VEGA FLEX52V User Manual
Operating Instruction
VEGAFLEX 51V and 52V
Level and Pressure
Safety information / Note Ex-area
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 VEGAFLEX 51V and 52V
Note Ex-area
Please note the attached approval documents
(yellow binder) and especially the included
safety data sheet.
Contents
Contents
Safety information ........................................................................ 2
Note Ex-area ............................................................................... 2
1 Product description
1.1 Function ................................................................................ 4
1.2 Application features ............................................................. 5
1.3 Types and versions............................................................. 7
1.4 Type code ............................................................................ 8
1.5 Technical data ...................................................................... 9
1.6 Approvals .......................................................................... 12
1.7 Dimensions ........................................................................ 12
2 Mounting
2.1 Installation instructions ...................................................... 14
3 Electrical connection
3.1 Connection and connection cable .................................... 18
3.2 Connection of the sensor .................................................. 20
3.3 Connection of the indicating instrument VEGADIS 50 .... 21
4 Set-up
4.1 Adjustment structure ......................................................... 22
4.2 Adjustment with adjustment module MINICOM ............... 23
4.3 Adjustment with PC ........................................................... 28
4.4 Adjustment with signal conditioning instrument .............. 31
5 Diagnosis
5.1 Simulation ........................................................................... 32
5.2 Error removal ..................................................................... 32
VEGAFLEX 51V and 52V 3
1 Product description
1.1 Function
High frequency microwave impulses are
guided along a steel rope. When reaching
the product surface, the microwave impulses
are reflected. The running time of the impulses is processed by the integral electronics and provided as level.
The sensors measure levels of all kind of
solids. Density, conductivity and dielectric
constant of the medium do not influence the
measurement. Also varying solid characteristics do not influence the measured value.
Lime, cement, cereals, plastic granules, flour,
gravel - in solids VEGAFLEX microwave
sensors are the ideal solution for arduous
applications. The level is also reliably detected in products with varying humidity or
fluctuating dielectric constant. High, narrow
vessels in which non-contact measuring
principles often do not deliver optimum measuring results, VEGAFLEX can be used without problems.
VEGAFLEX 51 and 52 mainly differ in the
thickness of the measuring cable.
VEGAFLEX 51 has a cable with 4 mm diameter and is available up to a length of 10 m.
The cable of VEGAFLEX 52 has a diameter of
8 mm and can have a length of up to 20 m.
With the thicker cable it is also suitable for
solids with higher extraction forces.
Product description / Function
• Measuring range up to 20␣ m with small
min. distance
• Up to 15 sensors can be connected via
one two-wire cable
• Two-wire sensor, supply and digital
measuring signal via one two-wire cable
• Independent on application conditions
such as:
- dust and noise generation
- humidity changes
- varying products
- build-up
• Adjustment without vessel filling or emptying
• Individual wiring, with 15 sensors on one
two-wire line (digital output signal)
• Unaffected by vessel material, e.g. metal,
concrete, plastic etc.
4 VEGAFLEX 51V and 52V
Product description / Application features
1.2 Application features
Application features
• Level measurement in solids
• Measurement also in vacuum
• All slightly conductive and all substances
with a dielectric constant εr > 1,7 can be
measured
• Measuring ranges
VEGAFLEX 51 0 … 10 m
VEGAFLEX 52 0 ... 20 m
Two-wire technology
• Supply, signal transmission and output
signal on one two-wire cable
• digital output signal
• low wiring costs due to the use of bus
systems or two-wire technology
Rugged
• High resistance materials: PA, 1.4401
Exact and reliable
• Resolution 1 mm
• Unaffected by noise, vapours, dusts, gas
compositions and layering
• Unaffected by varying density
• Measurements under pressure up to
16 bar and medium temperatures up to
120°C
Communicative
• Integral measured value indication
• Indication either separated from the sensor
• Adjustment from the DCS-level
• Connection to all bus systems:
Interbus S, Modbus, Siemens 3964R,
Profibus DP, Profibus FMS, ASCII
Adjustment with adjustment module
MINICOM
With the 6-key-adjustment module MINICOM
(3,2␣ cm␣ x␣ 6,7␣ cm) you can carry out the adjustment in clear text dialogue.
The adjustment module can be plugged into
VEGAFLEX or into the external indicating
instrument VEGADIS 50.
VEGAFLEX can therefore also be adjusted
from the external indicating instrument
VEGADIS 50.
Pluggable adjustment module MINICOM
Adjustment with VEGA signal conditioning instruments
VEGAFLEX-series 50V sensors can be also
operated with a VEGAMET signal conditioning instrument.
The display leads you in clear text. With the
6-key adjustment field the parameter adjustment can be carried out.
Approvals
Dust-Ex - Zone 10
VEGAFLEX 51V and 52V 5
Adjustment with PC
The set-up and adjustment of the
VEGAFLEX-sensors can be made via PC
with the adjustment program VVO (VEGA
Visual Operating) under Windows®.
The software leads you quickly through the
adjustment and parameter adjustment by
means of pictures, graphics and process
visualisations.
The PC can be connected to any individual
position of the system or the signal line. It is
therefore connected with the two-wire PCinterface converter VEGACONNECT 2 to the
sensor or to the signal line.
The adjustment and parameter adjustment
data can be saved with the adjustment software on the PC. If necessary the adjustments
can also be transferred to other sensors.
On the following figures you see the different
connection possibilities.
Product description / Application features
Adjustment with the PC on the digital signal
and supply line to the processing system or
on the sensor
Adjustment with the PC on the digital signal
and supply line between sensor and
VEGAMET signal conditioning instrument
Adjustment with the PC and the standard
cable RS 232 on the processing system
Adjustment with the PC on the signal conditioning instrument
6 VEGAFLEX 51V and 52V
Product description / Types and versions
1.3 T ypes and versions
VEGAFLEX series 50 V
Generally all VEGAFLEX series 50 V sensors
can be adjusted with the pluggable adjustment module MINICOM or with a VEGAMET
signal conditioning instrument.
The sensor can be adjusted with the software
VEGA Visual Operating (VVO) also via PC.
VEGADIS 50
1
Configuration
A measuring system with a VEGAFLEX is
possible in different ways.
See the following figures.
The external indicating instrument VEGADIS
50 can be mounted up to 25 m separated
from the sensor.
Two-wire technology
1 Connection to a VEGAMET 514V, 515V,
614V signal conditioning instrument
2 Connection to a VEGALOG 571
4 … 20 mA
VEGAFLEX
e.g. VEGAMET 514V
2
4 … 20 mA
passive
VEGALOG
VEGAFLEX 51V and 52V 7
1.4 Type code
The second figure of the type designation,
e.g. VEGAFLEX 5[1]… distinguishes the
instruments according to the stability of the
cable.
The figure e.g. VEGAFLEX 51[V] characterizes the output signal:
K stands for an analogue 4␣ …␣ 20␣ mA output
signal (compact instrument)
V stands for a digital output signal (VBUS).
VEGAFLEX XX X EXS.X X
B - 20…72 V DC, 20...250 V AC / 4...20 mA-output, HART
D - Two-wire loop-powered / 4...20 mA-output, HART
E - Supply via signal conditioning instrument / V-BUS-output
Dust-Ex approved
V - Digital output signal (two-wire technology)
K - Analogue 0 … 20 mA output signal (two-wire or
four-wire technology)
Type 51: Instrument series with 4 mm-cable
Type 52: Instrument series with 8 mm-cable
Product description / Type code
®
®
Meas. principle (FLEX for guided microwave)
8 VEGAFLEX 51V and 52V
Product description / Technical data
1.5 T echnical data
Power supply
Supply voltage from signal conditioning instrument VEGAMET
Current consumption max. 22,5 mA
Power consumption max. 80 mW, 0,45 VA
Measuring range
VEGAFLEX 51 0,3 … 10 m
VEGAFLEX 52 0,3 ... 20 m
Output signal
Digital measuring signal (VBUS)
Adjustment
- signal conditioning instruments VEGAMET 514V, 515V, 614V
- PC and adjustment software VEGA Visual Operating
- adjustment module MINICOM
Accuracy (under reference conditions acc. to IEC 770 - relating to the max. meas. range)
Linearity error < 0,1 %
Temperature drift 0,015 %/10 K
Resolution 1 mm
or from the processing system VEGALOG 571
(max. 36 v DC)
fuse 0,5 A (slow-blow)
Characteristics
Min. span between full and empty adjustment
- digital output signal 10 mm
Ambient conditions
Vessel pressure -1 … 16 bar
Ambient temperature on the housing -40°C … +60°C
Process temperature -40°C … +120°C
Storage and transport temperature -40°C … +80°C
Protection IP 66/IP 67 (meets both protections)
Protection class
- two-wire sensor II
Overvoltage category III
Max. tensile load cable → 4 mm 5 KN
Ex-technical data
Dust-Ex Zone 10
The permissible operating data of the VEGAFLEX-sensors for dust-Ex-areas are stated in
the certificate.
VEGAFLEX 51V and 52V 9
cable → 8 mm 20 KN
Product description / Technical data
Materials
Housing PBT (Valox) or
Aluminium (powder coated)
Cable 1.4401 (stst; 316) or
galvanized steel - PA-coated
Process connections
VEGAFLEX 51, 52 G 11/2 A, 11/2“ NPT
steel chromated or of 1.4301 (stst)
Connection lines
- supply and signal via one two-wire cable,
the line resistance depends on the supply voltage (see diagram).
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)
Voltage limit
Ex-sensor
Voltage limit
not-Ex-sensor
Supply voltage
CE-conformity
VEGAFLEX 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: 1992
Susceptibility EN 50 082 - 2: 1995
NSR EN 61 010 - 1: 1993
Display indication
Display scalable analogue and digital measured
value indication (option).
An external measured value indication, supplied by the sensor, can be mounted up to
25 m separated from the sensor.
10 VEGAFLEX 51V and 52V
Product description / Technical data
Signal output VEGAFLEX 51V, 52V
Signal output digital output signal in two-wire technology
(VBUS)
Two-wire technology:
The digital output signal (measuring signal) is modulated to the power supply and further
processed in the signal conditioning instrument or in the processing system.
VEGAFLEX 51V and 52V 11
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