Operating Instructions
VEGABAR 74
4 … 20 mA/HART
Process pressure/
Hydrostatic
p
Contents
1 About this document
1.1 Function . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
5
1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . .
5
1.3 Symbolism used . . . . . . . . . . . . . . . . . . . . . . .
5
2 For your safety
2.1 Authorised personnel. . . . . . . . . . . . . . . . . . . .
6
2.2 Appropriate use. . . . . . . . . . . . . . . . . . . . . . . .
6
2.3 Warning about misuse . . . . . . . . . . . . . . . . . . .
6
2.4 General safety instructions . . . . . . . . . . . . . . . .
6
2.5 Safety approval markings and safety tips . . . . .
7
2.6 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . .
7
2.7 Fulfilling NAMUR recommendations . . . . . . . . .
7
2.8 Safety instructions for Ex areas . . . . . . . . . . . .
8
2.9 Environmental instructions . . . . . . . . . . . . . . . .
8
3 Product description
3.1 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . .
9
3.2 Principle of operation . . . . . . . . . . . . . . . . . . . .
10
3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
3.4 Packaging, transport and storage . . . . . . . . . . .
11
4 Mounting
4.1 General instructions. . . . . . . . . . . . . . . . . . . . .
12
4.2 Mounting steps . . . . . . . . . . . . . . . . . . . . . . . .
13
5 Connecting to power supply
5.1 Preparing the connection . . . . . . . . . . . . . . . . .
14
5.2 Connection procedure . . . . . . . . . . . . . . . . . . .
16
5.3 Wiring plan . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
6 Set up
6.1 Setup steps without VEGADIS 12 . . . . . . . . . . .
19
6.2 Setup steps with VEGADIS 12 . . . . . . . . . . . . .
19
7 Setup with PACTware™
7.1 Connect the PC with VEGACONNECT 3 . . . . .
22
7.2 Connect the PC with VEGACONNECT 4 . . . . .
23
7.3 Parameter adjustment with PACTware™. . . . . .
24
7.4 Parameter adjustment with AMS™ and PDM . .
24
7.5 Saving the parameter adjustment data . . . . . . .
24
2 VEGABAR 74 - 4 … 20 mA/HART
Contents
28432-EN-070718
8 Maintenance and fault rectification
8.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .
25
8.2 Fault clearance . . . . . . . . . . . . . . . . . . . . . . . .
25
8.3 Instrument repair . . . . . . . . . . . . . . . . . . . . . . .
26
9 Dismounting
9.1 Dismounting steps. . . . . . . . . . . . . . . . . . . . . .
27
9.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27
10 Supplement
10.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . .
28
10.2 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . .
35
10.3 Industrial property rights. . . . . . . . . . . . . . . . . .
41
10.4 Trademark . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
Supplementary documentation
Information:
Depending on the ordered version, supplementary documentation belongs to the scope of delivery. You find this
documentation in chapter "Product description".
Instructions manuals for accessories and replacement
parts
Tip:
To ensure reliable setup and operation of your VEGABAR 74,
we offer accessories and replacement parts. The associated
documents are:
l Supplementary instructions manual 3203
6 "Welded socket
and seals"
l Operating instructions manual 32798 "Breather housing
VEGABOX 02"
l Operatin
g instructions manual 20591 "External indicating
and adjustment unit VEGADIS 12"
VEGABAR 74 - 4 … 20 mA/HART 3
Contents
28432-EN-070718
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 rectification.
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 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 malfunc-
tions 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.
l List
The dot set in
front indicates a list with no implied sequence.
à Action
This arrow indicates a
single action.
1 Sequence
Numbers set in front indicate successive steps in a procedure.
4 VEGABAR 74 - 4 … 20 mA/HART
About this document
28432-EN-070718
2 For your safety
2.1 Authorised personnel
All operations descr
ibed in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the operator.
During work on and with the device the required personal
protection equipment must always be worn.
2.2 Appropriate use
VEGABAR 74 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.
Due to 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.
2.3 Warning about misuse
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.
2.4 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-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 troublefree operation of the instrument.
VEGABAR 74 - 4 … 20 mA/HART 5
For your safety
28432-EN-070718
During the entire duration of use, the user is obliged to
determine the compliance of the required occupational safety
measures with the current valid rules and regulations and also
take note of new regulations.
2.5 Safety approval markings and safety tips
The safety approval markings and safety tips on the device
must be observed.
2.6 CE conformity
VEGABAR 74 is in CE conformity with EMC (89/336/EWG),
fulfils NAMUR recommendation NE 21 and is in CE conformity
with LVD (73/23/EWG).
Conformity has been judged according to the following
standards:
l EMC:
- Emission EN 61326: 2004 (class B)
- Susceptibil
ity EN 6132
6: 2004 including
supplement A
l LVD: EN 61010-1: 2001
VEGABAR 74 is not subject to the pressure device guideline.
1)
2.7 Fulfilling NAMUR recom
mendations
VEGABAR 74 fulfills the following NAMUR recommendations:
l NE 21 (interference resistane and emitted interference)
l NE 43 (signal level for failure
information)
l NE 53 (compatibility sensor and indicating/adjustment
components)
VEGA instruments are generally upward and downward
compatible:
l Sensor
software to DTM VEGABAR 74 HART
l DTM
VEGABAR 74 for adjustment software PACTware™
The parameter adjustment of the basic sensor functions is
independent of the software version. The range of available
functions depends on the respective software version of the
individual components.
The software version of VEGABAR 74 HART can be read out
via PACTware™.
1)
Due to the flush diaphragm, no own pressure compartment is formed.
6 VEGABAR 74 - 4 … 20 mA/HART
For your safety
28432-EN-070718
You can view all software histories on our website www.vega.
com. Make use of this advantage and get registered for update
information via e-mail.
2.8 Safety 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 Exapproved instruments.
2.9 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 certified according to DIN EN ISO 14001.
Please help us fulfil this obligation by observing the environmental instructions in this manual:
l Chapter "Packaging, transport
and
storage"
l Chapter "D isposal"
VEGABAR 74 - 4 … 20 mA/HART 7
For your safety
28432-EN-070718
3 Product description
3.1 Configuration
The scope
of delivery encompasses:
l VEGABAR 74 pressure transmitter
l Documentation
- this
operating instructions manual
- Test certificate for pressure transmitters
- Ex-specific "Safety instructions" (with Ex-versions)
- if necessary, further certificates
VEGABAR 74 consists of the following components:
l Process fitting
with measuring cell
l Housing
with electronics
l Connection cable (direct cable outlet)
The
components are available in different versions.
1
2
3
Fig. 1: Example of a VEGABAR 74 with process fitting G1½ A
1 Connection cable
2 Housing with electronics
3 Process fitting with measuring cell
Scope of delivery
Components
8 VEGABAR 74 - 4 … 20 mA/HART
Product description
28432-EN-070718
3.2 Principle of operation
VEGABAR 74 is a pressure transmitter for use in the paper,
food processing and pharmaceutical industry. Thanks to the
high protection class IP 68/IP 69K it is particularly suitable for
use in humid environment. Depending on the version, it is used
for level, gauge pressure, absolute pressure or vacuum
measurements. Measured products are gases, vapours and
liquids, also with abrasive contents.
The sensor element is the CERTEC
®
measuring cell with
flush, abrasion resistant ceramic diaphragm. The hydrostatic
pressure of the medium or the process pressure causes a
capacitance change in the measuring cell via the diaphragm.
This change is converted into an appropriate output signal and
outputted as measured value.
The CERTEC
®
measuring cell is also equipped with a
temperature sensor. The temperature value can be processed
via the signal output.
Two-wire electronics 4 … 20 mA/HART for power supply and
measured value transmission over the same cable.
The supply voltage range can differ depending on the
instrument version.
The data for power supply are stated in chapter "Technical
data" in the "Supplement".
3.3 Operation
VEGABAR 74 4 … 20 mA/HART can be adjusted with different
adjustment media:
l with external adjustment/indication VEGADIS 12
l an adjustment software according to FDT/DTM stan
dard,
e.g. PACTware™ and PC
l with
a HART handheld
The kind
of adjustment and the adjustment options depend on
the selected adjustment component. The entered parameters
are generally saved in the respecitive sensor, when adjusting
with PACTware™ and PC optionally also in the PC.
Area of application
Functional principle
Supply
VEGABAR 74 - 4 … 20 mA/HART 9
Product description
28432-EN-070718
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 according to DIN EN 24180.
The packaging of standard instruments consists of environ-
ment-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:
l Not
in the open
l Dry and dust free
l Not exposed to corrosive media
l Protected against solar
radiation
l Avoiding mechanical shock and vibration
l Storage and transport temperature see "Supplement -
Technical data - Ambient condi
tions"
l Relative humidity 20 … 85 %
Packaging
Transp
ort
Transport inspection
Storage
Storage and transport tem-
perature
10 VEGABAR 74 - 4 … 20 mA/HART
Product description
28432-EN-070718
4 Mounting
4.1 General instructions
Make sure that
the wetted parts of VEGABAR 74, especially
the seal and process fitting, are suitable for the existing
process conditions such as pressure, temperature etc. as well
as the chemical properties of the medium.
You can find the specifications in chapter "Technical data" in
the "Supplement".
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 housing and connection cable are not exceeded.
1
2
Fig. 2: Temperature ranges
1 Process temperature
2 Ambient temperature
l The connection cable has a capillary for atmospheric
pressure compensation
à Lead the cable end into a dry space or into a suitable
terminal housing.
Information:
VEGA recommends the breather housing VEGABOX 02 or the
indication/adjustment VEGADIS 12. Both contain terminals
and a ventilation filter for pressure compensation. For
mounting outdoors, a suitable protective cover is available.
Materials, wetted parts
Temperature limits
Connection
VEGABAR 74 - 4 … 20 mA/HART 11
Mounting
28432-EN-070718
4.2 Mounting steps
Seal the thread with teflon, hemp or a similar resistant seal
material on the process fitting thread 1½ NPT.
à Screw VEGABAR 74 into the welded socket. Tighten the
hexagon on the process fitting with a suitable wrench.
Wrench size, see chapter "Dimensions".
Seal the flange connections according to DIN/ANSI with a
suitable, resistant seal and mount VEGABAR 74 with suitable
screws.
Use the seal suitable for the respective process fitting. You can
find the components in the line of VEGA accessories in the
supplementary instructions manual "Welded socket and
seals".
Sealing/Screwing in threaded
versions
Sealing/Screwing in flange
versions
Sealing/Screwing in hygienic
fittings
12 VEGABAR 74 - 4 … 20 mA/HART
Mounting
28432-EN-070718
5 Connecting to power supply
5.1 Preparing the
connection
Always keep in mind the following safety instructions:
l Connect only in the complete absence of line voltage
l If overvoltage surges are expected, versions with inte-
grated
overvoltage arresters should be used or external
overvoltage arresters should be installed
Tip:
We recommend the version of VEGABAR 74 with integrated
overvoltage arrester or VEGA type ÜSB62-36G.X as external
overvoltage arreaster.
In hazardous areas you should take note of the appropriate
regulations, conformity and type approval certificates of the
sensors and power supply units.
Power supply and current signal are carried on the same twowire cable. The voltage supply range can differ depending on
the instrument version.
The data for power supply are stated in chapter "Technical
data" in the "Supplement".
Provide a reliable separation of the supply circuit from 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 74.
Bear in mind the following factors regarding supply voltage:
l Outpu
t voltage of the power supply unit can be lower under
nominal
load (with a sensor current of 20.5 mA or 22 mA in
case of fault message)
l Influence
of additional instruments in the circuit (see load
values in chapter "Technical data")
VEGABAR 74 is connected with standard two-wire cable
without screen. An outer cable diameter of 5 … 9 mm ensures
the seal effect of the cable gland when connecting via
VEGABOX 02 or VEGADIS 12. If electromagnetic interference
is expected which is above the test values of EN 61326 for
Note safety instructions
Take note of safety
instructions for Ex
applications
Select power supply
Selecting connection cable
VEGABAR 74 - 4 … 20 mA/HART 13
Connecting to power supply
28432-EN-070718
industrial areas, screened cable should be used. For HART
multidrop operation we recommend as standard practice the
use of screened cable.
1
2
Fig. 3: Connection of VEGABAR 74
1 Direct connection
2 Connection via VEGABOX 02 or VEGADIS 12
If screened cable is necessary, connect the cable screen on
both ends to ground potential. In the VEGABOX 02 or
VEGADIS 12, the screen must be connected directly to the
internal ground terminal. The ground terminal on the outside of
the housing must be connected to the potential equalisation
(low impedance).
If potential equalisation currents are expected, the connection
on the processing side must be made via a ceramic capacitor
(e.g. 1 nF, 1500 V). The low frequency potential equalisation
currents are thus suppressed, but the protective effect against
high frequency interference signals remains.
Take note of the corresponding installation regulations for Ex
applications. In particular, make sure that no potential equalisation currents flow over the cable screen. In case of
grounding on both sides this can be achieved by the use of a
capacitor or a separate potential equalisation.
Cable screening and grounding
Select connection
cable for Ex applications
14 VEGABAR 74 - 4 … 20 mA/HART
Connecting to power supply
28432-EN-070718
5.2 Connection procedure
Proceed as follows:
1 Wire the connection cable up to the connection compart-
ment. The bending radius must be at least 25 mm.
2)
2 Connect the wire ends
to the screw terminals according to
the wiring plan
Proceed as follows:
1 Snap connection housing onto the carrier rail or screw it to
the mounting plate
2 Loosen the cover screws and remove the cover
3 Insert the cable through the cable entry into the connection
housing housing
4 Loosen the screws with a screwdriver
5 Insert the wire ends into the open terminals according to
the wiring plan
6 Tighten the screws with a screwdriver
7 Check the hold of the wires in the terminals by lightly
pulling on them
8 Tighten the compression nut of the cable entry. The seal
ring must completely encircle the cable
9 Connect the supply cable according to steps 3 to 8
10 Screw the housing cover back on
The electrical connection is finished.
2)
The connection cable is already preconfectioned. After shortening the cable, fasten the type plate with support again to the cable.
Direct connection
Via VEGABOX 01 or VEGADIS
12
VEGABAR 74 - 4 … 20 mA/HART 15
Connecting to power supply
28432-EN-070718
5.3 Wiring plan
5
1
2
3
4
Fig. 4: Wire assignment, connection cable
1 brown (+): to power supply or to the processing system
2 blue (-): to power supply or to the processing system
3 yellow: is only required with VEGADIS 12, otherwise connect to minus or
with VEGABOX 01 to terminal 3
3)
4 Screen
5 Breather capillaries with filter element
1
2
+
1 2 3 4 5 6
1 2 3 4 5 6
Fig. 5: Terminal assignment VEGABAR 74
1 To power supply or the processing system
2 Screen
4)
Wire number Wire colour/Polarity VEGABAR 74 terminal
1 brown (+) 1
2 blue (-) 2
3 Yellow 2
Screen Ground
3)
For customer-specific versions already connected with blue (-) when being
shipped.
4)
Connect screen to ground terminal. Connect ground terminal on the outside
of the housing as prescribed. The two terminals are galvanically connected.
Direct connection
Connection via VEGABOX 02
16 VEGABAR 74 - 4 … 20 mA/HART
Connecting to power supply
28432-EN-070718
+
–
+
–
VEGADIS 12
TRANSMITTER
+
4...20mA
+
NOT USED
8 7 6 5 12 11 10 1 2
3
-
OPERATE
ti
ZERO
SPAN
TRANSMITTER
3
4
5
1
2
Fig. 6: Terminal assignment, VEGADIS 12
1 To power supply or the processing system
2 Control instrument (4 … 20 mA measurement)
3 Screen
5)
4 Breather capillaries
5 Suspension cable
Wire number Wire colour/Polarity Terminal VEGADIS
12
1 brown (+) 1
2 blue (-) 2
3 Yellow 3
5)
Connect screen to ground terminal. Connect ground terminal on the outside
of the housing as prescribed. The two terminals are galvanically connected.
Connection via VEGADIS 12
VEGABAR 74 - 4 … 20 mA/HART 17
Connecting to power supply
28432-EN-070718
6 Set up
6.1 Setup steps w
ithout VEGADIS 12
After mounting and electrical connection, VEGABAR 74 is
ready for operation.
à Switch on voltage
The electronics now carries out a self-check for approx. 2
seconds. Then VEGABAR 74 delivers a current of 4 … 20 mA
according to the actual level.
6.2 Setup steps with VEGADIS 12
l zero - measuring range begin
l span - meas
uring range end
l ti - Integration
time
VEGADIS 12
TRANSMITTER
+
4...20mA
+
not used
8765
1211101 2 3
-
-
OPERATE
ti
ZERO
SPAN
TRANSMITTER
1
2
3
Fig. 7: Adjustment elements of VEGADIS 12
1 Rotary switch: choose the requested function
2 [+] key, change value (rising)
3 [-] key, change value (falling)
l With
the rotary switch the requested function is selected
l With the [+] and [-] keys, the signal current
or the
integration time are adjusted
l Finally the rotary switch is set to position "OPERATE"
The set values are transmitted to the EEPROM memory and
remain there even in case of voltage loss.
Proceed as follows for adjustment with VEGADIS 12:
1 Open housing cover
2 Connect hand multimeter to terminals 10 and 12
3 Meas. range begin: Set rotary switch to "zero"
Adjustment volume
Adjustment system
Adjustment steps, adjustment
18 VEGABAR 74 - 4 … 20 mA/HART
Set up
28432-EN-070718
4 Empty the vessel or reduce process pressure
5 Set a current of 4 mA with the [+] and [-] keys
6 Meas. range end: Set rotary switch to "span"
7 Fill the vessel or increase process pressure
8 Set a current of 20 mA with the [+] and [-] keys
9 Operation: Set rotary switch to "OPERATE"
10 Close housing cover
The adjustment data are effective, the output current 4 … 20 mA
corresponds to the actual level.
Proceed as follows for the adjustment of the integration time
with VEGADIS 12:
1 Open housing cover
2 Set rotary switch to "ti"
3 By pushing the [-] key 10-times, make sure that the
integration time is set to 0 sec.
4 For every 1 sec. requested integration time, push the [+]
key once.
5 The integration time is the time required by the output
current signal to reach 90 % of the actual height after a
sudden level change.
6 Set rotary switch to "OPERATE"
7 Close housing cover
The display outputs the current 4 … 20 mA as bar graph and
digital value.
With 4 mA no segment of the bar graph appears, with 20 mA
all segments appear. This assignment is fix.
You can scale the digital value to any value between -9999 …
+9999 via the adjustment module.
Proceed as follows for scaling the indication of VEGADIS 12:
1 Open housing cover
2 Initial value: Set rotary switch to "zero"
3 Set the requested value, e.g. 0 with the [+] and [-] keys
4 Final value: Set the rotary switch to "span"
5 Set the requested value, e.g. 1000 with the [+] and [-] keys
6 Decimal point: Set the rotary switch to "point"
7 With the [+] and [-] keys you can adjust the requested
value, e.g. 8888 (no decimal point)
Adjustment steps, integration
time
Adjustment steps, scaling
VEGABAR 74 - 4 … 20 mA/HART 19
Set up
28432-EN-070718
8 Set rotary switch to "OPERATE"
9 Close housing cover
The adjustment data are effective, the output current 4 … 20 mA
corresponds to the actual level.
20 VEGABAR 74 - 4 … 20 mA/HART
Set up
28432-EN-070718
7 Setup with PACTware™
7.1 Connect the PC with VEG
ACONNECT 3
~
=
2
3
1
4
Power supply
VEGACONNECT 3
TM
Fig. 8: Connecting the PC to the signal cable
1 RS232 connection (with VEGACONNECT 3) or USB connection (with
VEGACONNECT 4)
2 VEGABAR 74
3 HART adapter cable
4 HART resistance 250 Ohm (optional depending on the processing)
Necessary components:
l VEGABAR 74
l PC with PACTware™ and
suitable VEGA DTM
l VEGACONNECT 3 or 4 with HART adapter
cable (art. no.
2.25397)
l HART resistance approx. 250 Ohm
l Power supply unit
Note:
With power supply units with integrated HART resistance
(internal resistance approx. 250 Ohm), an additional external
resistance is not necessary (e.g. VEGATRENN 149A, VEGADIS 371, VEGAMET 381/624/625, VEGASCAN 693). In such
cases, VEGACONNECT 3 can be connected parallel to the
4 … 20 mA cable.
Connecting the PC to the
signal cable
VEGABAR 74 - 4 … 20 mA/HART 21
Setup with PA CTware™
28432-EN-070718
7.2 Connect the PC with VEGACONNECT 4
2
4
3
1
OPEN
TWIST
USB
LOCK
Fig. 9: Connecting the PC via HART to the signal cable
1 VEGABAR 74
2 HART resistance 250 Ohm (optional depending on the processing)
3 Connection cable with 2 mm pins and terminals
4 Processing system/PLC/Voltage supply
Necessary components:
l VEGABAR 74
l PC with PACTware™ and
suitable VEGA DTM
l VEGACONNECT 4
l HART resistance 250 Ohm (optional
depending on
the
processing)
l Power supply unit or processing system
Note:
With power supply units with integrated HART resistance
(internal resistance approx. 250 Ohm), an additional external
resistance is not necessary. This applies, e.g. to the VEGA
instruments VEGATRENN 149A, VEGADIS 371, VEGAMET
381). Also usual Ex separators are most of the time equipped
with a sufficient current limitation resistor. In such cases,
VEGACONNECT 4 can be connected parallel to the 4 … 20 mA
cable.
Connection via HART
22 VEGABAR 74 - 4 … 20 mA/HART
Setup with PACTware™
28432-EN-070718
7.3 Parameter adjustment with PACTware™
Further setup steps are described in the operating instructions
manual "DTM Collection/PACTware™" attached to each CD
and which can also be downloaded from our homepage. A
detailed description is available in the online help of
PACTware™ and the VEGA DTMs.
Note:
Keep in mind that for setup of VEGABAR 74, DTM-Collection
in the actual version must be used.
All currently available VEGA DTMs are provided in the DTM
Collection on CD and can be obtained from the responsible
VEGA agency for a token fee. This CD includes also the up-to-
date PACTware™ version. The basic version of this DTM
Collection incl. PACTware™ is also available as a free-of-
charge download from the Internet.
Go via
www.vega.com and "Downloads" to the item "Soft-
ware".
7.4 Parameter adjustment with AMS™ and PDM
For VEGA sensors, instrument descriptions for the adjustment
programs AMS™ and PDM are available as DD or EDD. The
instrument descriptions are already implemented in the current
versions of AMS™ and PDM. For older versions of AMS™ and
PDM, a free-of-charge download is available via Internet.
Go via
www.vega.com and "Downloads" to the item "Soft-
ware".
7.5 Saving the parameter adjustment data
It is recommended to document or save the parameter
adjustment data. They are hence available for multiple use or
service purposes.
The VEGA DTM Collection and PACTware™ in the licensed,
professional version provide suitable tools for systematic
project documentation and storage.
VEGABAR 74 - 4 … 20 mA/HART 23
Setup with PA CTware™
28432-EN-070718
8 Maintenance and fault rectification
8.1 Maintenance
When used as
directed in normal operation, VEGABAR 74 is
completely maintenance free.
8.2 Fault clearance
The operator of the system is responsible for taken suitable
measures to remove interferences.
VEGABAR 74 offers maximum reliability. Nevertheless faults
can occur during operation. These may be caused by the
following, e.g.:
l Sensor
l Process
l Supply
l Signal processing
The first
measures
to be taken are to check the output signals
as well as to evaluate the error messages via the indicating
and adjustment module. The procedure is described below.
Further comprehensive diagnostics can be carried out on a PC
with the software PACTware™ and the suitable DTM. In many
cases, the causes can be determined in this way and faults
can be rectified.
However, if these measures are not successful, call the VEGA
service hotline in urgent cases under the phone no. +49 1805
858550.
The hotline is available to you 7 days a week round-the-clock.
Since we offer this service world-wide, the support is only
available in the English language. The service is free of
charge, only the standard telephone costs will be charged.
Connect a handheld multimeter in the suitable measuring
range according to the wiring plan.
? 4 … 20 mA signal not stable
l Level fluctuations
à Adjust
integration
time via PAC
Tware™
l no atmospheric pressure compensation
à Check the capillaries
and cut them clean
Reaction in case of failures
Causes of malfunction
Fault rectification
24 hour service hotline
Checking the 4 … 20 mA signal
24 VEGABAR 74 - 4 … 20 mA/HART
Maintenance and fault rectification
28432-EN-070718
à Check the pressure compensation in the housing and
clean the filter element, if necessary
? 4 … 20 mA signal missing
l Wrong connection to power supply
à Check connection according
to chapter "Connection
steps" and if necessary, correct according to chapter
"Wiring plan"
l No
voltage supply
à Check cables for
breaks; repair if necessary
l supply voltage too low or load resistance too high
à Check, adapt if necessary
? Current
signal 3.6 mA; 22 mA
l electronics module or measuring cell defective
à Exchange
instrument or return
instrument for repair
In Ex applications, the regulations for the wiring of intrinsically
safe circuits must be observed.
Depending on the failure reason and measures taken, the
steps described in chapter "Set up" must be carried out again,
if necessary.
8.3 Instrument repair
If a repair is necessary, please proceed as follows:
You can download a return form (23 KB) from the Internet on
our homepage
www.vega.com under: "Downloads - Forms
and certificates - Repair form".
By doing this you help us carry out the repair quickly and
without having to call back for needed information.
l Print and fill out one
form per instrument
l Clean the instrument and pack it damage-proof
l Attach the completed form and, if need be, also
a safety
data sheet outside on the packaging
l Please ask the agency serving you for the address of your
return shipment. You can find the respective agency on our
website
www.vega.com under: "Company - VEGA world-
wide"
Reaction after fault rectification
VEGABAR 74 - 4 … 20 mA/HART 25
Maintenance and fault rectification
28432-EN-070718
9 Dismounting
9.1 Dismounting steps
Warning:
Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel, high temperatures,
corrosive or toxic products etc.
Take note of chapters "Mounting" and "Connecting to power
supply" and carry out the listed steps in reverse order.
9.2 Disposal
The instrument consists of materials which can be recycled by
specialised recycling companies. We use recyclable materials
and have designed the electronics to be easily separable.
WEEE directive 2002/96/EG
This instrument is not subject to the WEEE directive 2002/96/
EG and the respective national laws (in Germany, e.g.
ElektroG). Pass the instrument directly on to a specialised
recycling company and do not use the municipal collecting
points. These may be used only for privately used products
according to the WEEE directive.
Correct disposal avoids negative effects to persons and
environment and ensures recycling of useful raw materials.
Materials: see chapter "Technical data"
If you cannot dispose of the instrument properly, please
contact us about disposal methods or return.
26 VEGABAR 74 - 4 … 20 mA/HART
Dismounting
28432-EN-070718
10 Supplement
10.1 Technical data
General data
Manufacturer VEGA Grieshaber KG
, D-77761 Schiltach
Type name VEGABAR 74
Parameter, pressure Gauge pressure, absolute pressure, vacuum
Measuring principle Ceramic-capacitive, dry measuring cell
Communication interface None
Materials and weights
Material 316L corresponds to 1.4404 or 1.4435
Materials, wetted parts
- Process fitting 316L
- Diaphragm sapphire ceramic
®
(99.9 % oxide ceramic)
- Seal FKM (e.g. Viton), Kalrez 6375, EPDM, Chem-
raz 535
- Seal process fitting thread G½ A,
G1½ A
Klingersil C-4400
Materials, non-wetted parts
- Housing 316L
- Ground terminal 316Ti/316L
- Connection cable PUR, FEP, PE
- type label support on cable PE-HART
Weight 0.8 … 8 kg (1.8 … 17.6 lbs), depending on
process fitting
Output variable
Output signal 4 … 20 mA/HART
Failure signal 22 mA (3.6 mA), adjustable
Max. output current 22.5 mA
Damping (63 % of the input variable) 0 … 10 s, adjustable
Step response or adjustment time 70 ms (ti: 0 s, 0 … 63 %)
Fulfilled NAMUR recommendations NE 43
Additional output parameter - temperature
Processing is made via HART-Multidrop
VEGABAR 74 - 4 … 20 mA/HART 27
Supplement
28432-EN-070718
Range -50 … +150 °C (-58 … +302 °F)
Resolution 1 °C (1.8 °F)
Accuracy
- in the range of 0 … +100°C
(+32 … +212 °F)
±3 K
- in the range of -50 … 0 °C
(-58 … +32 °F) and +100 … +150 °C
(+212 … +302 °F)
typ. ±4 K
Input variable
Adjustment
Zero adjustable -20 … +95 % of the nominal measuring range
Span adjustable 3.3 … +120 % of the nominal measuring range
Recommended max. turn down 10:1
Nominal measuring ranges and overload resistance
Nominal range Overload, max. pressure6)Overload, min. pressure
Gauge pressure
0 … 0.1 bar/0 … 10 kPa 15 bar/1500 kPa -0.2 bar/-20 kPa
0 … 0.2 bar/0 … 20 kPa 20 bar/2000 kPa -0.4 bar/-40 kPa
0 … 0.4 bar/0 … 40 kPa 30 bar/3000 kPa -0.8 bar/-80 kPa
0 … 1 bar/0 … 100 kPa 35 bar/3500 kPa -1 bar/-100 kPa
0 … 2.5 bar/0 … 250 kPa 50 bar/5000 kPa -1 bar/-100 kPa
0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa -1 bar/-100 kPa
0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa -1 bar/-100 kPa
0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa -1 bar/-100 kPa
0 … 60 bar/0 … 6000 kPa 200 bar/20000 kPa -1 bar/-100 kPa
-1 … 0 bar/-100 … 0 kPa 35 bar/3500 kPa -1 bar/-100 kPa
-1 … 1.5 bar/-100 … 150 kPa 50 bar/5000 kPa -1 bar/-100 kPa
-1 … 5 bar/-100 … 500 kPa 65 bar/6500 kPa -1 bar/-100 kPa
-1 … 10 bar/-100 … 1000 kPa 90 bar/9000 kPa -1 bar/-100 kPa
-1 … 25 bar/-100 … 2500 kPa 130 bar/13000 kPa -1 bar/-100 kPa
-1 … 60 bar/-100 … 6000 kPa 300 bar/30000 kPa -1 bar/-100 kPa
-0.05 … 0.05 bar/-5 … 5 kPa 15 bar/1500 kPa -0.2 bar/-20 kPa
-0.1 … 0.1 bar/-10 … 10 kPa 20 bar/2000 kPa -0.4 bar/-40 kPa
6)
Limited to 200 bar according to the pressure device directive.
Supplement
28 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
Nominal range Overload, max. pres-
sure6)
Overload, min. pressure
-0.2 … 0.2 bar/-20 … 20 kPa 30 bar/3000 kPa -0.8 bar/-80 kPa
-0.5 … 0.5 bar/-50 … 50 kPa 35 bar/3500 kPa -1 bar/-100 kPa
Absolute pressure
0 … 0.1 bar/0 … 10 kPa 15 bar/1500 kPa
0 … 1 bar/0 … 100 kPa 35 bar/3500 kPa
0 … 2.5 bar/0 … 250 kPa 50 bar/5000 kPa
0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa
0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa
0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa
0 … 60 bar/0 … 6000 kPa 200 bar/20000 kPa
Reference conditions and influencing variables (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
- Temperature +15 … +25 °C (+59 … +77 °F)
- Relative humidity 45 … 75 %
- Air pressure 860 … 1060 mbar/86 … 106 kPa
(12.5 … 15.4 psi)
Determination of characteristics Limit point adjustment according to
IEC 61298-2
Characteristics linear
Reference installation position upright, diaphragm points downward
Influence of the installation position <0.2 mbar/20 Pa (0.003 psi)
Deviation determined according to the limit point method according to IEC 60770
7)
Applies
to digital HART interface as
well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. T urn down (TD) = nominal measuring range/set span.
Deviation
- Turn down 1:1 up to 5:1 <0.075 %
- Turn down up to 10:1 <0.015 % x TD
Deviation with absolutely flush process fittings EV, FT
- Turn down 1:1 up to 5:1 <0.05 %
- Turn down up to 10:1 <0.01 % x TD
7)
Incl. non-linearity, hysteresis and non-repeatability.
Supplement
VEGABAR 74 - 4 … 20 mA/HART 29
28432-EN-070718
Deviation with absolute pressure measuring range 0.1 bar
- Turn down 1:1 up to 5:1 <0.25 % x TD
- Turn down up to 10:1 <0.05 % x TD
Influence of the product or ambient temperature
Applies to digital HART interface as well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. T urn down (TD) = nominal measuring range/set span.
Average temperature coefficient of the zero signal
In the compensated temperature range of 0 … +100 °C (+212 °F), reference temperature
20 °C (68 °F):
Average temperature coefficient of the zero signal
- Turn down 1:1 <0.05 %/10 K
- Turn down 1:1 up to 5:1 <0.1 %/10 K
- Turn down up to 10:1 <0.15 %/10 K
Outside the compensated temperature range:
Average temperature coefficient of the zero signal
- Turn down 1:1 typ. <0.05 %/10 K
Thermal change of the current output
Applies also to the analogue 4 … 20 mA current output and refers to the set span.
Thermal change, current output <0.15 % at -40 … +80 °C (-40 … +176 °F)
Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)
Applies to digital HART interface as well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. T urn down (TD) = nominal measuring range/set span.
Long-term drift of the zero signal <(0.1 % x TD)/1 year
Total deviation (similar to DIN 16086)
The total deviation (max. practical deviation) is the sum of basic accuracy and long-term
stability:
F
total
= F
perf
+ F
stab
F
perf
= √((FT)2+ (FKl)2)
With
- F
total
: Total deviation
- F
perf
: Basic accuracy
- F
stab
: Long-term drift
Supplement
30 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
- FT: Temperature coefficient (influ-
ence of medium or ambient temperature)
- F
Kl
: Deviation
Ambient conditions
Ambient, storage and transport temperature
- Connection cable PE -40 … +60 °C (-40 … +140 °F)
- Connection cable PUR, FEP -40 … +85 °C (-40 … +185 °F)
Process conditions
The specifications of the pressure stage are used as an overview. The specifications on the
type plate are applicable.
Pressure stage, process fitting
- Thread 316L PN 60
- Thread Alu PN 25
- Hygienic fittings 316L PN 10, PN 16, PN 25, PN 40
- Flange 316L, flange with extension
316L
PN 40 or 150 lbs, 300 lbs
Product temperature depending on the measuring cell seal
- FKM (e.g. Viton) -20 … +100 °C (-4 … +212 °F)
- EPDM -40 … +100 °C (-40 … +212 °F), 1 h: 140 °C/
284 °F cleaning temperature
- Kalrez 6375 (FFKM) -10 … +100 °C (+14 … +212 °F)
- Chemraz 535 -30 … +100 °C (-22 … +212 °F)
Vibration resistance mechanical vibrations with 4 g and 5 … 100 Hz
8)
Shock resistance Acceleration 100 g/6 ms
9)
Electromechanical data
Connection cable
- Configuration four
wires, one suspension cable, one breather
capillary, screen braiding, metal foil, mantle
- Wire cross-section 0.5 mm² (AWG no. 20)
- wire resistance <0.036 Ohm/m (0.011 Ohm/ft)
- Standard length 6 m (19.685 ft)
- max. length with VEGADIS 12 200 m (656.168 ft)
8)
Tested according to the regulations of German Lloyd, GL directive 2.
9)
Tested according to EN 60068-2-27.
Supplement
VEGABAR 74 - 4 … 20 mA/HART 31
28432-EN-070718
- Min. bending radius at 25 °C/77 °F 25 mm (0.985 in)
- Diameter approx. 8 mm (0.315 in)
- Colour - standard PE Black
- Colour - standard PUR Blue
- Colour - Ex-version Blue
Voltage supply
Supply voltage
- Non-Ex instrument 12 … 36 V DC
- EEx ia instrument 12 … 29 V DC
Permissible residual ripple
- <100 Hz U
ss
<1 V
- 100 Hz … 10 kHz U
ss
<10 mV
Load see diagram
1000
710
500
250
12 18
1614 20 22 24 26 28 29 30 32 34 36
Ω
V
1
4
2
3
Fig. 10: Voltage diagram VEGABAR 74
1 HART load
2 Voltage limit Ex instrument
3 Voltage limit non-Ex instrument
4 Voltage supply
Load in conjunction with VEGADIS 12 see diagram
Supplement
32 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
Ω
450
712,5
250
18 24 29 3633
3
4
2
1
V
Fig. 11: Voltage diagram VEGABAR 74 with VEGADIS 12
1 HART load
2 Voltage limit Ex instrument
3 Voltage limit non-Ex instrument
4 Voltage supply
Integrated overvoltage protection
Nominal leakage current (8/20 µs) 10 kA
Min. response time <25 ns
Electrical protective measures
Protection IP 68 (25 bar)/IP 69K
Overvoltage category III
Protection class III
Approvals
10)
ATEX ia ATEX
II 1G
EEx ia IIC
T6; ATEX II 2G
EEx ia IIC T6
Ship approvals GL, LRS, ABS, CCS, RINA, DNV
Others WHG
10)
Deviating data in Ex applications: see separate safety instructions.
Supplement
VEGABAR 74 - 4 … 20 mA/HART 33
28432-EN-070718
10.2 Dimensions
VEGABAR 74 - threaded fitting
GM
GI
GR
GV GG/GN
GG
G½A
SW 27mm
(1 1/16")
G½A
SW 27mm
(1 1/16")
G1½A
SW 46 mm
(1 13/16")
G1½A
NPT1½
SW 46 mm
(1 13/16")
ø 55 mm
(2
11/
64
")
263,5 mm (10
3
/
8
")
70 mm (2
3
/
4
")
252 mm (9
59
/
64
")
20 mm
(
25
/
64
")
253 mm (9
61
/
64
")
23 mm
(
29
/
32
")
3 mm
(
1
/
8
")
ø 41,6 mm
(1
41
/
64
")
215,5 mm (8
31
/
64
")
22 mm
(
25
/
64
")
111,5 mm (4
25
/
64
")
ø 55 mm
(2
11
/
64
")
64,5 mm
(2
35
/
64
")
69,5 mm
(2
47
/
64
")
ø 3 mm (
1
/
8
")
ø 6 mm (
15
/
64
")
½”NPT
¼”NPT
SW 27mm
(1 1/16")
255 mm (10
3
/
64
")
25 mm
(
63
/
64
")
15 mm
(
19
/
32
")
Fig. 12: VEGABAR 74 threaded fitting: GV = G½ A manometer connection EN 837, GI = G½ A inner G¼ A, GG = G1½ A,
GN = 1½ NPT, GM = G1½ A 70 mm, GR = ½ NPT inner ¼ NPT
Supplement
34 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
VEGABAR 74 - hygienic fitting 1
CC
ø 41,6 mm
(1
41
/
64
")
SW 46 mm
(1 13/16")
SW 46 mm
(1 13/16")
SW 46 mm
(1 13/16")
TA RA/RBTB
ø 84 mm
(3 5/16")
ø 78 mm / ø 92 mm
(3 5/64" / 3 5/8")
ø 66 mm
(2 19/32" )
218,5 mm (8
39
/
64
")
217 mm (8
35
/
64
")
218,5 mm (8
39
/
64
")
CA
217 mm (8
35
/
64
")
ø 64 mm
(2
33
/
64
")
ø 51 mm
(2
1
/
64
")
217 mm (8
35
/
64
")
LA
218,5 mm (8
39
/
64
")
ø 78 mm
(3 5/64")
111,5 mm (4
25
/
64
")
Fig. 13: VEGABAR 74 hygienic fitting: CC = Tri-Clamp 1½", CA = Tri-Clamp 2", LA = hygienic fitting with compression nut
F40, TA = Tuchenhagen Varivent DN 32, TB = Tuchenhagen Varivent DN 25, RA/RB = bolting DN 40/DN 50 according to
DIN 11851
Supplement
VEGABAR 74 - 4 … 20 mA/HART 35
28432-EN-070718
VEGABAR 74 - hygienic fitting 2
ø 41,6 mm
(1
41/
64
")
217 mm (8
35
/
64
")
KA
AA
ø 66 mm
(2
19
/
32
")
ø 105 mm
(4
9
/
64
")
AB
ø 70 mm
(2
3
/
4
")
ø 150 mm
(5
29
/
32
")
ø 95 mm
(3
47
/
64
")
KH
ø 60 mm
(2
23
/
64
")
217 mm (8
35
/
64
")
217 mm (8
35
/
64
")
217 mm (8
35
/
64
")
SD/SE
ø 86 mm
(3
25
/
64
")
222,5 mm (8
49
/
64
")
169 mm (6
21
/
32
")
62 mm
(2
7
/
16
")
G1A
SW 75 mm
(2 61/64")
Fig. 14: VEGABAR 74 KA/KH = cone DN 40, AA = DRD, SD/SE = Anderson 3" long/short fitting
Supplement
36 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
VEGABAR 74 - flange connection
d4
k
D
f
b
EA, FB, FE, FQ, FH, FI
TV, TS
d5
R
L
d2
197,5 mm (7
25
/
32
")
ø 41,6 mm
(1
41
/
64
")
3
5
/
8
"
7
1
/
2
"
1/
8
"
1/
8
"
1/
8
"
2
7
/
8
"
11
/
16
" 4xø
5/
8
"
4xø
5
/
8
"
4xø
5/
8
"
3
14
/
16
"
4
3
/
4
"
6 6
3
/
4
"
3
/
4
"
DN PN D k
b
EA
FB
FE
d2 d4 f
- -
- -
- -
- -
- -
- -
R L d5
R L
d5
DN PN D k
b
TV 50 40
TS 80 40
d2 d4 f R L d5
FQ 1 ½" 150 5"
6" FH 2" 150
" lbs D b k d2 d4 f
FI 3" 150
1
2
3
4
3
15
/
32
"
4
1
/
64
"
5
7
/
16
"
1/
8
"
1/
8
"
1/
8
"
4xø
45
/
64
"
4xø
45
/
64
"
8xø
45
/
64
"
4
21
/
64
"
4
59
/
64
"
6
19
/
64
"
5
29
/
32
"
6
1
/
2
"
7
7
/
8
"
45
/
64
"
25
/
32
"
15
/
16
"
1
1
/
2
"
1
1
/
2
"
4
1
/
64
"
5
7
/
16
"
1/
8
"
1/
8
"
4xø
45
/
64
"
8xø
45
/
64
"
4
59
/
64
"
6
19
/
64
"
6
1
/
2
"
7
7
/
8
"
25
/
32
"
15
/
16
"
40 40
50 40
80 40
Fig. 15: VEGABAR 74 - flange connection
1 Flange connection according to DIN 2501
2 Flange fitting according to ANSI B16.5
3 Flange with extension
4 Order-specific
Supplement
VEGABAR 74 - 4 … 20 mA/HART 37
28432-EN-070718
VEGABAR 74 - threaded fitting for paper industry
64,5mm
(2
35
/
64
")
BA/BB
215,5mm (8
31
/
64
")
SW46
M44x1,25
174mm (6
27
/
32
")
ø 41,6mm
(1
41
/
64
")
Fig. 16: VEGABAR 74 - connection for paper industry: BA/BB = M44x1.25
Supplement
38 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
VEGABAR 74 - extension fitting for paper industry
FT/EV
175 mm (6
57
/
64
")
154 mm (6
1
/
16
")L
134 mm (5
9
/
32
")
ø 41,6 mm
(1
41
/
64
")
ø 41,6 mm
(1
41
/
64
")
ø 38 mm
(1
1
/
2
")
ø 48 mm
(1
57/
64
")
ø 115 mm
(4
17
/
32
")
23 mm
(
29
/
32
")
18 mm
(
45
/
64
")
2 mm
(
5
/
64
")
ø 115 mm
(4
17
/
32
")
16 mm
(
5
/
8
")
ø 85 mm
(3
11/
32
")
ø 14 mm
(
35
/
64
")
EG
64,5 mm
(2
35/
64
")
Fig. 17: VEGABAR 74 - extension fitting for paper industry: EV/FT = absolutely flush for pulper (EV 2-times flattened), EG =
extension for ball valve fitting (L = order-specific)
Supplement
VEGABAR 74 - 4 … 20 mA/HART 39
28432-EN-070718
10.3 Industrial property rights
VEGA product lines are global protected by industrial property rights.
Further information see http://www.vega.com.
Only in U.S.A.: Further information see patent label at the sensor housing.
VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte.
Nähere Informationen unter http://www.vega.com.
Les lignes de produits VEGA sont globalement protégées par des droits de
propriété intellectuelle.
Pour plus d'informations, on pourra se référer au site http://www.vega.com.
VEGA lineas de productos están protegidas por los derechos en el campo de la
propiedad industrial.
Para mayor información revise la pagina web http://www.vega.com.
Линии продукции фирмы ВЕГА защищаются по всему миру правами на
интеллектуальную собственность.
Дальнейшую информацию смотрите на сайте http://www.vega.com.
VEGA系列产品在全球享有知识产权保护。
进一步信息请参见网站<http://www.vega.com>。
10.4 Trademark
All brands used as well as trade and company names are
property of their lawful proprietor/originator.
Supplement
40 VEGABAR 74 - 4 … 20 mA/HART
28432-EN-070718
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VEGABAR 74 - 4 … 20 mA/HART 41
28432-EN-070718
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42 VEGABAR 74 - 4 … 20 mA/HART
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VEGABAR 74 - 4 … 20 mA/HART 43
28432-EN-070718
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
Phone +49 7836 50-0
Fax +49 7836 50-201
E-mail: info@de.vega.com
www.vega.com
ISO 9001
All statements concerning scope of delivery, application,
practical use and operating conditions of the sensors and
processing systems correspond to the information avail-
able at the time of printing.
© VEGA Grieshaber KG, Schiltach/Germany 2007
Subject to change without prior notice 28432-EN-070718
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