 mm 7 … 12 mm 10 … 14 mm
PA/NBR ● ● –●
Brass, nickel-plated/NBR ● ● – –
Stainless steel/NBR – – ●–
Wire cross-section (spring-loaded terminals)
Ʋ Massive wire, stranded wire 0.2 … 2.5 mm² (AWG 24 … 14)
ƲStranded wire with end sleeve 0.2 … 1.5 mm² (AWG 24 … 16)
Interface to the Primary Device
Data transmission Digital (I²C-Bus)
Connection cable Secondary - Primary, mechanical data
Ʋ Conguration Cores, strain relief, braided, metal foil, jacket
ƲStandard length 5 m (16.40 ft)
ƲMax. length 25 m (82.02 ft)
Ʋ Min. bending radius (at 25 °C/77 °F) 25 mm (0.985 in)
ƲDiameter approx. 8 mm (0.315 in), approx. 6 mm (0.236 in)
ƲMaterial PE, PUR
ƲColour Black, blue
Connection cable Secondary - Primary, electrical data
ƲWire cross-section 0.34 mm² (AWG 22)
ƲWire resistance < 0.05 Ω/m (0.015 Ω/ft)
3) IP66/IP68 (0.2 bar), only with absolute pressure.