Vega VEGABAR 17 User manual

Operating Instructions
VEGABAR 17
Document ID:
27636
Process pressure

Contents
1About this document
1.1Function.................................. 4
1.2Target group .............................. 4
1.3Symbolism used............................ 4
2For your safety
2.1Authorised personnel ........................ 5
2.2Appropriate use ............................ 5
2.3Warning about incorrect use ................... 5
2.4General safety instructions .................... 5
2.5Safety label on the instrument .................. 6
2.6CE conformity ............................. 6
2.7Measuring range -permissible process pressure . . . . 6
2.8Safety instructions for Ex areas ................. 6
2.9Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 8
3.3Operation................................. 8
3.4Packaging,transport and storage ............... 8
4Mounting
4.1General instructions ......................... 10
4.2Instructions for installation ..................... 10
4.3Mounting steps............................. 10
5Connecting to power supply
5.1Preparing the connection ..................... 12
5.2Connection procedure........................ 13
5.3Wiring plan................................ 16
6Setup
6.1Setup steps ............................... 18
6.2Recalibration .............................. 18
7Maintenance and fault rectification
7.1Maintenance .............................. 21
7.2Remove interferences........................ 21
7.3Instrument repair ........................... 22
8Dismounting
8.1Dismounting steps .......................... 23
8.2Disposal ................................. 23
9Supplement
9.1Technical data ............................. 24
9.2Dimensions ............................... 30
2VEGABAR 17
Contents
27636-EN-120531

Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
with the delivery.You can find them listed in chapter "Product
description".
Editing status:2012-05-29
VEGABAR 17 3
Contents
27636-EN-120531

1About this document
1.1Function
This operating instructions manual provides all the information you
need for mounting,connection and setup as well as important
instructions for maintenance and fault rectification.Please read this
information before putting the instrument into operation and keep this
manual accessible in the immediate vicinity of the device.
1.2Target group
This operating instructions manual is directed to trained qualified
personnel.The contents of this manual should be made available to
these personnel and put into practice by them.
1.3Symbolism 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.
Exapplications
This symbol indicates special instructions for Ex applications.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow indicates a single action.
1Sequence
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of
batteries and accumulators.
4VEGABAR 17
1About this document
27636-EN-120531

2For your safety
2.1Authorised 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.
2.2Appropriate use
VEGABAR 17 is a pressure transmitter for measurement of gauge
pressure,absolute pressure and vacuum.
You can find detailed information on the application range in chapter
"Product description".
Operational reliability is ensured only if the instrument is properly used
according to the specifications in the operating instructions manual as
well as possible supplementary instructions.
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.Arbitrary
conversions or modifications are explicitly forbidden.
2.3Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards,e.g.vessel overfill or damage to system
components through incorrect mounting or adjustment.
2.4General 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-
specific installation standards as well as all prevailing safety
regulations and accident prevention rules.
The instrument must only be operated in a technically flawless and
reliable condition.The operator is responsible for trouble-free
operation 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.
VEGABAR 17 5
2For your safety
27636-EN-120531

2.5Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6CE conformity
The device fulfills the legal requirements of the applicable EC
guidelines.By affixing the CE marking,we confirm successful testing
of the product.
You can find the conformity certificate in the download section of our
homepage.
2.7Measuring range -permissible process pres-
sure
Due to the application,a measuring cell with a measuring range higher
than the permissible pressure range of the process fitting may have
been integrated.The permissible process pressure is stated with
"Process pressure"on the type label,see chapter 3.1"Configuration".
For safety reasons,this range must not be exceeded.
2.8Safety instructions for Ex areas
Please note the Ex-specific 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.
2.9Environmental 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 certified according to DIN
EN ISO 14001.
Please help us fulfil this obligation by observing the environmental
instructions in this manual:
lChapter "Packaging,transport and storage"
lChapter "Disposal"
6VEGABAR 17
2For your safety
27636-EN-120531

3Product description
3.1Structure
The scope of delivery encompasses:
lVEGABAR 17 process pressure transmitter
lDepending on the version,with plug connector,connection cable
or terminal housing
lDocumentation
-this operating instructions manual
-Ex-specific"Safety instructions"(with Ex versions)
-if necessary,further certificates
4
3
2
1
Fig.1:VEGABAR 17 with plug connector according to ISO 4400
1Process fitting
2Housing with electronics
3Pressure compensation (beneath the knurled nut)
4Plug connector
The type label contains the most important data for identification and
use of the instrument:
lArticle number
lSerial number
lTechnical data
lArticle numbers,documentation
With the serial number,you can access the delivery data of the
instrument via www.vega.com,"VEGA Tools"and "serial number
search".In addition to the type label outside,you can also find the
serial number on the inside of the instrument.
Scope of delivery
Structure
Type label
VEGABAR 17 7
3Product description
27636-EN-120531

3.2Principle of operation
VEGABAR 17 is a pressure transmitter for measurement of gauge
pressure,absolute pressure or vacuum.Measured products are
gases,vapours and liquids.The front flush versions are also suitable
for use in viscous or contaminated products.
The process pressure acts on the sensor element via the stainless
steel diaphragm.The process pressure causes a resistance change
which is converted into a corresponding output signal and outputted as
measured value.1)
4…20 mAtwo-wire electronics for voltage supply and measured
value transmission on the same cable.
3.3Operation
The VEGABAR 17 has no adjustment options.
However,there are two built-in potentiometers for recalibration of zero
and span.
3.4Packaging,transport and storage
Your instrument was protected by packaging during transport.Its
capacity to handle normal loads during transport is assured by a test
according to DIN EN 24180.
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 under 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
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:
lNot in the open
1)Measuring ranges up to 16 bar:piezoresistive sensor element with internal
transmission liquid.Measuring ranges up to 25 bar:strain gauge (DMS)
sensor element on the rear of the stainless steel diaphragm (dry).
Application area
Functional principle
Voltage supply
Packaging
Transport
Transport inspection
Storage
8VEGABAR 17
3Product description
27636-EN-120531

lDry and dust free
lNot exposed to corrosive media
lProtected against solar radiation
lAvoiding mechanical shock and vibration
lStorage and transport temperature see chapter "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Storage and transport
temperature
VEGABAR 17 9
3Product description
27636-EN-120531

4Mounting
4.1General instructions
Make sure that all parts of the instrument exposed to the process,in
particular the sensor element,process seal and process fitting,are
suitable for the existing process conditions.These include above all
the process pressure,process temperature as well as the chemical
properties of the medium.
You can find the specifications in chapter "Technical data"and on the
type label.
To protect the diaphragm,the process fitting is covered by a protective
cap.
Remove the protective cap just before installation so that the
diaphragm will not get damaged.It is recommended to keep the cap
and use it again later for storage or transport.
4.2Instructions for installation
Please check the diaphragm visually for damage and leaking fluid
before mounting and setting up the instrument.Make sure that the
diaphragm doesn't get damaged during installation.
Caution:
The instrument may only be used if it is in a technically flawless
condition and has an undamaged diaphragm.
VEGABAR 17 functions in any installation position.It is mounted
according to the same directives as a manometer (DIN EN 839-2).
Information:
We recommend using lock fittings,measuring instrument holders and
siphons from our line of accessories.
4.3Mounting steps
For mounting VEGABAR 17,a welded socket is required.You can find
these components in the supplementary instructions manual "Welded
socket and seals".
Use the seal fitting to the instrument,or in case of NPT connections,a
high-resistance sealing material.
Screw VEGABAR 17 into the welded socket with a wrench applied to
the hexagon of the process fitting.For the proper torque see chapter
"Technical data",for spanner size see chapter "Dimensions".
Suitability for the pro-
cess conditions
Diaphragm protection
Checking the diaphragm
Mounting position
Welding the socket
Sealing/Screwing in
10 VEGABAR 17
4Mounting
27636-EN-120531

Fig.2:Mounting of VEGABAR 17
VEGABAR 17 11
4Mounting
27636-EN-120531

5Connecting to power supply
5.1Preparing the connection
Always keep in mind the following safety instructions:
lConnect only in the complete absence of line voltage
lIf overvoltage surges are expected,overvoltage arresters should
be installed
Tip:
We recommend VEGA overvoltage arrester ÜSB 62-36G.X.
In hazardous areas you must take note of the respective regulations,
conformity and type approval certificates of the sensors and power
supply units.
The supply voltage and the current signal are carried on the same two-
wire connection cable.
Provide a reliable separation between the supply circuit and the mains
circuits according to DIN VDE 0106 part 101.
VEGA power supply units VEGATRENN 149AEx,VEGASTAB 690,
VEGADIS 371 as well as all VEGAMETs meet this requirement.When
using one of these instruments,protection class III is ensured for
VEGABAR 17.
Keep in mind the following additional factors that influence the
operating voltage:
lOutput voltage of the power supply unit can be lower under
nominal load (with a sensor current of 20.5mAor 22 mAin case of
fault message)
lInfluence of additional instruments in the circuit (see load values in
chapter "Technical data")
The instrument is connected with standard two-wire cable without
screen.If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas,screened cable should be
used.
Use cable with round cross-section.Acable outer diameter of 5…9mm
(0.2…0.35 in)ensures the seal effect of the cable gland.If you are
using cable with a different diameter or cross-section,exchange the
seal or use a suitable cable gland.
For the version with round plug connector M12 x1,a suitable,ready-
made connection cable (article no.ASL.1S.) in 5m,10 m or 25 m
lengths is available from the line of VEGA accessories.
Note safety instructions
Take note of sa-
fety instructions
for Ex applica-
tions
Select power supply
Select connection cable
12 VEGABAR 17
5Connecting to power supply
27636-EN-120531

Connect the cable screen on both ends to ground potential.
If potential equalisation currents are expected,the connection on the
processing side must be made via a ceramic capacitor (e.g.1nF,
1500 V). The low frequency potential equalisation currents are thus
suppressed,but the protective effect against high frequency interfer-
ence signals remains.
Warning:
Considerable potential differences exist inside galvanic plants as well
as vessels with cathodic corrosion protection.Very large equalisation
currents can flow through the cable screen when the screen is
grounded on both ends.To avoid this,the cable screen must be
connected to ground potential only on one end (inside the switching
cabinet)in such applications.The cable screen must not be
connected to the internal ground terminal in the sensor and the outer
ground terminal on the housing not to potential equalisation!
Information:
The metallic parts of the instrument (antenna,transmitter,concentric
tube,etc.) are conductively connected with the inner and outer ground
terminal on the housing.This connection exists either as a direct
metallic contact or via the shielding of the special connection cable on
instruments with external electronics.You can find specifications on
the potential connections within the instrument in chapter "Technical
data".
Take note of the corresponding installation regulations for Ex
applications.
5.2Connection procedure
Proceed as follows:
1Loosen the screw on the rear of the plug connector
2Remove the plug connector and seal from VEGABAR 17
3Remove the plug insert from the plug housing
Cable screening and
grounding
Select connec-
tion cable for Ex
applications
Connection via angle
plug connector
VEGABAR 17 13
5Connecting to power supply
27636-EN-120531

1
2
3
Fig.3:Loosen the plug insert
1Cable gland
2Plug insert
3Plug housing
4Remove approx.5cm of the cable mantle,strip approx.1cm
insulation from the individual wires
5Lead the cable through the cable gland into the plug housing
6Connect the wire ends to the screw terminals according to the
wiring plan
2
3
1
4
Fig.4:Connection to the screw terminals
1Cable gland
2Plug housing
3Plug insert
4Plug seal
7Snap the plug insert into the plug housing and insert the sensor
seal
8Plug the plug insert with seal to VEGABAR 17 and tighten the
screw
The electrical connection is finished.
Proceed as follows:
Connection via angle
plug connector with hin-
ged cover
14 VEGABAR 17
5Connecting to power supply
27636-EN-120531

1Loosen the screw in the cover of the plug connector
2Open the cover and remove it
3Press the plug insert downwards
4Loosen the screws of the strain relief and cable entry
4
32
1
3
2
1
Fig.5:Loosen the plug insert
1Plug insert
2Strain relief
3Cable gland
4Plug housing
5Remove approx.5cm of the cable mantle,strip approx.1cm
insulation from the individual wires
6Lead the cable through the cable gland into the plug housing
7Connect the wire ends to the screw terminals according to the
wiring plan
1
5
2
3
4
Fig.6:Connection to the screw terminals
1Cable gland
2Cover
3Plug housing
4Plug insert
5Plug seal
VEGABAR 17 15
5Connecting to power supply
27636-EN-120531

8Snap the plug insert into the plug housing and insert the sensor
seal
Information:
Note the correct arrangement,see illustration
9Tighten the screws on the strain relief and cable entry
10 Hook in the cover and push onto the plug connection,tighten
cover screw
11 Plug the plug insert with seal to VEGABAR 17 and tighten the
screw
The electrical connection is finished.
5.3Wiring plan
1
2
3
+
-
1
Fig.7:Wiring plan,angle plug connector according to ISO 4400,top view to
VEGABAR 17
1Voltage supply and signal output
3
+
-
1
3
2
4
1
Fig.8:Wiring plan,round plug connector M12 x1,top view to VEGABAR 17
1Voltage supply and signal output
Connection via connection cable with 4-pole socket M12 x1
(accessory)
Angled plug connector
according to ISO 4400
Round plug connector
M12 x1
16 VEGABAR 17
5Connecting to power supply
27636-EN-120531

Wire colour Socket
Brown 1
White 2
Blue 3
Black 4
1
2
3
Fig.9:Wiring plan cable outlet
1brown (+)power supply and signal output
2green (-) power supply and signal output
3blue =cable screen
321
–
+
–
+
4 5
1
2
Fig.10:Wiring plan,terminal housing
1To power supply or the processing system
2Control instrument (4…20 mAmeasurement)
Cable outlet
Terminal housing
VEGABAR 17 17
5Connecting to power supply
27636-EN-120531

6Setup
6.1Setup steps
After mounting and electrical connection,VEGABAR 17 is ready for
operation.
VEGABAR 17 delivers a current of 4…20 mAcorresponding to the
actual process pressure.
Further settings are not necessary.
6.2Recalibration
With both instruments with thread ring or field housing,zero and span
can be adjusted via integrated potentiometers.Adjustment range:
lZero ±5%
lSpan ±5%
This allows,for example,the consideration of an installation position
different from the reference installation position.
Ashifting of zero shifts span also respectively.
Note:
The potentiometer for span should only be used if you have adequate
calibration equipment (at least 3times more precise than the deviation
of VEGABAR 17).
Recommended recalibration cycle:1year.
Proceed as follows:
1Loosen the plug connector and screw the screwed ring in
connected status
2Place the plug connector onto the instrument place and pull both
carefully out of the instrument
Instruments with plug
connector or cable out-
let
18 VEGABAR 17
6Setup
27636-EN-120531

1
2
3
4
5
6
Fig.11:Open the instrument
1Plug connector
2Plug seal
3Screwed ring
4Instrument plug
5Plug seal
6Housing
3Set zero in unpressurized status,check 4mAsignal in the circuit
4Set span with exact reference pressure
5Check zero
21
Fig.12:Adjustment of zero and span
1zero (Z)
2span (S)
6Assemble the instrument and connect it.
VEGABAR 17 19
6Setup
27636-EN-120531

Proceed as follows:
1Screw on the housing cover in connected status
4
5
Fig.13:Adjustment of zero and span
1zero (Z)
2span (S)
2Set zero in unpressurized status,check 4mAsignal in the circuit
3Set a span with a sufficiently precise reference pressure
4Check zero
5Screw the housing cover back on
Instruments with termi-
nal housing
20 VEGABAR 17
6Setup
27636-EN-120531