Level and Pressure Operating Instructions VEGASCAN 850
Contents Contents Safety information ........................................................................ 2 Note Ex area ................................................................................ 2 1 Product description 1.1 Function ................................................................................. 4 1.2 Application features ............................................................. 6 1.3 Adjustment ............................................................................
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 .........................................
Product description 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).
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.
Product description 1.2 Application features 1.3 Adjustment 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 measurement, object monitoring and conveyor belt monitoring Each measuring situation is unique.
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. Tank 1 m (d) 12.345 - + ESC OK The adjustment program recognises the sensor type and the location of the connection Detachable adjustment module. The adjustment module can be plugged into the ultrasonic sensor or onto the external indicating instrument VEGADIS 50.
Types and versions 2 Types and versions 2.1 Type overview, VEGASCAN 850 2.2 Type overview, sensors 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“).
Types and versions Common features VEGASON 54 • 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.
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.
Types and versions 2.3 Type code, VEGASCAN 850 VEGASCAN 850 X X X X X K - Cable entry M20 x 1.
Types and versions 2.4 Type code, sensors VEGASON 54 V EX.XX X X X X X X X KNA- Plastic housing PBT, M20 x 1.5 cable entry Plastic housing PBT, 1/2“ NPT cable entry Aluminium housing, M20 x 1.5 cable entry G - Process fitting G 11/2 A N - Process fitting 1 1/2“ 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.
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.
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) 4 2 2 Sensor cables should be screened. Grounding of the cable screens at both ends is recommended. However make sure that no earth compensation currents flow via the screens (see chapter "5.
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.
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.
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.
Technical data 3 Technical data 3.1 Data Power supply Supply voltage - VEGASCAN 850 - sensors Min. sensor voltage Power consumption - VEGASCAN 850 - VEGASON 51 … 53 - VEGASON 54 … 56 Current consumption - VEGASON 51 … 53 - VEGASON 54 … 56 Resistance of the signal cable per measuring data input 230 V AC, 50/60 Hz 115 V AC, 50/60 Hz sensor power supply is provided via the VEGASCAN 850 processing system with max. 1 … 15 sensors per two-wire cable 17 V max. 70 VA 81 mW max. 1.5 W peak power approx.
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 - solids VEGASON 52 - liquids - solids VEGASON 53 - liquids - solids VEGASON 54 in general VEGASON 55 in general VEGASON 56 - version A - version B … D 0.25 … 4 m 0.3 … 2 m 0.4 … 7 m 0.5 … 3.5 m 0.6 … 15 0.75 … 7 1.0 … 25 0.8 … 45 m m m m 1.8 … 70 m 1.
Technical data Output signal of VEGASCAN (depending on the ordered instrument version) Siemens 3964 - interfaces - transmission rates - transmission mode - coding system - number of bits - parity - backup VEGA-ASCII - interfaces - transmission rates - transmission mode - coding system - number of bits - parity - backup Modbus - interfaces - transmission rates - transmission mode - coding system RTU-Mode ASCII-Mode - parity - backup RTU-Mode ASCII-Mode Profibus DP and FMS - interfaces - transmission rates Pr
Technical data Display of measured value (optional) Liquid-crystal display - in sensor - powered externally by the sensor scalable output of measured values as graph and digital value 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.
Technical data Accuracy 1) (typical values under reference conditions relating to the nominal measuring range) Characteristics Deviation in characteristics including linearity, repeatability and hysteresis (determined acc. to the limit point method) Linearity Average temperature coefficient of the zero signal Resolution Resolution of the output signal - VEGASON 51 … 54 - VEGASON 55 and 56 linear < 0.1 % better than 0.05 % 0.06 %/10 K max. 1 mm 0.01 % or 1 mm 0.
Technical data Ex technical data (note approval documents) Classification Temperature class (permissible ambient temperature on the transducer when used in Ex areas) - T6 - T5, T4, T3 Ex approved in category or zone - VEGASON 51, 52, 56 ATEX IEC, CENELEC, PTB - VEGASON 51 … 56 ATEX IEC, CENELEC, PTB m (die casting of the transducer) supply with increased safety 45°C 60°C Zone 1 (II 2G) Zone 1 Zone 21/22 (II 2D/3D) Zone 10/11 Process fittings VEGASON VEGASON VEGASON VEGASON VEGASON VEGASON 51 52 53 54 5
Technical data Materials Housing Process fitting - VEGASON 51, 52 - VEGASON 53 - VEGASON 54 … 56 Transducer - VEGASON 51, 52 - VEGASON 53 - VEGASON 54 - VEGASON 55, 56 Transducer diaphragm - VEGASON 51, 52 - VEGASON 53 - VEGASON 54 - VEGASON 55 - VEGASON 56 Transducer cable (cable cover) - VEGASON 54, 55 - VEGASON 56 PBT (Valox) or Aluminium PVDF (thread) PP or 1.4571 (compression flange) 1.
Technical data 3.
Technical data External indicating instrument VEGADIS 50 82 38 85 118 108 135 10 48 ø5 Pg 13,5 Mounting on carrier rail 35 x 7.5 acc. to EN 50 022 or flat screwed Note: The diameter of the connection cable must be 5 … 9 mm. Otherwise the seal effect of the cable entry will not be ensured. Tank 1 - m (d) 12.
Technical data VEGASON 51 Housing PBT 201 10˚ 322 101 228 182 M20x1,5 2 315 90 165 SW 60 20 G 1½ A/ 1½" NPT Min. distance to the medium 0,25 m Reference plane ø 40 Housing aluminium 215 25 116 252 M20x1,5 337 205 370 185 SW 60 2 102 20 G 1½ A/ 1½" NPT ø 40 Min.
Technical data VEGASON 52 Housing PBT 201 10˚ 322 101 232 182 M20x1,5 2 SW 60 315 90 165 20 G2A Reference plane 0,4 m ø 50 Min. distance to the medium Housing aluminium 215 25 116 256 M20x1,5 337 205 370 185 SW 60 2 102 20 G2A ø 50 Min.
Technical data VEGASON 53 201 130 101 10˚ 322 20 90 218 165 270 195 182 M20x1,5 ø 148 ø 158 VEGASCAN 850 118 Min.
Technical data VEGASON 54 … 56 in version A 201 Aluminium housing (Al) 165 10˚ Plastic housing (PBT) 25 116 215 185 397 445,8 101 282 257 90 110 (126)1) 75 12xø22 VEGASON 54 20 1,0 m ø190 (ø196)1) Reference plane ø340 Min. distance to the medium 12xø26 Reference plane 128 20 0,8 m VEGASON 55 ø244 ø405 Min. distance to the medium 12xø22 (12xø26) 20 Reference plane 1,8 m 423 VEGASON 56 Min.
Technical data VEGASON 54 … 56 in version B 201 Aluminium housing (Al) Plastic housing (PBT) 165 215 435 10˚ 25 185 116 270 245 386 101 65 90 Plug connection Plug connection ø 27 ø165 ø122,8 ø165 ø122,8 11,5 4xø19 4xø19 ø165 11,5 503 >ø250 ø190 (ø 484,5 189,5 172 >ø210 4xø19 798 486 ø122,8 > ø200 ø 244 VEGASON 54 0,8 m 1,0 m 196) Reference plane ø 198 1,4 m VEGASON 55 VEGASON 56 VEGASCAN 850 31
Technical data VEGASON 54 … 56 in Version C Aluminium housing (Al) Plug 25 215 185 116 445,8 68 7 78 282 ø 45 85 65 ø7 120 170 130 150 10 0,8 m 1,0 m Plug connection VEGASON 54 VEGASON 55 1,4 m Refe renc e pla ne VEGASON 56 32 VEGASCAN 850
Technical data VEGASON 54 … 56 in version D 201 Plastic housing (PBT) 186 101 165 10˚ Plug 397,2 68 257,2 90 85 65 7 78 ø 45 120 170 130 150 10 40 32 233 167,5 40 32 214 149 527 462,5 40 32 Plug connection ø7 VEGASON 54 VEGASCAN 850 VEGASON 55 1,4 m 0,8 m 1,0 m Reference plane VEGASON 56 33
Mounting and installation 4 Mounting and installation 4.1 Mounting VEGASON 54 … 56 VEGASON 54 … 56, version A Sensors in version A (flange version) are supplied completely mounted and ready for operation. Immediately after mounting on the vessel and electrical connection, they are ready for operation.
Mounting and installation VEGASON 54 … 56, version C, D The sensors in version C and D are supplied in three parts (transducer, sensor electronics and transducer cable). First mount the transducer (see version B). There is a four-pole jack at the transducer tube end. A respective counterpart to the jack is provided in the connection cylinder of the transducer cable. Insert the connection cylinder plug into the jack of the transducer tube.
Mounting and installation 4.2 General installation instructions Measuring range Beside other criteria, you select your instrument according to the required measuring range. The reference planes for the min. and max. distance to the product or solid is the VEGASON 51 transducer end. For VEGASON 54 ... 56 in version A the lower flange side on the sensor is the reference plane. Please note the information on the reference planes in chapter "3.2 Dimensions“. The max. filling depends on the required min.
Mounting and installation Beam angle and false echoes VEGASON 51 The ultrasonic impulses are focused by the transducer. The impulses leave the transducer in conical form similar to the beam pattern of a spotlight. Any object inside this emission cone will cause a false echo. Especially within the first few meters of the emission cone, pipes, struts, or other installations can interfere with the measurement.
Mounting and installation VEGASON 54 0m VEGASON 56 0m Meas. distance 50 % emitted power 100 % 4˚ emitted power 8˚ 25 m 0,9 2,0 2,0 0,9 0 Meas. distance m 50 % emitted power VEGASON 55 0m 6˚ 100 % emitted power 12˚ 70 m 7,5 50 % Meas.
Mounting and installation 4.3 Measurement of liquids Flat vessel top On flat vessels, the mounting is usually done on a very short DIN socket piece. Reference plane is the lower edge of the flange. The transducer should protrude out of the flange tube. Reference plane £ 60 mm Reference plane < 400 mm Min. distance 1.8 m Min. distance VEGASON 56 in flange version on short DIN socket piece VEGASON 53 on very short DIN socket piece A mounting location directly on the vessel top is ideal.
Mounting and installation Reference plane Swivelling holder < 60 mm Reference plane Reference plane Mounting of the transducer with 1“ thread (here belonging to VEGASON 54 version D) Dished tank ceiling Min. meas. distance 1.8 m Min. meas. distance 1.4 m Flange version and swivelling holder on flat vessel top It is also possible to mount the sensors with 11/2“ or 2“ thread to short socket pieces. On dished tank ceilings, please do not mount the instrument in the centre, but approx.
Mounting and installation Reference plane Reference plane £ 60 mm < 100 mm 1 1 /2 vessel radius /2 vessel radius VEGASON 54 version A on dished tank ceiling; the statements are also valid for VEGASON 55 VEGASON 53 on dished tank ceiling Open vessels Reference plane On open vessels, use of instruments on an extended mounting bracket is recommended. Mount the low-weight sensor onto such a bracket and ensure a sufficient distance to the vessel wall. < 400 mm Reference plane Min. meas.
Mounting and installation Pump shaft 4.4 Measurement of solids Narrow shafts and shaft-like openings (vessel openings) with very rough walls and shoulders make an ultrasonic measurement extremely difficult due to strong false echoes. This problem can be overcome by using an extended socket piece or a complete measuring tube (see chapter "4.5 Socket extension“). Flange mounting see “4.
Mounting and installation Mounting boss Reference plane Reference plane Min. distance Min. distance VEGASON 53 on swivelling holder VEGASON 51 or 52 on the mounting boss. The socket axis should point directly to the product surface. This is why VEGASON 51 and 52 are less suitable for solids. Reference plane Min. distance Reference plane Min. distance VEGASON 54C with adapter flange and swivelling holder on a DN 200 vessel flange VEGASON 56 in 1“ mounting boss.
Mounting and installation Material heaps 4.5 Socket extensions Large material heaps are best detected with several instruments, which can be mounted on e.g. traverse cranes. For this type of application, it is advantageous to orient the sensor directly toward the solid surface. The ultrasonic sensors require a min. distance to the liquid or solid product. Take the min. distance into account in your planning. In some situations, it is possible to reach the required min.
Mounting and installation Socket extensions for solids For solids, use a conical socket extension with a taper of at least 15° … 20°. Type 53 Type 51/52 L L 45˚ 45˚ ø ø 15˚ 15˚ Socket extensions in liquids Max.
Mounting and installation 4.6 Flow measurement Khafagi-Venturi flume The short examples on this page are only basic information on flow measurement. You can get complete planning information from the flume manufacturers and in special literature. - Installation of the sensor on the inlet side - Note distance to the Khafagi-Venturi flume (3 … 4 x hmax) - Installation perpendicular to the liquid surface - Keep min.
Mounting and installation 4.7 False echoes Vessel installations The mounting location of the ultrasonic sensor must be selected such that no installations or inflowing material are in the path of the ultrasonic impulses. The following examples and instructions show the most frequent measuring problems and how to avoid them. Vessel installations such as, for example, a ladder, often cause false echoes.
Mounting and installation Inflowing material Do not mount the instrument in or above the filling stream. Ensure that you detect the product surface and not the inflowing material. Correct Correct Correct Wrong Wrong Wrong Buildup Overflow basin The expected max. high water determines the installation height, to ensure the min. distance of the transducer even with the highest water level.
Mounting and installation Strong product movements Heavy turbulences in the vessel, e.g. by strong stirrers or strong chemical reactions, can seriously interfere with the measurement. A surge or bypass tube of sufficient size (DN 200, DN 250) always allows, provided the product causes no buildup in the tube, a reliable measurement even with strong turbulences in the vessel. 4.8 Incorrect mounting Foam generation Thick foam on the product can cause incorrect measurements.
Mounting and installation Strong heat fluctuations Strong heat fluctuations, e.g. due to the sun, cause measuring errors. Please provide a sun shield. Shield If the sensor is mounted too close to the vessel wall (dimension A in diagram), strong false echoes can be caused. Buildup, rivets, screws or weld joints on the vessel wall superimpose their echoes onto the product or useful echo.
Mounting and installation Distance of the transducer to the vessel wall A 1m 2m 3m 4m 5m Curve 1 (liquids) Parabolic effects of rounded or arched vessel tops Round or parabolic tank tops act on the signals like a parabolic mirror. If the sensor is placed at the focal point of such a parabolic tank top, the sensor receives amplified false echoes. The optimum location is generally in the area of half the vessel radius from the centre.
Mounting and installation Socket piece too long If the sensor is mounted in a socket extension that is too long, strong false echoes are caused, and measurement is hindered. Make sure that the transducer protrudes at least 30 mm out of the socket piece.
Electrical connection 5 Electrical connection 5.1 Connection, connection cable and shielding Qualified personnel Instruments which are not operated with protective low voltage or DC voltage must only be connected by qualified personnel. This is especially valid for the connection of the power supply on VEGASCAN. Transducer cable When wiring the transducer cable (version C and D), strong bending of the cable should be avoided. This is a special cable which can be damaged.
Electrical connection We recommend a screening on both ends, see the following sketch. Screening is a good preventative measure against future sources of interference. However, you must make sure that no ground potential currents flow through the sensor cable shields. Ground potential currents can be avoided by potential equalisation cables. When grounding at both ends, it is possible to connect the cable shield on one side (e.g. in the switching cabinet) via a capacitor (e.g. 0.
Electrical connection Radial arrangement of sensors Grounding on at least two ends, on VEGASCAN and once on the sensor star, i.e. on the longest sensor line. If the individual sensor lines are longer than approx. 15 m, a grounding of each longer line should be made via a ground capacitor.
Electrical connection 5.2 Connection of the sensor After mounting the sensor at the measurement location according to the instructions in chapter "4 Mounting and installation“, loosen the closing screw on top of the sensor. The sensor lid with the optional indication display can then be opened. Unscrew the sleeve nut and slip it over the connection cable (after removing about 10 cm of insulation). The sleeve nut of the cable entry has a self-locking ratchet that prevents it from opening on its own.
Electrical connection 5.3 Connection of the external indicating instrument VEGADIS 50 Loosen the four screws of the housing cover on VEGADIS 50. The connection procedure can be facilitated by fixing the housing cover during connection work with one or two screws on the right of the housing (figure). VEGADIS 50 Adjustment module OUTPUT (to the sensor) 2 1 3 4 5 6 7 8 DISPLAY Tank 1 m (d) 12.345 - + ESC OK Screws (in the cover of the indicating instrument) Voltage supply and digital meas.
Electrical connection 5.4 Connection of the sensors to VEGASCAN 850 The electrical connection is made by spring terminals. The clamping opening can be opened with a small screwdriver by inserting it into the opening slot above the clamping position and pushing upwards. Then the terminal and the copper core of the connection wire can be inserted.
Electrical connection 5.5 Signal output/Interface connection 5.6 Connection of the PC to VEGASCAN 850 The connection terminal is labelled for the field bus cable according to the selected interface and instrument version. The PC with the adjustment software VVO can be connected in the front panel or in the terminal compartment of VEGASCAN. For connection of the PC in the front panel (9pole socket) you require a standard RS 232 DTE-DTE (Data Terminal Equipment) interface cable.
Setup 6 Setup 6.1 Adjustment methods VEGASCAN 850 and the series 50 ultrasonic sensors are adjusted with the PC (adjustment program VVO). With the detachable adjustment module MINICOM, it is possible to adjust the sensors individually. The adjustment can be carried out with only one adjustment instrument at a time.
Setup 6.2 Adjustment with the PC In the following setup and adjustment instructions you will find information on the following topics and adjustment points: • Configuration - configuration info - create new measurement loop • Parameter adjustment 1 - adjustment - scaling • Sensor optimisation - meas. environment - sound velocity - echo curve - false echo storage • Parameter adjustment 2 (optional) - linearisation - parameter adjustment sensor display - meas.
Setup - Adjustment with the PC • First start the adjustment software VVO on your PC. • Choose with the arrow keys or the mouse the item "Planning“ on the entrance screen and click to "OK“. In the next window you are asked for the user identification. If the VVO (adjustment software) gets in contact with VEGASCAN for the first time, you are asked if you want to transfer the data from VEGASCAN to the PC. • Click to "YES“. • Enter under name "VEGA. • Also enter "VEGA under password.
Setup - Adjustment with the PC Configuration During the setup of VEGASCAN you are confronted with two terms: "Configuration“ and "Parameter adjustment“. The meas. system VEGASCAN is first set up with a configuration and then with a parameter adjustment. Note: If you get no sensor connection, check the following: - Is the sensor being supplied with voltage from VEGASCAN (min.
Setup - Adjustment with the PC Configuration info • Choose the menu ing system. "Configuration/Measur- • Save your password with "Save“ and you are again in the initial menu of the configuration. Communication • Click in the menu window "Configuration measuring system “ to "Communication“. You reach the menu window "Configuration measuring system“. Here you get all information on the connected VEGASCAN. User authorisation Unauthorised access to VEGASCAN can be prevented by a password.
Setup - Adjustment with the PC You get an overview of the sensors connected to the VBUS1 terminal position and their configuration status. If a sensor was logged in as described in the following menu "Measurement loop/New“, the status "Configure“ is written in the sensor overview. Create new measurement loop • Choose the menu "Configuration/Measurement loop/New“. • In the menu window "Create new measurement loop“, you choose "a new application“ with "OK “.
Setup - Adjustment with the PC • Choose the serial number of the sensor to be assigned and confirm with "OK“. The menu window "Create new measurement loop - Measurement loop designation“ opens. In the menu window "Create Enter here the measurement loop number and a measurement loop description. new measure- “, the VBUS number and the serial number of the sensor are displayed instead of "not configured“.
Setup - Adjustment with the PC • Confirm the adjustment with "OK“. In the menu "Configuration/Measuring system“ you now see the configured sensors. • Also here confirm with "OK “ and you are again in the initial window "Create new measurement loop - Measurement loop designation“, in which the measurement loop number and the previously entered measurement loop description are now displayed. • Click to "OK “ and you are again in the main menu window.
Setup - Adjustment with the PC Parameter adjustment 1 In the menu "Instrument data/Parameter adjustment“ you carry out all important sensor adjustments. • Then click to "OK“, the menu window "Instrument data parameter adjustment“ opens. Adjustment • Choose the menu "Instrument data/Parameter adjustment“ and then the sensor you want to adjust. • Click to "Adjustment“. In the opening menu window, you now see the previously entered measurement loop names and the measurement loop descriptions.
Setup - Adjustment with the PC You can carry out the min./max. adjustment "with medium“ (adjustment by means of the actual level) or "without medium“ (without taking the actual level into consideration, i.e. with empty vessel). Generally, you will carry out the adjustment without medium. Then you are not concerned about the actual vessel filling during adjustment. When you want to carry out the adjustment with medium, you have to carry out the min.
Setup - Adjustment with the PC In the menu "Instrument data/Parameter adjustment/Conditioning/Linearisation“ you can enter later, if necessary, a correlation between product distance and percent value of volume other than linear (see later subitem linearisation). Scaling • Click in the menu window "Instrument data parameter adjustment“ to "Conditioning“. The menu window "Conditioning“ opens.
Setup - Adjustment with the PC Sensor optimisation The window "Meas. environment“ opens. In the menu "Sensor optimisation“ you can adapt the sensor to the environment. Here you carry out special optimising adjustments and optimise, e.g. by means of the echo curve, the mounting location of the sensor. Meas.
Setup - Adjustment with the PC Meas. environment/Meas. conditions • Click in the window "Meas. environment“ to "Measuring conditions. • Confirm with "OK “. • Click in the menu window "Meas. environment“ to "Quit. You are again in the menu window "Sensor optimisation“. • In the menu window "Measuring conditions“ you click on the options corresponding to your application. • Confirm with "OK.
Setup - Adjustment with the PC • Quit the menu "Echo curve“ with "Quit . False echo storage In the illustration, you see the echo curve (before correction of the sensor orientation) with a false echo nearly as large as the product echo. With the menu item "False echo storage“ in the menu "Sensor optimisation“ you can authorise the sensor to save false echoes. The sensor electronics then saves the false echoes in an internal database and assigns them a lower level of importance than the useful echo.
Setup - Adjustment with the PC • Now click in the opening menu window "False echo storage“ to "Learn false echoes. A small window opens. • Enter here the verified product distance and click to "Create new. You hereby authorise the sensor to mark all echoes before the product echo as false echoes. This prevents the sensor from erroneously detecting a false echo as level echo. • Quit the menu with "Quit . You are again in the menu window "Sensor optimisation“.
Setup - Adjustment with the PC Parameter adjustment 2 Linearisation The relation between level and filling volume is described with so-called linearisation curves. If, in your vessel, there is a correlation other than linear between level ("Percentage value“ of the level) and the filling volume (value of the filling volume), choose in the menu window "Conditioning“ the menu item "Instrument data/Parameter adjustment/Conditioning“.
Setup - Adjustment with the PC The user programmable linearisation curve is generated by index markers. Each index marker consists of one value pair. A value pair is generated out of a value "Linearised“ and a value "Percentage value“ . "Percentage value“ represents the percentage value of the level. "Linearised“ represents the percentage vessel volume at a certain percentage value of the level. The percentage value of 95.79 % means that now 4.387 m of the adjusted measuring span (4.58 m) are reached: 4.
Setup - Adjustment with the PC Index marker 1 is at 0 % filling (percentage value [%]), corresponding in the example to an actual distance to the product surface of 5.850 m (empty vessel). The volume quantity is 45 liters (fluid remaining in the vessel). Index marker 2 is at a filling level of 30 % (30 % of the meas. distance of 1.270 m … 5.850 m). At a filling level of 30 %, there are 576 liters in the vessel (in our example). Index marker 3 is at a filling level of 60 %.
Setup - Adjustment with the PC You are again in the menu window "Tank calculation“. • Click to "OK to save the tank calculation. • Click to "Calculate. You are again in the menu window "Linearisation -- user programmable curve --“. The volume percent values to the percentage values of the level are shown. When clicking the bottom left menu window "Show in scaled values“, liters will be displayed depending on the adjustment in the menu "Instrument data/ Parameter adjustment/Conditioning/Scaling“.
Setup - Adjustment with the PC The menu window for the adjustment of the cylindrical tank opens. Above the information "All dimensions are internal dimensions“, you will find two fields with the percentage values 0 % and 100 %. Here you can shift the 100 % line or the 0 % line. In the example, the 100 % filling line was defined at a distance of 650 mm from the upper vessel edge (inner). • Choose the measuring unit which should be used for the input of the vessel dimensions, e.g. mm.
Setup - Adjustment with the PC There is a linear interpolation between the linearisation points. • Click to "OK and you are again in the menu window "Tank calculation“. • Again click in the menu window "Tank calculation“ to "OK and you are in the linearisation menu. The sensor then outputs the actual filling volume by means of the adjusted vessel dimensions. Here the calculated linearisation curve is again outputted.
Setup - Adjustment with the PC Parameter adjustment sensor display Meas. loop data In the menu item "Outputs“ you choose the scale and the unit in which your level should be displayed. • Click in the window "Instrument data parameter adjustment“ to "Meas. loop data“. • Choose in the main menu window "Instrument data/Parameter adjustment“ and then the menu item "Outputs“. • Then click to "Application“, "Input no.
Setup - Adjustment with the PC Show measured value Simulation • Click in the main menu window to the menu "Display/Display of measured value“ and choose the measurement loop or the sensor to be displayed. • Click to the menu "Diagnostics/Simulation and choose the measurement loop. The menu window "Simulation of outputs“, similar to the previous menu window, opens.
Setup - Adjustment with the PC Choose available linearisation curve On the previous pages, the entering or the calculation of a linearisation curve was shown as an example. In this menu item, you can choose from the available predefined or userentered linearisation curves. The grey scrollbar becomes active. With this scrollbar your can modify the measured value in the range of -10 % … 110 % and thereby simulate the filling or emptying of the vessel.
Setup - Adjustment with the PC Print configuration and adjustments • Click to "Services/Print“. With the menu "View“ you can have the adjustments displayed in detail. Before printing the complete configuration of VEGASCAN and all sensors, you can have a look at the individual pages and … … then print everything or just certain pages.
Setup - Adjustment with the PC Backup With the menu items "Services/Backup/Signal conditioning instruments“ and "Services/ Backup/Sensors“ you save the configuration and parameter settings of VEGASCAN and of each sensor. The settings can later be quickly transferred to new sensors, e.g. in case of a sensor exchange, or certain product settings can be quickly carried out. This is done in the menu "Services/Restore configuration“. For further information take the manual "VEGA Visual Operating“ (VVO).
Setup - Sensor adjustment with the adjustment module MINICOM 6.3 Sensor adjustment with the adjustment module MINICOM Tank 1 m (d) 12.345 - + ESC OK Beside the PC, the ultrasonic sensors VEGASON 51V … 56V can also be adjusted with the small, detachable adjustment module MINICOM in the sensor. Only the sensor-relevant adjustments such as e.g. scaling of the sensor display, operating range, meas. conditions, sensor display scaling or false echo storage are possible with the adjustment module MINICOM.
Setup - Sensor adjustment with the adjustment module MINICOM 3. Meas. conditions Here you inform each sensor under which application conditions the measurement is carried out, e.g. measurement in gas compositions deviating from air, which will influence the running time of the ultrasonic signals or if a liquid (hard echo) or a solid (weak echo) should be measured. Example: Ampl. = 68 dB S-N = 53 dB 68 dB – 53 dB = 15 dB noise level 53 dB signal level difference indicates very high measurement reliability.
Setup - Sensor adjustment with the adjustment module MINICOM Menu schematic of the adjustment module MINICOM Sensor SON52 V 1.00 m(d) 4.700 Parameter When switching on, the sensor type and the software version are displayed for a few seconds. Configuration Sensor optimise Sensor Tag Sensor Meas. unit m (d) 4. Meas. enviro nment 2. False echo memory Meas. condit ions Operating rage Begin m (d) 0.50 End m (d) 6.00 1. Create new Update ‘Delete Meas. dist. m (d) 4.700 Meas. dist. m (d) X.
Setup - Sensor adjustment with the adjustment module MINICOM With these keys you move in the menu field to the left, right, top and bottom ESC OK Add´l functions Info 5. Basic Reset Distance m (d) 4.700 Ampl.: XX dB S-N: XX dB Basic reset Language English Reset Now ! OK ? Reset Now! OK ? Reseting reseting Sensor Tag Sensor typ SON Sensor 52 V Meas. dist. X,XX Fast change Menu items in bolt print provide sensor and measured value information and cannot be modified in this position.
Diagnostics 7 Diagnostics Simulation with VVO If you start the simulation mode with the adjustment program VVO on the PC, the simulated level is outputted until you quit the simulation mode. 7.1 Simulation For simulation of a certain filling, you can call up the function "Simulation“ on the adjustment module MINICOM, in the software program VVO or on the signal conditioning instrument. You simulate a vessel filling and thereby a certain sensor current. Please note that connected instruments, such as e.g.
Notes VEGASCAN 850 91
VEGA Grieshaber KG Am Hohenstein 113 D-77761 Schiltach Phone (0 78 36) 50 - 0 Fax (0 78 36) 50 - 201 e-mail info@vega-g.de internet www.vega-g.de ISO 9001 The statements on types, application, use and operating conditions of the sensors and processing systems correspond to the latest information at the time of printing. Technical data subject to alterations 2.
