VEGA FLEX67 User Manual

Operating Instructions

VEGAFLEX 67

-200 … +400 °C
4 … 20 mA/HART - two-wire

Document ID:

32311

Guided Microwave

Contents

Contents

1 About this document

1.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Symbolism used . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 For your safety

2.1 Authorised personnel . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Warning about misuse . . . . . . . . . . . . . . . . . . . . . . .

2.4 General safety instructions . . . . . . . . . . . . . . . . . . . .

2.5 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 Fulfillment of NAMUR recommendations . . . . . . . . . .

2.7 Safety instructions for Ex areas . . . . . . . . . . . . . . . . .

2.8 Manufacturer declaration for zone 2. . . . . . . . . . . . . .

2.9 Environmental instructions. . . . . . . . . . . . . . . . . . . . .

3 Product description

3.1 Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Packaging, transport and storage . . . . . . . . . . . . . ..

4 Mounting

4.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Instructions for installation. . . . . . . . . . . . . . . . . . . . .

4
4
4

5
5
5
5
6
6
6
6
6

7

8
11
11

12
13

5 Connecting to power supply

5.1 Preparing the connection . . . . . . . . . . . . . . . . . . . . .

5.2 Connection procedure. . . . . . . . . . . . . . . . . . . . . . . .

5.3 Wiring plan, single chamber housing . . . . . . . . . . . . .

5.4 Wiring plan, double chamber housing . . . . . . . . . . . .

5.5 Wiring plan, Ex-d double chamber housing . . . . . . . .

5.6 Wiring plan - version IP 66/IP 68, 1 bar . . . . . . . . . . .

6 Set up with the indicating and adjustment module PLICSCOM

6.1 Short description . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Insert indicating and adjustment module. . . . . . . . . . .

6.3 Adjustment system . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4 Setup steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5 Menu schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.6 Saving the parameter adjustment data. . . . . . . . . . . .

7 Set up with PACTware and other adjustment programs

7.1 Connect the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Parameter adjustment with PACTware . . . . . . . . . . . .

7.3 Parameter adjustment with AMS™ and PDM . . . . . . .

7.4 Saving the parameter adjustment data. . . . . . . . . . . .

2 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

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17
18
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21
23

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36

37
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39

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8 Maintenance and fault rectification

8.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Remove interferences . . . . . . . . . . . . . . . . . . . . . . . .

8.3 Exchanging the electronics module . . . . . . . . . . . . . .

8.4 Software update . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.5 Instrument repair . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Dismounting

9.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . .

9.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Supplement

10.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

10.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.3 Industrial property rights . . . . . . . . . . . . . . . . . . . . . .

10.4 Trademark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

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40
41
42
43

44
44

45
57
61
61

Supplementary documentation

Information:

Supplementary documents appropriate to the ordered version come
with the delivery. You can find them listed in chapter "Product

description".

Instructions manuals for accessories and replacement parts

Tip:

To ensure reliable setup and operation of your VEGAFLEX 67, we
offer accessories and replacement parts. The corresponding doc­umentations are:

l 27720 - VEGADIS 61
l 30207 - Electronics module VEGAFLEX series 60
l 34296 - Protective cover
l 31088 - Flanges according to DIN-EN-ASME-JIS-GOST
l 30391 - Spacer

Editing status: 2012-03-19

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 3

1 About this document

1 About this document

1.1 Function

This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important
instructions for maintenance and fault rectification. Please read this
information before putting the instrument into operation and kee p this
manual accessible in the immediate vicinity of the device.

1.2 Target 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.

1.3 Symbolism used

Information, tip, note

This symbol indicates helpful additional information.

Caution: If this warning is ignored, faults or malfunctions can
result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.

Ex a pplications

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 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

2 For your safety

2 For your safety

2.1 Authorised personnel

All operations described in this operating instructions manual must be
carried out only by trained specialist personnel authorised by the plant
operator.

During work on and with the device the required personal protective
equipment must always be worn.

2.2 Appropriate use

VEGAFLEX 67 is a sensor for continuous interface measurement in
liquids.

You can find detailed information on the application range in chapter

"Product description".

Operational reliability is ensured only if the instrument is properly u sed
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.

2.3 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 country­specific 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.

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 5

2 For your safety

2.5 CE conformity

This device fulfills the legal requirements of the applicable EC
guidelines. By attaching the CE mark, VEGA provides a confirmation
of successful testing. You can find the CE conformity declaration in the
download area of "

www.vega.com".

2.6 Fulfillment of NAMUR recommendations

The device fulfills the requirements of the applicable NAMUR
recommendations.

2.7 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 Ex-approved
instruments.

2.8 Manufacturer declaration for zone 2

In conformity with DIN EN 60079-15/2005 VEGAFLEX 67 is suitable
for use in zone 2.

The operator must use the instrument as it was intended to be used
and follow the specifications of the following documents:

l this operating instructions manual
l the manufacturer declaration 32905 (download under "

com")

l the applicable installation regulations

www.vega.

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 "Disposal"

6 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

3 Product description

3.1 Structure

3 Product description

Scope of delivery

Constituent parts

The scope of delivery encompasses:

l Level sensor VEGAFLEX 67
l Documentation

- this operating instructions manual

- Operating instructions manual 27835 "Indicating and adjust-

ment module PLICSCOM" (optional)

- Supplementary instructions manual 31708 "Heating for in-
dicating and adjustment module" (optional)

- Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors" (optional)

- Ex-specific "Safety instructions" (with Ex versions)

The VEGAFLEX 67 consists of the components:

l Process fitting with probe
l Housing with electronics
l Housing cover, optionally available with indicating and adjustment

module

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 7

1
2

3

3 Product description

Fig. 1: VEGAFLEX 67 in cable version with plastic housing
1 Housing cover with integrated indicating and adjustment module (optional)

2 Housing with electronics
3 Process fitting

Type label

The type label contains the most important data for identification and
use of the instrument:

l Article number
l Serial number
l Technical data
l Article 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.

3.2 Principle of operation

Application range

8 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

VEGAFLEX 67 is a level sensor with coax, rod or cable probe for

continuous interface measurment.

32311-EN-120329

3 Product description

It is designed for industrial use in all areas of process technology and
can be used in liquids.

Functional principle

Prerequisites for inter-

face measurement

High frequency microwave impulses are guided along a steel cable or
rod or a rod inside a steel tube. When reaching the product surface, a
part of the microwave impulses is reflected. The other part passes the
upper product and is reflected a second time by the interface. The
running times to the two product layers are processed by the
instrument.

Upper medium (L2)

l The upper medium must not be conductive
l The dielectric figure of the upper medium must be known (input

required). Min. dielectric figure: rod version 1.7; coax version 1.4.
You can find a list with the dielectric figures on our home page:

www.vega.com

l The composition of the upper medium must be stable, no varying

products or mixtures

l The upper medium must be homogeneous, no stratifications within

the medium

l Min. thickness of the upper medium 100 mm
l Clear separation from the lower medium, no emulsion phase, no

mull layer

l If possible, no foam on the surface

Lower medium (L1)

l The dielectric figure must be 10 higher than the dielectric figure of

the upper medium, preferably electrically conductive. Example:
upper medium dielectric figure 2, lower medium at least dielectric

figure 12

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 9

TS

d1

h1

h2

d2

1

L2

L1

3 Product description

Fig. 2: Interface measurement
1 Reference plane

d1 Distance to the interface (HART value 1)
d2 Distance to the level (HART value 3)
TS Thickness of the upper medium (d1 - d2)
h1 Height - Interface
h2 Height - Level

L1 Lower medium
L2 Upper medium

Output signal

The interface is processed directly by the sensor.

The analogue output (4 … 20 mA) transmits the height of the interface
(h1) in percent. This is also the value that is adjusted.

The display of PLICSCOM and PACTware outputs the distance to the

interface (d1) in m(d).

The HART protocol can transmit the distance to the interface - HART
value 1 (d1) and the distance to the level (d2) - HART value 3.

The values can be processed e.g. with a HART interface module (HIM)
or with a VEGAMET 625. VEGAMET 625 can also generate the
difference out of the two values.

Voltage supply

4 … 20 mA/HART two-wire electronics for voltage supply and
measured value transmission on the same cable.

The supply voltage range can differ depending on the instrument
version.

The data for power supply are specified in chapter "Technical data".

The optional background lighting of the indicating and adjustment

module is powered by the sensor. A certain level of operating voltage
is required for this. You can find the exact voltage specifications in
chapter "Technical data".

10 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

3 Product description

The optional heating requires its own operating voltage. You can find
details in the supplementary instructions manual "Heating for indicat-

ing and adjustment module".

This function is generally not a vailable for approved instruments.

3.3 Operation

The instrument can be adjusted with the following adjustment media:

l With indicating and adjustment module
l with the suitable VEGA DTM in conjunction with an adjustment

software according to the FDT/DTM standard, e.g. PACTware and
PC

l with manufacturer-specific adjustment programs AMS™ or PDM
l With a HART handheld

3.4 Packaging, transport and storage

Packaging

Transport

Transport inspection

Storage

Storage and transport

temperature

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 environment­friendly, recyclable cardboard. For special versions, PE foam or PE foil
is also used. Dispose of the packaging material via specialised
recycling companies.

Transport must be carried out 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 chapter "Supplement -

Technical data - Ambient conditions"

l Relative humidity 20 … 85 %

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 11

4 Mounting

4 Mounting

4.1 General instructions

Suitability for the pro­cess conditions

Mounting position

Welding work

Handling

Moisture

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.

Select an installation position you can easily reach for mounting and
connecting as well as later retrofitting of an indicating and adjustment
module. The housing can be rotated by 330° without the use of any
tools. Y ou can also install the indicating and adjustment module in four
different positions (each displaced by 90°).

Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.

With threaded versions, the housing must not be used to screw in the
instrument! Applying tightening forces on the housing can damage its
internal parts.

Use the hexagon for screwing in.

Use the recommended cables (see chapter "Connecting to power

supply") and tighten the cable gland.

You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry. Rain and condensation water can thus drain off. This
applies mainly to outdoor mounting as well as installation in areas
where high humidity is expected (e.g. through cleaning processes) or
on cooled or heated vessels.

12 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

Fig. 3: Measures against moisture penetration

4 Mounting

Measuring range

Pressure

Mounting position

The reference plane for the measuring range of the sensors is the
sealing surface of the thread or flange.

Keep in mind that a min. distance must be maintained below the
reference plane and p ossibly also at the end of the probe ­measurement in these areas is not possible (dead band). Particularly
the cable length cannot be used all the way to the end because
measurement in the area of the gravity weight is not possible. These
dead bands are listed in chapter "Technical data". Keep in mind for the
adjustment that the default setting for the measuring range refers to
water.

The process fitting must be sealed if there is gauge or low pressure in
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.

The max. permissible pressure is specified in chapter "Technical data"
or on the type label of the sensor.

4.2 Instructions for installation

When mounting the cable and rod versions of VEGAFLEX 67 keep at
least a distance of 300 mm (11.81 in) to other vessel installations or to
the vessel wall.

During operation, the probe must not touch any installations or the
vessel wall. If necessary, fasten the probe end.

In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
down to the lowest point of the bottom. When using the cable version,

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 13

4 Mounting

keep in mind that measurement down to the tip of the probe is not
possible. The exact value of the min. distance (lower dead band) is
stated in chapter "Technical data".

Fig. 4: Vessel with conical bottom

Inflowing medium

Make sure that the probe is not subjected to strong lateral forces.
Mount VEGAFLEX 67 at a position in the vessel where no

disturbances, e.g. from filling openings, agitators, etc., can occur.

Fig. 5: Lateral load

Extreme vibration caused by the system, e.g. due to agitators or
turbulence in the vessel from inflowing medium, can cause the coax
probe of VEGAFLEX 67 to vibrate in resonance. With coax probes of

14 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

1

2

4 Mounting

more than 1 m (3.281 in) length, you must secure the probe by
fastening a suitable insulated brace or guy directly above the end of
the rod.

Fixing

Temperature insulation

If there is a danger of the probe touching the vessel wall during
operation due to product movements or agitators etc., the measuring
probe should be securely fixed.

In the gravity weight there is a thread (M12), e.g. for a ring bolt
(optional) - (article no. 2.27424).

Make sure that the probe cable is not completely taut. Avoid tensile
loads on the cable.

Avoid undefined cable-vessel connections, i.e. the connection must be
either grounded reliably or isolated reliably. Any deviation from this
requirement can lead to measurement errors.

VEGAFLEX 67 should be integrated in the vessel insulation. This
prevents the electronics from strong heating or cooling by temperature
radiation.

Make sure that with heated or cooled vessels the permissible ambient
temperature on the housing is not exceeded. The permissible ambient
temperature is stated in chapter "Technical data" under "Ambient

conditions".

Fig. 6: Vessel with temperature insulation
1 Temperature insulation

2 Ambient temperature on the housing

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 15

5 Connecting to power supply

5 Connecting to power supply

5.1 Preparing the connection

Safety instructions

Voltage supply

Connection cable

Cable gland ½ NPT

Always keep in mind the following safety instructions:

l Connect only in the complete absence of line voltage
l If overvoltage surges are expected, overvoltage arresters should

be installed

Tip:

We recommend using VEGA overvoltage arresters B63-48 and
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.

Power supply and current signal are carried on the same two-wire
cable. The voltage supply range can differ depending on the
instrument version.

The data for power supply are specified in chapter "Technical data".

Provide a reliable separation between the supply circuit and the mains

circuits according to DIN VDE 0106 part 101. The VEGA power supply
units VEGATRENN 149A Ex, VEGASTAB 690 as well as all

VEGAMETs and VEGASCANs meet this requirement.

Keep in mind the following additional factors that influence the

operating voltage:

l Output 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")

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. A cable outer diameter of 5 … 9 mm
(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.

We generally recommend the use of screened cable for HART
multidrop mode.

On the instrument with cable entry ½ NPT and plastic housing there is
a metallic ½" threaded insert moulded into the plastic housing.

32311-EN-120329

16 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

5 Connecting to power supply

Caution:

No grease should be used when screwing the NPT cable gland or
steel tube into the threaded insert. Standard grease can contain
additives that corrode the connection between threaded insert and
housing. This would influence the stability of the connection and the
tightness of the housing.

Cable screening and
grounding

If screened cable is necessary, connect the cable screen on both ends
to ground potential. In the sensor, 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.

Warning:

Within galvanic plants as well as vessels with cathodic corrosion
protection there are considerable potential differences. Considerably
equalisation currents can be caused via the cable scrren when the
screen is earthed on both ends. To avoid this, the cable screen must
only connected to ground potential on one side of 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 the potential equalisation!

Information:

The metallic parts of the instrument (transmitter, process fitting, 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. 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.

5.2 Connection procedure

Proceed as follows:

1 Unscrew the housing cover

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 17

5 Connecting to power supply

2 If an indicating and adjustment module is installed, remove it by

turning it to the left.

3 Loosen compression nut of the cable entry
4 Remove approx. 10 cm (4 in) of the cable mantle, strip approx.

1 cm (0.4 in) of insulation from the ends of the individual wires
5 Insert the cable into the sensor through the cable entry
6 Lift the opening levers of the terminals with a screwdriver (see

following illustration)
7 Insert the wire ends into the open terminals according to the wiring

plan

Fig. 7: Connection steps 6 and 7

8 Press down the opening levers of the terminals, you will hear the

terminal spring closing
9 Check the hold of the wires in the terminals by lightly pulling on

them
10 Connect the screen to the internal ground terminal, connect the

outer ground terminal to potential equalisation
11 Tighten the compression nut of the cable entry. The seal ring must

completely encircle the cable

12 Screw the housing cover back on
The electrical connection is finished.

5.3 Wiring plan, single chamber housing

The following illustrations apply to the non-Ex as well as to the Ex-ia
version.

18 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

I²C

Display

1 2 5 6 7 8

3

4

1

2

I2C

Display

1

1 2 5

6 7 8

Electronics and connec­tion compartment

Wiring plan

5 Connecting to power supply

Fig. 8: Electronics and connection compartment, single chamber housing

1 Plug connector for VEGACONNECT (I²C interface)

2 Spring-loaded terminals for connection of the external indication VEGADIS

61
3 Ground terminal for connection of the cable screen
4 Spring-loaded terminals for voltage supply

Fig. 9: Wiring plan, single chamber housing
1 Voltage supply, signal output

5.4 Wiring plan, double chamber housing

The following illustration apply to non-Ex as well as Ex ia versions. The
Exd version is described in the next subchapter.

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 19

1

3

2

Display

1 2 5 6 7 8

I2C

1

2

3

Display

1 2

I2C

5 Connecting to power supply

Electronics compart­ment

Connection compart­ment

Fig. 10: Electronics compartment, double chamber housing
1 Plug connector for VEGACONNECT (I²C interface)

2 Internal connection cable to the connection compartment
3 Terminals for VEGADIS 61

Fig. 11: Connection compartment double chamber housing
1 Spring-loaded terminals for voltage supply

2 Plug connector for VEGACONNECT (I²C interface)
3 Ground terminal for connection of the cable screen

20 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

I2C

1

1 2

1

3

2

Display

1 2 5 6 7 8

I2C

Wiring plan

Electronics compart-

ment

5 Connecting to power supply

Fig. 12: Wiring plan, double chamber housing
1 Voltage supply, signal output

5.5 Wiring plan, Ex-d double chamber housing

Fig. 13: Electronics compartment, double chamber housing
1 Plug connector for VEGACONNECT (I²C interface)

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 21

2 Internal connection cable to the connection compartment
3 Terminals for VEGADIS 61

1

2

1 2

1

1 2

5 Connecting to power supply

Connection compart­ment

Wiring plan

Fig. 14: Connection compartment, Ex-d double chamber housing
1 Spring-loaded terminals for power supply and cable screen

2 Ground terminal for connection of the cable screen

Fig. 15: Wiring plan, Ex-d double chamber housing
1 Voltage supply, signal output

22 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

1

2

Wire assignment con­nection cable

5 Connecting to power supply

5.6 Wiring plan - version IP 66/IP 68, 1 bar

Fig. 16: Wire assignment connection cable
1 brown (+) and blue (-) to power supply or to the processing system

2 Shielding

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 23

6 Set up with the indicating and adjustment module PLICSCOM

6 Set up with the indicating and adjustment

module PLICSCOM

6.1 Short description

Function/Configuration

Mount/Dismount indica-

ting and adjustment mo­dule

The indicating and adjustment module is used for measured value
display, adjustment and diagnosis. It can be mounted in the following
housing versions and instruments:

®

l All sensors of the plics

in the double chamber housing (optionally in the electronics or
connection compartment)

l External indicating and adjustment unit VEGADIS 61

From a hardware version …- 01 or higher of the indicating and
adjustment module as well as of the corresponding sensor, an
integrated backlight can be switched on via the adjustment menu. The
hardware version is stated on the type label of the indicating and
adjustment module or the sensor electronics.

Note:

You can find detailed information on the adjustment in the operating
instructions manual "Indicating and adjustment module".

instrument family, in the single as well as

6.2 Insert indicating and adjustment module

The indicating and adjustment module can be inserted into the sensor
and removed again at any time. It is not necessary to interrupt the
power supply.

Proceed as follows:

1 Unscrew the housing cover
2 Place the indicating and adjustment module in the desired position

on the electronics (you can choose any one of four different
positions - each displaced by 90°)

3 Press the indicating and adjustment module onto the electronics

and turn it to the right until it snaps in.

4 Screw housing cover with inspection window tightly back on
Removal is carried out in reverse order.

The indicating and adjustment module is powered by the sensor, an

additional connection is not necessary.

24 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

6 Set up with the indicating and adjustment module PLICSCOM

Fig. 17: Insert indicating and adjustment module

Note:

If you intend to retrofit the instrument with an indicating and adjustment
module for continuous measured value indication, a higher cover with
an inspection glass is required.

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 25

2

3

1

1.1

6 Set up with the indicating and adjustment module PLICSCOM

6.3 Adjustment system

Fig. 18: Indicating and adjustment elements
1 LC display

2 Indication of the menu item number
3 Adjustment keys

Key functions

l [OK] key:

- Move to the menu overview

- Confirm selected menu

- Edit parameter

- Save value

l [->] key to select:

- Menu change

- Select list entry

- Select editing position

l [+] key:

- Change value of the parameter

l [ESC] key:

- interrupt input

- Return to higher-ranking menu

Adjustment system

The sensor is adjusted via the four keys of the indicating and
adjustment module. The LC display indicates the individual menu
items. The functions of the individual keys are shown in the above
illustration. Approx. 10 minutes after the last pressing of a key, an
automatic reset to measured value indication is triggered. Any values
not confirmed with [OK] will not be saved.

26 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

6 Set up with the indicating and adjustment module PLICSCOM

6.4 Setup steps

Switch-on phase

Address setting HART­Multidrop

Parameter adjustment

After connecting VEGAFLEX 67 to power supply or after a voltage
recurrence, the instrument carries out a self-check for approx. 30
seconds:

l Internal check of the electronics
l Indication of the instrument type, the firmware as well as the

sensor TAGs (sensor designation)

l Output signal jumps briefly (approx. 10 seconds) to the set fault

current
Then the corresponding current is outputted to the cable (the value

corresponds to the actual level as well as the settings already carried
out, e.g. factory setting).

In HART-Multidrop mode (several sensors on one input) the address
must be set before continuing with the parameter adjustment. You will
find a detailed description in the operating instructions manual
"Indicating and adjustment module" or in the online help of PACTware
or DTM.

HART mode

Standard

Address 0

As VEGAFLEX 67 is a distance measuring instrument, the distance
from the sensor to the product surface is measured. To have the real
product level displayed, an allocation of the measured distance to the
percentage height must be made. To carry out this adjustment, the
distance is entered with full and empty vessel. If these values are not
known, an adjustment with the distance values, e.g. 10 % and 90 % is
also possible. Starting point for these distance specifications is always
the seal surface of the thread or flange. With these settings, the real
level is calculated. Furthermore the operating range of the sensor is
limited from maximum to the required range.

The real product level during this adjustment is not important, because
the min./max. 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.

In the main menu item "Basic adjustment", the individual submenu
items should be selected one after the other and provided with the
correct parameter values.

Start your parameter adjustment with the following menu items of the
basic adjustment:

Carry out min. adjust-

Proceed as follows:

ment

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 27

6 Set up with the indicating and adjustment module PLICSCOM

1 Move from the measured value display to the main menu by

pushing [OK].

▶

Basic adjustment
Display
Diagnostics
Service
Info

2 Select the menu item "Basic adjustment" with [->] and confirm with

[OK]. Now the menu item "Dielectric value" is displayed.

Dielectric value

Upper medium

000

3 Enter the dielectric figure (DK value) of the upper medium and

confirm with [OK].
Save the settings with [OK] and move to "Min. adjustment" with [-

>].

Min. adjustment

0.00 %

=

10.000 m(d)

8.000 m(d)

4 Prepare the % value for editing with [OK] and set the cursor to the

requested position with [->]. Set the requested percentage value
with [+] and save with [OK]. The cursor jumps now to the distance
value.

5 Enter the suitable distance value in m for the empty vessel (e.g.

distance from the sensor to the vessel bottom) corresponding to
the percentage value.

6 Save the settings with [OK] and move to "Max. adjustment" with [-

>].

Carry out max. adjust-

Proceed as follows:

ment

Max. adjustment

100.00 %

=

1.000 m(d)

2.000 m(d)

1 Prepare the % value for editing with [OK] and set the cursor to the

requested position with [->]. Set the requested percentage value
with [+] and save with [OK]. The cursor jumps now to the distance
value.

2 Enter the appropriate distance value in m (corresponding to the

percentage value) for the full vessel. Keep in mind that the max.
level must lie below the dead band.

28 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

6 Set up with the indicating and adjustment module PLICSCOM

3 Save the settings with [OK].

Application

Damping

Each product has different reflective properties. In addition, there are
various interfering factors which have to be taken into account:
agitated product surfaces and foam generation (with liquids); dust
generation, material cones and echoes from the vessel wall (with
solids). To adapt the sensor to these different conditions, you should
first select in this menu item under "Medium" either "Liquid" or "Solid".

With coax versions, this menu item must be set to "Liquid".

Application

Liquid

Standard
(DK ≥ 2)

Measured products have different reflective properties that depend on
the dielectric figure (dielectric constant). For that reason there is an
additional selection option.

Under "Sensitivity" you can select "Standard (DK ≥ 2)" or "Increased
sensitivity (DK < 2)".

Through this the sensor is optimally adapted to the product and
measurement reliability, particularly in products with poor reflective
properties, is considerably increased.

Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.

To suppress fluctuations in the measured value display, e. g. caused
by an agitated product surface, a damping can be set. This time can
be between 0 and 999 seconds. Keep in mind that the reaction time of
the entire measurement will then be longer and the sensor will react to
measured value changes with a delay. In general, a period of a few
seconds is sufficient to smooth the measured value display.

Damping

0 s

Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.

Linearisation curve

A linearisation is necessary for all vessels in which the vessel volume
does not increase linearly with the level - e.g. in a horizontal cylindrical
or spherical tank - and the indication or output of the volume is
required. Corresponding linearisation curves are preprogrammed for
these vessels. They represent the correlation between the level

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 29

6 Set up with the indicating and adjustment module PLICSCOM

percentage and vessel volume. By activating the appropriate curve,
the volume percentage of the vessel is displayed correctly. If the
volume should not be displayed in percent but e.g. in l or kg, a scaling
can be also set in the menu item "Display".

Linearisation curve

Linear

Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.

Sensor-TAG

False signal suppres-

sion

In this menu item you can enter an unambiguous designation for the
sensor, e.g. the measurement loop name or the tank or product
designation. In digital systems and in the documentation of larger
plants, a singular designation should be entered for exact identification
of individual measuring points.

Sensor-TAG

Sensor

With this menu item, the Basic adjustment is finished and you can now
jump to the main menu with the [ESC] key.

High sockets or vessel installations, such as e.g. struts or agitators as
well as buildup and weld joints on the vessel walls cause interfering
reflections which can impair the measurement. A false echo storage
detects and marks these false echoes, so that they are no longer taken
into account for the level measurement. A false echo memory should
be created with empty vessel so that all potential interfering reflections
will be detected.

Probes in coax version require no gating out of false echoes since they
are not influenced by false reflections.

False signal suppression

Change now?

Proceed as follows:

1 Move from the measured value display to the main menu by

pushing [OK].

2 Select the menu item "Service" with [->] and confirm with [OK].

Now the menu item "False signal suppression" is d isplayed.

30 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

6 Set up with the indicating and adjustment module PLICSCOM

3 Confirm "False signal suppression - Change now" with [OK] and

select in the below menu "Create new". Enter the actual distance

from the sensor to the product surface. All false signals in this area

are detected by the sensor and saved after confirming with [OK].

Note:

Check the distance to the product surface, because if an incorrect (too
large) value is entered, the existing level will be saved as false signal.
The filling level would then no longer be detectable in this area.

Copy sensor data

This function enables reading out parameter adjustment data as well
as writing parameter adjustment data into the sensor via the indicating
and adjustment module. A description of the function is available in the
operating instructions manual "Indicating and adjustment module".

The following data are read out or written with this function:

l Measured value presentation
l Adjustment
l Medium
l Vessel form
l Damping
l Linearisation curve
l Sensor-TAG
l Displayed value
l Display unit
l Scaling
l Current output
l Unit of measurement
l Language
l Sensitivity
l Dielectric figure

The following safety-relevant data are not read out or written:

l HART mode
l PIN
l SIL
l Sensor length/Sensor type
l False signal suppression

Copy sensor data

Copy sensor data?

Reset

Basic adjustment

If the function "Reset" is carried out, the sensor resets the values of the
following menu items to the reset values (see chart):

1)

The following values will be reset:

1)

Sensor-specific basic adjustment.

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6 Set up with the indicating and adjustment module PLICSCOM

Function Reset value

Max. adjustment Distance, upper dead zone
Min. adjustment - Rod/Coax version Distance, supplied sensor length
Min. adjustment - Cable version Distance, lower dead zone
Damping ti 0 s
Linearisation Linear
Sensor-TAG Sensor
Display Distance
Current output - characteristics 4 … 20 mA
Current output - max. current 20 mA
Current output - min. current 4 mA
Current output - failure < 3.6 mA
Application - rod/coax version Liquid
Application - Cable version Bulk solid

The values of the following menu items are not reset to the reset

values (see chart) with "Reset":

Menu item Reset value

Lighting No reset
Language No reset
SIL No reset
HART mode No reset

Factory setting

Like basic adjustment, but in addition, special parameters are reset to
default values.

2)

Peak value

The min. and max. values are reset to the actual value.

Optional settings

Additional adjustment and diagnosis options such as e.g. scaling,
simulation or trend curve presentation are shown in the following menu
schematic. You will find a detailed description of these menu items in
the operating instructions manual "Indicating and adjustment module".

2)

Special parameters are parameters which are set customer-specifically on
the service level with the adjustment software PACTware.

32 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

Basic adjustment

▶

Basic adjustment
Display
Diagnostics
Service
Info

6 Set up with the indicating and adjustment module PLICSCOM

6.5 Menu schematic

1

Upper medium
Dielectric figure of the upper

medium
enter/calculate

Linearisation curve

Linear

Display

Basic adjustment

▶

Display
Diagnostics
Service
Info

Displayed value

Scaled

1.1

1.5

2.1

2

Min. adjustment

0.00 %

=

10.000 m(d)

8.000 m(d)

Sensor-TAG

Sensor

Unit

Volume

1.2

1.6

2.2

hl

Max. adjustment

100.00 %

=

1.000 m(d)

2.000 m(d)

Scaling

0 % = 000.5 hl

100 % = 005.0 hl

1.3

2.3

Damping

Lighting

1.4

0 s

2.4

Switched on

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 33

6 Set up with the indicating and adjustment module PLICSCOM

Diagnostics

Basic adjustment
Display

▶

Diagnostics
Service
Info

3

Peak value
Interface

Distance min.: 0.464 m(d)
Distance max.: 5.385 m(d)

Echo curve

Presentation of the echo

curve

Service

Basic adjustment
Display
Diagnostics

▶

Service
Info

Sensor

5.00 m(d)

▼

Rod

▼

Simulation

Start simulation?

3.1.1

3.4

4.1

4.5

4

Peak value
Total level

Distance min.: 0.234 m(d)
Distance max.: 5.385 m(d)

Application

Liquid

▼

Standard

▼

(DK ≥ 2)

Reset

Select reset?

3.1.2

4.2

4.6

Sensor status

OK

False signal suppression

Change now?

Unit of measurement

▼

m(d)

select?

3.2

4.3

4.7

Curve selection

Echo curve

Current output

Characteristic: 4-20 mA
Failure mode: 20.5 mA

min. current: 4 mA
max. current: 20.5 mA

Language

▼

Deutsch

3.3

4.4

▼

▼

▼

▼

4.8

HART mode

Standard

Address 0

4.10

Copy sensor data

Copy sensor data?

4.11

PIN

4.12

Enable?

34 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

Info

Basic adjustment
Display
Diagnostics
Service

▶

Info

6 Set up with the indicating and adjustment module PLICSCOM

5

Instrument type

Serial number

12345678

5.1

Calibration date

12. Dec. 2005

Software version

3.22

5.2

Last change using PC

04. March 2004

5.3

Sensor characteristics

Display now?

5.4

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VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 35

6 Set up with the indicating and adjustment module PLICSCOM

6.6 Saving the parameter adjustment data

We recommended noting the adjusted data, e.g. in this operating
instructions manual, and archiving them afterwards. They are thus
available for multiple use or service purposes.

If VEGAFLEX 67 is equipped with an indicating and adjustment
module, the most important data can be read out of the sensor into the
indicating and adjustment module. The procedure is described in the
operating instructions manual "Indicating and adjustment module" in
the menu item "Copy sensor data". The data remain there permanently
even if the sensor power supply fails.

If it is necessary to exchange the sensor, the indicating and adjustment
module is inserted into the replacement instrument and the data are
written into the sensor under the menu item "Copy sensor data".

36 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

3

1

2

1

2

3

4

OPEN

TWIST

USB

LOCK

VEGACONNECT directly
on the sensor

7 Set up with PACTware and other adjustment programs

7 Set up with PACTware and other adjustment

programs

7.1 Connect the PC

Fig. 19: Connection of the PC via VEGACONNECT directly to the sensor
1 USB cable to the PC

2 VEGACONNECT
3 Sensor

VEGACONNECT exter­nally

Fig. 20: Connection via VEGACONNECT externally
1 I²C bus (com.) interface on the sensor

2 I²C connection cable of VEGACONNECT
3 VEGACONNECT
4 USB cable to the PC

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 37

1

2 4

3

OPEN

TWIST

USB

LOCK

7 Set up with PACTware and other adjustment programs

Necessary components:

l VEGAFLEX 67
l PC with PACTware and suitable VEGA DTM
l VEGACONNECT
l Power supply unit or processing system

VEGACONNECT via
HART

Fig. 21: Connecting the PC via HART to the signal cable
1 VEGAFLEX 67

2 HART resistance 250 Ω (optional depending on processing)
3 Connection cable with 2 mm pins and terminals
4 Processing system/PLC/Voltage supply

Necessary components:

l VEGAFLEX 67
l PC with PACTware and suitable VEGA DTM
l VEGACONNECT
l HART resistance approx. 250 Ω
l Power supply unit or processing system

Note:

With power supply units with integrated HART resistance (internal
resistance approx. 250 Ω), an additional external resistance is not
necessary. This applies, e. g. to the VEGA instruments VEGATRENN
149A, VEGADIS 371, VEGAMET 381. Common Ex separators are
also usually equipped with a sufficient current limitation resistance. In
such cases, VEGACONNECT 4 can be connected parallel to the
4 … 20 mA cable.

7.2 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:

38 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

Keep in mind that for setup of VEGAFLEX 67, DTM-Collection in the

actual version must be used.

32311-EN-120329

7 Set up with PACTware and other adjustment programs

All currently available VEGA DTMs are included as a DTM Collection
on a CD. They can be purchased for a token fee from the responsible
VEGA agency. In addition, the actual PACTware version is also
available on this CD.

In addition, this DTM Collection incl. the basic version of PACTware
can be downloaded free of charge from the Internet. Move via
vega.com and "Downloads" to "Software".

www.

7.3 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. Move via

"Software".

www.vega.com and "Downloads" to

7.4 Saving the parameter adjustment data

It is recommended to document or save the parameter adjustment
data. That way they are 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.

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 39

8 Maintenance and fault rectification

8 Maintenance and fault rectification

8.1 Maintenance

If the instrument is used properly, no special maintenance is required
in normal operation.

8.2 Remove interferences

Failure reasons

Fault rectification

24 hour service hotline

Check the 4 … 20 mA
signal

VEGAFLEX 67 offers maximum reliability. Nevertheless, faults can
occur during operation. These may be caused by the following, e.g.:

l Sensor
l Process
l Voltage 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
and the faults rectified this way.

Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. [phone].

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 handmultimeter in the suitable measuring range according
to the wiring plan. The following table describes possible errors in the
current signal and helps to remove them:

Error Cause Rectification

4 … 20 mA signal
not stable

4 … 20 mA signal
missing

Level fluctuations Set damping via the indicating and

Electrical con-

nection faulty

Voltage supply
missing

Operating voltage
too low or load
resistance too
high

adjustment module

Check connection according to chap­ter "Connection steps" and if ne­cessary, correct according to chapter

"Wiring plan"

Check cables for breaks; repair if
necessary

Check, adapt if necessary

32311-EN-120329

40 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

8 Maintenance and fault rectification

Error Cause Rectification

Current signal
greaterthan22 mA
or less than

3.6 mA

Electronics mo-

dule in the sensor
defective

Exchange the instrument or send it in
for repair

In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.

Error messages via the
indicating and adjust­ment module

The indicating and adjustment modules indicates faults via error codes
and text messages. The following table describes the error codes with
status according to NE 107 and gives information on the causes of
failure and their removal:

Status accor­ding to NE 107

Failure E013 no measured value available Sensor in boot phase

Error code Text message Cause/Rectification

no measured value available Sensor does not find an echo, e.g.

no measured value available Wrong sensor length entered

E017 Adjustment span too small Adjustment not within the specifica-

E036 No operable software Failed or interrupted software up-

E042 Hardware error, electronics defec-

tive

E043 Hardware error, electronics defec-

tive

due to faulty installation or wrong
parameter adjustment

tion. Carry out the adjustment again,
increasing the distance between
min. and max. adjustment

date/Repeat software update

Exchange the instrument or send it
in for repair

Exchange the instrument or send it
in for repair

8.3 Exchanging the electronics module

If the electronics module is defective, it can be replaced by the user.

In Ex applications only one instrument and one electronics module with
respective Ex approval may be used.

If there is no electronics module available on site, one can be ordered
from the VEGA agency serving you.

Sensor serial number

The new electronics module must be loaded with the settings of the
sensor. These are the options:

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 41

8 Maintenance and fault rectification

l At the factory by VEGA
l Or on site by the user

In both cases, the sensor serial number is necessary. The serial
numbers are stated on the type label of the instrument, inside the
housing or on the delivery note.

Information:

When loading on site, first of all the order data must be downloaded
from the Internet (see operating instructions manual "Electronics

module").

Assignment

4 … 20 mA/HART

Load sensor software to
PC

The electronics modules are adapted to the respective sensor and
distinguish also in the signal output or power supply.

Electronics module FX-E.67H suitable for VEGAFLEX 67 - 4 … 20 mA/
HART:

l FX-E.67HX (X = without approvals)
l FX-E.67HC (C = approvals XM, CX, CM, CK, CI, DX, DM, DI

according to product list)

8.4 Software update

The software version of VEGAFLEX 67 can be determined as follows:

l on the type label of the electronics
l via the indicating and adjustment module
l via PACTware

You can view all software histories on our website
Make use of this advantage and get registered for update information

via e-mail.

The following components are required to update the sensor software:

l Sensor
l Voltage supply
l VEGACONNECT
l PC with PACTware
l Current sensor software as file

www.vega.com/downloads" go to "Software". Select under "plics

At "

sensors and instruments", "Firmware updates" the respective instru-
ment series and software version. Load the zip file via the right mouse
key with "Save target as" e.g. on the desktop of your PC. Move with the
right mouse key to the folder and select "Extract all". Save the
extracted files, for example on the desktop.

www.vega.com.

Prepare update

Connect the signal conditioning instrument to power supply and
provide the connection from the PC to the instrument via the interface
adapter. Start PACTware and go via the menu "Project" to the VEGA
project assistant. Select "USB" and "Set instruments online". Activate

42 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

8 Maintenance and fault rectification

the project assistant with "Start". The assistant establishes the
connection automatically and opens the parameter adjustment window
"Sensor # online parameter adjustment". Connect this parameter
adjustment window before you carry out further steps.

Load software into sen­sor

Select with the right mouse key the sensor in the project and go to

"Additional function". Then click to "Software update". The window
"Sensor # software update" opens. PACTware checks now the sensor

data and displays the actual hardware and software version of the
sensor. This takes approximately 60 s.

Push the button "Update software" and select the previously extracted
hex file. Then the software update can be started. The additional files
are installed automatically. Depending on the sensor, this procedure
lasts up to 1 h. Then the message appears ""Software update

successfully executed".

8.5 Instrument repair

If a repair is necessary, please proceed as follows:

You can download a return form (23 KB) from our homepage at

vega.com under: "Downloads - Forms and certificates - Repair form".

By doing this you help us carry out the repair qu ickly 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 worldwide"

www.

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 43

9 Dismounting

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. 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 on humans and the environ­ment and ensures recycling of useful raw materials.

Materials: see chapter "Technical data"

If you have no way to dispose of the old instrument properly, please

contact us concerning return and disposal.

44 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

10 Supplement

10 Supplement

10.1 Technical data

General data

Material 316L corresponds to 1.4404 or 1.4435
Materials, wetted parts - version -200 … +400°C (-328 … +752°F)

- Process fitting - coax version 316L and Aluminium oxide-ceramic 99.7 % (Al₂O₃),

- Process fitting - rod version 316L and Aluminium oxide-ceramic 99.7 % (Al₂O₃),

- Process fitting - cable version 316L and Aluminium oxide-ceramic 99.7 % (Al₂O₃)

- Tube: ø 43 mm (1.693 in) 316L or Hastelloy C22 (2.4602)

- Rod: ø 16 mm (0.63 in) 316L or Hastelloy C22 (2.4602)

- Cable: ø 6 mm (0.236 in) 316 (1.4401)

- Gravity weight (optionally available) 316L

- Process seal on the instrument side

(cable/rod leadthrough)

- Process seal On site

Materials, non-wetted parts

- Plastic housing plastic PBT (Polyester)

- Aluminium die-casting housing Aluminium die-casting AlSi10Mg, powder-coated -

- Stainless steel housing - precision cast-

ing

- Stainless steel housing, electropolished 316L

- Seal between housing and housing

cover

- Inspection window in housing cover
(optional)

- Ground terminal 316L

Process fittings

- Pipe thread, cylindrical (DIN 3852-A) G1½ A

- American pipe thread, conical

(ASME B1.20.1)

- Flanges DIN from DN 50, ANSI from 2"

Weights - version -200 … +400 °C (-328 … +752 °F)

- Instrument weight (depending on proc-
ess fitting)

- Tube: ø 43 mm (1.693 in) approx. 3600 g/m (38.7 oz/ft)

Hastelloy C22 (2.4602) and Aluminium oxide-
ceramic 99.7 % (Al₂O₃)

Hastelloy C22 (2.4602) and Aluminium oxide-
ceramic 99.7 % (Al₂O₃)

Graphite

basis: P olyester
316L

NBR (stainless steel housing, precision casting),

silicone (aluminium/plastic housing; stainless steel
housng, electropolished)

Polycarbonate

1½ NPT

approx. 0.8 … 8 kg (0.176 … 17.64 lbs)

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 45

10 Supplement

- Rod: ø 16 mm (0.63 in) approx. 1600 g/m (17 oz/ft)

- Cable: ø 6 mm (0.236 in) approx. 170 g/m (1.8 oz/ft)

- Gravity weight approx. 730 g (25.8 oz)

Probe length L (from seal surface)

- Tube: ø 43 mm (1.693 in) up to 6 m (19.69 ft)

- Trimming accuracy - tube < 1 mm (0.039 in)

- Rod: ø 16 mm (0.63 in) up to 6 m (19.69 ft)

- Trimming accuracy - rod < 1 mm (0.039 in)

- Cable: ø 6 mm (0.236 in) up to 60 m (196.9 ft)

- Trimming accuracy - cable ±0.05 %

Max. tensile load with cable: ø 6 mm

10 KN (2248 lbf)

(0.236 in)

Lateral load

- Tube: ø 43 mm (1.693 in) 100 Nm (74 lbf ft)

- Rod: ø 16 mm (0.63 in) 30 Nm (22 lbf ft)

Input variable

Measured variable Level of liquids
Min. dielectric figure (lower medium) by 10 higher than the ε

of the upper medium

r

Min. layer thickness (upper medium) > 100 mm (3.9 in)

The measured value deviates from the actual level

until the min. layer thickness is reached.

Max. layer thickness (upper medium)

- Dielectric figure (upper medium) 10 6 m (19.69 ft)

- Dielectric figure (upper medium) 5 10 m (32.81 in)

- Dielectric figure (upper medium) 2 20 m (65.61 in)

Min. dielectric figure (upper medium) - coax

ε

> 1.4

r

version

46 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

2

4

3

5

1

10 Supplement

Fig. 22: Measuring ranges of VEGAFLEX 67 - coax version
1 Reference plane

2 Probe length
3 Measuring range (default setting refers to the measuring range in water)
4 Upper dead band (see diagrams under Accuracy - grey section)
5 Lower dead band (see diagrams under Accuracy - grey section)

Min. dielectric figure (upper medium) with

ε

> 1.6

r

rod, cable version

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 47

2

4

3

5

1

2

4

5

3

1

10 Supplement

Fig. 23: Measuring ranges of the VEGAFLEX 67 - rod and cable version
1 Reference plane

2 Probe length
3 Measuring range
4 Upper dead band (see diagrams under Accuracy - grey section)
5 Lower dead band (see diagrams under Accuracy - grey section)

48 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

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0

1

2

3

4

5

6

7

8

9

10

1

2

Fig. 24: Relation dielectric figure (εr) of the upper medium to the max. probe length
1 Dielectric figure (ε

2 Max. probe length

) of the upper medium

r

Output variable

Output signal 4 … 20 mA/HART
Cycle time min. 1 s (dependent on the parameter setting)
Signal resolution 1.6 µA
Failure signal current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
Max. output current 22 mA
Load see load diagram under Power supply
Damping (63 % of the input variable) 0 … 999 s, adjustable
Fulfilled NAMUR recommendations NE 43
HART output values

- HART value (Primary Value) Distance to the interface (d1)

- HART value (Secondary Value) Height of the interface - scaled (h1)

- HART value (3rd Value) Distance to the level (d2)

- HART value (4th Value) Height of the level - scaled (h2)

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 49

10 Supplement

TS

d1

h1

h2

d2

1

L2

L1

10 Supplement

Fig. 25: Interface measurement (interface is between L1 and L2)
1 Reference plane

d1 Distance to the interface (Primary Value)
d2 Distance to the level (3rd Value)
TS Thickness of the upper medium (d1 - d2)
h1 Height - interface (Secondary Value)
h2 Height - level (4th Value)

L1 Lower medium
L2 Upper medium

Resolution, digital > 1 mm (0.039 in)

Accuracy (according to DIN EN 60770-1)

Process reference conditions according to DIN EN 61298-1

- Temperature +18 … +30 °C (+64 … +86 °F)

- Relative humidity 45 … 75 %

- Air pressure +860 … +1060 mbar/+86 … +106 kPa

(+12.5 … +15.4 psig)

- Emulsion phase < 2 mm (< 0.079 in)

Installation reference conditions

- Min. distance to installations > 500 mm (19.69 in)

- Vessel metallic, ø 1 m (3.281 ft), centric installation,

- Medium Water/Oil (dielectric figure ~2.0)

- Installation Probe end does not touch the vessel bottom

process fitting flush with the vessel ceiling

Sensor parameter adjustment Gating out of false signals carried out
Deviation see diagrams

The accuracy values of the diagrams refer to the

50 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

L

0

-25 mm (-0.984")

-10 mm (-0.394")

10 mm (0.394")

25 mm (0.984")

0,2 m

(7.874")

0,15 m

(5.906")

0,15 m
(5.91")

0,05 m

(1.968")

1 1

Fig. 26: Deviation VEGAFLEX 67 in rod version

L

0

-15 mm (-0.591")

-10 mm (-0.394")

10 mm (0.394")

25 mm (0.984")

0,2 m

(7.874")

0,15 m

(5.906")

0,2 m

(7.874")

0,1 m

(3.937")

1 1

1 Dead zone - no measurement possible in this area
L Probe length

10 Supplement

interface.
Depending on the installation conditions, there can
be deviations which can be rectified with an
adaptation of the adjustment or a change of the
measured value offset in the DTM service mode.

32311-EN-120329

Fig. 27: Deviation VEGAFLEX 67 in cable version
1 Dead zone - no measurement possible in this area

L Probe length

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 51

L

0

-10 mm (-0.394")

10 mm (0.394")

0,1 m (3.937")

0,15 m

(1.968")

1 1

10 Supplement

Fig. 28: Deviation VEGAFLEX 67 in coax version
1 Dead zone - no measurement possible in this area

L Probe length

Influence of the ambient temperature to the sensor electronics

Temperature drift 0.03 %/10 K relating to the max. measuring range

or max. 0.3 %

Temperature drift - Digital output 3 mm/10 K relating to the max. measuring range or

max. 10 mm

Ambient conditions

Ambient, storage and transport temperature -40 … +80 °C (-40 … +176 °F)

Process conditions

Process pressure -1 … +400 bar/-100 … +40000 kPa (-

-14.5 … +5800 psig), depending on the process

fitting

52 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

2

1

-100°C

(-148°F)

-200°C

(-328°F)

100 bar

(1450 psig)

200 bar

(2900 psig)

300 bar

(4350 psig)

400 bar

(5800 psig)

380 bar

(5510 psig)

350 bar

(5070 psig)

0°C

(32°F)

200°C

(392°F)

100°C

(212°F)

400°C

(752°F)

300°C

(572°F)

Fig. 29: High temperature version: Process pressure - process temperature

1

2

-110°C

(-166°F)

-200°C

(-328°F)

-20°C
(-4°F)

0°C

(32°F)

-40°C

(-40°F)

60°C

(140°F)

80°C

(176°F)

100°C

(212°F)

200°C

(392°F)

100°C

(212°F)

400°C

(752°F)

300°C

(572°F)

1 Process temperature
2 Process pressure

10 Supplement

Process temperature (thread or flange tem-

-200 … +400 °C (-328 … +752 °F)

perature)

The measurement error from the process condi­tions is in the specified pressure and temperature
range of below 1 %.

Fig. 30: Ambient temperature - process temperature (version -200 … +400 °C/-328 … +752 °F)
1 Ambient temperature

2 Process temperature (graphite seal)

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 53

10 Supplement

Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar

Cable entry/plug

3)

- Single chamber housing l 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm),
1 x blind stopper M20 x 1.5

or:

l 1 x closing cap M20 x 1.5; 1 x blind stopper

M20 x 1.5

or:

l 1 x closing cap ½ NPT, 1 x blind plug ½ NPT

or:

l 1 x plug (depending on the version), 1 x blind

stopper M20 x 1.5

- Double chamber housing l 1 x cable entry M20 x 1.5 (cable: ø 5 … 9 mm),
1 x blind stopper M20 x 1.5; 1 x blind stopper

M16 x 1.5 or optionally available with 1 x plug
M12 x 1 for external indicating and adjustment

unit

or:

l 1 x closing cap ½ NPT, 1 x blind stopper

½ NPT , 1 x blind stopper M16 x 1.5 or

optionally 1 x plug M12 x 1 for external
indicating and adjustment unit

or:

l 1 x plug (depending on the version), 1 x blind

stopper M20 x 1.5; 1 x blind stopper M16 x 1.5
or optionally available with 1 x plug M12 x 1 for
external indicating and adjustment unit

Spring-loaded terminals for wire cross-sec-

< 2.5 mm² (AWG 14)

tion

Electromechanical data - version IP 66/IP 68 (1 bar)

Cable entry

- Single chamber housing 1 x IP 68 cable gland M20 x 1.5; 1 x blind stopper

M20 x 1.5

- Double chamber housing 1 x IP 68 cable gland M20 x 1.5; 1 x blind stopper

M20 x 1.5; 1 x blind stopper M16 x 1.5

Connection cable

- Wire cross-section 0.5 mm² (AWG 20)

- Wire resistance < 0.036 Ω/m

- Tensile strength < 1200 N (270 lbf)

- Standard length 5 m (16.4 ft)

- Max. length 1000 m (3280 ft)

3)

Depending on the version M12 x 1, according to DIN 43650, Harting, 7/
8" FF.

54 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

- Min. bending radius 25 mm (0.984 in) with 25 °C (77 °F)

- Diameter approx. 8 mm (0.315 in)

- Colour - standard PE Black

- Colour - standard PUR Blue

- Colour - Ex-version Blue

Indicating and adjustment module

Voltage supply and data transmission through the sensor
Indication LC display in dot matrix
Adjustment elements 4 keys
Protection rating

- unassembled IP 20

- mounted into the sensor without cover IP 40

Materials

- Housing ABS

- Inspection window Polyester foil

Voltage supply

Operating voltage

- Non-Ex instrument 14 … 36 V DC

- EEx-ia instrument 14 … 30 V DC

- EEx-d-ia instrument 20 … 36 V DC

Operating voltage with illuminated indicating and adjustment module

- Non-Ex instrument 20 … 36 V DC

- EEx-ia instrument 20 … 30 V DC

- EEx-d-ia instrument 20 … 36 V DC

Permissible residual ripple

- < 100 Hz U

- 100 Hz … 10 kHz U

< 1 V

ss

< 10 mV

ss

Load see diagram

10 Supplement

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 55

1000

750

500

250

14

1816 20 22 24 26 28 30 32 34 36

Ω

V

4

1

2

3

10 Supplement

Fig. 31: Voltage diagram
1 HART load

2 Voltage limit EEx-ia instrument
3 Voltage limit non-Ex/Ex-d instrument
4 Operating voltage

Electrical protective measures

Protection, depending on housing version

- Plastic housing IP 66/IP 67

- Aluminium housing, stainless steel

IP 66/IP 68 (0.2 bar)
housing - investment casting, stainless
steel housing - electro-polished

- Aluminium and stainless housing, in-

IP 66/IP 68 (1 bar)

vestment casting (optionally available)

Overvoltage category III
Protection class II

4)

Approvals

Instruments with approvals can have different technical data depending on the version.
That's why the associated approval documents have to be noted with these instruments. They are

part of the delivery or can be downloaded under

www.vega.com via "VEGA Tools" and "serial

number search" as well as via "Downloads" and "Approvals".

4)

A suitable cable is the prerequisite for maintaining the protection rating.

56 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

10.2 Dimensions

~ 69 mm

(2.72")

ø 79 mm

(3.03")

112 mm (4.41")
M20x1,5/
½ NPT

~ 84 mm (3.31")

M16x1,5

112 mm (4.41")

M20x1,5/
½ NPT

1

2

ø 79 mm

(3.31")

21

ø 86 mm (3.39")

~ 116 mm (4.57")

116 mm (4.57")

M20x1,5

M20x1,5/
½ NPT

~ 87 mm (3.43")

M16x1,5

ø 86 mm

(3.39")

120 mm (4.72")

M20x1,5/
½ NPT

Plastic housing

1 Single chamber version
2 Double chamber version

Aluminium housing

10 Supplement

The following dimensional drawings represent only an extract of the

possible versions. Detailed dimensional drawings can be downloaded

www.vega.com under "Downloads" and "Drawings".

on

1 Single chamber version
2 Double chamber version

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 57

120 mm (4.72")

~ 105 mm (4.13")

116 mm (4.57")

~ 150 mm (5.91")

ø 84 mm (3.31")

ø 84 mm

(3.31")

M20x1,5/
½ NPT

M16x1,5

2

M20x1,5M20x1,5

1

~ 69 mm

(2.72")

ø 79 mm

(3.11")

117 mm (4.61")

M20x1,5/
½ NPT

~ 59 mm

(2.32")

ø 80 mm

(3.15")

112 mm (4.41")

M20x1,5/
½ NPT

~ 87 mm (3.43")

ø 86 mm

(3.39")

120 mm (4.72")

M20x1,5/
½ NPT

M16x1,5

321

10 Supplement

Aluminium housing in protection rating IP 66/IP 68, 1 bar

1 Single chamber version
2 Double chamber version

Stainless steel housing

1 Single chamber version, electropolished
2 Single chamber version, precision casting
2 Double chamber version, precision casting

58 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

VEGAFLEX 67, rod, cable version (-200 … +400 °C/-328 … +752 °F)

SW60

G1½ /
1½ NPT

ø 16mm

(

5

/8")

ø 30mm
(1

3

/16")

ø 6mm
(

15

/64")

L

292mm (11

1

/

2

")

35mm

(1

3

/

8

")

185mm (7

9

/

32

")

150mm (5

29

/

32

")

10 Supplement

Fig. 36: VEGAFLEX 67, cable, rod version with thread (-200 … +400 °C/-328 … +752 °F)

L Sensor length, see chapter "Technical data"

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 59

G1½ /
1½ NPT

ø 42,4 mm

(1.67")

L

292 mm (11.45")

57 mm

(2.24")

35 mm

(1.38")

SW 60 mm

(2.36")

10 Supplement

VEGAFLEX 67, coax version (-200 … +400 °C/-328 … +752 °F)

Fig. 37: VEGAFLEX 67, coax version with thread (-200 … +400 °C/-328 … +752 °F)

L Sensor length, see chapter "Technical data"

60 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

10 Supplement

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 the brands as well as trade and company names used are property
of their lawful proprietor/originator.

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 61

10 Supplement

62 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire

32311-EN-120329

10 Supplement

32311-EN-120329

VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 63

VEGA Grieshaber KG

ISO 9001

Am Hohenstein 113
77761 Schiltach

Germany
Phone [phone]
Fax [phone]
E-mail: [e-mail]

www.vega.com

Printing date:

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 2012

Subject to change without prior notice 32311-EN-120329