VEGA SCAN850 User Manual

Operating Instructions

VEGASCAN 850

Level and Pressure

Contents

Safety information ........................................................................ 2

Note Ex area ................................................................................ 2

1 Product description

1.1 Function ................................................................................. 4

1.2 Application features ............................................................. 6

1.3 Adjustment ............................................................................ 6

2 Types and versions

2.1 Type overview, VEGASCAN 850 ........................................ 8

2.2 Type overview, sensors....................................................... 8

2.3 Type code, VEGASCAN 850............................................. 11

2.4 Type code, sensors ........................................................... 12

2.5 Approvals ........................................................................... 13

2.6 Configuration of measuring systems ............................... 13

3 Technical data

3.1 Data ..................................................................................... 18

3.2 Dimensions ......................................................................... 25

Contents

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.

2 VEGASCAN 850

Note Ex area

Please note the approval documents (yellow
binder), and especially the included safety
data sheet.

Contents

4 Mounting and installation

4.1 Mounting VEGASON 54 … 56 .......................................... 34

4.2 General installation instructions ........................................ 36

4.3 Measurement of liquids ..................................................... 39

4.4 Measurement of solids ...................................................... 42

4.5 Socket extensions ............................................................. 44

4.6 Flow measurement ............................................................. 46

4.7 False echoes ...................................................................... 47

4.8 Incorrect mounting ............................................................. 49

5 Electrical connection

5.1 Connection, connection cable and shielding ................... 53

5.2 Connection of the sensor .................................................. 56

5.3 Connection of the external indicating instrument

VEGADIS 50 ....................................................................... 57

5.4 Connection of the sensors to VEGASCAN 850 ............... 58

5.5 Signal output/Interface connection ................................... 59

5.6 Connection of the PC to VEGASCAN 850 ........................ 59

6 Setup

6.1 Adjustment methods .......................................................... 60

6.2 Adjustment with the PC ...................................................... 61

6.3 Sensor adjustment with the adjustment

module MINICOM............................................................... 86

7 Diagnostics

7.1 Simulation ............................................................................ 90

7.2 Error codes ........................................................................ 90

VEGASCAN 850 3

1 Product description

1.1 Function

Continuous level measurement with ultrasonic
sensors is based on the running time meas­urement of ultrasonic pulses.

VEGASON series 51 … 56 sensors are a
newly developed generation of extremely
compact ultrasonic sensors for level meas­urement. They were especially developed for
liquids (51 ... 53) and for solids and larger
measuring ranges (54 ... 56).

Due to the small housing dimensions and
process fittings, the compact sensors are a
very reasonable solution for your level meas­urement applications. With the integrated
display and a special sensor intelligence, in
conjunction with large measuring ranges,
they can be used for applications in which
the advantages of non-contact measurement
could never before be realized.

As output and measuring signal, the sensors
produce a digital output signal which is proc­essed and evaluated in VEGASCAN 850.
VEGASCAN 850 then outputs the processed
measured values as a digital communication
protocol.

Measuring principle

Piezoceramic high-performance transducers
emit focused ultrasonic pulses which are
reflected by the product surface. The meas­urement electronics prepares a precise im­age of the environment out of the reflected
ultrasonic pulses. The transducers work both
as transmitter and receiver. As receiver, the
transducers are high-sensitivity piezo micro­phones.

Product description

Meas. dis­tance

emission - reflection - reception

The measurement electronics precisely cal­culates the distance between transducer and
medium from the speed of sound and the
measured running time of the emitted sound
impulse. The distance is then converted into
a level-proportional signal, and in conjunction
with the sensor parameter settings, made
available as precise, calibrated level value.

Since the speed of sound is subject to tem­perature influence, the transducer also con­tinuously detects the ambient temperature,
so that the level is precisely measured even
in case of varying ambient temperature.

4 VEGASCAN 850

Product description

Output signal

The level-proportional measuring signal of the
sensors is received, processed and
outputted digitally throughout. VEGASCAN
850 reads in the digital sensor measured
values permanently and processes the indi­vidual levels according to the user’s selected
options. Depending on the version of
VEGASCAN, max. 15 sensors can be con­nected to one screened two-wire cable or 30
sensors on two screened two-wire cables.
The two-wire cable transfers beside the dig­ital level signal and adjustment signals also
the supply voltage of 24 V.

The sensor measured values can be proc­essed and outputted in VEGASCAN as levels
in percent, volume or mass units. In addition,
linked process tasks such as scaling, lineari­sation, differential generation, addition, ten­dency processing or limit value processing
can be selected individually. As a result,
VEGASCAN can carry out - decentralised
and without costly programming - the entire
measurement-related arithmetic.

The levels and their processed results are
then outputted in the following field bus pro­tocols and interfaces depending on the or­dered version of VEGASCAN 850.

The digital processing of the measured si­gnal ensures an accuracy that an analogue
measuring signal could never reach, as the
digital signal is always transferred without
error right down to the last bit and decimal
point position.

Varying line resistance or small leakage cur­rents do not influence the accuracy (digital
technology). The digital signal is always un­ambiguous.

Display of measured values

As an option, the series 50 ultrasonic sensors
can be equipped with an indicating instru­ment for direct, local level survey. The indi­cating instrument shows the precise level by
means of the analogue bar graph and the
digital number value. In addition to the indica­tion in the sensor, you can have the level
displayed by the VEGADIS 50 external indi­cating instrument at a distance of up to
25 m from the sensor. The external display of
measured values operates, like the inte­grated display, independently of the output
signal, can be modified through individual
parameter settings, and is connected to and
powered by the sensor.

Protocol Interface

Siemens 3964 - RS 232

VEGA-ASCII - RS 232

Modbus - RS 232

Profibus DP - RS 485

Profibus FMS - RS 485

VEGASCAN 850 5

- RS 422

- RS 485

- TTY

- RS 422

- RS 485

- TTY

- RS 422

- RS 485

- TTY

Product description

1.2 Application features

Applications

• Level measurement of all liquids

• Level measurement of solids (only short

measuring distances) such as e.g. coal,
ore, stones, crushed rocks, cement,
gravel, sand, sugar, salt, cereals, flour,
granules, powder, dusts, sawdust,
sawings.

• Flow measurement on various flumes

• Gauge measurement, distance measure-

ment, object monitoring and conveyor belt
monitoring

Two-wire technology

• Supply and output signal on one two-wire
cable (loop powered).

• Output signal and signal processing com­pletely digital.

Rugged and precise

• Measurement unaffected by substance
properties such as density, conductivity,
dielectric constant…

• Suitable for corrosive substances

• Measuring range 0.25 m … 70 m.

• Precise through digital processing and

transmission of measured values.

Means of adjustment

• With adjustment software VEGA Visual
Operating (VVO) on the PC

• With detachable adjustment module
MINICOM

• With VEGAMET signal conditioning instru­ment.

1.3 Adjustment

Each measuring situation is unique. For that
reason, every ultrasonic sensor needs some
basic information on the application and the
environment, e.g. an empty vessel profile is
important for a reliable measurement. Beside
this, many other settings and adjustments
are possible on VEGASON ultrasonic sen­sors.

The adjustment and parameter setting of
VEGASCAN 850 and ultrasonic sensors are
carried out with the PC and the adjustment
program VVO (VEGA Visual Operating).

Only sensor-relevant settings can be carried
out with the adjustment module MINICOM.

Adjustment with PC

The program leads quickly through the ad­justment and parameter setting by means of
pictures, graphics and process
visualisations.

The PC is connected with a standard cable
(RS 232) directly to VEGASCAN 850.

The adjustment and parameter data of the
connected sensors and the configuration of
VEGASCAN can be saved with the adjust­ment software on the PC and can be pro­tected by passwords. On request, the
sensor adjustments can be quickly trans­ferred to other sensors.

Display of measured value

• Display of measured value integrated in
sensor.

• Optional display module separated from
sensor.

Process fittings

• G 1 A, DN 50, DN 80, DN 200, DN 250

• G 11/2A, 11/2“ NPT

• G 2 A, 2“ NPT

• Compression flange DN 100, ANSI 4“

Approvals

• CENELEC, ATEX, PTB, FM, CSA, ABS,
LRS, GL, LR, FCC

6 VEGASCAN 850

Product description

Adjustment with adjustment module
MINICOM

With the small (3.2 cm x 6.7 cm) 6-key ad­justment module with display, the adjustment
can be carried out in clear text dialogue.

The adjustment program recognises the sensor type
and the location of the connection

Visualised input of a vessel linearisation curve

2

P

...

C

8
5
0

BA

on

1...15

Tank 1
m (d)

12.345

ESC

+

-

OK

Detachable adjustment module. The adjustment
module can be plugged into the ultrasonic sensor or
onto the external indicating instrument VEGADIS 50.

The adjustment module can be plugged into
the ultrasonic sensor or into the optional,
external indicating instrument. Unauthorised
sensor adjustments can be prevented by
removing the adjustment module.

Adjustment with the PC on VEGASCAN 850 with the
standard cable RS 232 (with VEGASCAN up to 15
sensors can be operated on one two-wire cable)

VEGASCAN 850 7

2 Types and versions

Types and versions

2.1 T ype overview, VEGASCAN 850

Either 15 or 30 series 50 ultrasonic sensors
can be connected to VEGASCAN 850. The
measured data are outputted in the ordered
field bus protocol by the ordered interface.
The field bus protocol and interface type are
determined by the ordered version of VEGA­SCAN. The type label of VEGASCAN contains
the bus protocol and the interface type (see
chapter "2.3 Type code of VEGASCAN 850“).

Optional field bus protocols:

- Siemens 3964

- Modbus

- VEGA-ASCII

- Profibus DP

- Profibus FMS

Optional interface types:

- RS 232

- RS 422

- RS 485

- TTY

2.2 T ype overview, sensors

VEGASON series 51 … 56 sensors are a
newly developed generation of extremely
compact ultrasonic sensors for large measur­ing ranges (VEGASON 54 ... 56) or for
shorter measuring ranges (VEGASON
51 … 53).

Due to the small housing dimensions and
process fittings, the compact sensors do
your level monitoring inconspicuously, and
above all, at reasonable cost.

Because of price, reliability and easy han­dling, ultrasonic level measurement can be
now used in applications in which non-con­tact level measurement could never be used
before.

VEGASON 50 ultrasonic sensors utilise two­wire technology perfectly. The supply voltage
and the digital output signals of 15 sensors
are transmitted between VEGASCAN 850
and the sensors via one two-wire cable.

Swivelling holders allow quick alignment of
the transducer to the product and solid sur­face. Mounting is simplified by the option of
separating the sensor electronics from the
transducer. The sensor electronics can be
mounted at a distance of 300 m from the
transducer. It is then possible to mount the
transducer in environments with an ambient
temperature up to 150°C (type 56).

8 VEGASCAN 850

Types and versions

Common features

• Application to solids and liquids.

• Measuring range 0.25 m … 70 m.

• Ex approved in Zone 1 (IEC) and Zone 1

(ATEX) classification EEx ia [ia] IIC T6.

• Display module integrated in the sensor or
in the external indicating instrument sepa­rated up to 25 m from the sensor.

VEGASON 51

VEGASON 52

VEGASON 54

Version A Version B Version C Version D

VEGASON 55

Version A Version B Version C Version D

VEGASON 56

VEGASON 53

Version A Version B Version C Version D

VEGASCAN 850 9

Types and versions

Short overview of sensor features

• Use in solids and liquids.

• Measuring range 0.25 … 70 m.

• Ex approved in Zone 1 (IEC) or Zone 1 (ATEX) classification.

• Integrated display of measured values.

VEGASON 51V 52V 53V 54V 55V 56V

Signal output

digital meas. signal ••••••

Power supply

- two-wire technology ••••••

Process fitting

- G 1 A, 1“ NPT –––•••

-G 11/2 A, 11/2“ NPT •–––––

- G 2 A, 2“ NPT –•––––

- DN 100 compr. flange ––•–––

- DN 50 –––•••

- DN 80 –––•••

- DN 200 –––•••

- DN 250 –––•••

Adjustment

- with PC and adjust­ment software ••••••

- with adjustment mod­ule in sensor ••••••

- with adjustment mod­ule in ext. indicating
instrument ••••••

Meas. range in m

- liquid 0.25 … 4 0.4 … 7 0.6 … 15 1 … 25 0.8 … 45 1.4 … 70

- solid 0.3 … 2 0.5 … 3.5 0.75 … 71 … 25 0.8 … 45 1.4 … 70

10 VEGASCAN 850

Types and versions

2.3 T ype code, VEGASCAN 850

VEGASCAN 850 X X X X X

K - Cable entry M20 x 1.5
N - Cable entry

A - 230 V AC power supply
B - 115 V AC power supply

1 - RS 232 interface
2 - RS 422 interface
3 - RS 485 interface
4 - TTY interface

A - Siemens S5 (3964 R procedure with RK 512)
B - Modbus (RTU and ASCII)
S - Profibus FMS
P - Profibus DP
N - VEGA-ASCII

B - up to 15 sensors can be connected
C - up to 30 sensors can be connected

1

/2“ NPT

VEGASCAN 850 11

2.4 T ype code, sensors

Types and versions

VEGASON 54 V EX.XX X X X X X X X

K - Plastic housing PBT, M20 x 1.5 cable entry
N - Plastic housing PBT,

1

/2“ NPT cable entry

A - Aluminium housing, M20 x 1.5 cable entry

G - Process fitting G 11/2 A
N - Process fitting 11/2“ NPT
X - Process fitting DN 100 PN (without sleeve nut)
A - Process fitting DN 100 PN (PPH compression flange)
B - Process fitting DN 100 PN (1.4571 compression flange)
C - 1.4301 mounting strap
FEP - Version A, flange DN 200 (PP)
FFA - Version A, flange DN 200 (Aluminium)
SAS - Version B, flange swivelling holder DN 50
SBS - Version B, flange swivelling holder DN 80
GAS - Version C, flange swivelling holder DN 50
GBS - Version C, flange swivelling holder DN 80
RGS - Thread G 1 A
YYY - Other process fittings

X - without display
A - with integral display

X - without adjustment module MINICOM
B - with adjustment module MINICOM (integrated)

A - 20 … 72 V DC; 20 … 250 V AC; 4 … 20 mA (four-wire)
B - 20 … 72 V DC; 20 … 250 V AC; 4 … 20 mA, HART

®

(four-wire)
E - Power supply via signal conditioning instrument
G - Segment coupler for Profibus PA
P - 90 … 250 V AC (only in USA)
N - 20 … 36 V DC, 24 V AC (only in USA)
Z - Power supply via signal conditioning instr. (only in USA)

.X - without approval
EX.X - Ex approved CENELEC EEx ia IIC T6
EXS.X - StEx Zone 10

K - Analogue 4 … 20 mA output signal (two-wire or four-wire

technology)
V - Digital output signal (two-wire technology - VBUS)
P - Digital output signal (two-wire technology - Profibus)

Type 51 - Meas. range 0.25 … 4 m
Type 52 - Meas. range 0.4 … 7 m
Type 53 - Meas. range 0.6 … 15 m
Type 54 - Meas. range 1.0 … 25 m
Type 55 - Meas. range 0.8 … 45 m
Type 56 - Meas. range 1.6 … 70 m

Meas. technology (SON for ultrasonic)

12 VEGASCAN 850

Types and versions

2.5 Approvals

When using ultrasonic 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.

VEGASON 50 ultrasonic sensors are ap­proved for Ex zone 1, 10, 11, 21 and 22.
Please note the attached approval docu­ments when using a sensor in Ex area.

2.6 Configuration of measuring systems

A measuring system consists of one to 15
(30) sensors and a VEGASCAN 850. The
processing unit (VEGASCAN 850 signal
conditioning instrument) evaluates the level­proportional, digital measuring signals in a
number of processing routines and outputs
the levels as process bus signal.

Beside the output of the levels in percent,
cubic meters and other physical units, the
levels can be also processed by linked
processing algorithms. Scaling, linearisation,
calculation of linearisation curves, differential
generation, addition or tendency processing
are implemented in VEGASCAN 850 as intrin­sic processing routines and are easily ac­cessible via the menu.

On the following pages you will find three
instrument configurations (measuring sys­tems) consisting of sensor(s) and process­ing unit.

Note:

It is possible to operate up to 15 sensors on
one two-wire cable, see following page (con­figuration A). However, it would be more
suitable to plan the measuring system in
such a way that max. five sensors are oper­ated on one two-wire cable. For this reason,
VEGASCAN is equipped with three clamping
positions for a VBUS input. The sensor ar­rangement can either be made linearly (con­figuration B) or radially (configuration C).

VEGASCAN 850 13

Types and versions

Configuration A
Up to 15 sensors via one two-wire cable on VEGASCAN 850

• Two-wire technology, 15 sensors with power supply and digital output signals via one two­wire cable on VEGASCAN 850 possible. However, it is better to wire in groups of five as in
configuration B and C.

2

1)

Sensor cables should be screened. Grounding of

4

2

2

the cable screens at both ends is recommended.
However make sure that no earth compensation
currents flow via the screens (see chapter "5.1
Connection, connection cable and screening“).
Earth compensation currents can be avoided by
potential equalisation lines or if the cable screen is
grounded at both ends - by connecting one end via
a capacitor (e.g. 0.1 µF; 250 V) to earth potential.

4

2

2

VEGACONNECT 2

4

2

14 VEGASCAN 850

Types and versions

• Display of measured value integrated in sensor.

• Optional external indicating instrument (can be mounted up to 25 m separated from the

sensor, also in Ex area).

• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or the
external indicating instrument VEGADIS 50).

• Max. resistance of the signal cable 10 W per wire or 1000 m cable length.

screened sensor cable 1)

2

4

2

2

2)

4

2

2

4

2

2)

Sensor cables leading to the same VBUS input can
be looped together in a screened multiple wire
cable.
Sensor cables leading to another VBUS connection
must be looped in a separate, screened cable.

VEGASCAN 850 15

Types and versions

Configuration B
VEGASCAN 850 B; 15 sensors can be connected

• Two-wire technology, 3 x 5 sensors grouped in line on three two-wire cables.

• Display of measured value integrated in sensor.

• Optional external indicating instrument (can be mounted up to 25 m separated from sensor

also in Ex area).

• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or the
external indicating instrument VEGADIS 50).

• Max. resistance of the signal cable 15 W per wire or 1000 m cable length.

PC

8
5
0

BA

on

2

2

2

16 VEGASCAN 850

Types and versions

Configuration C
VEGASCAN 850 B; 15 sensors can be connected

• Two-wire technology, 3 x 5 sensors grouped radially on three two-wire cables.

• Display of measured values integrated in the sensor.

• Optional external indicating instrument (can be mounted up to 25 m separated from the

sensor also in Ex area).

• Adjustment with PC or adjustment module MINICOM (can be plugged into the sensor or
external indicating instrument VEGADIS 50).

• Max. resistance of the signal cable 15 W per wire or 1000 m cable length.

PC

8
5
0

BA

on

2

4

2

2

2

4

2

4

2

VEGASCAN 850 17

Technical data

3 Technical data

3.1 Data

Power supply

Supply voltage

- VEGASCAN 850 230 V AC, 50/60 Hz

- sensors sensor power supply is provided via the

Min. sensor voltage 17 V
Power consumption

- VEGASCAN 850 max. 70 VA

- VEGASON 51 … 53 81 mW

- VEGASON 54 … 56 max. 1.5 W peak power

Current consumption

- VEGASON 51 … 53 6 mA

- VEGASON 54 … 56 90 mA

Resistance of the signal cable
per measuring data input dependent on the number of connected sensors

115 V AC, 50/60 Hz

VEGASCAN 850
processing system with max.
1 … 15 sensors per two-wire cable

approx. 1 W continuous power

(power) per connection cable, see following
diagram, however max. 15 W per wire
and max. 1000 m cable length

1000 m

900

840

800
700

630

600
500
400
300
200

Length of the connection cable

100

0

0 5 10 15

Total power of all sensors on one

2

1,0 mm

2

0,75 mm

two-wire cable

2,5 mm

1,5 mm

2

2

23W max

20

Note:

If longer signal cables are used, it is a good idea to distribute the sensors over two or three
inputs.

18 VEGASCAN 850

Technical data

Measuring range

(reference plane is the transducer end. On VEGASON 54 … 56 in version A the lower flange
side is the reference plane.)

VEGASON 51

- liquids 0.25 … 4 m

- solids 0.3 … 2 m

VEGASON 52

- liquids 0.4 … 7 m

- solids 0.5 … 3.5 m

VEGASON 53

- liquids 0.6 … 15 m

- solids 0.75 … 7 m
VEGASON 54 in general 1.0 … 25 m
VEGASON 55 in general 0.8 … 45 m
VEGASON 56

- version A 1.8 … 70 m

- version B … D 1.4 … 70 m

Output signal of the sensors

Signal output of the sensors digital output signal in two-wire technology

(VBUS): the digital output signal (meas.
signal) is superimposed power supply of
VEGASCAN and further processed in
VEGASCAN

Meas. data inputs on VEGASCAN

Number of inputs 3 meas. data inputs on VEGASCAN 850B

6 meas. data inputs on VEGASCAN 850C
Supply voltage from VEGASCAN approx. 24 V
Output current per meas. data input max. 1 A
Output power

per meas. data input max. 23 W (15 W continuous power)

Resistance of the signal cable max. 15 W per wire or

max. 1000 m cable length
Integration time 0 … 999 seconds (selectable in the sensor)

0 … 600 seconds (selectable in VEGASCAN)

Two-wire technology: The digital output signal (meas. signal) and the power supply are led
through one cable.

VEGASCAN 850 19

Technical data

Output signal of VEGASCAN (depending on the ordered instrument version)

Siemens 3964

- interfaces RS 232, RS 422, RS 485, TTY

- transmission rates 110 … 19200 baud

- transmission mode serially asynchronous, half-duplex

- coding system 8 bit binary

- number of bits 1 start , 8 data, 1 parity, 1 stop bit

- parity NONE, ODD, EVEN

- backup BCC

VEGA-ASCII

- interfaces RS 232, RS 422, RS 485, TTY

- transmission rates 300 … 38400 baud

- transmission mode serially asynchronous, half-duplex

- coding system 8 bits ASCII

- number of bits 1 start, 8 (7) data, 1 parity, 1 stop bit

- parity NONE, ODD, EVEN

- backup none

Modbus

- interfaces RS 232, RS 422, RS 485, TTY

- transmission rates 300 … 38400 baud

- transmission mode serially asynchronous, half-duplex

- coding system
RTU-Mode 1 start, 8 data, 1 (0) parity, 1 stop bit
ASCII-Mode 1 start, 8 (7) data, 1 (0) parity, 1 stop bit

- parity NONE, ODD, EVEN

- backup
RTU-Mode CRC-16
ASCII-Mode LRC

Profibus DP and FMS

- interfaces RS 485

- transmission rates
Profibus DP 9.6 … 12000 kbaud
Profibus FMS 9.6 … 500 kbaud

- transmission mode serially asynchronous, half-duplex, slip-free

synchronisation

- coding system NRZ code

- backup Haming distance HD = 4

Galvanic separation galvanic separation between sensor current

circuit, power supply, output signal (Siemens
3964, Modbus etc.) and RS 232 PC adjustment
interface

- reference voltage up to 500 V

- isolation resistance 4 kV

20 VEGASCAN 850

Technical data

Display of measured value (optional)

Liquid-crystal display

- in sensor scalable output of measured values as graph
and digital value

- powered externally by the sensor scalable output of measured values as graph
and digital value. Display of measured values
can be mounted up to 25 m separated
from the sensor.

Adjustment

- PC with adjustment software VEGA Visual Operating via RS 232 interface (max. 15 m

cable length)

- adjustment module MINICOM (only the individual sensor is adjustable)

Characteristics

1)

(typical values under reference conditions, all statements relate to the nominal measuring
range)

Min. span

(between empty and full adjustment) > 20 mm (recommended > 50 mm)

Ultrasonic frequency (at 20°C)

- VEGASON 51 70 kHz

- VEGASON 52 55 kHz

- VEGASON 53 38 kHz

- VEGASON 54 30 kHz

- VEGASON 55 18 kHz

- VEGASON 56 10 kHz

Meas. intervals

- VEGASON 51 1.0 s

- VEGASON 52 1.0 s

- VEGASON 53 0.6 s

- VEGASON 54 1.0 s

- VEGASON 55 1.5 s

- VEGASON 56 2.0 s

Beam angle at -3 dB emitted power

- VEGASON 51 5.5°

- VEGASON 52 5.5°

- VEGASON 53 3°

- VEGASON 54 4°

- VEGASON 55 5°

- VEGASON 56 6°

Influence of the process temperature 1.8 %/10 K, however is compensated by a

dynamic temperature detection integrated
in the transducer

Influence of the process pressure negligible within the permitted sensor pressures
Adjustment time

2)

- VEGASON 51 … 54 > 2 s (depending on the parameter setting)

- VEGASON 55, 56 > 4 s (depending on the parameter setting)

1)

Similar to DIN 16 086, reference conditions acc. to IEC 770;
temperature 15°C … 35°C; moisture 45 % … 75 %; pressure 860 mbar … 1060 mbar

2)

The adjustment time is the time required by the sensors for the correct output of the level (with max. 10 %
deviation) after a sudden level change.

VEGASCAN 850 21

Technical data

Accuracy

1)

(typical values under reference conditions relating to the nominal measuring range)

Characteristics linear
Deviation in characteristics including

linearity, repeatability and
hysteresis (determined acc. to the

limit point method) < 0.1 %
Linearity better than 0.05 %
Average temperature coefficient of the

zero signal 0.06 %/10 K
Resolution max. 1 mm
Resolution of the output signal

- VEGASON 51 … 54 0.01 % or 1 mm

- VEGASON 55 and 56 0.01 % or 10 mm

Ambient conditions

Ambient temperature (housing) -20°C … +60°C
Process temperature (transducer)

- VEGASON 51 … 55 -40°C … +80°C (StEx: -20°C … +75°C)

- VEGASON 56 version A -40°C … +120°C

- VEGASON 56 version B and C -40°C … +150°C

- storage and transport temperature -40°C … +80°C

Vessel pressure max. (gauge pressure)

- VEGASON 51 and 52 2.0 bar

- VEGASON 53 1.5 bar

- VEGASON 54
Version A 1.5 bar (flange version)
Version B … C 0.5 bar
Version D 3 bar

- VEGASON 55
Version A 1.5 bar (flange version)
Version B … C 0.5 bar
Version D 3 bar

- VEGASON 56
Version A 3 bar (flange version)
Version B … C 0.5 bar
Version D 3 bar

Protection

- sensor IP 67

- transducer, process IP 68

Protection class

- two-wire sensor II

- four-wire sensor I

Overvoltage category III
Selfheating

at 40°C ambient temperature

- sensor 45°C

- transducer, process 55°C

1)

Similar to DIN 16 086, reference conditions acc. to IEC 770;
temperature 15°C … 35°C; moisture 45 % … 75 %; pressure 860 mbar … 1060 mbar

22 VEGASCAN 850

Technical data

Ex technical data

(note approval documents)

Classification m (die casting of the transducer)

supply with increased safety

Temperature class (permissible

ambient temperature on the transducer
when used in Ex areas)

-T6 45°C

- T5, T4, T3 60°C

Ex approved in category or zone

- VEGASON 51, 52, 56
ATEX Zone 1 (II 2G)
IEC, CENELEC, PTB Zone 1

- VEGASON 51 … 56
ATEX Zone 21/22 (II 2D/3D)
IEC, CENELEC, PTB Zone 10/11

Process fittings

VEGASON 51 G 11/2A, 11/2“ NPT
VEGASON 52 G 2 A, 2“ NPT
VEGASON 53 DN 100 compression flange
VEGASON 54 G 1 A, 1-11,5 NPT, DN 50, DN 80, DN 200
VEGASON 55 G 1 A, 1-11,5 NPT, DN 50, DN 80, DN 250
VEGASON 56 G 1 A, 1-11,5 NPT, DN 50, DN 80, DN 200

Note:
VEGASON 54 … 56 sensors with process fittings G 1 A, 1-11.5 NPT, DN 50 and DN 80
generally require an additional adapter flange, if no other access to the vessel interior is
available.

Connection cables

Power supply supply and signal via one two-wire cable
Electrical connection

- sensors and VEGASCAN spring terminals, terminal cross-section

generally 2.5 mm

2

- sensor option screw connection

Cable entry in sensor housing

- standard 2 x M20 x 1.5 (cable diameter 5 … 9 mm)

- option 2 x 1/2“ NPT (cable diameter 3.1 … 8.7 mm

or 0.12 … 0.34 inch)

Cable entry in

VEGASCAN 850 4 … 5 x M20 x 1.5

Ground connection max. 4 mm

(cable diameter 6 … 12 mm)

2

Transducer cable (only type 54 … 56

in version C and D)

- VEGASON 54, 55 5 … 300 m (cable diameter 7.2 … 7.6 mm)

- VEGASON 56 5 … 300 m (cable diameter 9.5 … 9.9 mm)

VEGASCAN 850 23

Materials

Housing PBT (Valox) or Aluminium
Process fitting

- VEGASON 51, 52 PVDF (thread)

- VEGASON 53 PP or 1.4571 (compression flange)

1.43019 (mounting strap)

- VEGASON 54 … 56 - Alu or PP (version A)

- swivelling holder or thread G 1 A of
galvanized steel (version B, C and D)

Transducer

- VEGASON 51, 52 PVDF

- VEGASON 53 UP

- VEGASON 54 PA (1.4301 with StEx)

- VEGASON 55, 56 UP

Transducer diaphragm

- VEGASON 51, 52 PVDF

- VEGASON 53 1.4571

- VEGASON 54 1.4571

- VEGASON 55 Alu/PE foam

- VEGASON 56 Alu/PTFE coating

Transducer cable (cable cover)

- VEGASON 54, 55 PUR (1.1082)

- VEGASON 56 Silicone (1.1083)

Weight

VEGASON 51 1.2 kg
VEGASON 52 1.6 kg
VEGASON 53 2.3 kg
VEGASON 54

- version A 5.6 … 10.7 kg

- version B 6.9 … 9.7 kg

- version C 7.5 … 10.5 kg

- version D 4.7 … 6.9 kg

VEGASON 55

- version A 8.0 … 13.3 kg

- version B 8.7 … 10.3 kg

- version C 9.2 … 11.1 kg

- version D 6.5 … 7.5 kg

VEGASON 56

- version A 7.3 … 11.3 kg

- version B 8.7 … 10.3 kg

- version C 9.3 … 11.1 kg

- version D 6.5 … 7.5 kg

Technical data

CE conformity

VEGASON series 50 ultrasonic sensors and VEGASCAN 850 meet the protective regula­tions of EMC (89/336/EWG) and NSR (73/23/EWG). Conformity was judged acc. to the
following standards:
EMC Emission EN 50 081 - 1: 1992

Susceptibility EN 50 082 - 2: 1995

NSR EN 61 010 - 1: 1993

EN 61 326 - 1: 1997/A1:1998

24 VEGASCAN 850

Technical data

3.2 Dimensions

VEGASCAN 850

90

80

260235

246

13 90

210

236

VEGASCAN 850 25

External indicating instrument VEGADIS 50

Technical data

38

ø5

48

10

Pg 13,5

Mounting on carrier rail 35 x 7 .5 acc. to EN 50 022 or flat
screwed

135

118

108

Adjustment module MINICOM

Tank 1
m (d)

12.345

67,5

ESC

+

-

32,5

OK

Adjustment module for insertion into
VEGASON series 50 sensor or into the exter­nal indicating instrument VEGADIS 50

74

82

85

Note:

The diameter of the connection cable must be
5 … 9 mm.
Otherwise the seal effect of the cable entry will
not be ensured.

26 VEGASCAN 850

Technical data

VEGASON 51

Housing PBT

201

Housing aluminium

370

322

182

215

185

10˚

165

M20x1,5

SW 60

G 1½ A/
1½" NPT

25

101

90

116

2

ø 40

Min. distance
to the medium

228

315

20

Reference plane

0,25 m

205

M20x1,5

SW 60

102

252

337

2

G 1½ A/
1½" NPT

20

Reference plane

ø 40

Min. distance to
the medium

0,25 m

VEGASCAN 850 27

VEGASON 52

Housing PBT

Technical data

201

Housing aluminium

370

322

182

215

185

10˚

165

M20x1,5

SW 60

G 2 A

25

101

90

116

232

2

20

ø 50

Min. distance to
the medium

315

Reference plane

0,4 m

205

M20x1,5

SW 60

102

256

337

2

G 2 A

20

Reference plane

ø 50

Min. distance to
the medium

0,25 m

28 VEGASCAN 850