VEGA SON51V User Manual
Operating Instruction
VEGASON 51 V … 53 V
Level and Pressure
Contents
Safety information ........................................................................... 2
1 Product description
1.1 Function ................................................................................... 4
1.2 Application feature .................................................................. 5
1.3 Adjustment ..............................................................................6
2 Types and versions
2.1 Survey ..................................................................................... 9
2.2 Configuration of measuring systems .................................. 12
3 Technical data
3.1 Data ....................................................................................... 17
3.2 Approvals ............................................................................. 20
3.3 Dimensions ............................................................................. 21
Contents
Safety information
The described module must only be installed
and operated as described in this operating
instruction. Please note that other action can
cause damage for which VEGA does not take
responsibility.
2 VEGASON 51 V … 53 V
Contents
4 Mounting and installation
4.1 General installation instructions ........................................... 23
4.2 Measurement of liquids ........................................................ 2 5
4.3 Measurement of solids ......................................................... 28
4.4 Socket extensions ................................................................ 30
4.5 Flow measurement ............................................................... 31
4.6 False echoes ......................................................................... 32
4.7 Installation error .................................................................... 35
5 Electrical connection
5.1 Connection and connection cable ....................................... 38
5.2 Connection of the sensor ..................................................... 3 9
5.3 Connection of an external indicating instrument
VEGADIS 50 ......................................................................... 40
6 Set-up
6.1 Adjustment structure ............................................................ 41
6.2 Adjustment with PC on VEGAMET ...................................... 42
6.3 Adjustment with VEGAMET or MINICOM ........................... 59
6.4 Adjustment with PC on VEGALOG ...................................... 72
VEGASON 51 V … 53 V 3
1 Product description
1.1 Function
The continuous level measurement with ultrasonic sensors is based on the running time
measurement of ultrasonic pulses.
Measuring principle:
Piezoceramic high-performance transducers
emit focussed ultrasonic pulses reflected
from the surface of solids and liquids. The
meas. signal prepares a precise picture of
the meas. environment out of the running time
and signal shape of the reflected ultrasonic
pulses. The transducers operate as emitter
and receiver. As receiver the transducers are
high sensitivity piezomicrophones.
Meas.
distance
Product description - Function
Out of the physical sound velocity and the
detected actual running time of the emitted
sound impulses, the meas. electronics calculates precisely the distance between transducer and product. The distance is converted into a level proportional meas. signal
and provided acc. to the sensor parameter
adjustment as exact scaled level. The instruments operate with emitting frequencies from
34 kHz to 70 kHz to be prepared for the
different distances and requirements.
As the sound velocity is subjected to a temperature influence, the transducer detects
continuously the ambient temperature so that
the level is provided precisely even with
varying ambient temperature.
emission - reflection - receipt
4 VEGASON 51 V … 53 V
Product description - Application feature
Output signal
The level proportional meas. signal is either
processed in the ultrasonic instrument itself
or in the connected signal conditioning instrument and provided as output signal.
In digital technology varying line resistances
or smallest leakage currents have no influence to the accuracy. The digital signal is
always clear.
Individual parameter adjustment of the digital
signal is possible and the signal always reflects the adjusted meas. range of the sensor.
Measured value indication
An indicating instrument for direct, local level
survey is integrated in the series 50 ultrasonic sensors. The indicating instrument
shows with the analogue bargraph immediately the level and with the digital figure value
precisely the level. Additionally to the indication in the sensor, the level can be indicated
with the external indicating instrument
VEGADIS 50 separated up to 25 m from the
sensor.
The external measured value indication like
the integral indication works completely independent from the output signal and individual
parameter adjustment is possible.
1.2 Application feature
Applications
• Level measurement of liquids
• Level measurement of solids
(only short meas. distances) such as
e.g.:
coal, ore, stones, stone dust, cement,
gravel, crushed stones, sand, sugar,
salt, cereals, flour, granules, powder,
dusts, saw dust, wood chips
• Flow measurement on various flumes
• Gauge measurement, distance measurement, object monitoring and conveyor belt monitoring
Two-wire technology
• Supply and output signal on one twowire line (loop powered)
• Output signal and signal processing
completely digital
Rugged and precise
• Unaffected by product features such
as density, conductivity and dielectric
constant figure …
• Suitable for aggressive substances
• Meas. ranges 0,25m…15m
• Precise due to digital measured value
processing and transmission
Adjustment choice
• With adjustment software VEGA Visual
Operating (VVO) on PC
• With detachable adjustment module
MINICOM
• With signal conditioning instrument
VEGAMET
• Measured value indication integrated
in the sensor
• Optionally indication separated from
the sensor
Connection for each process
•G 11/2 A, 11/2" NPT
• G 2 A, 2" NPT
• Compression flange DN 100, ANSI 4"
Approvals
• CENELEC, FM, CSA, ABS, LRS, GL,
LR
VEGASON 51 V … 53 V 5
1.3 Adjustment
Each measuring distance is different, hence
each ultrasonic sensor must be given some
basic information on the application and the
environment.
E.g. you inform the sensor which level means
"empty" and which level "full". Beside this
"Empty and full adjustment" also a number of
other adjustments can be carried out with
VEGASON ultrasonic sensors.
The adjustment and parameter adjustment of
the ultrasonic sensors are hence carried out
with:
- the PC
- the signal conditioning instrument
VEGAMET 514 V or VEGAMET 514 V
- the detachable adjustment module
MINICOM
Product description - Adjustment
Adjustment with PC
The set-up and adjustment of the ultrasonic
sensors is generally made on the PC with the
adjustment program VVO (VEGA Visual Operating) under Windows®.
The program leads quickly through the adjustment and parameter adjustment via pictures, graphics and process visualizations.
2
2
Adjustment with PC on the digital signal and supply
line between the sensors and the signal conditioning
instrument VEGAMET or on the sensor itself (figure:
VEGASON 51 V)
The PC can be connected to any individual
position of the system or the signal line. It is
hence connected with the two-wire PC-interface converter VEGACONNECT 2 to the sensor, the signal line or to the signal conditioning instrument, but also with a standard cable
(RS232) directly to the processing system
VEGALOG.
The adjustment and parameter adjustment
data can be saved with the adjustment software on the PC and protected with passwords. If required the adjustments can be
transferred quickly to other sensors.
6 VEGASON 51 V … 53 V
Product description - Adjustment
2
……
The adjustment program recognizes the sensor type
and the place of the connection
Visualized input of a vessel linearization curve
2
1…15
VEGALOG
VEGALOG
571 CPU
571 EA
Adjustment with PC on the processing system
VEGALOG with standard cable RS 232 (on the
processing system up to 15 sensors can be operated
on one two-wire line)
2
……
1 … 15
VEGALOG
VEGALOG
571 CPU
571 EA
2
Adjustment on the digital signal and supply line to the
processing system VEGALOG 571 or directly on the
sensor
Adjustment with PC on signal conditioning instrument
VEGAMET 515 V (two sensors) or 514 V (one sensor)
VEGASON 51 V … 53 V 7
Product description - Adjustment
Adjustment with signal conditioning instrument VEGAMET
The ultrasonic sensors with digital output
signal can be operated beside the PC also
with the signal conditioning instrument
VEGAMET.
%
100
+
-
OK
ESC
CONNECT
2
1
on
514 Ex
6-key adjustment field on the instrument front of a
signal conditioning instrument VEGAMET
For adjustment the digital signal conditioning
instruments VEGAMET 514 V and 515 V are
provided with a 6-key adjustment field with
display. Here the parameter adjustment in
clear text can be made.
The adjustment structure corresponds to the
adjustment on the adjustment module
MINICOM.
Adjustment with adjustment module
MINICOM
The adjustment with the small
(3,2 cm x 6,7 cm) 6-key adjustment module
with display can be compared with that of the
signal conditioning instrument. It is possible
to carry out some sensor relevant adjustments directly on the meas. loop which can
naturally also be made with the signal conditioning instrument.
+
ESC
-
Tank 1
m (d)
12.345
Detachable adjustment module MINICOM
The adjustment module can be plugged into
and removed out of the ultrasonic sensor or
the optional external indicating instrument.
ESC
+
-
Tank 1
m (d)
OK
12.345
2
4 … 20 mA
ESC
+
-
Tank 1
m (d)
OK
12.345
4
OK
%
100
+
-
OK
ESC
CONNECT
2
1
on
514 Ex
Adjustment with the detachable adjustment module on
the ultrasonic sensor or on the external indicating
instrument VEGADIS 10.
8 VEGASON 51 V … 53 V
Types and versions
2 Types and versions
2.1 Survey
VEGASON series 50 sensors are a newly
developed generation of very compact, small
ultrasonic sensors. With very narrow space
requirements, they are designed for short
meas. distances (0 ... 15 m) and for standard
applications such as storage tanks, gauge
measurement and buffer tanks.
Due to the small housing dimensions and
process connections the compact sensors
monitor very price favourable your levels.
With the integral indication and the many
features of the "big brothers" of VEGASON
series 80, they open the advantages of an
ultrasonic measurement for applications
where the special advantages of a non-contact measurement were not applicable due to
price reasons.
VEGASON 50 ultrasonic sensors dominate
the two-wire technology perfectly. The supply
voltage and the digital output signal are
transmitted via one two-wire line to the connected signal conditioning instrument
VEGAMET or the processing system
VEGALOG.
VEGASON 51
with 11/2" thread
VEGASON 52
with 2" thread
VEGASON 53
DN 100 compression flange
(here on a standpipe) or for
mounting with holding strap
VEGASON 51 V … 53 V 9
Types and versions - Survey
Survey of the features
• Application in solids
and liquids
• Meas. range 0,25 … 15 m
Signal output
digital meas. signal • • •
Voltage supply
– two-wire technology (voltage
supply and signal output
via one two-wire line) • • –
Process connection
– G11/2 A; 11/2" NPT • – –
– G 2 ; 2" NPT – • –
– DN 100 compression flange – – •
Adjustment
– with PC and adjustment software • • •
– with adjustmet module in sensor • • •
– with adjustmet module in external
indicating instrument • • •
– with signal conditioning
instrument VEGAMET • • •
• Ex-approved in IEC or ATEX
classification EEx ia [ia] IIC T 6
• Integral indication of measured values
VEGASON …
51 V 52 V 53 V
Meas. range in m
– liquids 0,25 … 4 0,4 … 7 0,6 … 15
– solids 0,3 … 2 0,25…3,5 0,75 … 7
10 VEGASON 51 V … 53 V
Types and versions - Survey
Type code
The second figure of the type designation
e.g. VEGASON 5[1] differentiates the instruments acc. to process connection and meas.
range
VEGASON 51 V E X X . X X X X X (example)
G - Process connection G 11/2 A
N - Process connection 11/2 NPT
X - Process connection DN 100 PN (without compr. flange)
A - Process connection DN 100 PN (PPH compr. flange)
B - Process connection DN 100 PN (1.4571 compr. flange)
C - 1.4301 mounting loop
X - without indication
A - with integral indication
X - without MINICOM adjustment module
B - with MINICOM adjustment module (pluggable)
The figure e.g. VEGASON 51[V] characterizes the output signal:
V stands for a digital output signal.
A - 20 … 72 V DC; 20 … 250 V AC; 4 … 20 mA
B - 20 … 72 V DC; 20 … 250 V AC; 4 … 20 mA; HART
C -Two-wire (loop powered); 4 … 20 mA
D -Two-wire (loop powered); 4 … 20 mA; HART
®
®
E - Supply via signal conditioning instrument
P - 90 … 250 V AC (only in USA)
N - 20 … 36 V DC, 24 V AC (only in USA)
Z - Supply via signal conditioning instrument (only in USA)
U - in USA
X - outside USA
.X - without approval
EX.X - Ex approved CENELEC EEx ia IIC T6
EXS.X - StEx Zone 10
K - Analogue 0 … 20 mA output signal
(two-wire or four-wire technolgoy)
V - Digital output signal (two-wire technology)
Type 51: Meas. range 0,25 … 4 m
Type 52: Meas. range 0,4 … 7 m
Type 53: Meas. range 0,6 … 15 m
Meas. principle (SON for ultrasonics)
VEGASON 51 V … 53 V 11
Types and versions - Configuration of measuring systems
2.2 Configuration of measuring systems
A measuring system consists of a sensor
and a processing unit. The processing unit
(signal conditioning instrument VEGAMET or
processing system VEGALOG) processes
the level proportional digital meas. signals
and evaluates these in a number of processing routines.
The levels can then be provided as current,
voltage or switching signals and further processed, e.g. in a weir control.
On the following pages you see the different
instrument configurations called measuring
systems which are shown in the following
partly with a signal processing.
Meas. systems in two-wire technology:
• 2 sensors on one two-wire line
(page 13)
• 2 sensors in Ex on one two-wire line
(page 14)
• 15 sensors on one two-wire line
(page 15)
• 3 sensors in Ex on one two-wire line
(page 16)
Ex
Series 50 sensors require for operation in Exareas the Ex-separator VEGATRENN 548 V
Ex, providing intrinsically safe Ex-circuits.
Note to page 14 and 16:
2)
Sensor lines should be looped in screened cables.
It is suitable to earth the cable screens on both
ends. However it must be noted that no earth
compensation currents flow via the screens.
Earth compensation currents can be avoided with
earthing on both ends by connecting the cable
screen on one earth end (e.g. in the switching
cabinet) via a capacitor (e.g. 1 µF, 100 V) to the
earth potential.
Sensor lines leading to the same separator card,
can be looped together in one screened multiple
wire cable.
Sensor lines leading to other separator cards, must
be looped in separate, screened cables.
12 VEGASON 51 V … 53 V
Types and versions - Configuration of measuring systems
1 … 2 sensors on signal conditioning instrument VEGAMET 515 V
• Two-wire technology, supply from signal conditioning instrument. Output
signals and voltage supply via one two-wire line.
• Digital output signal, two sensors on one line.
• Measured value indication in sensor and in signal conditioning instrument.
• Optionally external indicating instrument.
(can be mounted up to 25 m separated from the sensor in Ex-area).
• Adjustment with PC, signal conditioning instrument or adjustment module
(can be plugged in sensor or in external indicating instrument).
• Max. resistance of the signal line 15 Ω per wire or 1000 m
cable length
VEGADIS 50
Screened line in case of electromagnetic interferences
4
2
2
VEGADIS 50
Current outputs
Voltage outputs
Relays
Digital connection
Fault signals
4
2
VEGACONNECT 2
VEGAMET
515V
Signal conditioning instrument VEGAMET 515 V in
housing type 505
1) Sensor lines should be looped in screened
cables. It is suitable to earth the cable
screens on both ends. However it must be
noted that no earth compensation currents
Processings see also product information
"Signal conditioning instruments series 500"
flow via the screens.
Earth compensation currents can be avoided
with earthing on both ends by connecting the
cable screen on one earth end (e.g. in the
switching cabinet) via a capacitor (e.g. 1 µF,
100 V) to the earth potential.
VEGASON 51 V … 53 V 13
Types and versions - Configuration of measuring systems
1 … 2 sensors in Ex-area via separator VEGA TRENN 548 V Ex on signal conditioning instrument VEGAMET 515 V
• Two-wire technology, supply from the signal conditioning instrument. Output
signals and voltage supply via one two-wire line (optionally with
VEGASON 53 four-wire technology)
• VEGASON 51 … 52: CENELEC EEx ia IIC T6
VEGASON 53: StEx Zone 10
• Digital output signal, two sensors on one line.
• Measured value indication in the sensor and in the signal conditioning in
strument.
• Optionally external indicating instrument
(can be mounted up to 25 m separated from the sensor in Ex-area).
• Adjustment with PC, the signal conditioning instrument or the adjustment
module (can be plugged into the sensor or the external indicating instru
ment).
• Max. resistance of the signal line 15 Ω per wire or 1000 m cable length note
the permissible values for capacitance and inductance at the connection
cable (see approval certificate of the separators)
VEGADIS 50
4
VEGADIS 50
Ex-area
Not Ex-area
Screened line in case of electromagnetic interferences
2
Current outputs
2
Voltage outputs
Relays
Digital wiring
Fault signals
4
2
VEGACONNECT 2
VEGAMET
VEGATRENN
515V
547
Signal conditioning instrument VEGAMET
515 V with Ex-separator VEGA TRENN
548 V Ex in housing type 506
Processings see also product information
"Signal conditioning instruments series 500"
14 VEGASON 51 V … 53 V
Types and versions - Configuration of measuring systems
15 sensors via one two-wire line on the processing system VEGALOG 571
• Two-wire technology, power supply and digital output signals via one twowire line from the processing system VEGALOG 571.
• 15 sensors on one two-wire line.
• Measured value indication integrated in the sensor.
• Optionally external indicating instrument
(can be mounted up to 25 m separated from the sensor in Ex-area).
• Adjustment with PC or adjustment module
(can be plugged into the sensor or external indicating instrument).
• Max. resistance of the signal line 15 Ω per wire or 1000 m cable length.
4
VEGADIS 50
4
4
Screened line in case of electromagnetic
interferences
2
2
2
2
2
2
VEGASON 51 … 53
(15 sensors per two-wire line
can be individually grouped)
1)
2
CPU
VEGALOG
VEGALOG
571 CPU
571 EV
Processing system VEGALOG 571
with input cards in 19"-rack. 15
sensors on one module card and
two-wire line
Processings see also product information
VEGACONNECT 2
Interface cable
RS 232
"Signal conditioning instruments series 500"
1) Sensor lines should be looped in screened
cables. It is suitable to earth the cable
screens on both ends. However it must be
noted that no earth compensation currents
flow via the screens.
Earth compensation currents can be avoided
with earthing on both ends by connecting the
cable screen on one earth end (e.g. in the
switching cabinet) via a capacitor (e.g. 1 µF,
100 V) to the earth potential.
Current outputs
Voltage outputs
Relays
Digital wiring
Fault signals
Connection to all Bussystems
Transistor outputs
VEGASON 51 V … 53 V 15
Types and versions - Configuration of measuring systems
3 sensors per two-wire line via separator VEGA TRENN 548 V Ex on the
processing system VEGALOG 571
• Two-wire technology, power supply and digital output signals via one twowire line from the separator.
• Three sensors on one two-wire line.
• Measured value indication integrated in the sensor.
• Optionally external indicating instrument
(can be mounted up to 25 m separated from the sensor in Ex-area).
• Adjustment with PC or adjustment module
(can be plugged in the sensor or external indicating instrument).
• Max. resistance of the signal line 7,5 Ω per wire or 1000 m cable length,
note the permissible values for capacitance and inductance of the connection cable (see also approval certificates of the separators).
VEGADIS 50
2
Ex-area
Not Ex-area
Screened line in case of electromagnetic
interferences
2
2
2
22
2
2)
(see page 12)
2
2
2
2
2
2
2
2
2
Processing system
CPU
VEGALOG 571
(19" module card)
VEGALOG
VEGALOG
VEGATRENN
571 CPU
VEGATRENN
571 EV
548
VEGACONNECT 2
VEGATRENN
VEGALOG
VEGATRENN
VEGATRENN
571 EV
548
548
548
548
Separator VEGATRENN 548V Ex
(max. 9 sensors per card)
Input card of VEGALOG 571
(max. 15 sensors per card)
Current and
voltage outputs
Digital wiring
Fault signals
Transistor outputs
Connection to all
Bus-systems
Relays
Interface cable RS 232
2
VEGASON 51 … 53
3 sensors per two-wire line, individual
2
grouping
16 VEGASON 51 V … 53 V
Technical data
3 Technical data
3.1 Data
Type 51… 52… 53…
Power supply
Supply voltage from signal conditioning instrument VEGAMET or
Current consumption max 22,5 mA
Power consumption max. 80 mW 0,45 VA
Meas. range (relating to the transducer diaphragm)
Liquid 0,25 … 4 m 0,4 … 7 m 0,6 … 15 m
Solid 0,30 … 2 m 0,5 … 3,5 m 0,75 … 7 m
Output signal
Digital meas. signal (VBUS)
Adjustment
- PC with adjustment software software VEGA Visual Operating
- adjustment module MINICOM
processing system VEGALOG 571 (max. 36 V DC)
fuse 0,5 A (slow-blow)
Accuracy (type, values under reference conditions)
1)
Linearity error after adjustment < 0,1 % (relating to max. meas. range)
Average temperature error of sensor
electronics < 0,03 %/10 K of meas. range
Resolution 1 mm
Characteristics
Min. span
(between empty and full adjustment) > 10 mm (recommended > 50 mm)
Ultrasonic frequency 70 kHz 55 kHz 38 kHz
Meas. intervals 1,0 s 1,0 s 0,6 s
Beam angle 5,5° 5,5° 3°
(at -3 dB emitted power)
1) Reference conditions acc. to IEC 770, e.g.:
Temperature: 18 ... 30°C
etc.
VEGASON 51 V … 53 V 17
Technical data
Ambient conditions
max. vessel pressure (gauge pressure)
- VEGASON 51 and 52 3 bar
- VEGASON 53 2,5 bar
Ambient temperature
- sensor (electronics) -20°C … +60°C
- process (transducer) -20°C … +80°C (StEx: -20°C … +75°C)
- storage and transport temperature -40°C … +80°C
Protection
- sensor IP 67
- transducer, process IP 68
Protection class II
Overvoltage category III
Ex-technical data (note approval documents)
Classification ia (intrinsically safe in conjunction with a safety
barrier or separator)
Temperature class (permissible ambient
temperature on transducer when used
in Ex-areas)
- T6 45°C
- T5 60°C
- T4 60°C
- T3 60°C
Ex-approved in category or zone
- EC-type approval Zone 1 (II 2 G); Type 53: Zone 21 (II 2 D)
- conformity certificate Zone 1; Type 53: Zone 10
Classification EEx ia IIC T6
Materials
Housing PBT (Valox)
Transducer, process thread PVDF
Compression flange PP or 1.4571
Transducer diaphragm (type 53) 1.4571
Weights (incl. transducer)
- VEGASON 51 1,2 kg
- VEGASON 52 1,6 kg
- VEGASON 53 2,3 kg
18 VEGASON 51 V … 53 V
Technical data
Process connections
VEGASON 51 G 11/2 A, 11/2" NPT
VEGASON 52 G 2 A, 2" NPT
VEGASON 53 DN 100 compression flange
Connection lines
Two-wire sensors
- supply and voltage via one two-wire line
line resistance max. 15 Ω per wire or 1000 m cable length
Cross-section area of conductor generally 2,5 mm
Earth connection max. 4 mm
2
2
Cable entry 2 x M20 x 1,5 (cable diameter 5 … 9 mm)
CE-Conformity
VEGASON series 50 ultrasonic sensors meet the protective regulations of EMVG (89/336/
EWG) and NSR (73/23/EWG). The conformity has been judged acc. to the following standards:
EMVG Emission EN 50 081 - 1: 1993
Susceptibility EN 50 082 - 1: 1995
NSR EN 61 010 - 1: 1993
Outputs and processinds
Display indication
Indication optionally integral, scalable analogue and digital
Signal output
Signal output digital output signal in two-wire technology
Two-wire technololy:
The digital output signal (meas. signal) is modulated to the power supply and processed in
the signal conditioning instrument or in the processing system.
VEGASON 51 V … 53 V 19
measured value indication
optionally external measured value indication
powered by the sensor which can be mounted
up to 25 m from sensor
(VBUS)
Technical data - Approvals
3.2 Approvals
When using ultrasonic sensors in Ex-areas
the instruments must be suitable and approved for these explosion zones and applications. For the use on ships special type
approval certificates are available.
In hazardous areas (due to gases, vapours,
fog and dusts) only appropriately approved
instruments must be used.
The suitability is checked by the approval
authorities and is certified in approval documents.
VEGASON 51 V Ex and VEGASON 52 V Ex
sensors must be powered for the use in Exzone from one intrinsically safe circuit. This is
ensured by the separator VEGATRENN
548 V Ex.
The separator provides intrinsically (ia) circuits. The resistance of the signal line must
not exceed 15 Ω per wire.
VEGASON 51 V Ex and VEGASON 52 V Ex
sensors are approved for Ex-zone 1.
VEGASON 53 V ExS is approved for Exzone 10 or zone 21.
As proof for the Ex-approval appropriate
confirmity certificates and type approval
certificates of the approval authorities are
attached to the sensors.
Test and approval authorities
VEGASON ultrasonic sensors are tested and
approved by the following monitoring, test
and approval authorities:
- PTB
(Physikalisch Technische Bundesanstalt Physical Technical Approval Authority)
- FM
(Factory Mutual Research)
- ABS
(American Bureau of Shipping)
- LRS
(Lloyds Register of Shipping)
- GL
(German Lloyd)
- CSA
(Canadian Standards Association)
Please note the attached approval documents when you want to use a sensor in Exareas.
20 VEGASON 51 V … 53 V
Technical data - Dimensions
3.3 Dimensions
VEGASON 51
VEGASON 52
2 x M20x1,5
Thread G 11/2 A or 11/2" NPT
Reference pane
Min.-distance
to the product
Thread G 2 A or 2" NPT
SW 60
Reference pane
Min.-distance
to the product
VEGASON 51 V … 53 V 21
Technical data - Dimensions
VEGASON 53
ø12
Mounting loop
95
247
193
120
12
M8x10
ø148
ø158
External indicating instrument VEGADIS 50
38
ø5
82
ø12
152
suitable for compression
flange DN 100
Min.-distance
to the product
0,6 m
118
108
135
Pg 13,5
M20 x 1,5
Mounting on carrier rail 35 x 7,5 acc. to EN 50 022 or flat
screwed
85
Note:
The cable diameter of the connection cable
must be 5 … 9 mm.
The seal effect of the cable entry is otherwise
not ensured.
22 VEGASON 51 V … 53 V
Mounting and installation - General installation instructions
4 Mounting and installation
4.1 General installation instructions
Measuring range
You select your instrument beside other criteria according to the required measuring
range. The reference panes for the min. and
max. distance to the product or the solid is
either the transducer surface (diaphragm) or
on instruments with flange version the instru-
ment flange. Note the information for the reference panes in chapter "Dimensions". The
max. filling is dependent on the required min.
distance of the instrument used (0,25 m to
0,75 m) and the installation place of the instrument or the transducer.
Type 51
Min.
distance
0,25 m 0,4 m
4 m
(type 51)
full
1m
15 m (type 53)
empty
Min.
distance
0,75 m
Type 53 Type 52
Reference pane
Meas. range
Min. distance, max. distance and meas. range (example VEGASON 51, 52 and 53)
Min.
distance
7 m (type 52)
VEGASON 51 V … 53 V 23
Mounting and installation - General installation instructions
Beam angle and false echoes
The ultrasonic impulses are focussed by the
transducer. The impulses leave the transducer in conical form similar to the beam
pattern of a spotlight. The beam angle is 5,5°
(type 51/52) or 3° (type 53) at -3 dB emitted
power.
Any object in this beam angle causes a false
echo. Within the first few metres of the beam
angle, tubes, struts or other installations
cause strong false echoes. In a distance of
2 m the false echo of a strut has 9-times more
amplitude than at a distance of 6 m.
If possible, provide a vertical directing of the
sensor axis to the product surface and avoid
if possible, struts within the 100%-beam
angle, e.g. by tubes and struts.
Meas. distance
0 m
4 m
7 m
Meas. distance
0 m
VEGASON 51/52
0,4
0
VEGASON 53
0,4
5,5°
12°
50 %
Emitted power
100 %
Emitted power
1,21,2
m
3°
8°
50 %
Emitted power
Emitted power
100 %
15 m
0,4
1,2
0,4
0
m
1,2
24 VEGASON 51 V … 53 V
Mounting and installation - Measurement of liquids
4.2 Measurement of liquids
Flat vessel tops
On flat vessels the mounting is mainly made
on a very short DIN-socket piece. Reference
pane on flange versions is the instrument
flange. The transducer should protrude out of
the flange pipe.
Reference pane
You can also mount the sensors with 11/2" or
2" thread to short socket pieces.
< 60 mm
Reference pane
< 60 mm
Flange version on very short DIN-socket piece
Min.
distance
Very suitable is the mounting directly on the
vessel top. A round opening on the vessel is
sufficient to fasten VEGASON 53 sensor with
a compression flange.
Reference pane
Mounting on short 11/2" or 2" socket piece
Flange version (compression flange) on flat vessel
top
VEGASON 51 V … 53 V 25
Mounting and installation - Measurement of liquids
Dished tank ends
On dished tank ends please do not mount
the instrument in the centre but approx. 1/2
vessel radius from the centre. Dished tank
ends can act for the ultrasonic pulses as
paraboloidal refelctors. If the transducer is
placed in the "focus" of the parabolic tank
end, the transducer receives amplified false
echoes. Hence the transducer should be
mounted outside the "focus". Parabolic amplified false echoes are hence avoided.
Reference pane
< 60 mm
1
/2 vessel radius
Open vessels
On open vessels the use of the instruments
on a mounting lever is recommended. Mount
the low-weight sensor to a mounting lever.
Reference pane
Min. meas.
distance
Min. meas.
distance
Flange on dished vessel ends
Open vessels
< 60 mm
Reference pane
1
/2 vessel radius
Mounting boss on a dished tank end
26 VEGASON 51 V … 53 V
,,
Mounting and installation - Measurement of liquids
Pump shaft
Narrow shafts and shaft openings (vessel
openings) with very rough walls and shoulders aggravate an ultrasonic measurement
due to strong false echoes.
Shaft and vessel openings
Narrow, very rough shaft, well and vessel
openings can be overcome by a socket
piece as described under "4.4 Socket extensions" (left lower half of the figure).
see "4.4 Socket extension"
⊕100 mm
,,,,,,,,,,,
min.
distance
Socket piece
Shaft
In completely narrow shafts you can realize
very good meas. results with a meas. pipe,
see figure. The meas. pipe used must have
smooth walls inside (e.g. PE-sewage pipe)
and at least a diameter of ⊕ 100 mm.
This coordination works without problems as
long as the inside of the meas. pipe has no
build-up (cleaning). Also check the use of
hydrostatic pressure transmitters or capacitive electrodes.
Meas. range
Shaft pump
Meas. tube
Shaft pump
Socket piece or meas. tube on the example of a shaft
VEGASON 51 V … 53 V 27
Loading...