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VEGASON
71 - 2 ... 75 - 2
TIB • Technical Information • Operating Instructions
1
2
5.00
5.00
1
2
3
4
VEGASON
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
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
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Table of Contents
Related Manuals for Vega VEGASON 71-2
Summary of Contents for Vega VEGASON 71-2
- Page 1 Linearization Sensor optimization VEGASON 71 - 2 and 73 - 2 approved in hazardous areas of Ex - zone 1 VEGA Grieshaber KG Electronic level measurement Am Hohenstein 113 Postfach 11 42 D-77757 Schiltach Phone 0 78 36/50-0...
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Page 2: Table Of Contents
Contents 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... - Page 3 Contents 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...
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Page 4: Contents Of The Instruction Manual
VDE-regulations and the security measures valid operated as described in this TIB. Please note that for the respective applications should be observed. other action can cause damage for which VEGA does not take liability. Special instructions for the use in Ex-Zone 1 The transducers SW 71 …... -
Page 5: Configuration Of Measuring System
Technical Information Configuration of a measuring system Inputs Central electronics Outputs Measuring data of Multi function indicator transducer 1 channel 1 Module for relay output 1 and 2 Module for relay output 3 and 4 Module for current output 1 and 2 0 …... -
Page 6: Technical Data
Technical Information Technical data Power supply operating voltage standard = 24 V AC (16 … 42 V), 50 / 60 Hz nenn = 24 V DC (16 … 60 V) option = 230 V AC (90 … 250 V), 50 / 60 Hz nenn power consumption at U... - Page 7 Technical Information Technical data (continuation) 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 module - as above however with 2 floating outputs each...
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Page 8: Dimensional Drawing
Technical Information Dimensional drawing (dimensions in mm) *174 Flanged gimbal Flange DN 150 VEGASON PN 16 Central electronics Pg 13,5 Pg 7 G 1 A Sensor SW Sensor 71 … 73 SW 72 / 73 71 R … 73 R ø95 Min. -
Page 9: Measuring Range
Technical Information Measuring range The measuring ranges described below are max. The location of the sensors should be carefully values and can change dependent on process selected and it should be noted that no struts, conditions. edges or material inflow impede the measurement (see installation recommendations page 10 and 11). -
Page 10: For Liquid Tanks
Technical Information Installation example for liquid tanks - Select sensor type and installation in relation to - In case of round tank ceilings, the sensor should max. level to be measured. be installed on a socket piece not located in the - Protect the inner side of the socket piece for centre or on an opening (on half radius). -
Page 11: For Solids
Technical Information Installation examples for solids - Select sensor type and installation in relation to - Always direct the sensor (sound pulse) to the max. level to be measured. centre of the silo. - Protect the inner side of the socket piece from - Install sensor as far as possible from the filling corrosion or use non-corrosive material. -
Page 12: Electrical Connections
Technical Information Electrical connection + - + - 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1………2 1…………2 …………… 3………...4 Current output Relay output Service socket Service switch Fail safe relay output Attention! Supply voltage Fuse Type TR5... -
Page 13: Indication And Operating Elements
Operating surface Indication and operating elements Outer view Inner view LED-indication Units indicator fault signal visible in slot Indication of channel 1 and 2 behind window measured values 1 MODEFIELD Selection of mode 8888 8888 Cursor position Figures raise Figures lower 8888 8888 Storage... -
Page 14: Operating
Operating surface Operating The VEGASON 71 - 2 … 75 - 2 has 3 modes which If no push button is used for a 60 minutes period, can be accessed (scrolling) via the MOD-button: the VEGASON 71 - 2 … 75 - 2 times out and reverts to the input value display. -
Page 15: Flow Diagram For Start-Up
The fault signal extin- guishes. The sensors 1 and 2 adapted to 9.20 the vessel feature and operate with the parameters of the VEGA-adjustments. 9.50 Optimizations are necessary for sensor 1 and / or sensor 2 Sensor 1 determines in vessel 1 the actual... -
Page 16: Mode Listing 0, General Parameter Adjustments
Start-up Mode listing 0 general parameters Function Mode-no. Mode description Parameter Page = factory preset) Software version ........e.g. 16.93 0 - 00 0 - 01 … 09 not used ............. – – – – Adjustment Selection of adjustment procedure 0 - 10 channel 1 - in m without level change ....... -
Page 17: Display Function
Start-up Mode listing 0 (continuation) general parameters Function Mode-no. Mode description Parameter Page = factory preset) Display Multiplier function 0 - 23 - related for 0 % ........0000 … 9999 - related for 100 % ........0000 … 1000 … 9999 0 - 24 0 - 25 Measuring unit... - Page 18 Start-up Mode listing 0 (continuation) general parameters Function Mode-no. Mode description Parameter Page = factory preset) Relay Coordination 0 - 43 output 1 - channel 1 ..........in m = 1 in % = 2 - channel 2 ..........- difference ..........p.
- Page 19 Start-up Mode listing 0 (continuation) general parameters Function Mode-no. Mode description Parameter Page = factory preset) Current Coordination - channel 1 ..... 0 - 64 output 1 - channel 2 ..... - difference ..... p. 37 Charac- - end ....... 20.00 …...
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Page 20: Level Measurement
Adjustment at level measurement Level measurement Two separate level measurements can be obtained The display coordination is programmable and with the VEGASON 71 - 2 … 75 - 2 (measuring supplied as factory preset in mode 40 as follows: system). 0 –... -
Page 21: Adjustment In M Without Level Change
Adjustment at level measurement Empty / full adjustment in m without product level change MODE 0 - 11 and 0 - 12 Programming pre-requirement With this adjustment procedure two distances Mode 10 = 1 (sensor … product surface) are defined in m Mode 40 = 11 relating to the levels of 0 % and 100 %. -
Page 22: Differential Measurement
Adjustment at differential measurement Differential measurement MODE 0 - 40 A differential measurement can be obtained with The display coordination is defined as follows in the measuring system VEGASON 71 - 2 … 75 - 2. mode 0 - 40: The difference is formed out of the values of chan- 0 - 4 0 nel 2 minus channel 1. -
Page 23: Adjustment In M Without Level Change
Adjustment at differential measurement Differential adjustment in m without differential measurement MODE 0 - 31 and 0 - 32 Programming as pre-requirement With this adjustment procedure two differences Mode 30 = 1 in m are defined, relating to the values of 0 % and Mode 40 = 21 or 12, display coordination 100 %. -
Page 24: Adapting To The Vessel Geometry
Linearization Linearization Adapting to vessel geometry (channel 1) MODE 0 - 18 The most usual vessel geometries are adjusted as fixed curves in mode 0 - 18. Mode 0 - 18 = 1 Fixed curve (linear) level percentage for cylindrical tank output Mode 0 - 18 = 2 Fixed curve for volume percentage... -
Page 25: Mode Listing 4 (5 And 6)
Linearization Mode listing 4 Linearization curve 4 … 6 Linearization curve 4 Function Mode-no. Mode description Parameter = factory preset) Index 1. index - level percentage ... 000.0 … 100.0 4.H.01 marker 4.L.01 marker - volume percentage ..000.0 … 100.0 •... -
Page 26: Determination Of The Index Markers
Linearization Determination of the index markers Gauging the level in litres - note the calculated values for L % in the linearity - mode 40: coordinate display 1 to level 1 protocol - mode 99: select linearization curve 4 - continue the procedure of "gauging the level in - fill or empty step by step with part volume litres"... -
Page 27: Linearity Protocol
Linearization Linearity protocol Linearization curve Linearization curve index level percentage volume perc. index level percentage volume perc. marker no. marker no. Date Date Name Name 71 - 2 … 75 - 2... -
Page 28: Parameter Field
Linearization Programming example: Index marker 01 ............• index marker 01 4.H.01 select level percentage MODEFIELD Level percentage ............• acc. to linearity protocol program 12.0 % in PARAMETER FIELD • then store with STO-button • index marker 01 4.L.01 select volume percentage MODEFIELD Volume percentage ........... -
Page 29: Allocation Of A Multiplication Factor
Measurement, Display function Multiplier for 0 % and 100 % (channel 1) MODE 0 - 13 and 0 - 14 Values of 0000 … 9999 can be coordinated to The central electronics calculates all intermediate levels 0 % and 100 % after the adjustment proce- values out of this data. - Page 30 Measurement, Display function Programming example Distance level Distanz (linearized) Niveau After multiplying 100 % 4000 hl Mode 14 - the distance corresponds to 9 … 1 m - the level corresponds to 10 … 4000 hl 2005 Mode 13 (10 hl = min. quantity) Example display 2005 5.00...
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Page 31: Two-Point Level Switch
Measurement, Relay output Module for relay output 1 … 4 The pulse-echo measuring system can be equipped Each module has two relay outputs. with max. two relay modules. Two-point level switch Mode coordination / meaning module relay coordi- mode switching command output nation 1 and 2... - Page 32 Measurement, Relay output Mode (Module 1, relay output 1) continuation Mode 0 - 44 = 1 distance acc. to sensor type two-point level switch switching command 1 via switching command 2 correspond to function B (on) (protection against dry switching command 1, running of pumps) Mode 0-45 switching command 2,...
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Page 33: Pump Function
Measurement, Relay output Two-point level switch with pump function switch Using the VEGASON-measuring system in pump With programming the mode "pump function" the stations allows several pumps to be used indepen- switch on period of the respective relay outputs is dent of the level. - Page 34 Measurement, Relay output Two-point level switch with pump function switch (continuation) Note Before a manipulation of this type, the impact - The relay output included in the pump function should be checked. must be coordinated to one channel. Indication of the running period - The switch points 1 (on) must be always above (maintenance info) the switching commands 2 (off) (function B).
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Page 35: Tendency Determination
Measurement, Relay output Tendency determination By parameter adjustment it is possible to define for The adjustment is made in cm / min. and detects a each relay output the tendency determination mode range of 000.1 … 999.9 cm / min. and to coordinate this relay output to a channel. - Page 36 Measurement, Relay output Tendency determination (continuation) relating to reducing level example for relay output 1 Requirement: Procedure: - enquire mode 4 (parameter 4) in mode 0 - 44 - relay is not operated - program the value of the required tendency - if the level reduces quicker than programmed in determination in mode 0 - 45 mode 0 - 45, the relay energizes...
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Page 37: Coordination And Course Of Characteristics
Measurement, Current output Module for current output 1 and 2 The pulse-echo measuring system can be equipped The module has two current outputs. with a current module. Mode coordination / meaning current coordination range of characteristics output final value initial value 0 - 64 = 1 channel 1 channel 2... -
Page 38: Supplementary Programming
Supplementary programmings Signal processing MODE 0 - 93 The parameter adjustment of mode 0 - 93 defines the condition of - the relay outputs and - the current outputs in case of failure. 0 - 9 3 In the parameter field a figure is coordinated to each channel (level measurement 1, 2 and differ- 1 1 1 ence). -
Page 39: Simulation
Supplementary programmings Simulation MODE 0 - 94 … 0 - 96 These modes enable the outputs for each channel The simulation influences the selected channel and to be simulated over the whole range of the therefore the outputs coordinated to this channel, distance in m, to test the function of the connected i.e. -
Page 40: Basic Adjustment
Supplementary programmings Basic adjustment MODE 0 - 97 After having finished the parameter adjustments of Mode 0 - 97 offers this possibility. Previously one or several modes it may be necessary to reset adjusted parameters are cancelled. Cancellation is the parameters of these modes to factory preset indicated with CAL on the display (approx. -
Page 41: Sensor Optimization
Sensor optimization Selection of sensor optimization MODE 0 - 99 In mode 0 - 99 the sensor optimization 1 and 2 and also the reset to the general parameter adjustment can be carried out. 0 - 99 - 01 1 - 99 - 01 Sensor optimization Reset... - Page 42 Sensor optimization Mode listing 1 Sensor optimization 1, channel 1 (continuation) Mode-no. Mode description Parameter Page = factory preset) Multiple echo 1 - 12 - reduction ..........0.00 … 1.25 V p. 47 - optimization ........... 0.00 … 1.25 V 1 - 13 False echo learn 1 - 14...
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Page 43: Information For Sensor Optimization 1
Sensor optimization Information for sensor optimization 1 If optimization is required, always compare the local conditions with the programmed parameters - if necessary correct or adapt. Basic test of Mode-no. Information Selection / measures Page product type liquids or solids p. -
Page 44: Limitation Of The Operating Range Start Of Operating Range / End Of Operating Range
Working range reduction Working range MODE 1 - 05 … 1 - 08 The working range can be limited in this mode by Note: programming of In case of multiple reflections, a limited operating - start of working range and range may not be sufficient. -
Page 45: Product Type
Adaption to the product Product type MODE 1 - 09 The product type together with the vessel geometry The echo amplification is reduced or adapted after can generate different reflections and therefore the measuring window. multiple echoes. The available product type can be selected in this mode. -
Page 46: To Solids
Adaption to the solid Solid MODE 1 - 10 and 1 - 11 Certain characteristics can cause different multiple In case the factory preset echoes, e.g.: - angle of repose 0° - surface structure of the solid - particle size > 11 mm - type of filling / emptying do not ensure a reliable suppression of the multiple - angle of repose... -
Page 47: Multiple False Echo Reduction
Reduction of gain Multiple false echo reduction MODE 1 - 12 and 1 - 13 Tanks with arched ceilings and therefore strong If the measures carried out in mode 1 - 09 … 11 are parabolic effects or silos with fine ground solids can not sufficient, an additional reduction by OFFSET cause strong multiple echoes. -
Page 48: False Echo Learn
Storage of a false echo profile False echo learn MODE 1 - 14 … 1 - 17 Construction details inside the vessel such as e.g. Requirements - weldment joints - The strength (amplitude) of the useful echo must - edges be larger in the interference position than that of - ladders the false echo. -
Page 49: Profile Interpolation
Storage of a false echo profile Profile interpolation MODE 1 - 18 With the function "false echo learn" gaps can exist Build-up around struts, weldment joints etc. caused between the false echoes gated out. after the time cycle, generate additional false echoes. -
Page 50: Rate Of Product Level Change
The rate of product level change is factory set by This adjustment should only be changed if this VEGA within the adjustment range seems useful in case the actual rate of product - 0.01 … 11 cm / sec. with level change exceeds the standard value. -
Page 51: Limitation
Limitation of the echo gain Max. gain MODE 1 - 20 … 1 - 22 By using the whole gain, the pulse echo measuring Note: system tries to detect an echo. This means that in - The limitation is adjustable from 0.03 V to empty vessels the gain can be bigger than required 4.50 V, as optimization up to 4.95 V. -
Page 52: Supplementary Optimization
Supplementary optimization Measuring window MODE 1 - 23 The measuring window must be switched off to Attention: achieve reliable measuring results in case of level When switching off the measuring window always changes > 10 cm / sec. or fluctuating level the first large echo is detected within the working changes. -
Page 53: Real Distance
Supplementary optimization Real distance MODE 1 - 25 As described before, all echoes within the measur- Preventive optimizations ing window are evaluated (useful and false echo). - angle of repose adapted (mode 1 - 10) Therefore the measuring window can position on a - particle size adapted (mode 1 - 11) false echo for different reasons. -
Page 54: Supplement
Supplement Protocol of the sensor optimization Mode-no. Mode description Factory preset Sensor optimization 1 - or 2 - Working range - start ............0.00 m - end 71 - 2 ........6.00 m 72 - 2 ........12.00 m 73 - 2 ........12.00 m 74 - 2 ........ -
Page 55: Error Codes
Supplement Error codes Problems during measurement or faulty adjust- The current outputs as well as the switching relays ments during the programming are indicated on the react channel specific acc. to the table below or display with a fault signal. their parameter adjustment in mode 93. - Page 56 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 Technical data subject to alterations 2.14 655 / April '94...
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