VEGA SCAN850 User Manual

Operating Instructions
VEGASCAN 850
Level and Pressure
Contents
Safety information ........................................................................ 2
Note Ex area ................................................................................ 2
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
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