VEGA PULS45 User Manual

Operating Instructions
VEGAPULS 42, 44 and 45 – VBUS
Level and Pressure
Contents
Safety information ........................................................................ 3
Note Ex area ................................................................................ 3
1.1 Function................................................................................. 4
1.2 Application features ............................................................. 6
1.3 Adjustment ............................................................................ 6
2 Types and versions
2.1 Overview .............................................................................. 9
2.2 Type code........................................................................... 11
2.3 Antennas............................................................................. 12
3 Mounting and installation
3.1 General installation instructions ........................................ 14
3.2 Measurement of liquids ..................................................... 16
3.3 Measurement in standpipe (surge or bypass tube) ...... 18
3.4 False echoes ...................................................................... 25
3.5 Installation mistakes ........................................................... 27
Contents
4 Electrical connection
4.1 Connection and connection cable .................................... 30
4.2 Connection of the sensor .................................................. 33
4.3 Connection of the external indicating instrument
VEGADIS 50 ....................................................................... 34
4.4 Configuration of measuring systems ............................... 35
2 VEGAPULS 42, 44 and 45 – VBUS
Contents
5Setup
5.1 Adjustment structure ......................................................... 42
5.2 Adjustment with the PC on the signal
conditioning instrument ...................................................... 43
5.3 Adjustment with VEGAMET or MINICOM ........................ 69
5.4 Adjustment with the PC on VEGALOG ............................ 76
6 Diagnosis
6.1 Simulation ............................................................................ 82
6.2 Error code .......................................................................... 82
7 Technical data
7.1 Data ..................................................................................... 83
7.2 Approvals ........................................................................... 88
7.3 Dimensions ......................................................................... 89

Safety information

Please read this manual carefully, and also take note of country-specific installation standards (e.g. the VDE regulations in Germany) as well as all prevailing safety regulations and acci­dent prevention rules. For safety and warranty reasons, any internal work on the instruments, apart from that in­volved in normal installation and electrical con­nection, must be carried out only by qualified VEGA personnel.
VEGAPULS 42, 44 and 45 – VBUS 3

Note Ex area

Please note the attached safety instructions containing important information on installation and operation in Ex areas. These safety instructions are part of the oper­ating instructions and come with the Ex ap­proved instruments.

1 Product description

Product description
VEGAPULS series 40 sensors are a newly developed generation of very compact, small radar sensors for high resolution and accu­racy. They are characterised by special focusing features for level measurement in narrow space applications. With modest space requirements they were developed for measuring distances of 0 … 4 m/10 m/20 m and for standard applications such as stor­age vessels and buffer tanks as well as for process tanks. With small housing dimen­sions and process fittings, the compact sen­sors monitor your levels at reasonable cost. With the integrated display they enable high precision level measurements and due to their advantages, radar sensors have increasingly become the standard solution for many applications, even for those where it was previously unthinkable due to high costs.
VEGAPULS 40 radar sensors utilise two-wire technology perfectly. The supply voltage and the output signal are transmitted via one two­wire cable. They provide a digital output signal (VBUS or Profibus) or an analogue 4 … 20 mA signal as output or measuring signal.
This operating instruction manual relates to VEGAPULS 42, 44 and 45 sensors with digital VBUS output signal (VEGA-Bus).

1.1 Function

Radio detecting and ranging: Radar.
VEGAPULS radar sensors are used for non­contact, continuous distance measurement. The measured distance corresponds to a filling height and is outputted as level.
Measuring principle:
emission – reflection – reception
Tiny 26 GHz radar signals are emitted from the antenna of the radar sensor as short pulses. The radar impulses reflected by the sensor environment and the product are received by the antenna as radar echoes. The running period of the radar impulses from emission to reception is proportional to the distance and hence to the level.
Meas. distance
emission - reflection - reception
The radar impulses are emitted by the an­tenna system as pulse packages with a pulse duration of 1 ns and pulse intervals of 278 ns; this corresponds to a pulse package frequency of 3.6 MHz. In the impulse inter­vals, the antenna system operates as re­ceiver. Signal running periods of less than one billionth of a second must be processed and the echo image evaluated in a fraction of a second.
1 ns
278 ns
Pulse sequence
4 VEGAPULS 42, 44 and 45 – VBUS
Product description
VEGAPULS radar sensors can accomplish this through a special time transformation procedure which spreads out the more than
3.6 million echo images per second in a slow­motion picture, then freezes and processes them.
tt
Time transformation
Hence, it is possible for the VEGAPULS ra­dar sensors to process the slow-motion pictures of the sensor environment precisely and in detail in cycles of 0.5 to 1 second without using time-consuming frequency analysis (e.g. FMCW, required by other radar techniques).
Virtually all products can be measured
Radar signals are physically similar to visible light. According to the quantum theory they propagate through empty space and are therefore not dependent, like e.g. sound waves, on a conductive medium. And like all electromagnetic waves, they travel at the speed of light. The radar signals react to two primary electrical properties:
- the electrical conductivity of a substance.
- the dielectric constant of a substance.
All products which are electrically conductive or have a dielectric constant greater than ε
1.6 have sufficiently good reflection charac-
r
teristics for reliable radar measurement. (Note: air has a dielectric constant ε The signal reflection increases with the con-
of 1).
r
ductivity or with the dielectric constant of the product. Therefore virtually all products can be measured.
%
50 40 30 20 10
5 %
5
0
2
4 6 8 12 14 16 18
0
25 %
10
40 %
20
ε
r
Reflected radar power dependent on the dielectric constant of the measured product
With standard flanges between DN 50 and DN 150, ANSI 2" to ANSI 6" or G 1½ A and 1½" NPT the sensor antenna systems are adapted to the various products and meas­uring environments.
High quality materials withstand also extreme chemical and physical conditions. The sen­sors deliver reliable, precise and long-term stable, reproducible level signals.
Continuous and reliable
Unaffected by temperature, pressure and individual gas atmospheres, VEGAPULS radar sensors are used for quick and reliable continuous level measurement of various products.
%
0,03 0,02 0,01
0
100 500 1000 1300 ˚C
0
0,018 %
Temperature influence: Temperature error absolutely zero (e.g. at 500°C 0.018 %)
%
10
5
0,29 %
0
10
0
1,44 %
20 30 40 60
50
Pressure influence: Error with pressure increase very low (e.g. at 50 bar 1.44 %)
0,023 %
2,8 %
70 80 90 110 120 130 140
100
3,89 %
bar
VEGAPULS 42, 44 and 45 – VBUS 5
Product description

1.2 Application features

Applications
• Level measurement of all liquids.
• Measurement also in vacuum.
• All slightly conductive substances and all substances with a dielectric constant > 2.0 can be measured.
• Measuring range 0 … 10 m (type 42). Measuring range 0 … 20 m (type 44). Measuring range 0 … 4 m (type 45).
Two-wire technology
• Power supply and output signal on one two-wire cable (loop powered).
• VBUS output signal (VEGA-Bus).
Rugged and wear-free
• Non-contact.
• High resistance materials.
Exact and reliable
• Accuracy 0.05 %.
• Resolution 1 mm.
• Unaffected by noise, steam, dust, gas compositions and inert gas stratification.
• Unaffected by varying density and tem­perature of the medium.
• Measurements of pressures up to 40 bar and temperatures up to 150 °C.

1.3 Adjustment

Each measuring situation is unique. For that reason, every radar sensor needs some basic information on the application and the environment, e.g. which level means "empty" and which level "full". Beside this "empty and full adjustment", many other settings and adjustments are possible with VEGAPULS radar sensors.
Adjustment and parameter setting of the radar sensors is done with
- the PC and the adjustment program VVO
- the detachable adjustment module MINICOM
- the VEGAMET signal conditioning instru­ment
Adjustment with the PC
Setup and adjustment of the radar sensors is generally done on the PC with the adjustment program VEGA Visual Operating (VVO) under Windows graphics and process visualisation, the pro­gram leads you quickly through adjustment and parameterisation.
®.
By means of pictures,
Communicative
• Integrated display of measured values.
• Optional display separate from the sensor.
• Adjustment with detachable adjustment module which can be plugged into the sensor or into the external display.
• Adjustment with signal conditioning instru­ment.
• Adjustment with PC.
Approvals
The adjustment program recognises the sensor type
• CENELEC, ATEX, PTB, FM, CSA, ABS, LRS, GL, LR, FCC, RINA.
Visualised creation of a vessel linearisation curve
6 VEGAPULS 42, 44 and 45 – VBUS
Product description
Note:
The adjustment program VVO must be avail­able in version 2.70 or higher.
The PC can be connected to any position of the system or the signal cable. It is con­nected with the two-wire PC interface con­verter VEGACONNECT 2 to th e sensor, the signal cable or the signal conditioning instru­ment. The sensor is connected directly to the VEGALOG processing system with the standard cable (RS 232).
2
2
Adjustment with the PC on the digital signal and supply cable between sensors and VEGAMET signal conditioning instrument or directly on the sensor
2
1 ... 15
CPU
VEGALOG
VEGALOG
571 CPU
571 EA
Adjustment on the digital signal and supply cable to the VEGALOG 571 processing system or directly on the sensor
The adjustment and parameter setting data can be saved on the PC with the adjustment software and protected by passwords. The adjustments can be quickly transferred to other sensors if required.
2
......
CPU
2
1...15
VEGALOG
VEGALOG
571 CPU
571 EA
2
Adjustment with the PC on the VEGALOG processing system with standard cable RS 232 (up to 15 sensors can be operated on one two-wire cable with the processing system)
Adjustment with the PC on the VEGAMET signal conditioning instrument, to which one or two sensors can be connected
VEGAPULS 42, 44 and 45 – VBUS 7
Product description
Adjustment with adjustment module MINICOM
With the small (3.2 cm x 6.7 cm) 6-key ad­justment module with display you carry out the adjustment in clear text dialogue. For this purpose, the adjustment module can be plugged into the radar sensor or into the optional external indicating instrument.
Tank 1 m (d)
12.345
Detachable adjustment module MINICOM
Unauthorised sensor adjustments can be prevented by removing the adjustment mod­ule.
ESC
+
-
Tank 1
m (d)
OK
12.345
2
ESC
+
-
Tank 1
m (d)
OK
12.345
4
ESC
+
-
OK
%
100
+
-
OK
ESC
CONNECT
!
on
513
Adjustment with the VEGAMET signal conditioning instrument
The radar sensors with digital output signal can be adjusted, besides with the PC, also with the VEGAMET signal conditioning instru­ment.
%
100
+
-
OK
ESC
CONNECT
12
!
on
515V
6-key adjustment field on the instrument front of the VEGAMET signal conditioning instrument
For adjustment, the digital VEGAMET 514V and 515V signal conditioning instruments are provided with a 6-key adjustment field with display. Here you can carry out the param­eter setting in clear text dialogue. Using the 6-key adjustment field, it is also possible to adjust one or two connected sensors with the signal conditioning instrument. The adjustment scheme corresponds to that of the adjustment module MINICOM.
Adjustment with detachable adjustment module. The adjustment module can be plugged into the radar sensor or into the external indicating instrument VEGADIS 50.
8 VEGAPULS 42, 44 and 45 – VBUS
Types and versions

2 Types and versions

2.1 Overview

Series 40 sensors are manufactured in three basic versions, VEGAPULS 42, VEGAPULS 44 and VEGAPULS 45.
VEGAPULS 42 sensors are characterised by
1
G 1
/2 A or 11/2" NPT thread as process fitting. These sensors are equipped as standard versions with a ø 40 mm horn as antenna.
VEGAPULS 44 sensors are characterised by a DIN or ANSI flanges as process fitting. In standard version they are manufactured with DN 50, 80, 100 and 150 as well as with ANSI 2", 3", 4" and 6". The bigger flanges come equipped with respectively larger antenna horns (ø 48, 75 and 95 mm).
Generally: The bigger the antenna horn, the better the focusing characteristics, and the better the antenna gain. This ensures that even a weak product echo can be detected reliably as level echo.
VEGAPULS 45 sensors come completely equipped with a measuring tube of 4 m length. These sensors are used in applications where high accuracy is required or for liquids with very low dielectric constant such as e.g. liquid gas.
VEGAPULS 42
VEGAPULS 45 with thread G 1½ A or 1½" NPT
VEGAPULS 44
VEGAPULS 45 with flange
VEGAPULS 42, 44 and 45 – VBUS 9
Types and versions
Features
General features
• Measurement preferably of liquids in storage tanks or process vessels with increased accuracy requirement.
• Measuring range 0 … 4 m, 0 … 10 m or 0 … 20 m.
• Ex approved in Zone 1 (IEC) or Zone 1 (ATEX) classification mark EEx ia [ia] IIC T6.
• Integrated display of measured values.
Overview
PS42XXE… PS44XXE… PS45XXXE…
Signal output
- VBUS (VEGA-Bus)
Antenna
- horn antenna
- pipe antenna
1) 1)
Process fitting
- G 1½ A; 1½" NPT
- DN 50; ANSI 2"
- DN 80; ANSI 3"
- DN 100; ANSI 4"
- DN 150; ANSI 6"
Adjustment
-PC •••
- adjustment module in the sensor
- adjustment module in external indicating instrument
- with signal conditioning instrument
Measuring range 0 … 4 m
- ø 40 mm horn 0 … 10 m (depending on the
- ø 48 mm horn 0 … 15 m 0 … 15 m tube length)
- ø 75 mm horn 0 … 20 m 0 … 20 m
- ø 95 mm horn 0 … 20 m 0 … 20 m
1)
When mounting on a standpipe or bypass tube, a pipe antenna is created. The tube inner diameter should be between 40 mm and 80 mm.
10 VEGAPULS 42, 44 and 45 – VBUS
Types and versions

2.2 Type code

PS 42 .XX X X X XXX X X
K - Plastic housing PBT, M20 x 1.5 cable entry N - Plastic housing PBT, ½" NPT cable entry A - Aluminium housing, M20 x 1.5 cable entry D - Aluminium housing, ½" NPT cable entry in Exd connection
housing
V - Seal of the antenna system: Viton A - Seal of the antenna system: Kalrez
G - Process fitting G 1½ N - Process fitting 1½" NPT
A
ABC- Process fitting DN 50 PN 40 BBE- Pr ocess fitting DN 80 PN 40 CBG-Process fitting DN 100 PN 16 DBG-Process fitting DN 150 PN 16 ARC- Process fitting ANSI 2" 150 psi BRE- Pr ocess fitting ANSI 3" 150 psi CRG-Process fitting ANSI 4" 150 psi DRG-Process fitting ANSI 6" 150 psi YYY- Process fitting on request
X - without display A - with integrated display
X - without adjustment module MINICOM B - with adjustment module MINICOM (mounted)
B - 20 … 72 V DC; 20 … 250 V AC; 4 … 20 mA, HART
(four-wire)
D - Two-wire (loop powered), 4 … 20 mA, HART
®
®
E - Power supply via signal conditioning instrument G - Segment coupler for Profibus PA
XX - FTZ (standard telecommunication approval Germany) AX - Approval in Ex-Zone 1, EEx ia IIC T6 CX - Approval in Ex-Zone 0, EEx ia IIC T6 BX - Approval in Ex-Zone 1 (Exd connection housing) DX - Approval in Ex-Zone 0 (Exd connection housing)
Type 42: with screwed process fitting Type 44:Instrument series with flange connection Type 45: with measuring tube
PS: Radar sensors series 40
VEGAPULS 42, 44 and 45 – VBUS 11
Types and versions

2.3 Antennas

The antenna is the eye of the radar sensor. A casual observer would never guess how carefully the antenna geometry must be adapted to the physical properties of electro­magnetic fields. The geometrical form deter­mines focal properties and sensitivity - the same way it determines the sensitivity of a unidirectional microphone.
For various application purposes, measure­ment conditions and process requirements, series 40 sensors are available with three antenna forms as VEGAPULS 42, VEGAPULS 44 and VEGAPULS 45.
VEGAPULS 42 sensors are characterised by
1
G 1
/2 A or 11/2" NPT thread as process fitting. These sensors are equipped as standard versions with a ø 40 mm horn as antenna.
VEGAPULS 44 sensors are characterised by a DIN or ANSI flanges as process fitting. In standard version they are manufactured with DN 50, 80, 100 and 150 as well as with ANSI 2", 3", 4" and 6". The bigger flanges come equipped with respectively larger antenna horns (ø 48, 75 and 95 mm).
Generally: The bigger the antenna horn, the better the focusing characteristics, and the better the antenna gain. This ensures that even a weak product echo can be detected reliably as level echo.
VEGAPULS 45 sensors are characterised by integrated measuring tube. The measuring tube serves the radar signals as a waveguide in which no emitted energy is lost. The complete emitted energy is returned as reflection energy. Due to this, also products with very weak reflection characteristics,
such as light petrol, liquid gas with of 1.4 … 2.0 can be reliably detected.
ε
values
r
Viscous or adhesive products cannot be measured with VEGAPULS 45.
Horn antennas
Horn antennas focus the radar signals very well. Manufactured from 1.4435 (StSt) or Hastelloy C22, they are very rugged, and both physically and chemically resistant. They are suitable for pressures up to 40 bar and for medium tempera­tures up to 150°C. The horn
VEGAPULS 42
diameters determine the focusing of the radar sig­nals. The antenna gain in­creases with increasing horn diameter (40, 48, 75, 95 mm). The antenna gain represents the relation between transmitted energy and received echo energy.
VEGAPULS 44
12 VEGAPULS 42, 44 and 45 – VBUS
Types and versions
Pipe antennas
Pipe antennas composed of horn antenna and standpipe or bypass tube
Horn antennas on a stand­pipe or bypass tube form a complete antenna system in conjunction with a measuring pipe (which must not be perfectly straight, but can also have bends). For the radar signals, the measuring pipe acts as a conductor. The running time of the radar signal changes in the pipe and depends on the pipe diameter. The sensor must be therefore informed about the tube inner diameter so that the running time can be taken into account and precise level signals are delivered. Pipe antennas are best suited for turbulent applications and products with very low dielectric con­stant.
The antennas are characterised by a very high antenna gain. As a result, high reliability is achieved even with products having very poor reflection proper­ties.
VEGAPULS 42 pipe antenna composed of horn antenna and bypass tube
VEGAPULS 44 pipe antenna composed of horn antenna and bypass tube
VEGAPULS 45 with thread, pipe antenna inte­grated in the sensor
VEGAPULS 45 with flange, pipe antenna inte­grated in the sensor
Pipe antenna integrated in the sensor
VEGAPULS 45 series originated as a further development of VEGAPULS 42 and 44 sensors combined with a surge pipe or bypass tube. This sensor is equipped with an optimised measuring tube up to 4 m long and enables high precision level measurement also in products with very small dielectric figures of ε liquid gas).
VEGAPULS 42, 44 and 45 – VBUS 13
= 1,4 … 1,8 (e.g.
r

3 Mounting and installation

3.1 General installation instructions

Mounting and installation
Measuring range
The reference plane for the measuring range of the sensors is the flange face or the seal shoulder of the thread. For measurements in
Keep in mind that in measuring environments where the medium can reach the sensor flange, buildup can occur on the antenna and
can cause measurement errors. surge or bypass pipes with VEGAPULS 45 the max. measuring distance depends on the tube length.
Reference plane
max. filling
Measuring range (operating range) and max. measuring distance Note: Use of the sensors for applications with solids is limited.
full
empty
Meas. range
max. measuring distance 20 m (type 45: 4 m)
Note: The use of series 40 sensors for solids
is restricted.
max.
min.
Interfering reflections
Flat obstructions and struts cause large interfering reflections. They reflect the radar signal with high energy density. Rounded profile interfering surfaces scatter the radar signals in all directions and thus cause interfering reflections of lower energy density. Hence, they ar e less critical than reflections from a flat surface.
If flat obstructions in the range of the radar
signals cannot be avoided, we recommend
diverting the interfering signals with a deflec-
tor. Through scattering, the interfering signals
will be low in amplitude and so diffuse that
they can be filtered out by the sensor.
max.
max.
min.
Rounded profiles diffuse radar signals
Profiles with flat surfaces cause stronger interfering signals
A deflector causes signal scattering
14 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
Emission cone and interfering reflec­tions
The radar signals are focused by the an­tenna system. The signals leave the antenna in a conical path similar to the beam pattern of a spotlight. The form and intensity of the emission cone depend on the antenna used.
Any object in this beam cone causes a reflec­tion of the radar signals. Within the first few meters of the beam cone, tubes, struts or other installations can interfere with the meas­urement. At a distance of 6 m, the false echo of a strut has an amplitude nine times greater than at a distance of 18 m.
At greater distances, the energy of the radar signal distributes itself over a larger area, thus causing weaker echoes from obstruct­ing surfaces. The interfering signals are therefore less critical than those at close range.
If possible, orient the sensor axis perpen­dicularly to the product surface and avoid vessel installations within the 100 % area of the emission cone, e.g. tubes or struts.
The illustrations of the emission cones are simplified and represent only the main beam
- a number of weaker beams also exist. Un­der difficult measuring conditions, the align­ment of the antenna must be such that the lowest possible false echo values appear. Only giving attention to the size of the useful echo is not always adequate when measur­ing conditions are unfavourable.
Optimum measuring conditions exist when the emission cone reaches the measured product perpendicularly and when the emis­sion cone is free of obstructions.
0 m
Meas. distance
10 m
Emission cone of a VEGAPULS 42 with screw-on antenna and with ø 40 mm horn
Meas. distance
3,50 1,90 3,501,900
0 m
VEGAPULS 42
22˚
30˚
50%
18˚
25˚
25%
VEGAPULS 44 with ø 48 mm horn
m
In a difficult measurement environment, searching for a mounting location with the lowest possible false echo intensity will bring the best results. In most cases, the useful echo will then be present with sufficient strength. With the adjustment software VVO
25%
on the PC, you can have a look at the echo image and optimise the mounting location (see chapter "5.2 Adjustment with the PC – Sensor optimisation – Echo curve").
If possible, provide a "clear view" to the prod-
15 m
4,0 2,3 4,02,30
Emission cone of a DN 50 flange antenna
50%
m
uct inside the emission cone and avoid ves­sel installations in the first third of the emission cone.
VEGAPULS 42, 44 and 45 – VBUS 15
Mounting and installation
0 m
Meas. distance
20 m
3,0 1,7 3,01,70m
VEGAPULS 44 with ø 75 mm horn
10˚
20˚
50%
Emission cone of a DN 80 flange antenna
0 m
VEGAPULS 44 with ø 95 mm horn
25%

3.2 Measurement of liquids

Flange antennas
In most cases, the mounting of radar sensors
is done on short DIN socket pieces. The
lower side of the instrument flange is the
reference plane for the measuring range. The
antenna must always protrude out of the
flange tube.
When the DIN socket piece is longer, please
make sure that the horn antenna is not cov-
ered completely by the socket. It is better if
the antenna protrudes slightly out of the
socket.
Reference plane
< 135 mm (DN 50) < 210 mm (DN 80) < 310 mm (DN 100, DN 150)
Mounting on DIN socket piece
When mounting on dished vessel tops, the
antenna length should at least correspond to
the length of the longer sockets.
Vessel center or symmetry axis
Meas. distance
14˚
25%
<135…310mm (250…425mm with antenna extension)
Mounting on a dished vessel top; max. socket length
20 m
2,5 1,3 2,51,30
50%
m
depending on flange size and, if applicable, on the length of the antenna extension (see "7.3 Dimen­sions").
Emission cone of a DN 100 and DN 150 flange an­tenna
16 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
On dished tank ends, please do not mount the instrument in the centre or close to the vessel wall, but approx.
1
/2 vessel radius from
the centre or from the vessel wall.
Dished tank ends can act as paraboloidal reflectors. If the radar sensor is placed in the focal point of the parabolic tank, the radar sensor receives amplified false echoes. The radar sensor should be mounted outside the focal point. Parabolically amplified echoes can be thereby avoided.
Vessel center or symmetry axis
Reference plane
½ vessel radius
Mounting on dished tank ends
If the stability of the vessel will allow it (sensor weight), flat mounting directly on the vessel top is a good and economical solution. The top side of the vessel is the reference plane.
Screw-on antenna
The screw-on antenna is mainly used on small vessels. The antenna fits on small ves­sel openings down to 1 must not be longer than 135 mm (when using the longer antenna, not longer than 250 mm).
Screw-on antenna on socket piece 11/2"
Screw-on antenna with antenna extension on socket piece 1½"
1
/2" socket. The socket
Reference plane
135 mm
250 mm
As an alternative to socket mounting, the screw-on antenna can be screwed into the
Reference plane
Mounting directly on the flat vessel top
VEGAPULS 42, 44 and 45 – VBUS 17
hole in the vessel.
Rod antenna directly on vessel opening
Mounting and installation
3.3 Measurement in standpipe
(surge or bypass tube)
General instructions
Pipe antennas are preferred in vessels which contain many installations, e.g. heating tubes, heat exchangers or fast-running stirrers. Measurement is then possible where the product surface is very turbulent, and vessel installations cannot cause false echoes.
Through the focusing of the radar signals within the measuring tube, even products with low dielectric constant (ε be measured reliably in the surge or bypass tube. Note the following instructions.
Surge pipe welded to the tank
Type label
= 1.6 to 3) can
r
Surge pipe in the socket piece
maxmax
Make sure the required upper vent hole in
the surge pipe is aligned with the sensor
type label.
As an alternative to a surge pipe in the ves-
sel, a pipe antenna system outside the ves-
sel in a bypass tube is also possible.
The surge and bypass tubes must generally
be made of metal. For plastic tubes, a
closed, conductive jacket is always required.
For metal tubes with plastic inner coating,
make sure that the thickness of the coating is
minimal (approx. 2 … 4 mm).
Align the sensor such that the type label lies
on one axis with the tube holes or the tube
connection openings. The polarisation of the
radar signal enables a considerably more
stable measurement with this alignment.
Type label
> 300 mm
100 %
Vent hole ø 5 … 10 mm
0 %
Tube flange system as bypass tube
When mounting a VEGAPULS 42 or 44 sen-
sor on a bypass tube (e.g. on a previous
min
without deflector
Pipe antenna systems in the tank
with deflector
min
floating or displacer unit), the radar sensor
should be mounted at a distance of approx.
300 mm or more from the max. level.
The surge or bypass tubes open at the bot­tom should reach to the requested min. level, since a reliable measurement is only possible within the pipe. The tube inner diameter should be max. 100 mm and correspond with the size of the antenna horn.
18 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
> 300 mm
100 %
75 %
0 %
Extended bypass tube on a vessel with intense product movements
For products with small dielectric constants (< 4), a bypass tube longer than that re­quired by the lower tube connection should be used. Products with small dielectric con­stants are partly penetrated by the radar signals, so that the tube bottom delivers a stronger echo than the product (when the bypass tube is nearly empty). As a result of the extension of the lower tube end, sufficient liquid will remain even when the vessel is emptied.
With a liquid quantity of 300 … 800 mm in the blind lower end of the tube, the portion of the signal that penetrates the liquid and reflects from the tube bottom is sufficiently damped ­the sensor can then easily distinguish it from the echo of the liquid surface. If not enough liquid remains, a deflection plate located at the bottom of a vertical pipe can provide the same function. It deflects the signal reflected from the tube end sideways into the standard tube opening.
Connections to the bypass tube
The connections to the bypass tubes must be fashioned in such a way that only minimal reflections are caused by the walls of the connecting tubes. This is especially important for the breather connection in the upper part of the tube. Observe the following points:
• Use small openings for the connection.
• The diameter of the connecting tubes should not exceed 1/3 of the bypass diam­eter.
• The tube connections must not protrude into the bypass.
• Large welding beads in the tubes should be avoided.
• Additional connections to the bypass tube are more suitable if they lie on the same plane as the upper and lower vessel con­nection (superimposed or displaced by 180°).
Type label
> 300 mm
100 %
Optimum connection to the bypass tube
0 %
Bypass tube with tube stub
VEGAPULS 42, 44 and 45 – VBUS 19
300 ... 800 mm
Welding beads too large
Tube connection protrudes
Mounting and installation
Conducting tube
Conducting tube in existing surge or bypass tube
To increase the min. distance, the conducting tube can protrude out of the surge or bypass tube. For this purpose, a plain flange can be welded at the required position on the out­side of the extended conducting tube. In both cases, an adequate vent hole must be provided.
Additional connection to the bypass tube in one plane
Use of conducting tubes
(VEGAPULS 44)
In case of very rough inner surfaces in exist­ing bypass tubes (e.g. due to corrosion) or in case of big connection openings as well as bypass tubes with an inner diameter of more than 100 mm, the use of a conducting tube in the existing bypass tube is recommended. This reduces the noise level and increases reliability considerably. The flange of the conducting tube can be easily mounted as a sandwich flange between vessel and sensor flange.
20 VEGAPULS 42, 44 and 45 – VBUS
Extended conducting tube
Mounting and installation
Seals on tube connections and tube ex­tensions
Microwaves are very sensitive to gaps in flange connections. If connections are made without proper care, distinct false echoes as well as increased signal noise can result. Observe the following points:
• The seal used should correspond to the tube inner diameter.
• If possible, conductive seals such as con­ductive PTFE or graphite should be used, especially for thicker seals.
• Make sure that there are only a few seal positions on a conducting tube.
Flange connections on bypass tubes
Adhesive products
For slightly adhesive products, choose a surge pipe with e.g. a nominal width of 50 mm. VEGAPULS 42 and 44 radar sensors with 26 GHz technology are relatively insensi­tive to buildup in the tube. Nevertheless, buildup must not be allowed to plug up the tube completely.
For adhesive products, the use of a DN 80 to max. DN 100 stand/surge pipe can enable measurement in spite of buildup. Products that cause excessive buildup cannot be measured in a standpipe.
VEGAPULS 45 with integrated measur­ing tube
The sensor version VEGAPULS 45 is espe­cially developed for measuring tube applica­tions and is supplied complete with a 27 mm measuring tube. With a measuring tube length up to 4 m, this sensor version is suit­able e.g. for the use in existing standpipes.
max
min
VEGAPULS 45 with integrated measuring tube in a free vessel or in an existing bypass pipe
Note:
VEGAPULS 45 sensors with integrated measuring tube are equipped with a threaded process fitting or a flange connec­tion. For sensors with threaded process fitting, make sure that the complete sensor, i.e. also the sensor housing, turns when screwing in. The sensor housing is fastened with a clipped connection. This sensor hous­ing must not be turned with respect to the measuring tube or even loosened. Otherwise the radar signal coupling would be destroyed and the sensor would not function proberly.
VEGAPULS 42, 44 and 45 – VBUS 21
Mounting and installation
If you want to measure inhomogeneous prod­ucts or stratified products in a surge pipe, it must have holes, elongated holes or slots. These openings ensure that the liquid is mixed and corresponds to the liquid in the vessel.
The more inhomogeneous the measured product, the closer the openings should be spaced.
Due to radar signal polarisation, the holes or slots must be positioned in two rows offset by 180°. The radar sensor must then be mounted so that the type label of the sensor is aligned with the rows of holes.
VEGAPULS 45 with integrated measuring tube (surge pipe) measures between the heating spirals
Standpipe measurement of inhomoge­neous products
ø 5...15
homogeneous liquids
slightly inhomogeneous liquids
ø 5...15
Every wider slot causes a false echo. The slots should therefore not exceed a width of 10 mm, to keep the signal-to-noise ratio at a minimum. Round slot ends are better than rectangular ones.
Type label
ø 5...15
VEGAPULS 44: Rows of holes on one axis with the type label
inhomogeneous liquids
Openings in a surge pipe for mixing of inhomogene­ous products
22 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
Surge pipe with ball valve
If a ball valve is mounted in the surge pipe, maintenance and servicing can be carried out without opening the vessel (e.g. if it con­tains liquid gas or toxic products).
Ball valve
ø50
Tube antenna system with ball valve cutoff in measur­ing tube
A prerequisite for trouble-free operation is a ball valve throat that corresponds to the pipe diameter and provides a flush surface with the pipe inner wall. The valve must not have any rough edges or constrictions in its chan­nel and should have a min. distance of 300 mm from the sensor flange.
> 300 mm
Vent hole
Deflector
Guidelines for standpipe construction
Radar sensors for measurement on surge or bypass pipes are used with G 1½ A screwed-on antenna or flange sizes DN 50, DN 80, DN 100 and DN 150. The radar sensor with a DN 50 flange is only a functional measuring system in conjunction with a measuring tube.
On the left you see the constructional fea­tures of a measuring pipe (surge or bypass tube) as exemplified by a sensor with DN 50 flange.
The measuring pipe must be smooth inside (average surface quality Rz ≤ 30). Use stain- less steel tubing (drawn or welded length­wise) for construction of the measuring pipe. Extend the measuring pipe to the required length with welding neck flanges or with con­necting sleeves. Make sure that no shoulders or projections are created during welding. Before welding, join pipe and flange with their inner surfaces flush and exactly fitting.
Avoid welding through the pipe wall. The pipe must remain smooth inside. Roughness or welding beads on the inner surfaces must be carefully removed and burnished, as they cause false echoes and encourage product adhesion.
On the following page you will see the constructional features of a measuring pipe as exemplified by a sensor with DN 100 flange.
If the vessel contains agitated products, fasten the measuring pipe to the vessel bot­tom. Provide additional fastenings for longer measuring pipes.
VEGAPULS 42, 44 and 45 – VBUS 23
Mounting and installation
0 %
Flange DN 100
Deburr the holes
150…500
Connecting sleeve
Welding neck flanges
VEGAPULS 44
When measuring products with lower dielec­tric values (< 4), a part of the radar signal penetrates the medium. If the vessel is nearly empty, an echo is generated by the medium and the vessel bottom. In some cases, the vessel bottom generates a stronger signal echo than the product surface. With a deflec­tor on the measuring pipe end, the radar signals are scattered. In nearly empty ves­sels and products with low dielectric value, the medium then generates a stronger echo than the vessel bottom.
Thanks to the deflector, only the useful signal is received in a nearly empty vessel - the
Welding of the plain welded flange
100 %
ø 95
2
Welding of the connect­ing sleeves
5…10
correct measured value is thus transmitted and the 0 % level reliably detected.
Instead of a deflector, the standpipe or surge pipe can be equipped with a quadrant pipe at the end. This reflects the radar signals that penetrate the medium diffusely to the side and reduces strong echoes from the tube
0,0…0,4
3,6
Welding of the welding neck flange
3,6
1,5…2
0,0…0,4
end or vessel bottom.
0 %
Quadrant pipe on the bypass tube end
Deflector
0 %
ø 100,8
~45˚
Meas. pipe fastening
Vessel bottom
Quadrant pipe on the standpipe end
24 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation

3.4 False echoes

The mounting location of the radar sensor must be selected such that no installations or inflowing material cross the radar impulses. The following examples and instructions show the most frequent measuring problems and how to avoid them.
Vessel protrusions
Vessel forms with flat protrusions can, due to their strong false echoes, greatly effect the measurement. Shields above these flat pro­trusions scatter the false echoes and guaran­tee a reliable measurement.
Correct Wrong
Vessel protrusions (slope)
Intake pipes, i.e. for the mixing of materials ­with a flat surface directed towards the sen­sor - should be covered with a sloping shield that will scatter false echoes.
Vessel installations
Vessel installations such as, for example, a ladder, often cause false echoes. Make sure when planning your measuring location that the radar signals have free access to the measured product.
Correct Wrong
Ladder
Vessel installations
Ladder
Struts
Struts, like other vessel installations, can cause strong false echoes superimposed on the useful echoes. Small shields effectively hinder a direct false echo reflection. These false echoes are scattered and diffused in the area and are then filtered out as "echo noise" by the measuring electronics.
Correct Wrong
Correct Wrong
Struts
Vessel protrusions (intake pipe)
VEGAPULS 42, 44 and 45 – VBUS 25
Shields
Mounting and installation
Inflowing material
Do not mount the instrument in or above the filling stream. Ensure that you detect the product surface and not the inflowing mate­rial.
Correct
Inflowing material
Wrong
Buildup
If the sensor is mounted too close to the vessel wall, buildup and adhesions of the measured product to the vessel wall will cause false echoes. Position the sensor at a sufficient distance from the vessel wall. Please also note chapter "3.1 General instal­lation instructions".
Correct Wrong
Strong product movements
Strong turbulences in the vessel, e.g. caused by stirrers or strong chemical reactions, can seriously interfere with the measurement. A surge or bypass tube (figure) allows, pro­vided the product causes no buildup in the tube, a reliable measurement even with turbulences in the vessel.
Correct Wrong
100 %
75 %
0 %
Strong product movements
Buildup
26 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation

3.5 Installation mistakes

Socket piece too long
If the sensor is mounted in a socket exten­sion that is too long, false reflections are caused and measurement is hindered. Make sure that the horn antenna protrudes out of the socket piece.
Correct Unfavourable
Reference plane
Flange antenna: Correct and unfavourable socket length
Unfavour­able
Correct
Parabolic effects on dished or arched vessel tops
Round or parabolic tank tops act like a para­bolic mirror on the radar signals. If the radar sensor is placed at the focal point of such a parabolic tank top, the sensor receives am­plified false echoes. The optimum mounting position is generally in the range of half the vessel radius from the centre.
Correct
~ ½ vessel radius
Unfavourable
Unfavourable
< 135 mm (250 mm)
Screw-on antenna: Correct and unfavourable socket length
VEGAPULS 42, 44 and 45 – VBUS 27
Mounting on a vessel with parabolic tank top
Mounting and installation
Wrong orientation to the product
Weak measuring signals are caused if the sensor is not directly pointed at the product surface. Orient the sensor axis perpendicu­larly to the product surface to achieve reliable measuring results.
Correct Wrong
Ladder
Direct sensor vertically to the product surface
Ladder
Sensor too close to the vessel wall
If the radar sensor is mounted too close to the vessel wall, strong false echoes can be caused. Buildup, rivets, screws or weld joints superimpose their echoes onto the product or useful echo. Please ensure sufficient dis­tance from the sensor to the vessel wall.
Foam generation
Conductive foam is penetrated by the radar signals to different depths and generates a number of single (bubble) echoes. The sig­nals in the foam are also damped, like heat radiation that tries to penetrate styrofoam. Thick, dense, creamy foam, and especially conductive foam, on the product surface can cause incorrect measurements.
conductive foam
Liquid
In case of good reflection conditions (liquids
Foam generation
without vessel installations), we recommend selecting the sensor distance so that there is no vessel wall within the inner emission cone. For products in less favourable reflection environments, it is a good idea to also keep the outer emission cone free of interfering installations. Note chapter "3.1 General instal­lation instructions".
Take measures to avoid foam, measure in a bypass tube or use a different measuring technology, e.g. capacitive electrodes or hydrostatic pressure transmitters.
In many cases, VEGAPULS 54 radar sensors with 5.8 GHz operating frequency achieve considerably better and more reliable meas­uring results in foam applications than type 40 sensors with 26 GHz technology.
28 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
Installation mistakes in the standpipe
Pipe antenna without ventilation hole
Pipe antenna systems must be provided with a ventilation hole on the upper end of the surge pipe. The lack of a hole will cause false measurements.
Correct
Pipe antenna: The surge pipe open to the bottom must have a ventilation or equalisation hole on top
Wrong
Wrong polarisation direction
When measuring in a surge pipe, especially if there are holes or slots for mixing in the tube, it is important that the radar sensor is aligned with the rows of holes.
The two rows of holes (displaced by 180°) of the measuring tube must be in one plane with the polarisation direction of the radar signals. The polarisation direction is always in the same plane as the type label.
Correct
VEGAPULS 44 on the surge pipe: The sensor type plate must be aligned with the rows of holes.
Type label
Wrong
VEGAPULS 42, 44 and 45 – VBUS 29

4 Electrical connection

Electrical connection

4.1 Connection and connection cable

Safety information
As a rule, do all connecting work in the com­plete absence of line voltage. Always switch off the power supply before you carry out connecting work on the radar sensors. Pro­tect yourself and the instruments.
Qualified personnel
Instruments which are not operated with protective low voltage or DC voltage must only be connected by qualified personnel.
Connection and grounding
A standard two or four-wire cable (sensors with separate supply) with max. 2.5 mm be used for connection. The earth conductor terminal is galvanically connected with the process fitting (thread or flange).
Ex protection
If an instrument is used in hazardous areas, the respective regulations, conformity certifi­cates and type approvals for systems in Ex areas must be noted (e.g. DIN 0165).
2
can
Note!
In Ex applications, grounding on both ends is not allowed due to potential transfer. If an instrument is used in hazardous areas, the respective regulations, conformity certificates and type approvals for systems in Ex areas must be noted (e.g. DIN 0165).
Note the approval documents and the in­cluded safety data sheet attached to the Ex sensors.
Connection cable
Please note that the connection cables are specified for the expected operating conditions in your systems. The cable must have an outer diameter of 5 … 9 mm (1/2 to 1/3 inch). Other­wise the seal effect of the cable entry will not be ensured.
Cables for intrinsically safe circuits must be marked blue and must not be used for other circuits.
Intrinsically safe circuits with more than one active instrument (instrument delivering elec­trical energy) are not allowed. Please note the special installation regulations (DIN 0165).
30 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection
Screening of the sensor cable
currents flow through the cable screening. Ground equalisation currents can be avoided
Very often, the "electromagnetic pollution" caused by electronic actuators, energy cables and transmitting stations is so considerable that the sensor cable must be screened.
by ground potential equalisation systems. When earthing on both ends, it is possible to connect the cable shield on one earth side (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V) to the earth potential. Use a very low-resistance earth connection
We recommend the use of screening to avoid
(foundation, plate or mains earth).
future interferences. However, you must make sure that no ground equalisation
Screening magnetic low-frequency high-frequency ground currents
fields electrical electrical and superimposed
fields fields potential currents
l < ––
λ
7
l > ––
λ
7
none – one side ++
two sides + + ++ ++
++ good protection against electromagnetic pollution + protection against electromagnetic pollution – no protection against electromagnetic pollution
Note: λ (Lambda) =– – –
c
f
l cable length c light velocity (300000 km/s) f interfering frequency λ wavelength
Example: Interfering frequency approx. 100 kHz
m
1c 13 10
l < – • – = – • ––––––––– = 4285 m
7 f 7 100 • 10
9
– s
1
3
– s
This means that interference can be avoided by earthing on both ends (better on one end) in case of an interfering frequency of 100 kHz up to a cable length of approx. 4000 m.
Earthing on the sensor end
Earthing on both ends (on the signal conditioning instrument via the potential separation capacitor)
e.g. 10 nF, 1500 V AC
VEGAMET
515V
VEGAPULS 42, 44 and 45 – VBUS 31
VEGAMET
515V
Electrical connection
Linear (serial) arrangement of sensors
Grounding of the cable screen on both ends, at the end of each sensor arry via a ground ca­pacitor.
CPU
VEGALOG
VEGALOG
VEGALOG
VEGALOG
571 CPU
571 EV
571 EV
571 EV
2
2
Radial arrangement of sensors
Grounding on at least two ends, on VEGALOG and once on the sensor star, i.e. on the longest sensor line. If the individual sensor lines are longer than approx. 15 m, a grounding of each longer line should be made via a ground capacitor.
CPU
VEGALOG
VEGALOG
VEGALOG
VEGALOG
571 CPU
571 EV
571 EV
571 EV
2
4
2
2
2
4
2
2
32 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection

4.2 Connection of the sensor

After mounting the sensor at the measure­ment location according to the instructions in chapter "3 Mounting and installation", loosen the closing screw on top of the sensor. The sensor lid with the optional indication display can then be opened. Unscrew the sleeve nut and slip it over the connection cable (after removing about 10 cm of insulation). The sleeve nut of the cable entry has a self-lock­ing ratchet that prevents it from opening on its own.
Version with plastic housing
Power supply and BUS signal
+-
To the indicating instrument in the sensor lid or the external VEGADIS 50 indicating instrument
Terminals (max. 2.5 mm wire cross-section)
2
Now insert the cable through the cable entry into the sensor. Screw the sleeve nut back onto the cable entry and clamp the stripped wires of the cable into the proper terminal positions.
The spring terminals hold the wire without a screw. Press the white opening tabs with a small screwdriver and insert the copper core of the connection cable into the terminal opening. Check the hold of the individual wires in the terminals by lightly pulling on them.
Version with Aluminium housing
Power supply and BUS signal
+
To the indicating instrument in the
-
sensor lid or the external VEGADIS 50 indicating instrument
M20 x 1.5 (diameter of the connection cable 5…9 mm)
-+
2
1
VBUS
Tank 1 m (d)
12.345
Communication
5678
Display
2.23273
ESC
+
-
OK
+ 1
VBUS
2 -
Tank 1 m (d)
12.345
Communication
5678
Display
2.23273
ESC
+
-
OK
VEGAPULS 42, 44 and 45 – VBUS 33
Electrical connection

4.3 Connection of the external indicating instrument VEGADIS 50

OUTPUT (to the sensor)
SENSOR
DISPLAY
(in the cover of the indicat­ing instrument)
DISPLAY1234 56 78
Loosen the four screws of the housing cover on VEGADIS 50. The connection procedure can be facilitated by fixing the housing cover during connec­tion work with one or two screws on the right of the housing.
Power supply and BUS signal
+
-
1
Communication
(+) L12N
Tank 1 m (d)
12.345
VEGADIS 50
Adjustment module
ESC
+
-
Tank 1 m (d)
12.345
5678
Display
2.23274
ESC
+
-
OK
OK
Screws
34 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection

4.4 Configuration of measuring systems

A measuring system consists of one sensor and one processing unit. The processing unit (VEGAMET signal conditioning instrument or VEGALOG processing system) evaluates the level-proportional, digital measuring signals in a number of processing routines and out­puts the levels as individual current, voltage or switching signals.
Two sensors can be connected via one two­wire cable to VEGAMET signal conditioning instrument. Up to 255 sensors can be con­nected to the VEGALOG 571 processing system. 15 sensors (loop powered) can be connected on one two-wire cable.
Beside the output of the level in percent, cubic meter or other physical units, as cur­rent, voltage or switching signal (relay or transistor), the levels can also be processed by linked processing algorithms. Scaling, linearisation, calculation of linearisation curves, differential generation, addition or tendency processing are an integral part of the VEGALOG processing systems and VEGAMET and are easy to implement via the menu selection.
Ex
Series 40 sensors with VBUS signal require for operation in Ex areas the Ex separator VEGATRENN 548V Ex, providing intrinsically safe Ex circuits to the sensors. Up to nine sensors (in groups of three sensors) can be connected to the Ex separator VEGATRENN 548V Ex.
Connection cable
Sensor wiring should be looped in screened cables. Ground the cable screens on the processing system, or better, on the sensor. We recommend grounding the cable screens on both ends. However, make sure that no earth compensation currents flow via the screens. When earthing on both ends, it is possible to connect the cable shield on one earth side (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V).
On the following page you will see the various instrument configurations (measuring sys­tems) consisting of sensor(s) and process­ing unit.
VEGAPULS 42, 44 and 45 – VBUS 35
Electrical connection
1 … 2 sensors on the VEGAMET 515V signal conditioning instrument
• Two-wire technology, power supply from the signal conditioning instrument, output signals and power supply via one two-wire cable.
• Digital output signal, two sensors on one cable.
• Display of measured value in the sensor and in the signal conditioning instrument.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor in Ex area).
• Adjustment with PC, signal conditioning instrument or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable 15 per wire, max. 1000 m cable length.
VEGADIS 50
4
4
1)
Sensor wiring should be looped in screened cables.
2
VEGACONNECT 2
In case of high frequency interference (> 1 MHz), it is best to ground the cable screens on both ends. Please make sure that no earth compensation currents flow via the screens. You avoid earth compensation currents (when grounding at both ends) by connecting the cable screen on one end (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V) with the ground potential.
In case of electromagnetic interfer­ences, screened cable should be used (see following page)
2
Processings see also Product Information "Signal conditioning instruments series 500"
Current outputs
2
VEGAMET
515V
VEGAMET 515V signal condition­ing instrument in housing type 505
Voltage outputs
Relays
Digital wiring
Fault signals
36 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection
1 … 2 sensors in Ex environment via separator VEGATRENN
"ia"
548V Ex on the VEGAMET 515V signal conditioning instrument
• Two-wire technology, power supply via separator, output signals and power supply via one two-wire cable.
• Ex environment acc. to CENELEC and ATEX.
• Digital output signal, two sensors on one cable.
• Display of measured values in the sensor and in the signal conditioning instrument.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor also in Ex area).
• Adjustment with PC, signal conditioning instrument or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable 15 per wire, max. 1000 m cable length (see also ap­proval certificates of the separators).
VEGADIS 50
4
Zone 0 or Zone 1
4
Zone 0 or Zone 1
1)
Sensor wiring should be looped in screened cables.
Ex area Non-Ex area
EEx ia
2
In case of high frequency interference (> 1 MHz), it is best to ground the cable screens on both ends. Please make sure that no earth compensation currents flow via the screens. You avoid earth compensation currents (when grounding at both ends) by connecting the cable screen on one end (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V) with the ground potential.
In case of electromagnetic interferences, screened cable should be used (see following
VEGAMET
page)
Processings see also Product Information "Signal conditioning instruments series 500"
VEGATRENN
548V
515V
2
2
VEGA­CONNECT 2
VEGAMET 515V signal conditioning instru­ment with Ex separator VEGATRENN 548V Ex in housing type 506
Note!
In Ex systems, earthing on both ends is not allowed due to potential difference. It is al­lowed, however in conjunction with potential equalisation system or y
capacitors.
c
Current outputs
Voltage outputs
Relays
Digital wiring
Fault signals
VEGAPULS 42, 44 and 45 – VBUS 37
Electrical connection
5 sensors per two-wire cable (grouped radially) on the VEGALOG 571 processing system
• 15 sensors with power supply and digital output signals via three two-wire cables on one input card of the VEGALOG 571 processing system.
• Display of measured values integrated in the sensor.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor in Ex area).
• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable 15 per wire, max. 1000 m cable length.
2
2
4
2
2
4
2
4
CPU
VEGALOG
VEGALOG
VEGALOG
VEGALOG
571 CPU
571 EV
571 EV
571 EV
2
2
38 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection
5 sensors per two- wire cable (grouped in line) on the VEGALOG 571 processing system
• 15 sensors with power supply and digital output signals via three two-wire cables on one input card of the VEGALOG 571 processing system.
• Display of measured values integrated in the sensor.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor also in Ex area).
• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable 15 per wire, max. 1000 m cable length.
2
2
2
CPU
VEGALOG
VEGALOG
571 CPU
571 EV
2
VEGAPULS 42, 44 and 45 – VBUS 39
Electrical connection
15 sensors via one two-wire cable on the VEGALOG 571 processing system
• 15 sensors with power supply and digital output signals via one two-wire cable on one input card of the VEGALOG 571 processing system.
• Display of measured values integrated in the sensor.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor also in Ex area).
• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable with 15 sensors on one two-wire cable 10 per wire (instead of 15 Ω), max. 1000 m cable length.
VEGADIS 50
4
VEGADIS 50
4
VEGADIS 50
4
Screened cable in case of electromag­netic interferences
2
2
2
1)
Processings see also Product Information "Signal conditio­ning instruments series 500"
Current outputs
2
CPU
Voltage output
Relay outputs
Transistor output
Fault signals
Display outputs
Digital wiring Connection to all bus systems
2
2
VEGA­CONNECT 2
2
VEGALOG
VEGALOG
571 CPU
571 EV
VEGALOG 571 processing system with input cards in 19" rack. 15 sensors on one module card and cable
Interface cable RS 232
1)
Sensor wiring should be looped in screened cables. Please make sure that no earth compensation currents flow via the screens. You avoid earth compensation currents (when grounding at both ends) by connecting the cable screen on one end (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V) with the ground potential.
15 sensors per two-wire cable individual grouping
40 VEGAPULS 42, 44 and 45 – VBUS
Electrical connection
5 sensors per two-wire cable via VEGATRENN 548V Ex separator
"ia"
on the VEGALOG 571 processing system
• 5 sensors with power supply and digital output signals via one two-wire cable on the sepa­rator.
• Display of measured values integrated in the sensor.
• Optional external indicating instrument (can be mounted up to 25 m away from the sensor also in Ex area).
• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or into the external indicating instrument VEGADIS 50).
• Max. resistance of the signal cable 15 per wire, max. 1000 m cable length (see also ap­proval certificates of the separators and technical data).
VEGADIS 50
2
Ex area
EEx ia
Non-Ex area
EEx ia
2
2
Screened cable in case of electromagnetic interferences
CPU
1)
2 2 2
2 2 2
2 2 2
Processings see also Product Information "Signal conditioning instruments series 500". Current outputs etc. like image on previous page
2
2
2
VEGALOG
VEGALOG
VEGATRENN
571 CPU
571 EV
548
VEGALOG 571 processing system (19" module card)
VEGATRENN
VEGATRENN
VEGALOG
VEGATRENN
VEGATRENN
571 EV
548
548
548
548
Input card of VEGALOG 571
VEGATRENN 548V Ex separator (max. 15 sensors per card)
Input card of VEGALOG 571 (max. 15 sensors per card)
VEGACONNECT 2
2
2
1)
Sensor wiring should be looped in screened cables. In case of high frequency
Interface cable RS 232
interference (> 1 MHz) it is best to ground the cable screens on both ends. Please make sure that no earth compensation currents flow via the screens. You avoid earth compensation currents (when grounding at both ends) by connecting the cable screen on one end (e.g. in the switching cabinet) via a capacitor (e.g. 10 nF; 1500 V) with the ground potential. Sensor cables leading to the same separator card can be looped together in one screened
5 sensors per two-wire cable individual grouping
multiwire cable. Sensor cables leading to other separator cards must be looped in separate screened cables.
VEGAPULS 42, 44 and 45 – VBUS 41

5 Setup

Setup

5.1 Adjustment structure

The radar sensors can be operated
- with the PC (adjustment program VVO,
version 2.70)
- with the adjustment module MINICOM
- with the VEGAMET signal conditioning instrument.
The adjustment is always possible with one adjustment instrument at once.
Adjustment with the PC
The PC with the adjustment program VVO (VEGA Visual Operating) in version 2.70 can be connected to:
- the sensor
- the signal cable
- the VEGAMET 514V, 515V signal condition­ing instrument
- the VEGALOG 571 processing system.
With the adjustment program VVO on the PC, you can adjust the radar sensors very easily. A digital adjustment signal is herewith superimposed to the signal and supply cable. By this means, the adjustment can be made directly on the sensor, on any position of the signal cable or on the VEGAMET or VEGALOG processing system.
Note:
Make sure that for adjustment of VEGAPULS 42, 44 and 45 sensors, the adjustment pro­gram VVO in version 2.70 or higher is installed.
PC directly on the sensor
Insert VEGACONNECT into the communica­tion sockets of an individual sensor. Only sensor-relevant adjustment options such as e.g., sensor optimisation on the affected sensor, are adjustable. Other sensors and VEGAMET are then not adjustable. This is due to an adjustment hierarchy beginning with VEGAMET or VEGALOG and ending with the sensor.
PC on the signal cable
Only the sensor-relevant adjustment options of sensors connected to the signal cable are adjustable on the signal cable. However, not available are the configuration and measured data processing functions of VEGAMET or VEGALOG.
Note:
The adjustment with the "PC on the signal cable" and with the "PC directly on the sen­sor" is described in chapter "5.2 Adjustment with the PC on the signal conditioning instru­ment". For this reason, adjustment with the PC when connected directly to the sensor or the signal cable is not shown separately.
Adjustment with the PC on the VEGAMET signal conditioning instrument or on the VEGALOG processing system
The PC communicates via the interface con­verter VEGACONNECT 2 with the signal conditioning instrument or via the standard RS 232 interface cable with the VEGALOG processing system and all sensors con­nected to VEGAMET or VEGALOG. If you connect the PC to the processing system or the signal conditioning instrument, besides the connected sensors, also the processing system or the signal conditioning instrument is adjustable.
Adjustment with the VEGAMET signal conditioning instrument
Sensor and VEGAMET signal conditioning instrument can be operated with the 6 key adjustment field of the signal conditioning instrument just like with the adjustment pro­gram VVO. The scope of the adjustment functions is the same as with VVO on the PC.
42 VEGAPULS 42, 44 and 45 – VBUS
Setup
Adjustment with the adjustment module MINICOM
With the adjustment module MINICOM you adjust the individual sensor directly in the sensor or in the external indicating instrument VEGADIS 50. The adjustment module MINICOM with the 6 key adjustment field with text display enables the parameter adjust­ment of the sensor with an array of functions comparable to the adjustment program VVO or the VEGAMET signal conditioning instru­ment, but not the configuration of the measur­ing system.
Adjustment of the signal conditioning instru­ment is only possible with the adjustment program VVO or the 6 key adjustment field on the instrument itself.

5.2 Adjustment with the PC on the signal conditioning instrument

To connect the PC to the signal conditioning instrument, the interface converter VEGACONNECT is required. The PC com­municates via the interface converter with the signal conditioning instrument and the con­nected sensors.
In the following setup and adjustment instruc­tions you will find information on the following topics and adjustment points:
Configuration
- create/modify measurement loop
- configuration info
Parameter adjustment 1
- adjustment
- conditioning/scaling
- meas. loop data
Sensor optimisation
- meas. environment/operating range
- meas. environment/meas. conditioning
- meas. environment/pulse velocity
- echo curve
- false echo storage
Parameter adjustment 2
- user-programmable linearisation curve
- linearisation curve
- defining the linearisation curve by incre­mental filling
- calculating the linearisation curve
- calculate cylindrical tank
Outputs
- configuration outputs
- parameter adjustment outputs
Display of measured value
Simulation
Backup
(optional)
Note:
Keep in mind that you first have to log in a sensor in the configuration menu before you can continue with the parameter setting and, if necessary, carry out adjustments in the menu "
Sensor optimisation
VEGAPULS 42, 44 and 45 – VBUS 43
".
Adjustment with the PC on the signal conditioning instrument
Beside the measured values, adjustment signals are also transmitted digitally via the signal and supply cable between sensor and VEGAMET. The adjustment program VVO can then communicate with VEGAMET and all connected sensors. In chapter "4.4 Configu­ration of measuring systems", connection of the PC to different sensor arrangements is shown.
Before starting setup:
Do not be confused by the many pictures, adjustment steps and menus on the following pages. Just carry out the setup with the PC step by step and you will soon no longer need the following instructions. Actions, like entering a value or making a choice, are indicated in the following by a large black dot, like this:
• Choose …
• Start …
• Click to …
• Connect the standard output of your PC by the standard RS 232 interlink cable to VEGALOG.
• Now switch on the power supply of the processing system.
By this convention, the actions to be carried out are clearly separated from supplemen­tary information in the following adjustment instructions.
Start now:
• Connect the standard plug of VEGACONNECT 2 (9-pole) to the interface COM 1 or COM 2 of your PC.
• Insert the two small pin plugs of VEGACONNECT 2 into the CONNECT socket on the front of the signal condition­ing instrument.
• Now switch on the power supply of the signal conditioning instrument.
Usually after approx. 1 … 2 minutes (self­test) the measuring system is operating and displaying the measured value.
• Now start the adjustment software VVO on your PC.
• Choose with the arrow keys or the mouse the item "
Planning
" and click to "OK".
You are asked for user identification.
• Enter under name "VEGA".
• Also enter "VEGA" under password.
You are asked for the kind of sensor connec­tion or if you want to carry out a virtual adjustment.
• Choose "
Direct cable connection
", if your PC is directly connected to the VEGAMET via a VEGACONNECT.
44 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on the signal conditioning instrument
The adjustment program VEGA Visual Oper­ating (VVO), called in the following VVO, gets into contact with the connected sensor or processing system …
• Click to "OK" and you are in the main menu window.
… and indicates after a few seconds if and with which system a connection exists.
Note:
If you make no connection with the sensor, check the following:
- Is the sensor being supplied with sufficient
voltage (min. 20 V)?
- Did you inadvertently use a VEGACONNECT instead of the new VEGACONNECT 2?
User identification
The preset user identification can be modified later in the menu "
User access
".
If the adjustment software VVO gets in con­tact with the signal conditioning instrument for the first time, you will be asked if you want to transfer the data from the signal conditioning instrument to the PC.
• Click to "
In the following menu window "
choice
Yes
".
DISBUS-group
" you can give a name to the database
or keep the proposed file name.
VEGAPULS 42, 44 and 45 – VBUS 45
Adjustment with the PC on the signal conditioning instrument
Change COM port
In the menu "
nication
Configuration/Program/Commu-
" you can set the interface parameters
of your PC or change the used COM port.
Configuration
During the setup of the measuring system you are confronted with two terms: "Configu­ration" and "Parameter adjustment". The meas. system is first set up with a configura­tion and then with a parameter adjustment.
Note:
The signal conditioning instruments are shipped with the sensor configuration you ordered with the signal conditioning instru­ment.
Generally, you will use a preconfigured signal conditioning instrument. In the following menu "
Configuration
ments necessary and you can continue di­rectly with the menu " If your signal conditioning instruments are not preconfigured, start now with the section "
Configuration
adjustments in section "
ment
".
", there are normally no adjust-
Parameter adjustment
" and then continue with the
Parameter adjust-
".
No matter whether you set up a measuring system (consisting of sensor and VEGAMET signal conditioning instrument or VEGALOG processing system) with the adjustment software VVO or with the signal conditioning instrument, the adjustment procedure is always the same:
- first of all in the menu "
Configuration
", you
create a measurement loop
- then configure a measurement loop
- in the menu "
Instrument data
" you carry out
the parameter adjustment of the sensor.
Configuration
The term "Configuration" means the basic adjustments of VEGAMET. You inform VEGAMET about the application (level meas­urement, gauge, distance …), the measure­ment loop name and the input channel. The configuration represents an electronic wiring and labelling of your VEGAMET or, in other words, telling the system which sensor for what application and where.
Parameter adjustment
After the configuration, you carry out the parameter adjustment for each individual sensor. This means adjusting the sensors to the respective operating range and adapting them to the specific application. You infor m the sensor which product distance (which level) is "empty" and which "full". This is called adjustment. Here you choose which physical quantity (volume, mass) and unit of measurement (m
3
, gal, liters …) the adjusted measured value should be outputted in. In the submenu "Sensor optimisation", you inform the sensor electronics about the actual environment, such as e.g. quick changes of the measured value, foam generation, gas stratification, solid or liquid.
46 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on the signal conditioning instrument
Create new measurement loop
• Choose the menu "Configuration/Measure-
ment loop/New" and you are in the menu
window "
Application
Create new measurement loop -
".
• Choose one of the two inputs of the VEGAMET signal conditioning instrument (VEGAMET 514V has only one sensor input) and click to "OK".
• Choose the parameter (
ment"
, gauge or distance) and the sensor
type (
"Radar"
• Click to "
for radar).
Continue
".
"level measure-
After a few seconds, the menu window "
Cre­ate new measurement loop - Sensor configu­ration
" opens.
• Click in the menu window "
measurement loop - Sensor configuration
to "
Sensor coordination
"
Sensor coordination
• Click to "
• Then click to "
Sensor search
Input
Create new
"
". The menu window
" opens.
".
".
• Choose " "
• Click to " "
loop
VEGAPULS 42, 44 and 45 – VBUS 47
Standard level measurement
no options
".
Continue
" and the menu window
New application - Select measurement
" opens.
" and
• Choose the serial number of the sensor to which you want to allocate e.g. input 1. If two radar sensors are connected to VEGAMET, you will get here a choice of the serial numbers of the two sensors.
Adjustment with the PC on the signal conditioning instrument
• Confirm with "OK".
• Click in the menu window "
nation
" again to "OK".
You are again in the menu window "
Sensor coordi-
Create new measurement loop - Sensor configura­tion
".
• Click to "
Continue
"…
• Enter in the menu window "
Create new measurement loop - Measurement loop description
and a measurement loop description.
In this menu window you can select how your level signal will be outputted, e.g. as current, voltage, relay signal, etc. This "Configuration" of outputs is described in detail in chapter "Parameter adjustment 2" under "Outputs".
• Confirm with "OK" and the previous menu window appears again. Click again to "OK" and wait a moment until the settings are transferred.
Configuration information
In the menu "
tem
" - "
configuration.
" a measurement loop number
Configuration/Measuring sys-
Sensor survey
" you can check the
• Click in the menu window "
Create new measurement loop - Measurement loop description
48 VEGAPULS 42, 44 and 45 – VBUS
" to "
Level
".
Adjustment with the PC on the signal conditioning instrument
Parameter adjustment 1
In the menu "
justment
adjustments.
Adjustment
• Choose the menu "
meter adjustment
want to adjust.
If you have only configured one sensor on the signal conditioning instrument, you will of course have a choice of only one sensor.
Instrument data/Parameter ad-
" you carry out all important sensor
Instrument data/Para-
" and then the sensor you
You can carry out the min./max. adjustment
"with medium"
actual level) or taking the actual level into consideration, i.e. with empty vessel).
Generally, you will carr y out the adjustment without medium, inasmuch as you need not be concerned about the actual vessel filling during adjustment. If you want to carry out the adjustment with medium, you have to carry out the min. adjustment with emptied (also partly emptied) vessel and the max. adjustment with filled (also partly filled) ves­sel. Carrying out the adjustment without me­dium is more convenient and quicker, as shown in the example.
• Choose "
• Choose if you want the carry out the ad­justment in
• Enter a distance for the upper and lower level and the volume in % corresponding to each distance.
(adjustment by means of the
"without medium"
no (adjustment without medium)
meters
(m) or in
(without
feet
(ft).
".
In the opening menu window, you now see the previously entered measurement loop names and the measurement loop descrip­tions.
• First choose "Adjustment".
• Click in the menu window "
"
Min/Max adjustment".
VEGAPULS 42, 44 and 45 – VBUS 49
Adjustment
" to
Adjustment with the PC on the signal conditioning instrument
In the example, the 0 % filling is at a product distance of 5.85 m and the 100 % filling at a product distance of 1.27 m.
Note:
The sensor can only detect levels within the defined operating range. To enable detection of levels outside the operating range, it is necessary to correct the operating range in the menu "
ment
• Confirm your adjustments with "OK" and you are again in the menu window "
ment
• Click in the menu window " "
You are again in the menu window "
ment data parameter adjustment
Sensor optimisation/Meas. environ-
".
".
Quit
".
Adjust-
Adjustment
Instru-
".
" to
Of course, the characteristics points do not have to be at 0 % and 100 %, however the distance should be as great as possible (e.g. at 20 % and at 80 %). The difference between the characteristics points for the min./max. adjustment should be at least 50 mm product distance. This is a theoretical value, because if the characteristics points are too close together, the likelihood of meas­uring error increases. Ideal would be to carry out the adjustment as shown in the example, at 0 % and at 100 %.
In the menu "
justment/Conditioning/Linearisation
enter later, if necessary, a correlation be­tween product distance and percent value of volume other than linear (see later subitem "Linearisation”).
Scaling
• Click in the menu window "
parameter adjustment
The menu window "
Instrument data/Parameter ad-
" you can
Instrument data
" to "
Conditioning
Conditioning
" opens.
".
• Click to "
In the menu " 0 % and 100 % values of the parameter and their unit. You thereby inform the sensor, e.g. that at 0 % filling there are still 45 liters and at
Now, the sensor electronics has two charac­teristics points, one for min. and one for max., with which a linear correlation between prod­uct distance and percentage filling of a ves­sel can be generated.
50 VEGAPULS 42, 44 and 45 – VBUS
100 % filling 1200 liters in the vessel. The sensor display then shows with empty vessel (0 %) 45 liters and with full vessel (100 %) 1200 liters.
Scaling
Scaling
".
" you enter the actual
Adjustment with the PC on the signal conditioning instrument
Measurement loop data
As parameter you can choose
less
(plain numbers),
and distance"
measuring unit (e.g. l, hl). The sensor display then shows the measured value in the se­lected parameter and unit.
• Save the adjustments in the menu " by clicking "OK".
The adjustments are now transferred to the sensor and you are again in the menu win­dow "
Conditioning
and assign an appropriate
volume, mass, height
".
"dimension-
Scaling
• Click to the menu item "
Parameter adjustment
You are then in the entrance window "
ment data parameter adjustment
"
• Click to the menu item "
Here you get information on the application, the sensor type and the signal conditioning instrument.
Instrument data/
".
".
Meas. loop data
Instru-
".
VEGAPULS 42, 44 and 45 – VBUS 51
Adjustment with the PC on the signal conditioning instrument
• Click to " " your measuring system in the information windows.
• Quit the information windows.
• Quit the menu "
Application
VEGAMET
", to "
Input no. A
", to get detailed information on
Meas. loop data
" and
".
Sensor optimisation
In the menu "Sensor optimisation" you can adapt the sensor to the environment. Here you carry out special optimising adjustments and optimise, e.g. by means of the echo curve, the mounting location of the sensor.
• First click to "Meas. environment".
Meas. environment/Operating range
• Choose the menu "
eter adjustment
• Choose in the menu window "
data parameter adjustment
"
Sensor optimisation" and click to "
A
".
52 VEGAPULS 42, 44 and 45 – VBUS
Instrument data param-
"
Instrument
" the menu item
Sensor
The menu window "Meas. environment” opens.
With the menu item " can define the operating range of the sensor deviating from the " default, the operating range corresponds otherwise to the min./max. adjustment (span).
Operating range
" you
Min/Max adjustment
". By
Adjustment with the PC on the signal conditioning instrument
Generally, it is better to set the operating range approx. 5 % greater than the adjusted measuring range (span) determined by the min./max. adjustment. In the example:
- Min. adjustment to 1.00 m,
- Max. adjustment to 6.00 m..
• For example, enter "
6.0m
".
• Save the adjustments and quit the menu window "
• Click to "Measuring conditions".
• In the menu window " you click on the options corresponding to your application.
• Confirm with "OK".
After a few seconds during which the adjust­ments are permanently saved in the sensor, you are again in the window "
ment
Limitation of the operating range
".
From 1.0m Up to
Measuring conditions
Meas. environ-
After a few seconds during which the adjust­ments are permanently saved in the sensor, you are again in the window "
ment
".
Meas. environment/Pulse velocity
In the menu item " have to make settings if you measure with a VEGAPULS 42 or 44 in a surge or bypass tube (standpipe). When measuring in a standpipe, you will have a running time shift of the radar signal which is dependent on the inner diameter of the standpipe. VEGAPULS 45 is already suitably configured. To accommodate this running time shift, it is necessary to inform the sensor in this menu on the tube diameter (inner) of the standpipe (only VEGAPULS 42 and 44).
".
"
Pulse velocity
Meas. environ-
" you only
Meas. environment/Meas. condition
• Click to "
• In the menu window "
tions
to your application.
• Confirm with "OK".
VEGAPULS 42, 44 and 45 – VBUS 53
Measuring conditions
Measuring condi-
" you click the options corresponding
".
Adjustment with the PC on the signal conditioning instrument
Furthermore, you can manually enter in the menu item " for the pulse velocity of the radar signal which travels at light velocity.
• Quit this menu if you do not want to make adjustment with "
• With "OK" you save the settings made.
• Click in the menu window "
ment
Pulse velocity
" to "
Quit
".
" a correction factor
Cancel
".
Meas. environ-
You are again in the menu window "
optimisation
Echo curve
With the menu item " window "Sensor optimisation" you can see the course and the strength of the detected radar echo. If, due to vessel installations, you expect strong false echoes, a correction (if possible) of the mounting location and orien­tation (during simultaneous monitoring of the echo curve) can help localise the false ech­oes and reduce their intensity. In the illustra­tion, you can see the echo curve (before correction of the sensor orientation) with a false echo nearly as large as the product echo.
".
Echo curve
Sensor
" in the menu
In the next illustration you can see the echo curve after optimum directing of the sensor to the product surface (sensor axis perpen­dicular to the product surface). The false echo, caused e.g. by a strut, is now reduced by more than 10 dB and will no longer influ­ence the measurement.
You see that the false echo is approx. 20 dB less than the useful echo (due to the strut) and therefore can no longer influence the measurement.
• Quit the menu window "
"
Quit".
Echo curve
" with
54 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on the signal conditioning instrument
False echo storage
You hereby authorise the sensor to mark all echoes before the product echo as false echoes. This prevents the sensor from erro­neously detecting a false echo as level echo.
With the menu item " the menu " thorise the sensor to save false echoes. The sensor electronics then saves the false ech­oes in an internal database and assigns them a lower level of importance than the useful echo.
• Click in the menu window to "
Sensor optimisation
optimisation
storage".
• Now click in the opening menu window "
False echo storage
oes". A small window opens.
• Enter here the verified product distance and click to "Create new
False echo storage
" you can au-
" in
Sensor
" to the menu item "False echo
" to "Learn false ech-
".
• Click to "Show echo curve".
The curve and the false echo marking are shown.
• Quit the menu with "Quit".
You are again in the menu window "
optimisation
With the menu item " tions in the menu " default.
".
Reset
Sensor optimisation
" you reset all op-
Sensor
" to
• Quit the menu window " with "Quit".
VEGAPULS 42, 44 and 45 – VBUS 55
Sensor optimisation
"
Adjustment with the PC on the signal conditioning instrument
You are then in the initial menu window "
strument data parameter adjustment
• Click in the menu window "
parameter adjustment
You are again in the main menu window.
Instrument data
" to "
Quit
In-
".
".
Parameter adjustment 2
Linearisation
The correlation between level and filling vol­ume is defined by the so-called linearisation curves. If, in your vessel, there is a correla­tion other than linear between level ("
age value
(linearised value of the filling volume), choose in the menu window " item "
Conditioning
" of the level) and the filling volume
Conditioning
Instrument data/Parameter adjustment/
".
Percent-
" the menu
The menu window " which a linear correlation between percent­age value of the level and the percentage value of the filling volume is preset. Beside the two programmed linearisation curves "
Horizontal cylindrical tank
tank
" you can also enter "
curves
". Linear means there is a linear corre-
lation between level and volume.
User programmable linearisation curves
• Click to "User programmable curve" to enter your own vessel geometry or a user programmable filling curve.
Linearisation
", and "
user programmable
" opens, in
Spherical
• Click to "
• Click in the menu window " the menu item "Linearisation".
56 VEGAPULS 42, 44 and 45 – VBUS
Conditioning
" to
Edit
".
Adjustment with the PC on the signal conditioning instrument
The user-programmable linearisation curve is generated by index markers. Each index marker consists of one value pair. A value pair is generated from a value " and a value "
value
level. "
Percentage value"
" represents the percentage value of the
Linearised
" represents the percentage
Linearised
. "
Percentage
"
of vessel volume at a certain percentage value of the level.
In the field "
Transfer measured value
" the current level as percent of the adjusted span is displayed. The measuring span has al­ready been adjusted with the min./max. ad­justment. In our example, the measuring span is 4.58 m and is the range from 5.85 m (empty) up to 1.27 m (full), see the following illustration.
5.85 m meas. distance corresponds to 0 % level. 1.27 m meas. distance corresponds to 100 % level. The measuring span is therefore
4.58 m (5.85 m – 1.27 m = 4.58 m).
The percentage value of 95.79 % means that now 4.387 m of the adjusted measuring span (4.58 m) have been reached:
4.58 • 0.9579 = 4.387 m.
The distance (product distance) outputted by the sensor, in case you have chosen "
distance
" as output parameter, is then:
5.85 – (4.58 • 0.9579) = 1.463 m. If the index markers or value pairs of your vessel are not known, you have to define the linearisation curve by incremental filling or calculate it with the vessel calculation pro­gram of VVO.
Defining the linearisation curve by incre­mental filling
In the characteristics of the example, you see four index markers or value pairs. There is always a linear interpolation between the index markers. The example vessel consists of three cylindrical segments of different height and diameter. The middle segment has a considerably smaller diameter.
• Click the check box "Show scaled values", to have the selected measuring unit dis­played on the y-axis (bottom left in the menu window).
0 m
100 % at 1.27 m
1,463 m (95,79 %)
Index marker 1 is at 0 % filling (
value [%]
), corresponding in the example to
percentage
an actual distance to the product surface of
5.850 m (empty vessel). The volume quantity
is 45 liters (fluid remaining in the vessel). Index marker 2 is at a filling level of 30 %
Span
4.58 m
(100 %)
4.387 m
(95.79 %)
0 % at 5.85 m
VEGAPULS 42, 44 and 45 – VBUS 57
(30 % of the meas. distance of
1.270 m … 5.850 m). At a filling level of 30 %,
there are 576 liters in the vessel (in our exam­ple).
Adjustment with the PC on the signal conditioning instrument
Index marker 3 is at a filling level of 60 %. At this filling level there are 646 liters in the ves­sel. Index marker 4 is at a filling level of 100 % (product distance 1.270 m), where 1200 liters are in the vessel.
Max.
Min.
100 % (1.270 m) correspond to 1200 liters
Span (4.58 m)
0 % (5.850 m) correspond to 45 liters
Max. 32 index markers can be entered per linearisation curve (value pairs).
Calculating the linearisation curve
(using previous tank example)
In the menu window "
programmable curve --
vessel calculation program. With the vessel calculation program you can calculate (using dimensions from the technical drawings of the vessel) the correlation of filling height to filling volume. If the curve is defined this way, gauging by incremental filling is not neces­sary - your sensor will output volume as a function of level.
Linearisation -- user
" you can start the
• Click to "Calculate".
The tank calculation program starts. In the top left corner you choose the vessel type (upright tank, cylindrical tank, spherical tank, individual tank form or matrix). When choos­ing matrix, you can enter a user-programma­ble linearisation curve by means of index markers. This corresponds to the input of value pairs (linearisation points), as previ­ously described.
In the following example, the tank calculation program calculates the linearisation curve of a vessel corresponding to the vessel in the previous gauging example.
• Click to "
individual tank form
" and choose three round tank segments with the dimen­sions 0.88 m • 0.9 m (height by diameter),
0.66 m • 0.47 m and 0.66 m • 1.12 m (this tank form corresponds to the tank form of the gauging example).
58 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on the signal conditioning instrument
• Click to "
After a short calculation time, the levels in percentage of span and the respective vol­ume percentage will be shown. The outputted curves show the correlation in a diagram.
• Quit the linearisation table with "OK".
Calculate
".
You are again in the menu window "
Linearisation -- user programmable curve --
The volume percent values with correspond­ing percentage values of the level are shown in scaled values (in example liters) if the check box in the bottom left corner of the menu window has been clicked.
Calculate cylindrical tank
• Click in the menu window "
user programmable curve --
and in the menu window " to the symbol for cylindrical tanks.
Linearisation --
" to "Calculate
Tank calculation
".
"
"
You are again in the menu window "
calculation
• Click to "OK" to save the tank calculation.
VEGAPULS 42, 44 and 45 – VBUS 59
".
Tank
Adjustment with the PC on the signal conditioning instrument
• Choose the "
Measuring unit
", which should be used for the input of the vessel dimen­sions, e.g. mm.
The following example shows a cylindrical tank is inclined by 3° and has a length of 10000 mm and a diameter of 5000 mm. The cylindrical tank has a 1500 mm wide, spheri­cal form at the right end and a dished end at the left.
In the bottom left corner in the menu window "
Tank calculation
dimensions are internal dimensions
" you find the information "
".
All
Entering the wall thickness is not necessary for the calculation of the dished boiler end as its mathematical calculation is based on the outer dimension.
• Click to "Calculate".
You will get the calculated linearisation table after a short calculation time. By means of 32 linearisation points, a function correlating vessel volume to filling height is outputted. The example vessel has a filling of 216561 liters at the 100 % line or 216.6 m
3
. It is possi­ble to output the volume in barrels, gallons, cubic yards or cubic feet.
The calculation program calculates the vessel volume by means of the inner dimensions of the vessel. Above the information "
sions are internal dimensions
two fields with the percentage values 0 % and 100 %. Here you can shift the 100 % line or the 0 % line. In the example, the 100 % filling line was defined at a distance of 650 mm from the upper vessel edge (inner).
All dimen-
", you will find
There is a linear interpolation between the linearisation points.
• Click to "OK" and you are again in the menu
window "
• Again click in the menu window "
culation
Tank calculation
".
" to "OK" and you are in the
Tank cal-
linearisation menu.
60 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on the signal conditioning instrument
The sensor then outputs the actual filling volume by means of the adjusted vessel dimensions.
Here the calculated linearisation curve is again outputted. The volume information under "
Linearised
longer to the calculated volume of the tank calculation program. Why?
In the menu " tioning/Scaling) you entered that at 0 % filling there are 45 liters in the tank and at 100 % filling 1200 liters. The geometry of the calcu­lated cylindrical tank is reduced to a size that has a volume of only 1200 liters. The linearisation curve of the calculated vessel is therefore modified to fit the volume data you entered in the menu "
If the true content of the calculated vessel should be outputted, the volume that was determined in the tank calculation program must be entered in the menu "Scaling".
" now corresponds no
Scaling
" (Instrument data/Condi-
Scaling
".
• Quit the menu with "OK".
• Confirm with "OK" and your individual linearisation curve is saved in the sensor.
Again in the menu window " can enter with the menu item " a measured value integration. This is recom­mended for agitated product surfaces, to prevent the measured value indication and output from changing constantly. As a standard feature, an integration time of 0 seconds is preset.
• Quit the menu with "OK"., you are again in the menu window "
eter adjustment
Conditioning
Integration time
Instrument data param-
".
", you
"
• Quit the menu window with "OK".
VEGAPULS 42, 44 and 45 – VBUS 61
Adjustment with the PC on the signal conditioning instrument
Outputs
Configure outputs
VEGAMET 514V/515V is provided with cur­rent, voltage and switching outputs. VEGALOG enables additional transistor outputs. Before an adjustment signal is set (parameter adjustment), it must be assigned to a particular (configurate), because inputs and outputs are independent components. For example, a sensor signal can be assigned to several current or voltage out­puts (three per VEGAMET) and the param­eter adjustment for each output can be different (0 … 20 mA; 20 … 0 mA etc.). Relay switching functions, after being assigned to a sensor signal, are adjusted during the pa­rameter adjustment, for example with certain switching routines (dry run protection, overfill protection, switching points, switching hyster­esis).
In the following, the configuration of outputs with the PC is described, which can be natu­rally carried out also with the 6 adjustment keys on the VEGAMET 514V, 515V and 614V signal conditioning instrument. See operating instructions of the signal conditioning instru­ments.
• Choose in the opening window "
Selection of measurement loop – Designations and outputs
" the measurement loop (sensor), to
which you want to assign an output signal.
For signal conditioning instruments, you have a choice of max. two (VEGAMET 515V) sensors or measurement loops.
When using a VEGALOG, this choice can include a number of measurement loops, as you will see in the following illustration.
• For configuration of the outputs, choose "
Configuration/Measurement loop/Modify
• Click to "
62 VEGAPULS 42, 44 and 45 – VBUS
Designations and outputs
".
• Choose the sensor or the measurement
".
loop to which you want to assign outputs.
The menu window "
– Measurement loop designation
Here you can enter a new name for the meas­urement loop in addition to assigning the outputs.
Modify measurement loop
" opens.
Adjustment with the PC on the signal conditioning instrument
Depending on the VEGAMET or VEGALOG version, the following outputs will be available for use:
- current output (0 … 20 mA)
- voltage output (not VEGALOG)
- switching output (relay, transistor)
- VEGADIS output (local bus)
- fault signal (relay)
- PC/DCS address (local instrument bus address)
- Switching input
• Now click e.g. to "
The window, " opens, in which you can assign one or sev­eral current outputs to one measurement loop.
In the left window the available current out­puts are shown. Outputs already assigned to a measurement loop are shown in the left window with their measurement loop number in addition to the output number.
• Save the adjustment with "OK".
You are again in the menu window "
Current output
".
Configure current output
Modify
"
measurement loop – Measurement loop des­ignation
".
• Click to "
Also in the menu window "
output
to a measurement loop.
If you operate a VEGALOG, there are natu­rally more relays available.
Switching output
".
Configure switching
" you can assign one or several relays
VEGAPULS 42, 44 and 45 – VBUS 63
Adjustment with the PC on the signal conditioning instrument
Parameter adjustment outputs
After having configured the outputs, you can allocate the requested properties to the out­puts (parameter adjustment).
• Click in the menu window to "
data/Parameter adjustment
• Choose the measurement loop on which you want to make the parameter adjust­ment of the outputs.
Instrument
".
In the window " exact current function of the current output. Here also the parameter adjustment of a switching output is done.
Current output
" you adjust the
The menu window "
adjustment
• Click to "
• In the window " "
64 VEGAPULS 42, 44 and 45 – VBUS
" opens.
Outputs
Current output
Instrument parameter
".
Outputs
" you choose e.g.
".
Adjustment with the PC on the signal conditioning instrument
• Click "
Info
" to show the function e.g. of the switching window, if the switching condition between 20 % and 60 % should be "On".
You want to have a function "
against dry running of pumps"
Protection
, where e.g. a pump in a drop vessel starts emptying at 36 % filling and switches off at 8 %.
Switching delays are adjusted under "
Configure
".
• Click to "OK".
• If you want to save your settings, you have to click in the window " "
Save
".
Switching output
" to
The settings are permanently saved in the signal conditioning instrument (or in the processing system) - even in case of mains failure.
• Click to "
Info
" to show the diagram of the
pump control.
VEGAPULS 42, 44 and 45 – VBUS 65
• Qui the menu window " with "
Quit
".
Switching output
"
Adjustment with the PC on the signal conditioning instrument
Sensor-Display
• In the menu window " "
Display of measured value
"
Sensor-Display
".
Outputs
" you click to
" and choose
• Enter the meas. distance in m which you have set in the Min/Max-adjustment and the litre values corresponding to the min. and max. value.
• Click to "Save".
• Click in the window
"Quit" .
• Click in the window "
value
" to
"Quit"
You are again in the menu window "
• Click in the menu window " "
Quit
".
• Click in the menu window "
parameter adjustment
You are again in the main menu window.
"Sensor-Display
Display of measured
.
Outputs
Instrument data
" to "
Quit
" to
Outputs
" to
".
Show measured value
• Click in the main menu window to the menu "
Display/Display of measured value
choose the measurement loop (in the example, only one is available).
" and
".
• Choose under " "
Parameter
• Choose in the menu window "
play
" "
Scaled
the values displayed, e.g. in litres. In the example, a level of 45 … 1200 liters would have been displayed.
66 VEGAPULS 42, 44 and 45 – VBUS
Sensor no.
" "Scaled" and click to "
" "A" and under
Sensor Dis-
", "
Volume
", if you want to have
Save
".
Adjustment with the PC on the signal conditioning instrument
• Choose in the line " output "
Scaled
value will be displayed (in liters and volume percent), as well as the actual signal cur­rent in the 0/4 … 20 mA signal cable.
Indication value
" and e.g. the measured
" the
Simulation
• Click to the menu " and choose the measurement loop (in the example only one is available).
You are informed about the effect of the simu­lation on relay or current outputs.
Diagnostics/Simulation
The menu window " similar to the previous menu window, opens. In this menu window however, you can set the filling of the vessel or the signal current and the indication to any value (simulate measured value).
First of all, the actual measured value and the signal current are displayed.
"
• Click to "Start" in the turquoise window segment.
The grey scroll bar becomes active. With this scroll bar you can modify the measured value in the range of -10 % … 110 % and thereby simulate the filling or emptying of the vessel. In the field of the turquoise window cutout you can enter any % value for the filling percentage.
Simulation of outputs
",
Note:
The simulated measured value is outputted during adjustment with the PC until you termi­nate the simulation mode.
VEGAPULS 42, 44 and 45 – VBUS 67
Adjustment with the PC on the signal conditioning instrument
Backup
• Click to "
In the menu field " serial number is displayed. You can save the sensor individually or in groups with all rel­evant settings in any directory on your PC. It is also possible to add small notes to each backup.
Furthermore you can save the settings of the VEGAMET signal conditioning instrument or of VEGALOG.
Services/Backup/Sensors
Backup
" the sensor with its
".
Restore data
Saved sensor data can be transferred to other sensors at a later time. If e.g. you have a system with several of the same storage vessels and identical sensors, it is sufficient to configure one sensor, save the settings and then transfer them to the other sensors.
• Choose the menu "
figuration/Sensors
In the yellow window cutout, you choose a sensor (or a signal conditioning instrument) which should be overwritten with the settings of another sensor.
Services/Restore con-
".
Choose in the field " serial number of the sensor from which you want to transfer the settings. With "
after
" you transfer these sensor settings to the sensor you have chosen in the yellow window cutout.
Besides the data of the sensors, also the data of a VEGAMET or VEGALOG can be restored.
68 VEGAPULS 42, 44 and 45 – VBUS
Selection of backup
Restore
" the
Adjustment with MINICOM or VEGAMET

5.3 Adjustment with VEGAMET or MINICOM

Beside the PC, the VEGAPULS series 40 radar sensors with VBUS output signal can also be adjusted with
- the signal conditioning instrument
- or the detachable adjustment module
MINICOM.
The adjustment with VEGAMET signal condi­tioning instrument provides all the adjustment options available on the PC. Adjustment takes on a different appearance, but the scope of the adjustment functions is the same.
With the adjustment module MINICOM, only the sensor-relevant adjustments are possi­ble, such as e.g. operating range, measuring conditions, sensor scaling or false echo memory. However, all adjustment steps relat­ing to the configuration of the VEGAMET signal conditioning instrument and its signal processing (adjustment, configuration of the inputs and outputs, linearisation curves, simulation …) are not possible.
Indicating and adjustment panels
VEGAMET signal condi­tioning instrument
Branching, i.e. jump to the lower menu with [OK]
Interrupt adjustment or jump to the next higher menu
Analogue LED display (0 … 100 %)
ESC
-
12
on
%
100
!
+
OK
CONNECT
515V
Display, indication of
- measured value
- menu item
- parameter
- value
Depending on the menu item, change values or choose out of list
Choose menu window or shift flashing cursor
Save the adjusted value or move to the menu below
The adjustment of VEGAMET and the adjustment of MINICOM are identical. Adjustment is made with six keys. A small display shows you, apart from the measured value, a short message on the menu item or on the value of a menu adjustment.
The volume of information of the small display, however, cannot be compared with that of the adjustment program VVO, but in conjunction with the following menu schematic of MINICOM, the adjustment will not be a prob­lem. You might even be able to carry out adjustments more quickly and directly with the small adjustment field than with the PC.
Note:
You will find the menu schematic for VEGAMET in the operating instructions of the signal conditioning instruments.
Adjustment module MINICOM
Tank 1 m (d)
12.345
ESC
+
-
OK
VEGAPULS 42, 44 and 45 – VBUS 69
Adjustment steps
In the following, you will see the menu schematic of the adjustment module MINICOM. The menu schematic of the VEGAMET signal conditioning instrument is shown in the operating instructions of the signal conditioning instrument. Set up the sensor in the numbered sequence. The respective numbers are stated in the menu schematics. Numbers 1 … 4 and 11 you will find in the menu schematic of the VEGAMET signal conditioning instrument. Numbers 5 … 10 you will find in the following MINICOM menu schematic. These numbers can be adjusted with the MINICOM MET.
1. Configuration of the measurement loop; as a rule, already preconfigured (see operating instructions VEGAMET).
2. Configuration of the input; as a rule, al­ready preconfigured (see operating instructions VEGAMET).
3. Min/Max. adjustment (see operating instructions VEGAMET).
4. Conditioning/Scaling VEGAMET (see operating instructions VEGAMET).
5. Measurement in a standpipe.
6. Operating range.
7. Meas. conditions.
8. False echo memory (only required when errors occur during operation).
9. Indication of the useful and noise level
10. Conditioning/Scaling of the sensor dis­play .
11. Outputs (see operating instructions VEGAMET).
and with VEGA-
Adjustment with MINICOM or VEGAMET
1. Configuration of the measurement loop
(see operating instructions VEGAMET)
First of all, you have to inform the signal con­ditioning instrument which application (level, distance, flow, …) you have and which sen­sor (radar, ultrasonic, …) is connected. Choose under mode "Standard" and under option "No option".
2. Configuration of the input
(see operating instructions VEGAMET)
First of all, you have to inform the signal con­ditioning instrument (only VEGAMET 515V) which input (input 1 or 2) the sensor is connected to.
3. Adjustment
(see operating instructions VEGAMET)
Under the menu item " the sensor which measuring range it should operate with.
You can carry out the adjustment without and with medium. Generally, you will carry out the adjustment without medium, as you can then adjust without a filling cycle.
Max.
Adjustment
100 % (1.270 m) correspond to 1200 liters
" you inform
Short explanations to the setup steps 1 … 11 follow.
Min.
70 VEGAPULS 42, 44 and 45 – VBUS
Span (4.58 m)
0 % (5.850 m) corresponds to 45 liters
Adjustment with MINICOM or VEGAMET
Adjustment without medium
(adjustment independent of the actual level)
Key adjustment Display indication
Sensor
m(d)
4.700
Para-
OK
OK
OK
OK
+
The distance indication flashes and you can choose "feet" and
meter
Adjust­ment
w.o medium
Ad­just­ment in
m(d)
(min. adjustment)
"m".
OK
+
or
Confirm the adjustment with "
OK
".
Ad­just­ment in
m(d)
0.0%
at
m (d)
XX.XXX
With "+" and "–" you adjust the percentage value for the min. value or the lower level (exam­ple 0.0 %).
OK
The adjusted product dis­tance is written in the sensor and the display stops flash­ing.
You thereby adjusted the lower product dis­tance as well as the percentage filling value corresponding to the lower product distance.
100.0%
at
m (d)
XX.XXX
(max. adjustment)
The max. adjustment (upper product dis­tance) is made in the same way (example: 100 % and 1.270 m).
Note:
The difference between the adjustment val­ues of the lower product distance and the upper product distance should be as big as possible, preferably at 0 % and 100 %. If the values are very close together, e.g. lower product distance adjustment at 40 % (3,102 m) and upper product distance adjustment at 45 % (3.331 m), the measurement will be inaccurate. A characteristics curve is generated from the two points.
Even the smallest deviations between actual product distance and entered product dis­tance will considerably influence the slope of the characteristic curve. When the adjust­ment points are too close together, small errors multiply to considerably larger errors at the output of the 0 % or the 100 % value.
OK
The adjusted percentage value is written in the sensor and the distance corres­ponding to the percentage
Adjustment with medium
(dependent on the actual level)
with medium
value flashes.
+
or
With the "
+
" or "–" key you can assign a level distance (ex­ample 5.85 m) to the previ­ously adjusted percentage
Min. adjust at %
XXX.X
Max. adjust at %
XXX.X
value. If you do not know the distance, you have to do a sounding.
VEGAPULS 42, 44 and 45 – VBUS 71
Adjustment with MINICOM or VEGAMET
Fill the vessel e.g. to 10 % and enter 10 % in the menu "
Min. adjust
" with the "+" and "–" keys. Then fill the vessel, e.g. to 80 % or 100 % and enter 80 % or 100 % in the menu "
Max. adjust
" with the "+" and "–" keys. If you do not know the distance, you have to calcu­late it by incremental filling.
OK
The indication stops flashing and the adjustment will be saved.
You have entered the min. value.
100.0%
at
m (d)
XX.XXX
(max. adjustment)
Enter the max. adjustment like the min. ad­justment with "+", "–" or "OK" (example: 1.270 m).
4. Conditioning/Scaling VEGAMET
(see operating instructions VEGAMET)
Under the menu item " you choose the product distance at 0 % and at 100 % filling. Then you enter the parameter and the physical unit as well as the decimal point, e.g. distance.
Signal condit ioning
Scal ing
Conditioning/Scaling
"
Enter in the menu window "
0 % corresponds
the value of the 0 % filling. In the example of the adjustment with the PC and the adjust­ment software VVO this would be 45 for 45 liters.
• Confirm with "
OK
".
With the "—>" key you change to the 100 % menu. Enter here the value of your parameter corresponding to a 100 % filling. In the exam­ple 1200 for 1200 liters.
• Confirm with "
OK
".
If necessary, choose a decimal point. How­ever, note that only max. 4 digits can be displayed. In the menu "
prop. to
" you choose the parameter (mass, volume, distance…) and in the menu "
Unit
" the physical unit (kg, l,
ft3, gal, m3 …).
Linearisation:
Adjust ment
Signal condit ioning
Scal ing
Lin. curve
Linear
Integr ation time
0 s
A linear correlation between the percentage value of the product distance and percent­age value of the filling volume is preadjusted. With the menu "Lin. curve" you can choose between linear, spherical tank and cylindrical tank. The creation of one’s own linearisation curve is only possible with the PC and the adjustment program VVO.
"
0 %
100 %
Deci-
prop.
corres
corres ponds
XXXX
mal point
888.8
ponds
XXXX
72 VEGAPULS 42, 44 and 45 – VBUS
Unit
to
Mass
Kg
Adjustment with MINICOM or VEGAMET
5. Measurement in a standpipe
This adjustment is only necessary if the sensor is mounted on a standpipe (surge or bypass tube). When measuring in a standpipe, the distance must be sounded and the measured value display (can deviate a few percentages from the sounded value) must be corrected according to the sounding. Then the sensor corrects future running time shifts of the radar signal in the standpipe and displays the correct level in the standpipe (meas. tube).
6. Operating range
Without special adjustment, the operating range corresponds to the measuring range. The measuring range has already been ad­justed with the min./max. adjustment. Gener­ally it is useful to choose a slightly bigger (approx. 5 %) operating range than measur­ing range.
Example: Min./max. adjustment: 0.500 … 3.500 m; adjust operating range to approx.
0.400 … 3.600 m.
7. Meas. conditions
(see MINCOM menu schematic)
9. Useful and noise level
In the menu
you get important information on the signal quality of the product echo. The higher the "S-N" value, the more reliable the measure­ment (menu schematic MINICOM).
Ampl.: means amplitude of the level echo in
S-N: means Signal-Noise, i.e. the useful
The bigger the "S-N" value (difference be­tween the amplitude useful level and the noise level), the better the measurement: > 50 dB Measurement excellent 40 … 50 dB Measurement very good 20 … 40 dB Measurement good 10 … 20 dB Measurement satisfactory 5 … 10 dB Measurement sufficient < 5 dB Measurement poor
Example:
Ampl. = 68 dB S-N = 53 dB
68 dB – 53 dB = 15 dB noise level
Ampl.:
XX dB
S-N:
XX
dB
dB (useful level)
level minus the level of the back­ground noise
53 dB signal level difference indicates very
8. False echo storage
A false echo storage is always useful when unavoidable false echo sources (e.g. struts) must be minimised. By creating a false echo
high measurement reliability.
10. Conditioning/Scaling of the sensor display
storage, you authorise the sensor electronics to record the false echoes and save them in an internal database. The sensor electronics treats these (false) echoes differently from the useful echoes and filters them out.
The menu item "Signal conditioning" in the MINICOM menu relates only to the sensor display and will be overwritten by adjust­ments in the signal conditioning instrument.
11. Outputs
(see operating instructions VEGAMET)
VEGAPULS 42, 44 and 45 – VBUS 73
MINICOM menu schematic
Sensor
m(d)
4,700
PULS52 V
1.00
When switching on, the sensor type and the software version are displayed for a few seconds.
Adjustment with MINICOM or VEGAMET
Para­meter
6.
Sensor optimi­sation
Meas. enviro­nment
Opera­ting range
Begin
m (d)
0.50
Sensor Tag
Sensor
End
m (d)
6.00
Only visible with VEGAMET
Meas. condit­ions
7.
Condit ion
Liquid
Sensor optimi­sation
see menu schematic
Configuration/Inputs…"
of the VEGAMET signal
conditioning instrument
Measur­ing in tube
Meas. dist.
m (d)
4.700
Correc­tion Now !
OK ?
Agitat
Fast
ed sur
change
face No
No
5.
Only with VEGAPULS 42 and 44
Foam-
Low
ing
DK
prod.
product
No
No
False echo memory
Create new Now ! OK ?
Meas. in tube
No
8.
Create new
Meas. dist.
m (d)
X.XX
Learn­ing !
Mul­tiple echos No
Confi­gura­tion
Sensor Tag
Sensor
Update
Meas. dist.
m (d)
X.XX
Update Now! OK ?
Learn­ing !
Meas. unit
m (d)
Delete
Delete now! OK ?
Delet­ing !
Fast change
No
XXXX
High dust level No
100 % corres ponds
XXXX
Deci­mal point
Large angle repose No
888.8
Prop. to
Mass
Mul­tiple echos No
Unit
Kg
Outputs
Sensor displ.
Prop. to
Dis­tance
Displ. adjust ment
Adjust­ment in
m (d)
10.
0.0%
at
m (d)
XX.XXX
100.0%
at
m (d)
XX.XXX
Condit ion
Solid
Signal condit­ioning
Sca­ling
0 % corres ponds
74 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with MINICOM or VEGAMET
With these keys you move in the menu field to the left, right, top and bottom
ESC
Reset to default
Reset Now!
OK ?
Reset­ting
actual dist.
m (d)
4.700
see menu schematic "Add'l
funct./Info…" of the
VEGAMET signal condi-
tioning instrument
9.
Ampl.:
XX dB
S-N:
XX
max. range
m (d)
7.000
OK
actual dist.
m (d)
4.700
Ampl.:
XX dB
S-N:
XX
dB
Add´l func­tions
Info Lan-
Reset
Sensor Tag
Sensor
to default
Reset Now!
Sensor type
PULS 52 V
dB
Input 1
OK ?
Reset­ting!
guage
Eng­lish
Serial number
1094 0218
Softw. vers.
3.00
Softw. date
10.09. 1999
Simulation:
The sensor returns to standard operating mode after one hour (after the last simulation setting).
Error code:
E013 No valid measured value
- Sensor in the warm-up phase
actual dist. m
X,XX
- Loss of the useful echo E017 Adjustment span too small E036 Sensor software does not run
- Sensor must be programmed with
new software (service).
- message appears during a soft-
ware update.
E040 Hardware failure
VEGAPULS 42, 44 and 45 – VBUS 75
High dust level No
Fast change
No
Menu items in bolt print provide sensor and measured value information and cannot be modified in this position.
Light grey menu fields are only displayed if required (dependent on the adjustments in other menus).
White menu items can be modified with the "+" or "–" key and saved with the "OK" key.
Adjustment with the PC on VEGALOG

5.4 Adjustment with the PC on VEGALOG

For connection of the PC to the VEGALOG processing system, a standard RS 232 DTE­DTE (Data Terminal Equipment) interface cable is required. Connect the PC with the cable to the processing system.
DTE DTE
DCD 1 1 DCD RxD 2 2 RxD TxD 3 3 TxD DTR 4 4 DTR GND 5 5 GND
--- 6 6 ---
--- 7 7 ---
--- 8 8 ---
--- 9 9 ---
Beside the measured values, adjustment signals are also transmitted digitally between sensor and processing system via the signal and supply cable. The adjustment program VVO can then communicate with the processing system and all connected sen­sors. In chapter "4.4 Configuration of measur­ing systems" the connection of the PC to the different configurations is shown.
The individual adjustment steps are marked in the following with a dot. Example:
• Choose …
• Start …
• Click to …
The first steps of the setup with the PC in conjunction with the VEGALOG processing system correspond to the adjustment in chapter "5.3 Adjustment with VEGAMET or MINICOM".
• Connect the standard interface of your PC
with the standard RS 232 interlink cable (9­pole) to the VEGALOG processing system.
• Now switch on the power supply of the
processing system.
After approx. 1 … 2 minutes (self-test) the measuring system, consisting of processing system and sensors, is in operating condition and the sensors display measured values.
• Now start the adjustment software VVO on your PC.
• Choose with the arrow keys or the mouse the item "
Planning
" on the entrance screen
and click to "OK".
In the next window, you are asked for the user identification.
• Enter under name "VEGA".
• Also enter "VEGA" under password.
The adjustment program VEGA Visual Oper­ating (VVO), called in the following VVO, gets into contact with the connected sensor and indicates after a few seconds if and with which sensor a connection exists.
Note:
If you make no connection with the sensor, check the following:
- Is the processing system being supplied with supply voltage?
- Did you inadvertently use a wrong RS 232 cable instead of the VEGA RS 232 connec­tion cable?
76 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on VEGALOG
If VVO (adjustment software) gets in contact with the processing system for the first time, you will be asked if you want to transfer the data from the processing system to the PC.
• Click to "
If you have connected the VVO to a VEGALOG from which data has already been saved, you are asked if the saved data should be transferred from the PC to VEGALOG or the data from VEGALOG to the PC.
The preadjusted user identification can be modified at a later time in the menu "
ration/Program/User access
Yes
".
Configu-
".
Configuration
The adjustment of a radar sensor with the PC on a VEGALOG generally corresponds to the adjustment of a radar sensor on the signal conditioning instrument, as in chapter "5.2 Adjustment with the PC on VEGAMET".
The only difference are the increased con­figuration requirements of VEGALOG. A number of possible sensor inputs and signal outputs as well as different processing routines must be assigned. First of all, you must define where and what processing which sensor (input) does.
Configuration info
• Choose the menu "
ing system
Configuration/Measur-
".
No matter whether you set up a measuring system (unit consisting of sensor and VEGAMET signal conditioning instrument or VEGALOG processing system) with the adjustment software VVO or with the signal conditioning instrument, the adjustment pro­cedure is always the same:
- first of all, create a measurement loop and configure a measuring system in the menu "
Configuration
- carry out the parameter adjustment of the sensor in the menu "
VEGAPULS 42, 44 and 45 – VBUS 77
" and then
Instrument data
".
You now reach the menu "
Measuring system
representation of the VEGALOG connected to the PC is displayed.
• Click to an individual card number and you will get a "Card info" in the window
Configuration
", in which a graphical
.
Adjustment with the PC on VEGALOG
Create new measurement loop
• Click in the card info window of your EV card (input card VBUS) to "
Sensor survey"
You get an overview of the sensors con­nected to the card.
• Choose the menu "
ment loop/New
.
Configuration/Measure-
".
You are in the menu window "
measurement loop - Application
Create new
". Choose the parameter (level measurement, gauge or distance) and the sensor type (Pulse Radar for radar).
• Choose "
Radar
• Click to "
78 VEGAPULS 42, 44 and 45 – VBUS
Level measurement
".
Continue
".
" and "
Pulse
Adjustment with the PC on VEGALOG
• Choose in the next menu window "
ard level measurement
• Click to "
After a few seconds, the menu window "
Continue
" and "
".
Stand-
no options
Cre-
".
ate new measurement loop - Sensor configu­ration
" opens.
• Click to "
The small menu window " opens.
Sensor coordination
Sensor coordination
".
• Choose the serial number of the sensor you want to coordinate and confirm with "OK".
• Click in the menu window "
Create new
measurement loop - Sensor configuration
to "
Continue
• Click in the menu window "
".
Create new measurement loop - Measurement loop designation
"
" to "
Level
".
"
VEGAPULS 42, 44 and 45 – VBUS 79
Adjustment with the PC on VEGALOG
The menu window "
loop - Measurement loop designation
Enter:
- a measurement loop number
- a measurement loop description
- allocate one or several output signals to your sensor.
• For example, configure a current output by clicking to "
In the menu window "
put
", you choose a current output card in your VEGALOG and allocate one or several current outputs to the sensor.
Create new measurement
Current output
".
Configure current out-
" opens.
• Confirm your adjustments with "OK".
• Click to " initial menu.
Quit
" and you are again in the
You have carried out the special additional configuration settings in conjunction with a VEGALOG.
• Confirm your adjustment with "OK" and you are again in the window "
Create new meas-
In the menu "
tem"
you now see that one sensor is
configured.
Configuration/Measuring sys-
urement loop - Measurement loop designa­tion
".
80 VEGAPULS 42, 44 and 45 – VBUS
Adjustment with the PC on VEGALOG
Parameter adjustment 1
Now you have to carry out the parameter adjustment for the sensor. The parameter adjustment is nearly identical to the param­eter adjustment in chapter "5.2 Adjustment with the PC on VEGAMET".
In the menu "
justment
settings. The settings correspond to those under parameter adjustment 1 in chapter "5.2 Adjustment with the PC on the signal condi­tioning instrument".
The same is valid for the following menu items corresponding to the adjustment steps in chapter "5.2 Adjustment with the PC on the signal conditioning instrument". For this rea­son, they are not described again in this paragraph.
Sensor optimisation
- Meas. environment/Operating range
- Meas. environment/Meas. conditions
- Meas. environment/Pulse velocity
- Echo curve
- False echo storage
Parameter adjustment 2
- Linearisation
- User-programmable linearisation curves
- Defining the linearisation curve by incre­mental filling
- Calculating the linearisation curve
- Calculate cylindrical tank
Outputs
- Configuration outputs
- Parameter adjustment outputs
Display of measured value
Simulation
Backup
Instrument data/Parameter ad-
" you carry out all important sensor
VEGAPULS 42, 44 and 45 – VBUS 81

6 Diagnosis

Diagnosis

6.1 Simulation

To simulate a certain filling, you can call up the function "Simulation" on the adjustment module MINICOM, in the software program VVO or on the signal conditioning instrument.
You simulate a vessel filling and thereby a certain sensor current. Please note that con­nected instruments, such as e.g. a PLC react according to their adjustments and will prob­ably activate alarms or system functions.
Simulation with VVO
If you start the simulation mode with the ad­justment program VVO on the PC, the simu­lated level is outputted until you quit the simulation mode.
Simulation with VEGAMET
If you call up the simulation mode with the adjustment keys on the signal conditioning instrument, 15 minutes after the last adjust­ment the signal conditioning instrument re­turns to standard operating condition.
Simulation with MINICOM
If you start the simulation mode on the adjust­ment module MINICOM, the sensor returns to standard operating mode after one hour.

6.2 Error code

Error code Rectification
E013 No valid measured value Message is displayed during warm-up phase
- Sensor in the warm-up phase
- Loss of the useful echo If the message remains, a false echo storage must be made with the adjustment module MINICOM in the menu "sensor optimisation” or better, with the PC and VVO. If the message still remains, carry out a new adjustment.
E017 Adjustment span too small Carry out a readjustment.
E036 Sensor software does not run Sensor must be programmed with new software
E040 Hardware failure/Electronics defec- Check all connection cables.
tive Transducer defective.
82 VEGAPULS 42, 44 and 45 – VBUS
Make sure that the difference between min. and max. adjustment is at least 10 mm.
(service). Message appears during a software update.
Contact our service department.
Technical data

7 Technical data

7.1 Data

Power supply
Supply voltage The sensor is powered by the VEGAMET signal
Number of sensors per two-wire cable VEGAMET max. 2 sensors
Sensor voltage min. 12 V, max. 36 V DC (Ex: max. 29 V DC) Current consumption max. 6 mA Power consumption max. 81 mW Resistance of the signal cable max. 15 per wire Cable length
-1.5 mm
-1 mm
- 0.75 mm
Measuring range
2
and 2.5 mm
2
2
1)
2
VEGAPULS 42
- standard ø 40 mm horn 0 … 10 m
- optional ø 48 mm horn 0 … 15 m ø 75, 95 mm horn 0 … 20 m
VEGAPULS 44
- DN 50, ANSI 2" 0 … 15 m
- DN 80, 100, ANSI 3", 4", 6" 0 … 20 m
VEGAPULS 45 0 … 4 m
conditioning instrument, the VEGALOG proces­sing system or the VEGATRENN 548V Ex separator
VEGALOG max. 15 sensors (recommended 5) VEGATRENN (Ex) max. 5 sensors
max. 1000 m max. 840 m max. 630 m
Output signal
Signal output digital VBUS output signal in two-wire technology
(VEGA-Bus). the digital output signal (meas. signal) is modulated to the power supply and further processed in the signal conditioning instrument or in the processing system.
Integration time (adjustable)
- in the sensor 0 … 999 seconds
- in the signal conditioning instrument 0 … 600 seconds
Load resistance of the signal cable max. 15 Ohm per
wire and max. 1000 m cable length (with 15 sensors on one two-wire cable max. 10 Ohm per wire)
1)
Min. distance of the antenna to the medium 5 cm
VEGAPULS 42, 44 and 45 – VBUS 83
Technical data
Measured value display (optional)
Liquid-crystal indication
- in the sensor scalable output of measured values as graph and as number
- in the external indicating instrument scalable output of measured values as graph
powered by the sensor and as number. Measured value display can be
mounted up to 25 m away from the sensor
Adjustment
- PC and adjustment software VEGA Visual Operating
- adjustment module MINICOM
- VEGA signal conditioning instrument
Accuracy
1)
(typical value under reference conditions, all statements relate to the nominal
measuring range, for type 45 relating to a measuring range of 4 m)
Characteristics linear Accuracy (deviation in characteristics
incl. linearity, repeatability and hysteresis determined by the limit point method) < 0.05 %
Average temperature coefficient
of the zero signal 0.06 %/10 °K Resolution generally max. 1 mm Resolution of the output signal 0.005 % or 1 mm
Characteristics
1)
(typical values under reference conditions, all statements refer to the nomi-
nal measuring range)
Min. span between
full and empty > 10 mm (recommended > 50 mm) Frequency 26 GHz technology Meas. intervals 0.6 s Beam angle (at -3 dB)
- VEGAPULS 42 22° optional 18°, 10° and 8° bigger coupling horns, deviating
from standard dimensions
- VEGAPULS 44 DN 50, ANSI 2" 18° DN 80, ANSI 3" 10° DN 100, ANSI 4" 8° DN 150, ANSI 6"
Adjustment time (response time) > 1 s (dependent on the parameter setting) Influence of the process temperature cannot be measured at 0 bar;
at 5 bar 0.004 %/10 °K;
at 40 bar 0.03 %/10 °K Influence of the process pressure 0.0265 %/bar Adjustment time Radar emitted power (average) 0.717 µW Received average emitted power
2)
3)
> 1 s (dependent on the parameter setting)
- distance 1 m 0.5 … 1.5 nW per cm² (0.5 … 1.5 x 10-9W/cm²)
- distance 5 m 0.02 … 0.6 nW per cm²
1) 2) 3)
See footnotes on next page
84 VEGAPULS 42, 44 and 45 – VBUS
Technical data
Ambient conditions
Vessel pressure -1 … 16 bar (-100 … 1600 kPa)
-1 … 40 bar (-100 … 4000 kPa) Ambient temperature on the housing -30 °C … +80 °C Process temperature (flange temp.) -20 °C … +150 °C (option -40 °C … +150 °C) Storage and transport temperature -60 °C … +80 °C Protection IP 66 and IP 67 Protection class II Overvoltage category III
Ex technical data
Comprehensive data in the attached approval documents (yellow binder) Intrinsically safe version
- classification ia intrinsically safe in conjunction with a separator or safety barrier
- classification mark II 2G EEx ia II T6
- Ex approved Zone 1 (ATEX) Zone 1 (CENELEC, PTB, IEC)
or
- classification mark II 1G EEx ia IIC T6
- Ex approved Zone 0, Zone 1 (ATEX) Zone 0, Zone 1 (CENELEC, PTB, IEC)
Permissible ambient temperature on the housing
- T6 -40 °C … +55 °C
- T5 -40 °C … +70 °C
- T4, T3 -40 °C … +85 °C
- T2, T1 -40 °C … +70 °C
Permissible ambient temperature on the antenna system if used in Ex areas
- T6 -40 °C … +85 °C
- T5 -40 °C … +100 °C
- T4 -40 °C … +135 °C
- T3 -40 °C … +150 °C
1)
Similar to DIN 16 086, reference conditions acc. to IEC 770, e.g. temperature 15 °C … 35 °C; humidity 45 % … 75 %; air pressure 860 mbar … 1060 mbar
2)
The adjustment time (also called actuating time, response time or adjustment period) is the time required by the sensor to output the correct level (with max. 10% deviation) after a sudden level change.
3)
Average emitted power (electromagnetic energy) per cm² received on an object directly in front of the antenna. The received emitted power depends on the antenna version and the distance.
VEGAPULS 42, 44 and 45 – VBUS 85
Technical data
Process fittings
VEGAPULS 42 thread G 1½ A, 1½" NPT
antenna as horn with ø 40 mm antenna horns from ø 48 … 95 mm (can be retrofitted optionally)
VEGAPULS 44 flanges with DN 50, DN 80, DN 100, DN 150
as well as ANSI 2", 3", 4" and 6" antenna as horn (antenna horns from ø 48 … 95 mm dependent on the flange size)
VEGAPULS 45 flanges with DN 50, DN 80, DN 100, DN 150
as well as ANSI 2", 3", 4" and 6" or thread G 1½ A, 1½" NPT
Materials
Housing PBT (Valox) or
Aluminium die-casting (GD-AlSi 10 Mg) Process fitting 1.4435 Antenna (wetted parts) 1.4435 and PTFE Antenna seal with horn and pipe antenna
- standard Viton (-20 °C)
- option Kalrez, NBR, Viton for low temperature (-40 °C)
Connection cables
Two-wire sensors Vpower supply and signal via one two-wire
cable Electrical connection
- cable entry one cable entry and spring terminal connection up to max. 2.5 mm
2
wire cross-section
- plug connection optional for plastic housing: four-pole reverse battery screw connection (four-wire: two plug connections)
Cable entry
- non-Ex and Ex ia sensors 1 … 2 x M20 x 1.5 (cable ø 5 … 9 mm) or 1 … 2 x ½" NPT cable ø 3.6 … 8.7 mm or
Ground connection max. 4 mm
0.12 … 0.34 inch)
2
86 VEGAPULS 42, 44 and 45 – VBUS
Technical data
Weights
VEGAPULS 42 2.0 … 3.1 kg VEGAPULS 44
- DN 50 4.2 … 5.0 kg
- DN 80 6.8 … 7.6 kg
- DN 100 8.0 … 9.1 kg
- DN 150 13.2 … 14.3 kg
- ANSI 2" 5.2 … 5.7 kg
- ANSI 3" 6.9 … 7.5 kg
- ANSI 4" 10.5 … 11.1 kg
- ANSI 6" 14.6 … 15.4 kg
VEGAPULS 45 (plus meas. tube weight)
- G 1½ A or 1½" NPT 2.0 … 3.8 kg
- DN 50 4.2 … 6.0 kg
- DN 80 5.9 … 7.7 kg
- DN 100 7.0 … 8.8 kg
- DN 150 11.8 … 13.7 kg
- ANSI 2" 3.7 … 5.6 kg
- ANSI 3" 6.2 … 8.0 kg
- ANSI 4" 8.3 … 10.1 kg
- ANSI 6" 12.8 … 14.6 kg Meas. tube weight 1.6 kg per m
CE conformity
VEGAPULS series 40 radar sensors meet the protective regulations of EMC (89/336/EWG) and NSR (73/23/EWG). Conformity has been judged acc. to the following standards: EMC Emission EN 61 326: 1997/A1: 1998 (class B)
Susceptibility EN 61 326: 1997/A1: 1998
ATEX EN 50 020: 1994
EN 50 018: 1994 EN 50 014: 1997
NSR EN 61 010 - 1: 1993
VEGAPULS 42, 44 and 45 – VBUS 87
Technical data

7.2 Approvals

When using radar sensors in Ex areas or in marine applications, the instruments must be suitable and approved for the explosion zones and application areas. The suitability is tested by approval authori­ties and is certified in approval documents.
Intrinsically safe in Ex environment
For application in Ex environment, VEGAPULS 42.CX to 45.CX sensors must be powered from an intrinsically safe circuit. This is ensured by VEGATRENN 548V Ex separa­tors. The separator provides intrinsically safe (ia) circuits. The resistance of the signal cable must not exceed 15 Ohm per wire.
VEGAPULS 42.AX to 45.AC sensors are approved for Ex Zone 1. VEGAPULS 42.CX to 45.CX sensors are approved for Ex Zone
0.
Please note the attached approval docu­ments when using a sensor in Ex area.
Test and approval authorities
VEGAPULS radar sensors are tested and approved by the following monitoring, test and approval authorities:
- PTB
(Physical Technical Test Authority ­Physikalisch Technische Bundesanstalt)
- FM
(Factory Mutual Research)
- ABS
(American Bureau of Shipping)
- LRS
(Lloyds Register of Shipping)
- GL
(German Lloyd)
- CSA
(Canadian Standards Association)
88 VEGAPULS 42, 44 and 45 – VBUS
Technical data

7.3 Dimensions

External indicating instrument VEGADIS 50
85 38
ø5
48
10
Pg 13,5
Mounting on carrier rail 35 x 7.5 acc. to EN 50 022 or flat screwed
118
108
135
Flange dimensions acc. to ANSI (RF)
d
2
f
d
1
k D
82
b
Note:
Cable diameter of the connection cable min. 5 mm and max. 9 mm. Otherwise the seal effect of the cable entry
85
will not be ensured.
D = outer flange diameter b = flange thickness k = diameter of hole circle d
= seal ledge diameter
1
f = seal ledge thickness
1
/16" = approx. 1.6 mm
d
= diameter of holes
2
Size Flange Seal ledge Holes
Db k d1No. d
2
2" 150 psi 152.4 20.7 120.7 91.9 4 19.1 3" 150 psi 190.5 25.5 152.4 127.0 4 19.1 4" 150 psi 228.6 25.5 190.5 157.2 8 19.1 6" 150 psi 279.4 27.0 241.3 215.9 8 22.4
Adjustment module MINICOM
ESC
+
-
Tank 1 m (d)
12.345
67,5
74
VEGAPULS 42, 44 and 45 – VBUS 89
32,5
OK
Adjustment module to plugped into sensors or into the external indicating instrument VEGADIS 50
Sensor dimensions
Technical data
PBT Aluminium
201
165
101
199
ø 40
307
253
G1½ A
1½" NPT
322
SW 60
G½A 1½NPT
182
ø 40
G1½ A
1½" NPT
ø 40
22
1
0
125
100
˚
M20x1,5
145
0 7 3
PBT: 53 Al: 78
Aluminium with Exd terminal compartment
215
185
5 0 2
135
18
ø 40
ø 48
19
25
116
0 7 3
5 0
M20x1,5
139
2
ø 75
215
185
20
219
ø 95
116
25
½" NPT
20
319
8
1
ø
ø18
45˚
8
1
ø
VEGAPULS 42
ø 125
ø 165
DN 50 PN 40 (C)
ANSI 2" (RF)
ø 160
ø 200
DN 80 PN 40 (C)
ANSI 3" (RF)
ø 180
ø 220
DN 100 PN 16 (C)
ANSI 4" (RF)
VEGAPULS 44
90 VEGAPULS 42, 44 and 45 – VBUS
45˚
Technical data
Recommended max. socket length for VEGAPULS 42 and 44 dependent on the antenna version:
Sensor type Version Socket length Socket length
with antenna extension
VEGAPULS 42 Standard 135 mm 250 mm VEGAPULS 44 DN50/ANSI 2" 135 mm 245 mm
DN 80/ANSI 3" 210 mm 325 mm DN 100/ANSI 4" 310 mm 425 mm DN 150/ANSI 6" 310 mm 425 mm
20
ø 95
ø 40
108
319
ø 165…285
18…22
ø 27
125 65
22
125 65
29
ø 27
ø22
ø 240
ø 285
DN 150 PN 16 (C)
4
5
˚
DN 50…DN 150 PN 16/40 (C)
ANSI 2"…ANSI 6" (RF)
L max. 4000
L max. 4000
G1½ A
1½" NPT
ANSI 6" (RF)
VEGAPULS 45VEGAPULS 44
VEGAPULS 42, 44 and 45 – VBUS 91
VEGA Grieshaber KG Am Hohenstein 113 D-77761 Schiltach Phone (07836) 50-0 Fax (07836) 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 latest information at the time of printing.
Technical data to subject to alterations
2.24 903 / April 2001
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