Operating Instructions - VEGAPULS SR 68 - 4 ? 20 mA/HART two-wire

Operating Instructions - VEGAPULS SR 68 - 4 ? 20 mA/HART two-wire
Operating Instructions
VEGAPULS SR 68
4 … 20 mA/HART two-wire
Document ID:
38294
Radar
Contents
Contents
1
About this document
1.1
1.2
1.3
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7
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General instructions . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting preparations - Horn antenna . . . . . . . . . . . .
Mounting instructions . . . . . . . . . . . . . . . . . . . . . . . .
11
11
12
Structure . . . . . . . . . . . . . . . . . . . .
Principle of operation . . . . . . . . . . .
Packaging, transport and storage . .
Accessories and replacement parts .
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32
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Connecting the PC . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter adjustment with PACTware . . . . . . . . . . . .
Saving the parameter adjustment data . . . . . . . . . . . .
47
48
49
Preparing the connection . . . . . . . . . . . . . . . .
Connection. . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring plan, single chamber housing . . . . . . . .
Wiring plan, double chamber housing . . . . . . .
Wiring plan with double chamber housing Ex d
Wiring plan - version IP 66/IP 68, 1 bar . . . . . .
Switch on phase. . . . . . . . . . . . . . . . . . . . . . .
Insert indicating and adjustment module.
Adjustment system . . . . . . . . . . . . . . . .
Parameter adjustment. . . . . . . . . . . . . .
Saving the parameter adjustment data . .
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Setup with PACTware
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
7.1
7.2
7.3
2
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Set up with the indicating and adjustment module
6.1
6.2
6.3
6.4
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Connecting to power supply
5.1
5.2
5.3
5.4
5.5
5.6
5.7
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Mounting
4.1
4.2
4.3
5
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Authorised personnel . . . . . . . . . . . . . .
Appropriate use . . . . . . . . . . . . . . . . . .
Warning about misuse . . . . . . . . . . . . .
General safety instructions . . . . . . . . . .
CE conformity . . . . . . . . . . . . . . . . . . .
Fulfillment of NAMUR recommendations
Radio approval for Europe . . . . . . . . . .
Radio approval for USA/Canada . . . . . .
Environmental instructions. . . . . . . . . . .
Product description
3.1
3.2
3.3
3.4
4
4
4
4
For your safety
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbolism used. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents
8
Set up with other systems
8.1
8.2
9
DD adjustment programs . . . . . . . . . . . . . . . . . . . . .
Communicator 375, 475 . . . . . . . . . . . . . . . . . . . . . .
50
50
Diagnosis, fault rectification and service
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51
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58
10.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
59
9.1
9.2
9.3
9.4
9.5
9.6
9.7
Maintenance . . . . . . . . . . . . . . . . . .
Measured value and event memory . .
Error messages according to NE 107
Fault rectification . . . . . . . . . . . . . . .
Exchanging the electronics module . .
Software update . . . . . . . . . . . . . . . .
How to proceed in case of repair. . . .
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10 Dismounting
11 Supplement
11.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
68
38294-EN-110209
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.
VEGAPULS SR 68 • 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 keep 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 applications
This symbol indicates special instructions for Ex applications.
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1
List
The dot set in front indicates a list with no implied sequence.
Action
This arrow indicates a single action.
Sequence
Numbers set in front indicate successive steps in a procedure.
38294-EN-110209
4
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
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
VEGAPULS SR 68 is a sensor for continuous level measurement.
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.
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 state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technically flawless and reliable condition. The operator is responsible
for the 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.
The safety instructions in this operating instructions manual, the
national installation standards as well as the valid safety regulations
and accident prevention rules must be observed by the user.
38294-EN-110209
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.
The safety approval markings and safety tips on the device must also
be observed.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
5
2 For your safety
Depending on the instrument version, the emitting frequencies are in
the C or K band range. The low emitting frequencies are far below the
internationally approved limit values. When used correctly, there is no
danger to health.
2.5 CE conformity
The 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 Radio approval for Europe
The instrument is approved according to EN 302372-1/2 (2006-04) for
use in closed vessels.
2.8 Radio approval for USA/Canada
The instrument is in conformity with part 15 of the FCC regulations.
Take note of the following two regulations:
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The device must not generate interference emissions, and
The device must be insensitive to interfering immissions, including
those that may cause undesirable operating conditions.
Modifications not expressly approved by the manufacturer will lead to
expiry of the operating licence according to FCC/IC.
The instrument is in conformity with RSS-210 of the IC regulations.
The instrument may only be operated in closed vessels made of metal,
concrete, or fibre-reinforced plastic.
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.
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Chapter "Packaging, transport and storage"
Chapter "Disposal"
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Please help us fulfil this obligation by observing the environmental
instructions in this manual:
3 Product description
3 Product description
3.1 Structure
Type label
The type label contains the most important data for identification and
use of the instrument:
1
2
3
4
5
6
7
8
9
12
11
10
Fig. 1: Structure of the type label (example)
1
2
3
4
5
6
7
8
9
10
11
12
Serial number
The serial number on the type label of the instrument allows you to call
up the order data, operating instructions manuals, sensor data for the
service DTM as well as the test certificate (depending on the
instrument). To do this, open under www.vega.com, "VEGA Tools" and
"serial number search".
Scope of the operating
instructions manual
This operating instructions manual applies to the following instrument
versions:
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38294-EN-110209
Instrument type
Product code
Approvals
Electronics
Protection rating
Measuring range
Process and ambient temperature, process pressure
Material, wetted parts
Hardware and software version
Order number
Serial number of the instrument
ID numbers, instrument documentation
Scope of delivery
Hardware from 2.1.1
Software from 4.4.0
Modification status electronics from -25
The scope of delivery encompasses:
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Radar sensor
Documentation
- this operating instructions manual
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
7
3 Product description
-
Safety Manual (SIL) (optional)
Test certificate measuring accuracy (optional)
Operating instructions manual "Indicating and adjustment
module" (optional)
Supplementary instructions "GSM/GPRS radio module" (optional)
Supplementary instructions manual "Heating for indicating and
adjustment module" (optional)
Supplementary instructions manual "Plug connector for continuously measuring sensors" (optional)
Ex-specific "Safety instructions" (with Ex versions)
if necessary, further certificates
3.2 Principle of operation
Application area
The instrument is designed for level measurement of bulk solids even
under difficult process conditions. Its mechanical construction and
electronics are specially optimised for such applications. Many
application possibilities can be found in the food processing industry,
in plastics processing and steel production as well as in the building
industry.
The instrument is particularly suitable for average-size silos and
vessels.
The instrument is also suitable for applications in liquids.
The use of the instrument is possible with products with an εr value
≥1.5. The reachable value depends on the measurement conditions,
the antenna system, the standpipe or bypass.
Functional principle
The antenna of the radar sensor emits short radar pulses with a
duration of approx. 1 ns. These pulses are reflected by the product
and received by the antenna as echoes. The running time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an
appropriate output signal and outputted as measured value.
3.3 Packaging, transport and storage
Packaging
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.
Transport
8
Transport must be carried out under consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
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.
3 Product description
Transport inspection
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.
Storage
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:
Storage and transport
temperature
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Not in the open
Dry and dust free
Not exposed to corrosive media
Protected against solar radiation
Avoiding mechanical shock and vibration
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Storage and transport temperature see chapter "Supplement Technical data - Ambient conditions"
Relative humidity 20 … 85 %
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3.4 Accessories and replacement parts
Indicating and adjustment module
The indicating and adjustment module PLICSCOM is used for
measured value indication, adjustment and diagnosis. It can be
inserted into the sensor and removed at any time.
You can find further information in the operating instructions "Indicating
and adjustment module PLICSCOM" (Document-ID 27835).
Interface adapter
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
parameter adjustment of these instruments, an adjustment software
such as PACTware with VEGA-DTM is required.
You can find further information in the operating instructions "Interface
adapter VEGACONNECT" (Document-ID 32628).
External indicating and
adjustment unit
VEGADIS 61 is an external indicating and adjustment unit for sensors
with single chamber housing and double chamber housing Ex d.
It is suitable for measured value indication and adjustment of plics®
sensors and is connected to the sensor with a four-wire, screened
standard cable up to 50 m long.
38294-EN-110209
You can find further information in the operating instructions
"VEGADIS 61" (Document-ID 27720).
External indicating and
adjustment unit with
HART protocol
VEGADIS 62 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
9
3 Product description
You can find further information in the operating instructions
"VEGADIS 62" (Document-ID 36469).
External radio unit
The PLICSMOBILE T61 is an external GSM/GPRS radio unit for
transmission of measured values and for remote parameter adjustment of plics® sensors. The adjustment is carried out via PACTware/
DTM by using the integrated USB connection.
You can find further information in the supplementary instructions
"PLICSMOBILE T61" (Document-ID 36849).
Protective cover
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
You will find additional information in the supplementary instructions
manual "Protective cover" (Document-ID 34296).
Flanges
Flanges are available in different versions according to the following
standards: DIN 2501, EN 1092-1, ANSI B 16.5, JIS B 2210-1984,
GOST 12821-80.
You will find additional information in the supplementary instructions
manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID
31088).
Electronics module
The electronics module VEGAPULS series 60 is a replacement part
for radar sensors of VEGAPULS series 60. A separate version is
available for each type of signal output.
You can find further information in the operating instructions
"Electronics module VEGAPULS series 60 " (Document-ID 36801).
Antenna impedance cone
The antenna impedance cone is used for optimum transmission of
microwaves and for sealing against the process.
You find further information in the operating instructions "Antenna
impedance cone VEGAPULS 62 and 68" (Document-ID 31381).
38294-EN-110209
10
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
4 Mounting
4 Mounting
4.1 General instructions
Screwing in
With instruments with threaded process fitting, suitable tools must be
applied for tightening the hexagon.
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Moisture
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.
Suitability for the process conditions
Make sure that all parts of the instrument exposed to the process, in
particular the active measuring component, 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" or on the
type label.
4.2 Mounting preparations - Horn antenna
The instrument is also available in versions with an antenna whose
diameter is larger than the process fitting (thread, flange). In such
cases the antenna must be disconnected from the process fitting
before mounting. Proceed as follows:
1
Loosen the hexagon screws (3) on the antenna socket with an
Allen wrench (size 3)
2
Remove the antenna (4)
38294-EN-110209
Note:
The plastic conemust not be pulled out of the antenna socket.
3
Insert the antenna from below into the vessel socket and secure it
against falling off
4
Retighten the antenna with hexagon screws to the antenna socket;
torque max. 10 Nm (7.5 lbf ft)
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
11
4 Mounting
Note:
The radar sensor with rinsing air connection or antenna extension is
provided with a notch on the antenna socket. This notch must
correspond to the marking on the hexagon of the process fitting (the
marking specifies the position of the polarisation level of the radar
signal).
1
2
3
4
Fig. 2: Dismounting of the horn antenna
1
2
3
4
Marking of the polarisation plane
Notch at the antenna socket
Hexagon screws on the antenna socket
Antenna
4.3 Mounting instructions
Polarisation plane
The emitted radar impulses of the radar sensor are electromagnetic
waves. The polarisation plane is the direction of the electrical wave
component. By turning the instrument in the connection flange or
mounting boss, the polarisation can be used to reduce the effects of
false echoes.
38294-EN-110209
12
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
4 Mounting
The position of the polarisation plane is marked on the process fitting
of the instrument.
11
Fig. 3: Position of the polarisation level
1
Mounting position
Marking hole
Mount the sensor at least 200 mm (7.874 in) away from the vessel
wall.
1
> 200 mm
(7.87")
Fig. 4: Mounting of the radar sensor on round vessel tops
If you cannot keep this distance you should carry out a false echo
storage before setup. This applies mainly if buildup on the vessel wall
is expected. In this case, we recommend repeating a false echo
storage later with existing buildup.
Mounting should not be too close to the inflowing material as the
microwave signal will be interferred. The optimum mounting position is
on the opposite of the filling. To avoid strong pollution, the distance to
the filter or dust extraction must be as big as possible.
38294-EN-110209
Inflowing medium
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
13
4 Mounting
Fig. 5: Mounting of the radar sensor with inflowing medium
The socket piece should be dimensioned in such a way that the
antenna end protrudes slightly out of the socket.
ca. 10 mm
Socket
14
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Fig. 6: Recommended socket mounting with horn antenna
4 Mounting
When using a swivelling holder, keep in mind that the distance
between antenna and socket gets smaller as the inclination of the
sensor increases. Additional false reflections may be generated which
can influence the measuring result at close range.
Fig. 7: Distance between antenna and socket with horn antenna
h max.
If the medium has good reflective properties, VEGAPULS SR 68 with
horn antenna can also be mounted on a longer socket piece.
Recommended values for socket heights are specified in the following
illustration. You must carry out a false echo storage afterwards.
d
38294-EN-110209
Fig. 8: Deviating socket dimensions
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
15
4 Mounting
Socket diameter d
Socket length h
40 mm
100 mm
50 mm
150 mm
80 mm
250 mm
100 mm
500 mm
150 mm
800 mm
Socket diameter d
1½"
Socket length h
3.9 in
2"
5.9 in
3"
9.8 in
4"
19.7 in
6"
31.5 in
Tip:
The instrument is also optionally available with an antenna extension.
The antenna length can be selected (either ex works or later) to allow
the antenna to protrude slightly out of the end of the mounting socket.
Due to the antenna extension however, disturbing reflections are
generated in the close-up range. This can lead to an increase in the
required minimum distance, especially with poorly reflecting media
such as plastic powder. In practice, a cleanly constructed mounting
socket, if necessary with rounded edges, introduces fewer disturbing
influences than an antenna extension.
Orientation
To measure as much of the vessel volume as possible, the sensor
should be aligned so that the measuring beam reaches the lowest
level in the vessel. In a cylindrical silo with conical outlet, the easiest
way is to mount the instrument in the center of the silo.
38294-EN-110209
16
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
4 Mounting
Fig. 9: Orientation
38294-EN-110209
If mounting in the center of the silo is not possible, the sensor can be
directed to the vessel center by means of an optional swivelling holder.
The following description gives an overview on the determination of
the necessary angle of inclination.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
17
4 Mounting
d
α
a
Fig. 10: Proposal for installation after orientation VEGAPULS SR 68
The angle of inclination depends on the vessel dimensions. It can be
easily checked with a suitable level or water leve on the sensor.
The following chart specifies the distance "a" between installation
position and vessel centre dependent on the measuring distance for
inclination angles of 2° … 10°.
Distance d 2°
(m)
4°
6°
8°
10°
2
0.1
0.2
0.3
0.4
0.1
4
0.1
0.3
0.4
0.6
0.7
6
0.2
0.4
0.6
0.8
1.1
8
0.3
0.6
0.8
1.1
1.4
10
0.3
0.7
1.1
1.4
1.8
15
0.5
1.0
1.6
2.1
2.6
20
0.7
1.4
2.1
2.8
3.5
25
0.9
1.7
2.6
3.5
4.4
30
1.0
2.1
3.2
4.2
5.3
38294-EN-110209
Example:
18
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
4 Mounting
In a vessel 20 m high, the installation position of the sensor is 1.4 m
from the vessel centre.
The necessary angle of inclination of 4° can be read out from this
chart.
Proceed as follows to adjust the angle of inclination with the swivelling
holder:
1
Loosen terminal screw of the swivelling holder with a fork spanner
SW 13
2
Direct the sensor, check angle of inclination
Information:
The max. angle of inclination of the swivelling holder is approx. 15°
3
Tighten the terminal screw, torque max. 20 Nm.
Information:
The hexagon screws must not be loosened.
Vessel installations
The mounting location of the radar sensor should be a place where no
other equipment or fixtures cross the path of the microwave signals.
Vessel installations, such as e.g. ladders, limit switches, heating
spirals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring site that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false echo storage should be
carried out during setup.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small, inclined sheet metal baffles above the installations scatter the
radar signals and prevent direct interfering reflections.
38294-EN-110209
Fig. 11: Cover smooth profiles with deflectors
Agitators
If there are agitators in the vessel, a false signal suppression should be
carried out with the agitators in motion. This ensures that the interfering
reflections from the agitators are saved with the blades in different
positions.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
19
4 Mounting
Fig. 12: Agitators
Material heaps
Large material heaps are detected with several sensors, which can be
mounted on e.g. traverse cranes. For this type of application, it is best
to orient the sensor toward the solid surface. A mutual infuence of the
sensors is not possible.
Fig. 13: Radar sensors on traverse crane
20
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Information:
Keep in mind that for these applications, the sensors are designed for
relatively slow level changes. When using VEGAPULS SR 68 on a
movable bracket, the max. measuring rate must be observed (see
chapter "Technical data").
4 Mounting
Mounting in the vessel
insulation
Instruments for a temperature range up to 250 °C or up to 450 °C have
a distance piece between process fitting and electronics housing. Ths
distance piece is used for thermal decoupling of the electronics
against high process temperatures.
Information:
The distance piece must only be incorporaed up to max. 50 mm in the
vessel installation. Only then, a reliable temperature decoupling is
guaranteed.
max. 50 mm
(1.97")
1
2
3
Fig. 14: Mounting of the instrument with insulated vessels.
1
2
3
Installation in subsurface enclosures
Electronics housing
Distance piece
Vessel insulation
For level measurements in concrete silos, the sensors are often
mounted in protective boxes. These boxes can be for example
metallic, closed subsurface enclosures.
38294-EN-110209
Minimal amounts of stray radiation from the sensor can be reflected
and strengthened by the walls of the subsurface enclosures. In the
case of sensors with plastic housings, this can lead to coupling
disturbances. This is avoided by using a sensor with aluminium or
stainless steel housing.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
21
4 Mounting
1
2
Fig. 15: Mounting of the instrument in an subsurface enclosure
1
2
Mounting in multiple
chamber silo
Subsurface enclosure
Concrete bottom
The silo walls of multiple chamber silos are often made of profile walls,
such as e.g. profile sheeting, to ensure the required stability. If the
radar sensor is mounted very close to a heavily structured vessel wall,
considerable false reflections can be generated. Hence the sensor
should be mounted at a large distance from the separating wall. The
optimal mounting position is on the outer wall of the silo with the sensor
directed towards the emptying aperture in the silo center.
Fig. 16: Mounting of VEGAPULS SR 68 in multiple chamber silos
38294-EN-110209
22
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
4 Mounting
Fig. 17: Orientation of VEGAPULS SR 68 for emptying in the silo center
Dust layers
To avoid strong buildup and dust in the antenna system, the sensor
should not be mounted directly at the dust extraction of the vessel.
In case of extreme dust deposits in the antenna system, VEGAPULS
SR 68 is available with a rinsing air connection. The air is distributed
via channels in the antenna system and keeps it largely free of dust.
38294-EN-110209
Fig. 18: Purging air connection with horn antenna
The practice has shown that a pressure of approx. 0.2 … 1 bar
provides a sufficient air flow (see diagram in chapter "Technical data",
"Purging air connection".
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
23
5 Connecting to power supply
5 Connecting to power supply
5.1 Preparing the connection
Safety instructions
Always keep in mind the following safety instructions:
l
l
Voltage supply
Connect only in the complete absence of line voltage
If overvoltages are expected, install overvoltage arresters
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.
Keep the following additional influences for the operating voltage in
mind:
l
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)
Influence of additional instruments in the circuit (see load values in
chapter "Technical data")
Connection to signal
conditioning instruments
The signal conditioning instruments VEGAMET and VEGASCAN have
digital sensor recognition. When connecting VEGAPULS SR 68, an
up-to-date software version of the signal conditioning instrument is
required for the signal conditioning instrument. For a software update
go to "Software" under "www.vega.com/downloads".
Connection cable
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.
For instruments with housing and cable gland, 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.
With plastic housing, the NPT cable gland or the Conduit steel tube
must be screwed without grease into the threaded insert.
Max. torque for all housings see chapter "Technical data"
24
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Cable gland ½ NPT
5 Connecting to power supply
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. Considerable
equalisation currents can be caused via the cable screen when the
screen is earthed on both ends.
To avoid this, the cable screen must only be 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 metal parts of the instrument (antenna, transmitter, concentric
tube, etc.) are conductive connected with the inner and outer ground
terminal on the housing. This connection exists either directly metallic
or with instruments with external electronics via the screen of the
special connection cable.
You can find specifications to the potential connections within the
instrument in chapter "Technical data".
5.2 Connection
Connection technology
The connection of the voltage supply and the signal output is carried
out via the spring-loaded terminals in the housing.
The connection to the indicating and adjustment module or to the
interface adapter is carried out via contact pins in the housing.
38294-EN-110209
Connection procedure
Proceed as follows:
1
Unscrew the housing cover
2
If an indicating and adjustment module is installed, remove it by
turning it slightly 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
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
25
5 Connecting to power supply
5
Insert the cable into the sensor through the cable entry
Fig. 19: Connection steps 5 and 6
6
Insert the wire ends into the terminals according to the wiring plan
Information:
Solid cores as well as flexible cores with cable end sleeves are
inserted directly into the terminal openings. In case of flexible cores
without end sleeves, press the terminal head with a small screwdriver;
the terminal opening is freed. When the screwdriver is released, the
terminal closes again.
7
Check the hold of the wires in the terminals by lightly pulling on
them
8
Connect the screen to the internal ground terminal, connect the
outer ground terminal to potential equalisation
9
Tighten the compression nut of the cable entry. The seal ring must
completely encircle the cable
10 Screw the housing cover on
The electrical connection is finished.
Information:
The terminal block is pluggable and can be removed from the
electronics. To do this, lift the terminal block with a small screwdriver
and pull it out. When inserting the terminal block again, you should
hear it snap in.
The following illustration applies to the non-Ex as well as to the Ex-ia
version.
26
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
5.3 Wiring plan, single chamber housing
5 Connecting to power supply
Electronics and connection compartment
2
3
4...20mA
(+)1
2(-)
5
6
7
8
4
1
Fig. 20: Electronics and connection compartment, single chamber housing
1
2
3
4
Voltage supply/Signal output
For indicating and adjustment module or interface adapter
For external indicating and adjustment unit
Ground terminal for connection of the cable screen
5.4 Wiring plan, double chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-ia
version.
Electronics compartment
2
4...20mA
(+)1
2(-)
1
5
6
7 8
1
Fig. 21: Electronics compartment, double chamber housing
38294-EN-110209
1
2
Internal connection to the connection compartment
For indicating and adjustment module or interface adapter
Information:
The connection of an external indicating and adjustment unit is not
possible with this double chamber housing.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
27
5 Connecting to power supply
Connection compartment
2
4...20mA
(+)1
2(-)
3
1
Fig. 22: Connection compartment, double chamber housing
1
2
3
Voltage supply/Signal output
For indicating and adjustment module or interface adapter
Ground terminal for connection of the cable screen
Radio module
PLICSMOBILE integrated in the connection
compartment
Status
SIM-Card
Test
USB
Bus
(+)1
2(-)
1
Fig. 23: CConnection of the voltage supply of the radio module
1
Voltage supply
You can find detailed information for connection in the supplementary
instructions "PLICSMOBILE GSM/GPRM radio module".
38294-EN-110209
28
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
5 Connecting to power supply
5.5 Wiring plan with double chamber housing Ex d
Electronics compartment
2
4...20mA
(+)1
2(-)
1
5
6
7 8
3
Fig. 24: Electronics compartment, double chamber housing
1
2
3
Internal connection to the connection compartment
For indicating and adjustment module or interface adapter
Internal connection to the plug connector for external indicating and
adjustment unit (optional)
Connection compartment
4...20mA
(+)1
2(-)
2
1
Fig. 25: Connection compartment with double chamber housing Ex d
Voltage supply/Signal output
Ground terminal for connection of the cable screen
38294-EN-110209
1
2
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
29
5 Connecting to power supply
Plug M12 x 1 for VEGADIS 61
4
3
1
2
Fig. 26: Top view of the plug connector
1
2
3
4
Pin
Pin
Pin
Pin
1
2
3
4
Contact pin
Colour connection cable in the
sensor
Terminal, electronics
Pin 1
Brown
5
Pin 2
White
6
Pin 3
Blue
7
Pin 4
Black
8
5.6 Wiring plan - version IP 66/IP 68, 1 bar
Wire assignment connection cable
+
1
2
Fig. 27: Wire assignment fix-connected connection cable
1
2
brown (+) and blue (-) to power supply or to the processing system
Shielding
5.7 Switch on phase
After connecting the instrument to power supply or after a voltage
recurrence, the instrument carries out a self-check for approx. 30 s:
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30
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
l
Internal check of the electronics
Indication of the instrument type, hardware and software version,
measurement loop name on the display or PC
Indication of the status message "F 105 Determine measured
value" on the display or PC
The output signal jumps to the set error current
5 Connecting to power supply
38294-EN-110209
As soon as a plausible measured value is found, the corresponding
current is outputted to the signal cable. The value corresponds to the
actual level as well as the settings already carried out, e.g. factory
setting.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
31
6 Set up with the indicating and adjustment module
6 Set up with the indicating and adjustment
module
6.1 Insert indicating and adjustment module
Mount/Dismount 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.
Fig. 28: Insert indicating and adjustment module
32
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
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.
6 Set up with the indicating and adjustment module
6.2 Adjustment system
1
2
Fig. 29: Indicating and adjustment elements
Key functions
LC display
Adjustment keys
l
[OK] key:
- Move to the menu overview
- Confirm selected menu
- Edit parameter
- Save value
l
[->] key:
- Presentation change measured value
- Select list entry
- Select editing position
l
[+] key:
- Change value of the parameter
l
[ESC] key:
- interrupt input
- Jump to next higher menu
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.
38294-EN-110209
Adjustment system
1
2
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
33
6 Set up with the indicating and adjustment module
6.3 Parameter adjustment
Through the parameter adjustment the instrument is adapted to the
application conditions. The parameter adjustment is carried out via an
adjustment menu.
Information:
In this operating instructions manual, the instrument-specific parameters are described. Further general parameters are described in the
operating instructions manual "Indicating and adjustment module".
Main menu
The main menu is divided into five areas with the following functions:
Setup: Settings, for example, to measurement loop name, medium,
application, vessel, adjustment, signal output
Display: Settings, for example language, measured value display,
lighting
Diagnosis: Information, for example to the instrument status, pointer,
reliability, simulation, echo curve
Further settings: Instrument unit, false signal suppression, linearisation curve, reset, date/time, reset, copy function
Info: Instrument name, hardware and software version, calibration
date, instrument features
In the main menu point "Setup", the individual submenu points should
be selected subsequently and provided with the correct parameters to
ensure the optimum adjustment of the measurement. The procedure is
described in the following.
Setup
Setup/Medium
Each medium has different reflection properties. With liquids, further
interfering factors are fluctuation product surface and foam generation.
With bulk solids, these are dust generation, material cone and
additional echoes from the vessel wall.
To adapt the sensor to these different measuring conditions, the
selection "Liquid" or "Bulk solid" should be made in this menu item.
38294-EN-110209
34
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
6 Set up with the indicating and adjustment module
Through this selection, the sensor is adapted perfectly 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 with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup
Setup/Application
In addition to the medium, also the application or the application place
can influence the measurement.
With this menu item, the sensor can be adapted to the applications.
The adjustment possibilities depend on the selection "Liquid" or "Bulk
solid" under "Medium".
The following options are available when "Liquid" is selected:
38294-EN-110209
The selection "Standpipe" opens a new window in which the inner
diameter of the applied standpipe is entered.
The following features form the basis of the applications:
Storage tank:
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
35
6 Set up with the indicating and adjustment module
l
l
l
Setup: large-volumed, upright cylindrical, spherical
Product speed: slow filling and emptying
Process/measurement conditions
- Condensation
- Smooth product surface
- Max. requirement to the measurement accuracy
Storage tanke with product circulation:
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l
l
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Setup: large-volumed, upright cylindrical, spherical
Product speed: slow filling and emptying
Vessel: small laterally mounted or large top mounted stirrer
Process/measurement conditions
- Relatively smooth product surface
- Max. requirement to the measurement accuracy
- Condensation
- Slight foam generation
- Overfilling possible
Storage tank on ships (Cargo Tank):
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Product speed: slow filling and emptying
Vessel:
- Installations in the bottom section (bracers, heating spirals)
- High sockets 200 … 500 mm, also with large diameters
l
Process/measurement conditions:
- Condensation, buildup by movement
- Max. requirement on measurement accuracy from 95 %
Stirrer vessel (reactor):
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Setup: all vessel sizes possible
Product speed:
- Fast to slow filling possible
- Vessel is very often filled and emptied
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Vessel
- Socket available
- Large agitator blades of metal
- Vortex breakers, heating spirals
l
Process/measurement conditions
- Condensation, buildup by movement
- Strong spout generation
- Very agitated surface, foam generation
Dosing vessel:
Setup: all vessel sizes possible
Product speed:
- Fast filling and emptying
- Vessel is very often filled and emptied
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Vessel: narrow installation situation
Process/measurement conditions
- Condensation, buildup on the antenna
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
36
l
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6 Set up with the indicating and adjustment module
-
Foam generation
Standpipe:
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Product speed: very fast filling and emptying
Vessel
- Vent hole
- Joins like flanges, weld joints
- Shifting of the running time in the tube
l
Process/measurement conditions
- Condensation
- Buildup
Bypass:
l
Product speed:
- Fast up to slow filling with short up to long bypass tube
possible
- Often the level is hold via a control facility
l
Vessel
- Lateral outlets and inlets
- Joins like flanges, weld joints
- Shifting of the running time in the tube
l
Process/measurement conditions
- Condensation
- Buildup
- Separation of oil and water possible
- Overfilling into the antenna possible
Plastic tank:
l
Vessel
- Measurement fix mounted or integrated
- Measurement depending on the application through the vessel
top
- With empty vessel, the measurement can be carried out
through the bottom
l
Process/measurement conditions
- Condensation on the plastic ceiling
- In outside facilities water and snow on the vessel top possible
38294-EN-110209
Transportable plastic tank:
l
Vessel
- Material and thickness different
- Measurement through the vessel top
l
Process/measurement conditions
- Measured value jump with vessel change
Open water (gauge measurement):
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Gauge rate of change: slow gauge change
Process/measurement conditions
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
37
6 Set up with the indicating and adjustment module
-
Distance sensor to water surface to big
Extreme damping of output signal due to wave generation
Ice and condensation on the antenna possible
Spiders and insect nestle in the antennas
Floating material and animals sporadically on the water
surface
Open flume (flow measurement):
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Gauge rate of change: slow gauge change
Process/measurement conditions
- Ice and condensation on the antenna possible
- Spiders and insect nestle in the antennas
- Smooth water surface
- Exact measurement result required
- Distance to the water surface normally relatively high
Rain water overfall (weir):
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Gauge rate of change: slow gauge change
Process/measurement conditions
- Ice and condensation on the antenna possible
- Spiders and insect nestle in the antennas
- Turbulent water surface
- Sensor flooding possible
Demonstration:
l
l
l
Adjustment for all applications which are not typically level
measurement
Sensor accepts all measured value changes within the measuring
range immediately
Typical applications
- Instrument demonstration
- Object recognition/monitoring (additional settings required)
Caution:
If a separation of liquids with different εr values occurs in the vessel, for
example through condensation, the radar sensor can detect under
certain circumstances only the medium with the higher dielectric value.
Keep in mind that layer interfaces can cause faulty measurements.
If you want to measure the total height of both liquids reliably, please
contact our service department or use an instrument specially
designed for interface measurement.
The following options are available when "Bulk solid" is selected:
38
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
The following features form the basis of the applications:
6 Set up with the indicating and adjustment module
Silo (slim and high):
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Vessel of metal: weld joints
Process/measurement conditions:
- Filling too close to the sensor
- System noise with completely empty silo increased
- Automatic false signal suppression with partly filled vessel
Bunker (large-volumed):
l
Vessel of concrete or metal:
- Structured vessel walls
- Installations present
l
Process/measurement conditions:
- Large distance to the medium
- Large angles of repose
Bunker with fast filling:
l
Vessel of concrete or metal, also multiple chamber silo:
- Structured vessel walls
- Installations present
l
Process/measurement conditions:
- Measured value jumps, e.g. by truck loading
- Large distance to the medium
- Large angles of repose
Heap:
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l
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Sensor mounting on movable conveyor belts
Detection of the heap profile
Height detection during filling
Process/measurement conditions:
- Measured value jumps, e.g. by the profile of the heap or
traverses
- Large angles of repose
- Measurement near the filling stream
Crusher:
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Vessel: installations, wear and protective facilities available
Process/measurement conditions:
- Measured value jumps, e.g. by truck loading
- Fast reaction time
- Large distance to the medium
Demonstration:
38294-EN-110209
l
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Adjustment for all applications which are not typically level
measurement
Sensor accepts all measured value changes within the measuring
range immediately
Typical applications
- Instrument demonstration
- Object recognition/monitoring (additional settings required)
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
39
6 Set up with the indicating and adjustment module
Through this selection, the sensor is adapted optimally to the
application or the location and measurement reliability under the
various basic conditions is increased considerably.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup/Vessel height,
measuring range
With this selection, the operating range of the sensor is adapted to the
vessel height and the reliability with different frame conditions is
increased considerably.
Independent from this, the min. adjustment must be carried out.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup/Vessel form
Also the vessel form can influence the measurement apart from the
medium and the application. To adapt the sensor to these measurement conditions, this menu item offers you different options for vessel
bottom and ceiling in case of certain applications.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup/Adjustment
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
40
Because a radar sensor 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. By
means of these settings, the real level is calculated.
6 Set up with the indicating and adjustment module
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.
Setup/Min. adjustment
1
Select the menu item "Setup" with [->] and confirm with [OK]. Now
select with [->] the menu item "Min. adjustment" and confirm with
[OK].
2
Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3
Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the distance value.
4
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.
5
Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
Proceed as follows:
1
Select with [->] the menu item max. adjustment and confirm with
[OK].
2
Prepare the percentage value for editing with [OK] and set the
cursor to the requested position with [->].
38294-EN-110209
Setup/Max. adjustment
Proceed as follows:
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
41
6 Set up with the indicating and adjustment module
3
Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the distance value.
4
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 min. distance to the antenna edge.
5
Save settings with [OK]
Further settings
Further settings/False signal suppression
The following circumstances cause interfering reflections and can
influence the measurement:
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High sockets
Vessel installations such as struts
Agitators
Buildup or welded joints on vessel walls
Note:
A false signal suppression detects, marks and saves these false
signals so that they are no longer taken into account for level
measurement.
This should be done with a low level so that possible interfering
reflections can be detected.
Proceed as follows:
Select the menu item "Additional settins" with [->] and confirm with
[OK]. With [->] you have to select the menu item "False signal
suppression" and confirm with [OK].
2
Confirm again with [OK].
3
Confirm again with [OK] and select with [->] "Create new".
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
42
1
6 Set up with the indicating and adjustment module
4
Confirm again with [OK] and enter the actual distance from the
sensor to the product surface.
5
All interfering signals in this section are detected by the sensor
and stored 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.
Further settings/Linearization curve
A linearization 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 linearization curves are preprogrammed for
these vessels. They represent the correlation between the level
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".
38294-EN-110209
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [ESC] and [->] key.
Caution:
Note the following if the instrument with corresponding approval is
used as part of an overfill protection system according to WHG:
If a linearisation curve is selected, the measuring signal is no longer
compulsorily linear proportional to the level. This must be taken into
consideration by the user, particularly when adjusting the switching
point on the level switch.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
43
6 Set up with the indicating and adjustment module
Additional settings - Reset
When a reset is carried out, all settings (with only a few exceptions) are
reset. The exceptions are: PIN, language, lighting, SIL and HART
mode.
The following reset functions are available:
Delivery status: Restoring the parameter settings at the time of
shipment from the factory incl. the order-specific settings. A created
false signal suppression, user-programmable linearization curve as
well as the measured value memory will be deleted.
Basic settings: Resetting the parameter settings incl. special and
laboratory parameters to the default values of the respective instrument. A created false signal suppression, user programmable
linearization curve as well as the measured value memory will be
deleted.
Setup: Resetting of the parameter settings to the default values of the
respective instrument in the menu item Setup. Order-related settings
remain but are not taken over into the current parameters. Usergenerated false signal suppression, user-programmed linearization
curve, measured value memory as well as event memory remain
untouched. The linearization is set to linear.
False signal suppression: Deleting a previously created false signal
suppression. The false signal suppression created in the factory
remains active.
Peak values distance: Resetting the measured min. and max.
distances to the actual measured value.
The following table shows the default values of the instrument.
Depending on the instrument version, not all menu items are available
or differently assigned:
Menu item
Default value
Setup
Measurement
loop name
Sensor
Medium
Liquid/Water
Bulk solids/Crushed stones, gravel
Application
Storage tank
Silo
Vessel form
Vessel bottom, dished boiler end
Vessel top, dished boiler end
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
44
Menu
6 Set up with the indicating and adjustment module
Menu
Display
Further settings
Menu item
Default value
Vesell height/
Measuring range
Recommended measuring range, see
"Technical data" in the supplement
Min. adjustment
Recommended measuring range, see
"Technical data" in the supplement
Max. adjustment
0,000 m(d)
Damping
0.0 s
Current output
mode
4 … 20 mA, < 3.6 mA
Current output
Min./Max.
Min. current 3.8 mA, max. current
20.5 mA
Lock operation
Released
Language
According to order
Displayed value
Distance
Display unit
m
Scaling size
Volume
l
Scaling
0.00 lin %, 0 l
100.00 lin %, 100 l
Lighting
Switched off
Distance unit
m
Temperature unit
°C
Probe length
Length of the standpipe Ex factory
Linearisation curve
linear
HART mode
Standard
Address 0
6.4 Saving the parameter adjustment data
38294-EN-110209
It is recommended noting the adjusted data, e.g. in this operating
instructions manual and archive them afterwards. They are hence
available for multiple use or service purposes.
If the instrument is equipped with an indicating and adjustment
module, the data in the sensor can be saved in 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.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
45
6 Set up with the indicating and adjustment module
The following data or settings for adjustment of the indicating and
adjustment module are saved:
l
l
l
All data of the menu "Setup" and "Display"
In the menu "Additional settings" the items "Distance unit,
temperature unit and linearization"
The values of the user programmable linearization curve
The function can be also used to transfer settings from one instrument
to another instrument of the same type. If it is necessary to exchange a
sensor, then the indicating and adjustment module is inserted into the
replacement instrument and the data are also written into the sensor
via the menu item "Copy sensor data".
38294-EN-110209
46
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
7 Setup with PACTware
7 Setup with PACTware
7.1 Connecting the PC
Via the interface adapter
directly on the sensor
2
1
3
Fig. 30: Connection of the PC directly to the sensor via the interface adapter
1
2
3
USB cable to the PC
Interface adapter VEGACONNECT 4
Sensor
Information:
The interface adapter VEGACONNECT 3 or additional previous
versions are not suitable for connection to the sensor.
Via the interface adapter
and HART
2
4
CK
N
OPE
3
USB
TWIST
LO
1
38294-EN-110209
Fig. 31: Connecting the PC via HART to the signal cable
1
2
3
4
5
Sensor
HART resistance 250 Ω (optional depending on processing)
Connection cable with 2 mm pins and terminals
Processing system/PLC/Voltage supply
Interface adapter, for example VEGACONNECT 4
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
47
7 Setup with PACTware
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, VEGAMET 381, VEGAMET 391. Common Ex separators are
also usually equipped with a sufficient current limitation resistance. In
such cases, the interface converter can be connected parallel to the
4 … 20 mA cable (dashed line in the previous illustration).
7.2 Parameter adjustment with PACTware
Prerequisites
For parameter adjustment of the sensor via a Windows PC, the
configuration software PACTware and a suitable instrument driver
(DTM) according to FDT standard are required. The up-to-date
PACTware version as well as all available DTMs are compiled in a
DTM Collection. The DTMs can also be integrated in other frame
applications according to FDT standard.
Note:
To ensure that all instrument functions are supported, you should
always use the latest DTM Collection. Furthermore, not all described
functions are included in older firmware versions. You can download
the latest instrument software from our homepage. A description of the
update procedure is also available in the Internet.
Further setup steps are described in the operating instructions manual
"DTM Collection/PACTware" attached to each DTM Collection and
which can also be downloaded from the Internet. Detailed descriptions
are available in the online help of PACTware and the DTMs.
38294-EN-110209
48
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
7 Setup with PACTware
Fig. 32: Example of a DTM view
Standard/Full version
All device DTMs are available as a free-of-charge standard version
and as a full version that must be purchased. In the standard version,
all functions for complete setup are already included. An assistant for
simple project configuration simplifies the adjustment considerably.
Saving/printing the project as well as import/export functions are also
part of the standard version.
In the full version there is also an extended print function for complete
project documentation as well as a save function for measured value
and echo curves. In addition, there is a tank calculation program as
well as a multiviewer for display and analysis of the saved measured
value and echo curves.
The standard version is available as a free-of-charge download under
http://www.vega.com. The full version is available on CD from the
agency serving you.
7.3 Saving the parameter adjustment data
38294-EN-110209
We recommend documenting or saving the parameter adjustment data
via PACTware. That way the data are available for multiple use or
service purposes.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
49
8 Set up with other systems
8 Set up with other systems
8.1 DD adjustment programs
Device descriptions as Enhanced Device Description (EDD) are
available for DD adjustment programs such as, for example, AMS™
and PDM.
A free-of-charge download of these files is available via Internet. Move
via www.vega.com and "Downloads" to "Software".
8.2 Communicator 375, 475
Device descriptions for the instrument are available as DD or EDD for
parameter adjustment with the Field Communicator 375 or 475.
A free-of-charge download of these files is available via Internet. Move
via www.vega.com and "Downloads" to "Software".
38294-EN-110209
50
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
9 Diagnosis, fault rectification and service
9 Diagnosis, fault rectification and service
9.1 Maintenance
When the device is used correctly, no maintenance is required in
normal operation.
9.2 Measured value and event memory
Measured value memory
The instrument has an integrated measured value memory with time
stamp. Up to 100,000 measured values can be saved in the sensor in
a ringing memory. Each entry contains date/time as well as the
respective measured value.
Stored values are for exmaple sensor value, level, current value,
reliability and electronics temperature. The data remain even in case of
voltage interruption.
Via a PC with PACTware/DTM or the control system with EDD, the
requested values and recording conditions are stipulated. Data are
also read our or reset.
Event memory
The instrument also has an integrated event memory with time stamp.
Up to 500 events are automatically stored in the sensor and are delete
protected. Each entry contains date/time, event time, event description
and value.
Event types are, for example, parameter modifications, status and
error messages as well as switch on and switch off times. The data
remain also in case of voltage interruption.
The data are read out via a PC with PACTware/DTM or the control
system with EDD.
Echo curve memory
The instrument also has an integrated echo curve memory in which
echo curves can be stored for diagnostic purposes. The echo curves
are stored with date and time as well as the corresponding echo data.
The data remain even in case of voltage interruption. The memory is
divided into two sections:
Echo curve of the setup: here you can store the echo curve as a
reference during setup. This echo curve can be used, for example, to
detect changes of the installation conditions or buildup on the antenna.
38294-EN-110209
Echo curve memory: up to 10 echo curves can be stored in a ring
buffer in this memory section.
The requested values and recording conditions are defined via a PC
with PACTware/DTM or the control system with EDD. Data are also
read out or reset. Depending on the instrument, the echo curve
created during setup can be stored alternatively also via the indicating
and adjustment module.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
51
9 Diagnosis, fault rectification and service
9.3 Error messages according to NE 107
The instrument has self-monitoring and diagnosis according to NE 107
and VDI/VDE 2650. Status messages are outputted on the device
status. Detailed messages are visible under diagnosis via DTM,
indicating and adjustment module and EDD. The messages are
divided into the following categories:
Failure: Due to a malfunction in the instrument, a failure message is
outputted. This status message is always activated and cannot be
deactivated.
Function check: The instrument is in operation, the measured value is
temporarily invalid (for example during simulation). This status
message is always activated and cannot be deactivated by the user.
Out of specification: The measured value is unstable because the
instrument specification is exceeded (e.g. electronics temperature).
This status message is always inactive and can be activated via DTM
and EDD. The error codes and text messages are dispayed via the
indicating and adjustment module as well as DTM and EDD in the
control system. Additional information on error statstics is displayed in
the menu Diagnosis under "Device status" in the indicating and
adjustment module as well as in the DTM and EDD.
Maintenance: Due to external influences, the instrument function is
limited. The measurement is affected but the measured value is still
valid. Plan instrument for maintenance because failure must be
expected in the near future (for example due to buildup). This status
message is always inactive and can be activated via DTM and EDD.
The error codes are dispayed via the indicating and adjustment
module as well as DTM and EDD in the control system. Additional
information on error statstics is displayed in the menu Diagnosis under
"Device status" in the indicating and adjustment module as well as in
the DTM and EDD.
Failure
The following table shows the error codes and text messages in the
status message "Failure" and provides information on causes as well
as corrective measures.
Code
Text message
Cause
F013
no measured
value available
l Sensor does not detect an l Check or correct installaecho during operation
tion and/or parameter adjustment
l Antenna system contaminated or defective
l Clean or exchange process
component or antenna
Removal
52
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
F017
l Adjustment not within spe- l Change adjustment accorcification
ding to the limit values
Adjustment
(difference between min.
span too small
and max. ≥ 10 mm)
9 Diagnosis, fault rectification and service
Code
Text message
Cause
Removal
F025
Error in the linearization
table
l Index markers are not
continuously rising, for
examle unlogical value
pairs
l Check linearization table
l Delete table/Create new
F036
No operable
software
l Failed or interrupted software update
l Repeat software update
l Check electronics version
l Exchange of the electronics
l Send instrument for repair
F040
Error in the
electronics
l Hardware defect
l Exchange of the electronics
l Send instrument for repair
F080
l General software error
l Separate operating voltage
briefly
F105
Determine
measured value
l The instrument is still in the l Wait for the warm-up phase
start phase, the measured l Duration depending on the
value could not yet be
version and parameter addetermined
justment up to approximately 3 min.
F113
Communication error
l EMC interferences
l Remove EMC influences
l Transmission error with the l Exchange 4-wire power
external communication
supply unit or electronics
with 4-wire power supply
unit
38294-EN-110209
F125
l Temperature of the electronics in the non-specified
Unpermissible
section
electronics
temperature
l Check ambient temperature
l Isolate electronics
l Use instrument with higher
temperature range
F260
Error in the
calibration
l Error in the calibration car- l Exchange of the electroried out in the factory
nics
l Error in the EEPROM
l Send instrument for repair
F261
Error in the
configuration
l Error during setup
l False signal suppression
faulty
l Error when carrying out a
reset
l Repeat setup
l Repeat reset
F264
Installation/Setup error
l Adjustment not within the
vessel height/measuring
range
l Max. measuring range of
the instrument not sufficient
l Check or correct installation and/or parameter adjustment
l Use an instrument with
bigger measuring range
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
53
9 Diagnosis, fault rectification and service
Function check
Out of specification
Code
Text message
Cause
Removal
F265
Measurement
function disturbed
l Sensor does no longer
carry out a measurement
l Operating voltage too low
l Check operating voltage
l Carry out a reset
l Separate operating voltage
briefly
The following table shows the error codes and text messages in the
status message "Function check" and provides information on causes
as well as corrective measures.
Code
Text message
Cause
Removal
C700
Simulation
l Simulation active
l Finish simulation
l Wait for the automatic end
after 60 mins.
The following table shows the error codes and text messages in the
status message "Out of specification" and provides information on
causes as well as corrective measures.
Code
Text message
Cause
S600
l Temperature of the electronics in the non-specified
Unpermissible
section
electronics
temperature
S601
Overfilling
Maintenance
l Check ambient temperature
l Isolate electronics
l Use instrument with higher
temperature range
l Danger of vessel overfilling l Make sure that there is no
further filling
l Check level in the vessel
The following table shows the error codes and text messages in the
status message "Maintenance" and provides information on causes as
well as corrective measures.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
54
Removal
9 Diagnosis, fault rectification and service
Code
Text message
Cause
Removal
M500
Error with the
reset delivery
status
l With the reset to delivery
status, the data could not
be restored
l Repeat reset
l Load XML file with sensor
data into the sensor
M501
Error in the
non-active linearization
table
l Hardware error EEPROM
l Exchange of the electronics
l Send instrument for repair
M502
Error in the
diagnosis memory
l Hardware error EEPROM
l Exchange of the electronics
l Send instrument for repair
M503
Reliability too
low
l The echot/noise ratio is the l Check installation and prosmall for a reliable measucess conditions
rement
l Clean the antenna
l Change polarisation direction
l Use instrument with higher
sensitivity
M504
Error on an
device interface
l Hardware defect
l Check connections
l Exchange of the electronics
l Send instrument for repair
M505
No echo available
l Level echo can no longer
be detected
l Clean the antenna
l Use a more suitable antenna/sensor
l Remove possible false
echoes
l Optimize sensor position
and orientation
38294-EN-110209
9.4 Fault rectification
Reaction when malfunctions occur
The operator of the system is responsible for taking suitable measures
to remove interferences.
Fault rectification
The first measures to be taken are to check the output signal as well as
to evaluate the error messages via the indicating and adjustment
module. 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 this way and faults rectified.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
55
9 Diagnosis, fault rectification and service
Checking the 4 … 20 mA
signal
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
Removal
4 … 20 mA signal Level fluctuations Set damping according to the instrunot stable
ment via the indicating and adjustment
module or PACTware/DTM
4 … 20 mA signal Electrical conmissing
nection faulty
Voltage supply
missing
Check connection according to chapter "Connection steps" and if necessary, correct according to chapter
"Wiring plan"
Check cables for breaks; repair if
necessary
Operating voltage Check, adapt if necessary
too low or load
resistance too
high
Current signal
Oscillator in the
greater than 22 mA sensor defective
or less than
3.6 mA
Exchange the instrument or send it in
for repair
Reaction after fault rectification
Depending on the failure reason and measures taken, the steps
described in chapter "Set up" must be carried out again, if necessary.
24 hour service hotline
Should these measures not be successful, please call in urgent cases
the VEGA service hotline 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.
9.5 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.
56
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
If there is no electronics module available on site, the electronics
module can be ordered via the agent serving you. The electronics
modules are adapted to the respective sensor and differ in the signal
output or the voltage supply.
9 Diagnosis, fault rectification and service
The new electronics module must be loaded with the default settings
of the sensor. These are the options:
l
l
In the factory
Or on site by the user
In both cases, the serial number of the sensor is needed. The serial
numbers are stated on the type label of the instrument, inside the
housing as well as on the delivery note.
When loading on site, first of all the order data must be downloaded
from the Internet (see operating instructions manual "Oscillator").
9.6 Software update
The following components are required to update the sensor software:
l
l
l
l
l
Sensor
Voltage supply
Interface adapter VEGACONNECT 4
PC with PACTware
Current sensor software as file
38294-EN-110209
Caution:
Keep in mind that a software update can lead to expiry of the
approvals. You can find detailed information on our homepage www.
vega.com.
Load sensor software to
PC
At "www.vega.com/downloads" go to "Software". Select under "plics
sensors and instruments", "Firmware updates" the respective instrument 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.
Prepare update
Connect the sensor to power supply and provide a connection from the
PC to the instrument via the interface adapter. Start PACTware and
move via the menu "Project" to the VEGA project assistant. Select
"USB" and "Set instruments online". Activate the project assistant with
"Start". It automatically sets up the connection to the sensor and then
signals "Search complete".
Load software into sensor
Select the sensor in the project and move in the PACTware menu bar
to "Instrument data". The select "Additional functions" and "Software
update". PACTware now checks the actual hardware and software
version of the sensor and displays the data. This process takes
approx. 60 s.
Push the button "Update software" and select the previously extracted
XML file. Then the software update can be started. The additional files
are installed automatically. Depending on the sensor, this procedure
lasts up to 15 min. Then the message appears ""Software update
successfully executed".
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
57
9 Diagnosis, fault rectification and service
9.7 How to proceed in case of repair
If a repair is necessary, please proceed as follows:
You can download a return form (23 KB) from our Internet 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
l
l
l
Print and fill out one form per instrument
Clean the instrument and pack it damage-proof
Attach the completed form and, if need be, also a safety data
sheet outside on the packaging
Please ask the agency serving you for the address of your return
shipment. You can find the competent agency on our website
www.vega.com.
38294-EN-110209
58
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
10 Dismounting
10 Dismounting
10.1 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.
10.2 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 to persons and environment
and ensures recycling of useful raw materials.
Materials: see chapter "Technical data"
38294-EN-110209
If you have no way to dispose of the old instrument properly, please
contact us concerning return and disposal.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
59
11 Supplement
11 Supplement
11.1 Technical data
General data
316L corresponds to 1.4404 or 1.4435
Materials, wetted parts
- Process fitting
-
Process seal
316L
On site (instruments with thread: Klingersil C-4400
is attached)
-
Antenna
316L, 316L electropolished, 316L Safecoat-coated
-
Antenna impedance cone
PTFE (TFM 1600 PTFE), PEEK
-
seal, antenna system
FKM (Viton), FFKM (Kalrez 6375), FFKM (Kalrez 2035), FFKM (Kalrez 6230 - FDA)
Materials, non-wetted parts
- Plastic housing
plastic PBT (Polyester)
-
Aluminium die casting housing
Aluminium die-casting AlSi10Mg, powder-coated basis: Polyester
-
Stainless steel housing
316L
-
Seal between housing and housing
cover
NBR (stainless steel housing, investment casting),
silicone (Aluminium/plastic housing, stainless steel
housing, electro-polished)
-
Inspection window in housing cover
(optional)
Polycarbonate
-
Ground terminal
316L
Ohmic contact
Process fittings
- Pipe thread, cylindrical (ISO 228 T1)
Between ground terminal, process fitting and
antenna
G1½ A according to DIN 3852-A
-
American pipe thread, tapered
1½ NPT, 2 NPT
-
Flanges
DIN from DN 25, ANSI from 1"
Weights
- Instrument (depending on housing,
process fitting and antenna)
-
Antenna extension
Length antenna extension max.
approx. 2 … 17.2 kg (4.409 … 37.92 lbs)
1.6 kg/m (1.157 lbs/ft)
5.85 m (19.19 ft)
Torque for NPT cable glands and Conduit tubes
- Plastic housing
max. 10 Nm (7.376 lbf ft)
Aluminium/Stainless steel housing
max. 50 Nm (36.88 lbf ft)
Input variable
Measured variable
60
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
-
11 Supplement
The measured quantity is the distance between
process fitting of the sensor and product surface.
The reference plane is the seal surface on the
hexagon or the lower side of the flange.
1
3
4
2
Fig. 33: Data of the input variable
1
2
3
4
Reference plane
Measured variable, max. measuring range
Antenna length
Useful measuring range
30 m (98.43 ft)
Max. measuring range
Recommended meas. range depending on the antenna diameter
- ø 40 mm (1.575 in)
up to 15 m (49.21 ft)
-
ø 48 mm (1.89 in)
up to 20 m (65.62 ft)
-
ø 75 mm (2.953 in), 95 mm (3.74 in)
up to 30 m (98.43 ft)
Output variable
4 … 20 mA/HART
38294-EN-110209
Output signal
Fulfilled HART specification
7.0
Signal resolution
0.3 µA
Failure signal current output (adjustable)
mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
Max. output current
22 mA
Starting current
≤ 3.6 mA; ≤ 10 mA for 5 ms after switching on
Load
see load diagram under Power supply
Damping (63 % of the input variable),
adjustable
0 … 999 s
HART output values according to HART 7.01)
- PV (Primary Value)
1)
Distance to the level
Default values, can be assigned individually
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
61
11 Supplement
-
SV (Secondary Value)
Level as percentage value
-
TV (Third Value)
Linearised percentage value
-
QV (Fourth Value)
Scaled measured value
< 1 mm (0.039 in)
Resolution, digital
Accuracy (similar 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)
Installation reference conditions
- Min. distance to installations
> 200 mm (7.874 in)
-
Reflector
Corner reflector
-
False reflections
Largest false echo 20 dB smaller than the useful
echo
Deviation with liquids
See following diagrams
10 mm (0.394 in)
2 mm (0.079 in)
0
- 2 mm (- 0.079 in)
1,0 m (3.28 ft)
- 10 mm (- 0.394 in)
1 2
3
Fig. 34: Deviation under reference conditions
1
2
3
Reference plane
Antenna edge
Recommended measuring range
Reproducibility
≤ ±1 mm
Deviation with bulk solids
The values are considerably application-dependent. Firm specifications are hence not possible.
Deviation under EMC influence
≤ ±30 mm
Temperature drift - Digital output
62
±3 mm/10 K relating to the max. measuring range
or max. 10 mm
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Variables influencing measurement accuracy
Specifications apply to the HART signal and the current output
11 Supplement
Additional deviation through strong, high
frequency electromagnetic fields acc. to EN
61326
<±50 mm
Specifications apply also to the current output
Temperature drift - Current output
±0.03 %/10 K relating to the 16 mA span max.
±0.3 %
Deviation on the current output by analogue/
digital conversion
<±15 µA
Deviation on the current output by strong,
high frequency electromagnetic fields within
EN 61326
<±150 µA
Characteristics and performance data
Frequency
K-band (26 GHz technology)
Measuring cycle time approx.
700 ms
Step response time2)
≤3s
Tracking speed of the measuring window
max.
1 m/min
Beam angle3)
- Horn antenna ø 40 mm (1.575 in)
-
Horn antenna ø 48 mm (1.89 in)
22°
18°
-
Horn antenna ø 75 mm (2.953 in)
10°
-
Horn antenna ø 95 mm (3.74 in)
8°
Emitted HF power (depending on the parameter adjustment)4)
- Average spectral transmission power
-14 dBm/MHz EIRP
density
-
Max. spectral transmission power density
+43 dBm/50 MHz EIRP
-
Max. power density in a distance of 1 m
< 1 µW/cm²
Ambient conditions
Ambient, storage and transport temperature
-40 … +80 °C (-40 … +176 °F)
Process conditions
38294-EN-110209
For the process conditions, please also note the specifications on the type label. The lowest value
always applies.
2)
3)
4)
Time span after a sudden measuring distance change by max. 0.5 m in
liquid applications, max 2 m with bulk solids applications, until the output
signal has taken for the first time 90 % of the final value (IEC 61298-2).
Outside the specified beam angle, the energy of the radar signal has a level
of -3 dB (50 %)
EIRP: Equivalent Isotropic Radiated Power
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
63
11 Supplement
Seal
Antenna impedance cone
Process temperature (measured on the process
fitting)
FKM (Viton)
PTFE
-40 … +130 °C (-40 … +266 °F)
FFKM (Kalrez 6375)
PFFE
-20 … +130 °C (-4 … +266 °F)
PEEK
-20 … +250 °C (-4 … +482 °F)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +210 °C (5 … +410 °F)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +250 °C (5 … +482 °F)
FFKM (Kalrez 2035)
FFKM (Kalrez 6230)
Vessel pressure - horn antenna
- Antenna impedance cone PTFE
-
Antenna impedance cone PEEK
-1 … 40 bar/-100 … 4000 kPa (-14.5 … 580 psi)
-1 … 100 bar/-100 … 10000 kPa (-14.5 … 1450 psi)
Vessel pressure relating to the flange nominal stage
see supplementary instructions manual "Flanges
according to DIN-EN-ASME-JIS"
Vibration resistance5)
- Horn antenna
mechanical vibrations with 4 g and 5 … 100 Hz
Data on rinsing air connection
Pressure max.
6 bar (87.02 psig)
Air quantity without reflux valve
- 0.2 bar (2.9 psig)
2.0 m3/h
-
0.5 bar (7.25 psig)
3.5 m3/h
-
1 bar (14.5 psig)
4.5 m3/h
-
1.5 bar (21.76 psig)
5 m3/h
-
2 bar (29.0 psig)
5.5 m3/h
Thread
G⅛ A
Catch
- with non-Ex
-
Dust protection cover of PE
Threaded plug of 316Ti
with Ex
Reflux valve - unmounted (as option with non-Ex version, included in the scope of delivery with Ex
version)
- Material
316Ti
Seal
FKM (Viton), FFKM (Kalrez 6375)
for tube diameter
6 mm
5)
64
Tested according to the guidelines of German Lloyd, GL directive 2.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
-
11 Supplement
-
opening pressure
0.5 bar (7.25 psig)
-
Nominal pressure stage
PN 250
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar
Cable entry/plug6)
- 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:
-
Double chamber housing
l
1 x plug (depending on the version), 1 x blind
stopper M20 x 1.5
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 optional7)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
optionally8)1 x plug M12 x 1 for external
indicating and adjustment unit
or:
l
Spring-loaded terminals for wire cross-section
- Massive wire, cord
-
Cord with cable end sleeve
1 x plug (depending on the version), 1 x blind
stopper M20 x 1.5; 1 x blind stopper M16 x 1.5
or optionally9)1 x plug M12 x 1 for external
indicating and adjustment unit
0.2 … 2.5 mm² (AWG 24 … 14)
0.2 … 1.5 mm² (AWG 24 … 16)
Electromechanical data - version IP 66/IP 68 (1 bar)
Cable entry
- Single chamber housing
38294-EN-110209
-
1 x IP 68 cable gland M20 x 1.5; 1 x blind stopper
M20 x 1.5
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
Double chamber housing
Connection cable
- Wire cross-section
0.5 mm² (AWG 20)
6)
7)
8)
9)
Depending on the version M12 x 1, according to ISO 4400, Harting, 7/8" FF.
Only with Ex d version
Only with Ex d version
Only with Ex d version
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
65
11 Supplement
-
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)
-
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
Materials
- Housing
-
Inspection window
IP 40
ABS
Polyester foil
Integrated clock
Date format
Day.Month.Year
Time format
12 h/24 h
Time zone Ex factory
CET
Electronics temperature measurement
Resolution
1 °C (1.8 °F)
Accuracy
±1 °C (1.8 °F)
Voltage supply
Operating voltage
- Non-Ex instrument
9.6 … 36 V DC
-
Ex-ia instrument
9.6 … 30 V DC
-
Ex-d-ia instrument
14 … 36 V DC
-
Ex-ia instrument
16 … 30 V DC
-
Ex-d-ia instrument
20 … 36 V DC
Interpolation protection
66
Available
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Operating voltage with lighted indicating and adjustment module
- Non-Ex instrument
16 … 36 V DC
11 Supplement
Permissible residual ripple - Non-Ex, Ex-ia instrument
≤ 0.7 Veff (16 … 400 Hz)
- for 9.6 V< UN < 14 V
-
for 18 V<
UN
< 36 V
≤ 1.0 Veff (16 … 400 Hz)
Permissible residual ripple - Ex-d-ia instrument
≤ 1 Veff (16 … 400 Hz)
- for 18 V< UN < 36 V
Load
see diagram
Ω
1200
927
750
3
500
2
1
250
4
9,6
12
18
14 15,1 16
20
22
24
26
28
30
32
34
36
V
Fig. 35: Voltage diagram
1
2
3
4
HART load
Voltage limit Ex-ia instrument
Voltage limit non-Ex/Ex-d instrument
Operating voltage
Electrical protective measures
Protection, depending on housing version
- Plastic housing
IP 66/IP 67
-
Aluminium housing, stainless steel
housing - investment casting, stainless
steel housing - electro-polished
IP 66/IP 68 (0.2 bar)10)
-
Aluminium and stainless housing, investment casting (optionally available)
IP 66/IP 68 (1 bar)
Overvoltage category
III
Protection class
II
Approvals
38294-EN-110209
Depending on the version, instruments with approvals can have different technical data.
For these instruments, the corresponding approval documents have to be taken into account.
These 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".
10)
The prerequisites for maintaining the protection rating are a suitable cable
as well as correct mounting.
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
67
11 Supplement
11.2 Dimensions
The following dimensional drawings represent only an extract of the
possible versions. Detailed dimensional drawings can be downloaded
on www.vega.com under "Downloads" and "Drawings".
Plastic housing
~ 69 mm
(2.72")
ø 79 mm
(3.03")
~ 84 mm (3.31")
ø 79 mm
(3.31")
112 mm (4.41")
112 mm (4.41")
M16x1,5
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
1
2
2
Single chamber version
Double chamber version
Aluminium housing
~ 87 mm (3.43")
~ 116 mm (4.57")
ø 86 mm
(3.39")
ø 86 mm (3.39")
M20x1,5
M20x1,5/
½ NPT
1
1
2
120 mm (4.72")
116 mm (4.57")
M16x1,5
M20x1,5/
½ NPT
2
Single chamber version
Double chamber version
38294-EN-110209
68
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
11 Supplement
Aluminium housing in protection rating IP 66/IP 68 (1 bar)
~ 105 mm (4.13")
~ 150 mm (5.91")
ø 84 mm
(3.31")
ø 84 mm (3.31")
M20x1,5
120 mm (4.72")
116 mm (4.57")
M16x1,5
M20x1,5
M20x1,5/
½ NPT
1
1
2
2
Single chamber version
Double chamber version
Stainless steel housing
~ 69 mm
(2.72")
ø 79 mm
(3.11")
~ 59 mm
(2.32")
ø 80 mm
(3.15")
~ 87 mm (3.43")
ø 86 mm
(3.39")
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
2
M20x1,5/
½ NPT
3
Single chamber version, electropolished
Single chamber version, precision casting
Double chamber version, precision casting
38294-EN-110209
1
2
2
120 mm (4.72")
112 mm (4.41")
117 mm (4.61")
M16x1,5
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
69
11 Supplement
Stainless steel housing in protection rating IP 66/IP 68, 1 bar
~ 93 mm
(3.66")
~ 103 mm
(4.06")
~ 105 mm (4.13")
ø 84 mm
(3.31")
ø 80 mm
(3.15")
ø 77 mm
(3.03")
120 mm (4.72")
112 mm (4.41")
M20x1,5
M20x1,5/
½ NPT
1
1
2
2
117 mm (4.61")
M16x1,5
M20x1,5/
½ NPT
2
3
Single chamber version, electropolished
Single chamber version, precision casting
Double chamber version, precision casting
38294-EN-110209
70
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
11 Supplement
144 mm (5.67")
2
y
G1½A / 1½ NPT
mm
y
x
1½"
100
ø40
2"
120
ø48
3"
216
ø75
4"
430
ø95
22 mm (0.87")
38 mm (1.50")
1
SW 46 mm
(1.81")
22 mm (0.87")
VEGAPULS SR 68 - horn antenna in threaded version
x
y
1½"
3.94"
4.72"
8.50"
16.93"
2"
3"
4"
x
ø1.58"
ø1.89"
ø2.95"
ø3.74"
y
inch
x
Fig. 41: Radar sensor with horn antenna in threaded version
Standard
With temperature adapter up to 250 °C
38294-EN-110209
1
2
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
71
11 Supplement
VEGAPULS SR 68 - horn antenna in flange version
2
y
165 mm (6.5")
60 mm
(2.36")
1
x
mm
y
x
inch
y
1½"
100
ø40
1½"
2"
120
ø48
2"
3"
216
ø75
3"
4"
430
ø95
4"
3.94"
4.72"
8.50"
16.93"
x
ø1.58"
ø1.89"
ø2.95"
ø3.74"
Fig. 42: Radar sensor with horn antenna in flange version
1
2
Standard
With temperature adapter up to 250 °C
38294-EN-110209
72
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
11 Supplement
VEGAPULS SR 68 - horn antenna and swivelling holder
max. 15
°
(0.59")
1
x
146 m
mm
y
x
1½"
100
ø 40
2"
120
ø 48
3"
216
ø 75
4"
430
ø 95
inch
y
x
1½"
2"
3"
3.94"
4.72"
8.50"
16.93"
ø 1.58"
ø 1.89"
ø 2.95"
ø 3.74"
y
4"
20 m
m
(0.79
")
y
20 m
m
(0.79
")
m (5.7
5")
40 m
m
(1.58
")
2
x
Fig. 43: Radar sensor with horn antenna and swivelling holder
Standard
With temperature adapter up to 250 °C
38294-EN-110209
1
2
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
73
11 Supplement
11.3 Industrial property rights
VEGA product lines are global protected by industrial property rights.
Further information seehttp://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 unterhttp://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 sitehttp://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 webhttp://www.vega.com.
Линии продукции фирмы ВЕГА защищаются по всему миру
правами на интеллектуальную собственность. Дальнейшую
информацию смотрите на сайтеhttp://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>。
11.4 Trademark
All the brands as well as trade and company names used are property
of their lawful proprietor/originator.
38294-EN-110209
74
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
Index
INDEX
A
K
Accessory
- External indicating and adjustment unit 9
- External radio unit 10
- Flanges 10
- Indicating and adjustment module 9
- Interface adapter 9
- Protective cover 10
Adjustment 40
- Max. adjustment 41
- Min. adjustment 41
Adjustment system 33
Agitator 19
Application
- Bulk solid 38
- Liquid 35
- Standpipe 35
Key function 33
C
Cable entry 24
Check signal 56
Connection cable 24
Connection procedure 25
Connection technology 25
L
Linearisation curve 43
M
Main menu 34
Measured value memory 51
Medium
- Bulk solid 34
Moisture 11
N
NAMUR NE 107
- Failure 52
- Function check 54
- Maintenance 54
- Out of specication 54
O
Overfill protection according to WHG 43
P
DD (Device Description) 50
Default values 44
Packaging 8
Polarisation plane 12
Potential equalisation 25
E
R
Echo curve memory 51
EDD (Enhanced Device Description) 50
Electronics and connection compartment, single
chamber housing 27
Electronics compartment, double chamber housing 27, 29
Event memory 51
Reflection properties 35
Repair 58
Replacement parts
- Antenna impedance cone 10
- Electronics module 10
Reset 44
D
S
F
38294-EN-110209
False signal suppression 42
Fault rectification 55
Functional principle 8
G
Serial number 7
Service hotline 56
Shielding 25
Status messages 52
Storage 9
Subsurface enclosure 21
Grounding 25
T
H
Type label 7
HART resistor 48
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
75
Index
V
Vessel form 40
Vessel height 40
Vessel installations 19
Vessel insulation 21
Voltage supply 24
38294-EN-110209
76
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Index
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
77
Index
38294-EN-110209
78
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-110209
Index
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
79
Printing date:
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 available at the time of printing.
© VEGA Grieshaber KG, Schiltach/Germany 2011
Subject to change without prior notice
38294-EN-110209
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