VEGA SON71 User Manual
VEGA Grieshaber KG
Electronic level measurement
Am Hohenstein 113
Postfach 11 42
D-77757 Schiltach
Phone 0 78 36/50-0
Fax 0 78 36/50-201
4
1
1 2 3
2
VEGASON
VEGASON
71 - 2 … 75 - 2
TIB • Technical Information • Operating Instructions
Pulse-Echo
measuring system
Two channel operation
2-wire level measurement or
differential measurement
Operating range up to
-5 m
- 10 m
- 20 m
- 30 m
Compact unit with modules
for relay and current outputs
Linearization
Sensor optimization
VEGASON 71 - 2 and 73 - 2
approved in hazardous areas
of Ex - zone 1
5.00
5.00
Contents
2 71 - 2 … 75 - 2
Introduction Contents of the instruction manual .....................................................4
Safety information ...............................................................................4
Special instructions for use in Ex-Zone 1 ...........................................4
Product description .............................................................................4
Technical Information Configuration of measuring system ....................................................5
Technical data ....................................................................................6
Dimensional drawing ..........................................................................8
Measuring range .................................................................................9
Installation examples - for liquid tanks ..........................................10
- for solids ..................................................11
Installation errors (tanks or silos) ......................................................11
Electrical connections .......................................................................12
Operating surface Indication and operating elements ....................................................13
Operating ..........................................................................................14
Start-up Flow diagram for start-up ..................................................................15
Mode listing 0, general parameter adjustments ................................16
Adjustment Level measurement ........................................................................20
Selection of the adjustment procedure .............................................20
Adjustment in m without level change ..............................................21
Adjustment in % with level change ...................................................21
Differential measurement ..............................................................22
Selection of the adjustment procedure .............................................22
Adjustment in m without level change ..............................................23
Linearization Adapting to the vessel geometry ......................................................24
Selection of the linearization curves 4 … 6 ......................................24
Mode listing 4 (5 and 6) ....................................................................25
Display demonstration ......................................................................25
Operation ..........................................................................................25
Determination of the index markers ..................................................26
Linearity protocol ..............................................................................27
Programming example .....................................................................28
Outputs Display function
Allocation of a multiplication factor ........................................29
Measuring units and pattern ..................................................29
Decimal point ........................................................................29
Module for relay outputs 1 … 4
Two-point level switch ...........................................................31
Pump function .......................................................................33
Tendency determination ........................................................35
Module for current output 1 and 2
Coordination and course of characteristics ...........................37
Contents
71 - 2 … 75 - 2 3
Supplementary
programming
Failure processing ............................................................................38
Simulation .........................................................................................39
Basic adjustment ..............................................................................40
Keyword ............................................................................................40
Sensor optimization Selection of sensor optimization .......................................................41
Mode listing 1 (2) sensor optimization ..............................................41
Information for sensor optimization ..................................................43
Limitation of the operating range
Start of operating range / end of operating range .............................44
Adapting
to the
product type ..........................................................................45
to the vessel geometry (liquid) ..........................................................45
to solids ............................................................................................46
Reduction of echo amplification
Multiple false echo reduction ............................................................47
Storage
of a false echo profile
False echo learn ....................................................................48
Profile interpolation ...............................................................49
Adapting
to filling and emptying speed
Rate of product level change ................................................50
Limitation
of the echo amplification
Max. gain ...............................................................................51
Supplementary optimization
Measuring window ............................................................................52
Fail safe ............................................................................................52
Real distance ....................................................................................53
Basic adjustment ..............................................................................53
Supplement
Protocol of sensor optimization ........................................................54
Error codes .......................................................................................55
Product description
Introduction
4 71 - 2 … 75 - 2
Contents of the instruction manual
The Technical Information / Operating Instruc-
tions is just called TIB. It contains all necessary
information for correct:
- installation
- connection
- start-up
- linearization
- optimization
the Pulse-Echo-measuring system
VEGASON 71 - 2 … 75 - 2.
This TIB is supplied as part of the order. Knowledge
of the contents is important for correct operation of
the indicating instrument.
This TIB accompanies the product and is
addressed to technical qualified staff which are
trained or have knowledge of the use of level
measurement and control equipment.
Safety information
The described module must only be inserted and
operated as described in this TIB. Please note that
other action can cause damage for which VEGA
does not take liability.
VDE-regulations and the security measures valid
for the respective applications should be observed.
Special instructions for the use in Ex-Zone 1
The transducers SW 71 … SW 73 (SW 71 applied)
are also available in the Ex-flame proofing encapsulation "m". With the type designation SW 72 R
and SW 73 R they have the flame proofing
EEx m II T6 and can be used in Ex-Zone 1.
For these applications the regulations of the conformity certificate PTB-no. Ex–92.C.2113 as well as
the special regulations acc. to VDE have to be
observed. The above mentioned conformity certificate accompanies the instrument.
The Pulse-Echo-measuring system VEGASON
71 – 2 … 75 – 2 enables
- two channel level measurement or
- one differential measurement.
The running periods of reflected sound impulse are
evaluated.
The running period is a measure of the distance
between sensor (transducer) and product.
The central electronics determines these distances
for each channel and converts them into the
respective level.
Measurements are indicated on two integral LCdisplays and are either available as current or relay
outputs.
A measuring system consists of
- one central electronics and
- two sensors (transducer).
Each sensor has its own temperature sensor for
compensation of the temperature influence on the
running period. The measuring data and temperature information are conducted via coax connection
cable.
The measuring system is provided with factory-set
parameters so that immediate use is possible for
most applications.
The adjustment procedures and sensor optimizations etc. can be programmed directly via a
keyboard on the central electronics.
Technical Information
71 - 2 … 75 - 2 5
Configuration of a measuring system
Inputs Central electronics Outputs
Measuring data of
transducer 1
channel 1
Measuring data of
transducer 2
channel 2
Multi function indicator
Module for relay output 1 and 2
Module for relay output 3 and 4
Module for current output 1 and 2
0 … 20 mA
Fail safe relay and
fail safe-LEDs
4
1
1 2 3
2
VEGASON
Central electronics consists of:
- plastic housing with cover and integral
- operating elements (5 buttons)
- diodes (LED-indication)
- two multi function indications (LC-displays)
- power supply
- memory (EEPROM, no buffer battery required)
- outputs as modules (see above)
- terminals for power supply, inputs and outputs
Further instruments (option):
- indicating instrument VEGADIS 171 A
(connection to 0 … 20 mA)
- overvoltage arrester
Transducer
Technical data
Power supply operating voltage
standard U
nenn
= 24 V AC (16 … 42 V), 50 / 60 Hz
= 24 V DC (16 … 60 V)
option U
nenn
= 230 V AC (90 … 250 V), 50 / 60 Hz
power consumption
at U
nenn
and at max. load 12 VA / 5 W
fuse
for version 16 … 42 V AC or 16 … 60 V DC = 2 A
for version 90 … 250 V AC = 500 mA
Type VEGASON 71 - 2 72 - 2 73 - 2 74 - 2 75 - 2
Minimum distance at liquids or 0,3 m 0,5 m –– –– ––
solids particle size ≥ 5 mm –– –– 0,8 m 0,8 m 1,0 m
particle size ≤ 5 mm –– –– 1,0 m 1,1 m 1,2 m
Maximum distance product and process dependent 5 m 5 m 10 m 20 m 30 m
Input data min. measuring distance 10 cm 10 cm 10 cm 10 cm 10 cm
display in mm cm cm cm cm
scanning 3 mm 3 mm 3 mm 3 mm 3 mm
measuring frequency 50 kHz 40 kHz 33 kHz 22 kHz 16 kHz
measuring rate 0,4 sec. 0,4 sec. 0,4 sec. 0,5 sec. 0,7 sec.
angle of reflection at –3 dB) 7° 9° 12° 12° 12°
linearity error acc. to
empty / full adjustment < 0,1 % of measuring range
temperature error of electronics 0,1 % / 10 k of measuring range
Sensor data number of transducer 2
transducer housing PVDF
impedance adapter PE
mounting tube type 71 … 73 PVDF, thread 1" BSP
type 74 and 75 RCH 1000, thread 1" BSP
temperature sensor integrated in transducer
permissible excess pressure
in the vessel
- transducer 71 … 75 max. 1 bar
- transducer 71 R … 73 R max. 1 bar
connection cable coax line type RG 58
line length standard 5 m
maximum 300 m
cable diameter approx. 5 mm
Indication LC-display 2, 4-digits each
Relay output max. 2 modules 2 relay 1 spdt per relay each
contact material AgCdO and Au plated
min. turn-on voltage 10 mV
switching current 10 µA
max. turn-on voltage 250 V AC, 60 V DC
switching current 2 A AC, 1 A (DC)
max. breaking capacity 125 VA, 60 W
Technical Information
6 71 - 2 … 75 - 2
Current outputs module - with 2 outputs
- range 0/4 … 20 mA
- resolution 0,05 % of range
- load max. 500 Ohm
- load dependent
failure at 0 … 500 Ohm, < 0,2 % related to the range
or
module - as above however with 2 floating outputs each
Fail safe function 1 relay for both channels 1 spdt
contact data as described under relay outputs
2 fail safe-LEDs separately per channel
Ambient ambient temperature on
conditions - transducer 71 … 75 –20°C … +80°C / -4 … 176°F
- transducer 71 R … 73 R –20°C … +55°C / -4 … 131°F
- central electronics –20°C … +60°C / -4 … 140°F
storage and transport temperature –20°C … +80°C / -4 … 176°F
Environmental protection
protection - transducer 71 … 75 IP 68
- transducer 71 R … 73 R IP 68
- housing of central electronics IP 65
protection class II
Electrical terminals for max. 1 x 1,5 mm
2
connection cable entry 2 x Pg 7
1 x Pg 13,5, max. 5 x Pg 13,5
Material transducer PVDF
housing of central electronics Polycarbonate
Weight VEGASON 71 … 73 74 and 75
1 transducer (without cable) approx. 0,8 kg approx. 1,5 kg
central electronics approx. 1,9 kg approx. 1,9 kg
Dimensions see dimensional drawing on following page
Technical Information
71 - 2 … 75 - 2 7
Technical data
(continuation)
Technical Information
8 71 - 2 … 75 - 2
Dimensional drawing
(dimensions in mm)
411 2 3
2
VEGASON
*174
* Mounting dimensions
45
91
90
*229
Min. distance for
further instruments
40
5
ø95
appr. 100
Flange
DN 150
PN 16
appr. 155
133
93
ø145
Sensor
SW 72 / 73
Pg 13,5
Pg 7
Central electronics
G 1 A
Thread
1" BSP
0,5…0,8 m
90
0,8…1,2 m
Sensor
SW 74 / 75
54
Flanged
gimbal
Min. distance
Min. distance
Sensor SW
71 … 73
71 R … 73 R
Technical Information
71 - 2 … 75 - 2 9
Measuring range
The measuring ranges described below are max.
values and can change dependent on process
conditions.
The location of the sensors should be carefully
selected and it should be noted that no struts,
edges or material inflow impede the measurement
(see installation recommendations page 10
and 11).
for liquids
VEGASON 71 - 2 72 - 2 73 - 2 74 - 2 75 - 2
Reference pane
Min.
distance 0,3 m 0,5 m 0,8 m 0,8 m 1,0 m
Measuring
range
5 m 5 m 10 m 20 m 30 m
for solids
VEGASON 73 - 2 74 - 2 75 - 2
Reference pane
Min.
distance particle size≥ 5 mm 0,8 m 0,8 m 1,0 m
particle size≤ 5 mm 1,0 m 1,1 m 1,2 m
Measuring
range
10 m 20 m 30 m
Technical Information
10 71 - 2 … 75 - 2
Installation example for liquid tanks
- Select sensor type and installation in relation to
max. level to be measured.
- Protect the inner side of the socket piece for
corrosion or use non-corrosive material.
- In case of round tank ceilings, the sensor should
be installed on a socket piece not located in the
centre or on an opening (on half radius).
In closed vessels:
Tube or direct mounting. If socket
piece length > 100 mm or for
VEGASON 72 / 73 or > 150 mm for
VEGASON 74 / 75 are required
(max. level). Note the dimensions
in the following table.
in open vessels: Mounting via
Mounting by means access hatch:
of bracketry Simple direct mounting
Max. socket piece length L at:
(dimensions in mm)
VEGASON 71 - 2 72 - 2 73 - 2 74 - 2 75 - 2
at socket 100 300 400 400 ––– –––
piece ø
150 300 500 400 300 300
200 ––– ––– 500 400 400
250 ––– ––– 600 500 500
300 ––– ––– ––– 600 600
350 ––– ––– ––– 700 700
Min. distance 300 500 800 800 1000
L
ø
45°
Socket piece length
Technical Information
71 - 2 … 75 - 2 11
Installation examples for solids
- Select sensor type and installation in relation to
max. level to be measured.
- Protect the inner side of the socket piece from
corrosion or use non-corrosive material.
- Always direct the sensor (sound pulse) to the
centre of the silo.
- Install sensor as far as possible from the filling
entry.
- When using round ceilings, mount the sensor
half way between silo middle and edge.
Installation with cylindrical
socket piece
Installation with flanged
gimbal
Installation in open silos via
bracketry
socket piece length L at:
(dimensions in mm)
VEGASON 73 - 2 74 - 2 75 - 2
at socket 100 400 ––– –––
piece ø
150 400 300 300
200 500 400 400
250 600 500 500
300 ––– 600 600
350 ––– 700 700
Min. distance 800 … 800 … 1000 …
1000 1100 1200
Installation errors
(at tanks or silos)
L
45°
ø
The socket piece
should not be
covered by the
product.
The socket piece
should not have
weldment joints.
Access too small. Socket pieces in
the centre of
round tank ceilings
are not recommended for the
sensor installation.
The beam should
not cross the
material inflow.
2
1
3
4
5
91011
12
13 14
21 22
23
15 16
17
18
19
20
24
+ - + -
6
7
8
Fail safe relay output
Supply voltage
Service socket
1
2
Service
switch
1…………2 …………… 3………...4
Relay output
1………2
Current output
respective max.
line length = 300 m
Sensor 1 Sensor 2
Channel 1
Channel 2
Technical Information
12 71 - 2 … 75 - 2
Electrical connection
Note:
During operation the transducer is pulsed with high
voltages. It is therefore recommended that first all
electrical connections are provided and then the
power supply for the instrument switched on.
Attention!
Fuse
Type TR5
Manufacturer e.g. Messrs. Wickmann
Current values see technical data page 6
The connection line to the respective sensors can
be extended afterwards as shown.
If must be observed that the max. line length of
300 m is not exceeded.
Standard
waterproof
dividing box
Operating surface
71 - 2 … 75 - 2 13
Indication and operating elements
Outer view Inner view
Indication of measured values
5.00 m
e.g. level 1 … 9 m
5.00 m
Demonstration form after
programming of - multiplier
- allocation of decimal point
- decimal point e.g.
50.0 %
level 0 … 100 %
5.00 %
2000 hl
level 0 … 4000 hl
2000 hl
Mode range
general reset 0 - 00 … 99
sensor optimization 1 1 - 01 … 27
sensor optimization 2 2 - 01 … 27
linearization curve 4 4.H.01 … 32
linearization curve 5 5.H.01 … 32
linearization curve 6 6.H.01 … 32
fault signals
channel 1 E2.01 … .04
channel 2 E2.01 … .04
4
1
1 2 3
2
1
MOD
STO
2
MODEFIELD
Indication of
measured values 1
PARAMETER FIELD
Indication of
measured values 2
8888
8888
8888
8888
LED-indication of
relay outputs 1…4
Operating
scheme
LED-indication
fault signal
channel 1 and 2
Units indicator
visible in slot
behind window
Selection of
mode
Cursor position
Figures raise
Figures lower
Storage
Operating surface
14 71 - 2 … 75 - 2
The VEGASON 71 - 2 … 75 - 2 has 3 modes which
can be accessed (scrolling) via the MOD-button:
Mode: 1. indication of measured values
2. mode range
3. parameter input
If no push button is used for a 60 minutes period,
the VEGASON 71 - 2 … 75 - 2 times out and
reverts to the input value display.
Operating
In mode 99 the main stage 0 can be left and stage
1 and 4 … 6 can be selected. The reset to main
stage 0 is done in the respective mode 99.
During a parameter adjustment the last mode
number used is activated again after each STOcommand and entry to the mode range.
Indication of measured
values:
level in m
level in %
and acc. to the demonstration form e.g.
quantity in hl.
For selection of the mode
numbers see
MODEFIELD. The parameters of the selected
mode numbers can be
checked or modified in
mode 3.
Programming of parameters see PARAMETER
FIELD. The parameters of
the selected mode can be
modified and stored with
STO-button. With STO
reset to mode 1.
MOD
MOD
+
-
MOD
STO
+
-
Cursor position
Figures raise
Figures lower
Cursor position
Figures raise
Figures lower
5.00
5.00
0 00000
16.93
0 99
0 - 00
– – – –
0
1. Indication
of
measured
values
2. Mode range
3. Parameter
adjustment
Start-up
71 - 2 … 75 - 2 15
Flow diagram for start-up
Connect sensors with central electronics
and supply with operating voltage.
The software version is indicated and the
fault signal reacts.
The measuring system is now ready and
starts for each separate channel with the
commissioning preliminary indication: 0.00 m.
Commissioning, i.e.:
1. Echo limitation from top to bottom.
2. Echo limitation from bottom to top.
3. Formation of a measuring window within
which an evaluation of the echo is carried
out.
After approx. 1 … 3 minutes the measuring
system is ready. The fault signal extinguishes. The sensors 1 and 2 adapted to
the vessel feature and operate with the
parameters of the VEGA-adjustments.
Level measurement 1
Level measurement 2
Sensor 2 determines in vessel 2 the actual
distance of 9,50 m
Sensor 1 determines in vessel 1 the actual
distance of 9,20 m
Optimizations are necessary for sensor 1
and / or sensor 2
NO
YES
?
!
!
1
2
5 6
4
14.94
!
!
1
2
5 6
4
9.20
9.50
0.00
0.00
m
m
m
m
Start-up
16 71 - 2 … 75 - 2
Mode listing 0
Function Mode-no. Mode description Parameter Page
( = factory preset)
0 - 00 Software version ........................................ e.g. 16.93
0 - 01
… 09 not used ..................................................... – – – –
Adjustment 0 - 10 Selection of adjustment procedure
channel 1
- in m without level change ....................... 1
- per cent correction .................................. 2
- in % with level change ........................... 3
0 - 11
Empty adjustment
- distance in m........................................... sensor specific p. 20
- level in % ................................................ 0.0 … 80.0
0 - 12
Full adjustment
- distance in m........................................... sensor specific
- level in % ................................................ 100.0 … 20.0
Display Multiplier
function 0 - 13 - related to 0 % ......................................... 0000 … 9999
0 - 14 - related to 100 % ..................................... 0000 … 1000 … 9999
0 - 15 Measuring unit
- level percentage in m ............................. 1 p. 29
- level percentage in % ............................. 2
- volume percentage (scaled) ................... 3
0 - 16 Decimal point............................................ 0.000 … 000.0 … 0000
0 - 17 Integration time ........................................ 0 … 900
Lineari- 0 - 18 Linearization curves
zation - linear ...................................................... 1
- cylindrical tank ........................................ 2
- not used ................................................. 3 p. 24
- individually programmable curve 4 ......... 4
- individually programmable curve 5 ......... 5
- individually programmable curve 6 ......... 6
0 - 19 not used ..................................................... – – – –
Adjustment 0 - 20 Selection of adjustment procedure
channel 2 - in m without level change ....................... 1
- per cent correction ................................. 2
- in % with level change ........................... 3
0 - 21 Empty adjustment
- distance in m........................................... sensor specific p. 20
- level in % ................................................ 0.0 … 80.0
0 - 22 Full adjustment
- distance in m........................................... sensor specific
- level in % ................................................ 100.0 … 20.0
general parameters
Start-up
71 - 2 … 75 - 2 17
Mode listing 0 general parameters
Display Multiplier
function 0 - 23 - related for 0 % ........................................ 0000 … 9999
0 - 24
- related for 100 % .................................... 0000 … 1000 … 9999
0 - 25
Measuring unit
- level percentage in m ............................. 1 p. 29
- level percentage in % .............................
2
- volume percentage (scaled) ................... 3
0 - 26 Decimal point ........................................... 0.000 … 000.0 … 0000
0 - 27 Integration time ........................................ 0 … 900
Lineari- 0 - 28 Linearization curves
zation - linear ...................................................... 1
- cylindrical tank ........................................ 2
- not used ................................................. 3 p. 24
- individually programmable curve 4 .........
4
- individually programmable curve 5 ......... 5
- individually programmable curve 6 ......... 6
0 - 29 not used ..................................................... – – – –
Adjustment 0 - 30 Selection of adjustment procedure
differential - in m without level change ....................... 1
measure- - percent correction .................................. 2
ment 0 - 31 Adjustment min. difference
- in m ......................................................... sensor specific p. 22
- percent correction .................................. 0.0 … 80.0
0 - 32 Adjustment max. difference
- in m ......................................................... sensor specific
- percent correction .................................. 100.0 … 20.0
Display Multiplier
function 0 - 33 - related to 0 % ......................................... 0000 … 9999
0 - 34 - related to 100 % ..................................... 0000 … 1000 … 9999
0 - 35 Measuring unit
- level percentage in m ............................. 1 p. 29
- level percentage in % ............................. 2
- volume percentage (scaled) ................... 3
0 - 36 Decimal point ........................................... 0.000 … 000.0 … 0000
0 - 37 … 39 not used ..................................................... ––––
Display 0 - 40 Display coordination
1 1 0 = inactive p. 22
Display 2 1 = level indication
(channel specific)
Display 1
2 = differential indication
0 - 41 u. 42 not used ..................................................... – – – –
Function Mode-no. Mode description Parameter Page
( = factory preset)
(continuation)
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