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Vega VEGAFLEX 81 Operating Instructions Manual

Manual is about: TDR sensor for continuous level and interface measurement of liquids

Summary of VEGAFLEX 81

  • Page 1

    Operating instructions tdr sensor for continuous level and interface measurement of liquids vegaflex 81 4 … 20 ma/hart - four-wire coax probe document id: 42280

  • Page 2: Contents

    2 contents vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 contents 1 about this document 1.1 function ........................................................................................................................... 4 1.2 target group ................................................

  • Page 3

    3 contents vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 9.4 rectify faults ................................................................................................................... 58 9.5 exchanging the electronics module ...........................................................

  • Page 4: 1  About This Document

    4 1 about this document vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 1 about this document 1.1 function this operating instructions manual provides all the information you need for mounting, connection and setup as well as important instruc- tionsformaintenanceandfaultrectification.Pleas...

  • Page 5: 2  For Your Safety

    5 2 for your safety vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 2 for your safety 2.1 authorised personnel all operations described in this operating instructions manual must be carried out only by trained specialist personnel authorised by the plant operator. During work on and with th...

  • Page 6

    6 2 for your safety vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 youcanfindthececertificateofconformityinthedownloadsection of our homepage. Electromagnetic compatibility instruments in four-wire or ex-d-ia version are designed for use in an industrial environment. Nevertheless, electrom...

  • Page 7: 3  Product Description

    7 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 3 product description 3.1 configuration thetypelabelcontainsthemostimportantdataforidentificationand use of the instrument: 2 1 13 14 15 16 12 11 5 3 6 4 7 8 9 10 fig. 1: layout of the type label (example) 1 instrument ...

  • Page 8

    8 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 • scan the data matrix code on the type label of the instrument or • enter the serial number manually in the app this operating instructions manual applies to the following instrument versions: • hardware from 1.0.0 • s...

  • Page 9

    9 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 d h 1 fig. 2: level measurement 1 sensorreferenceplane(sealsurfaceoftheprocessfitting) d distancetothelevel(hartvalue1) h height - level probe end tracking to increase sensitivity, the probe is equipped with probe end t...

  • Page 10

    10 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 ts d1 h1 h2 d2 1 l2 l1 l3 fig. 3: interface measurement 1 sensorreferenceplane(sealsurfaceoftheprocessfitting) d1 distancetotheinterface(hartvalue1) d2 distancetothelevel(hartvalue3) tsthicknessoftheuppermedium(d1-d2) ...

  • Page 11

    11 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the instrument is always preset to the application "level measure- ment". For the interface measurement, you can select the requested output signal with the setup. 3.3 packaging, transport and storage your instrument w...

  • Page 12

    12 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the vegadis 81 is an external display and adjustment unit for vega plics ® sensors. For sensors with double chamber housing the interface adapter "disadapt" is also required for vegadis 81. Youcanfindfurtherinformation...

  • Page 13

    13 3 product description vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 if the standard sensor housing is too big or in case of strong vibra- tions, an external housing can be used. Then the sensor housing is made of stainless steel. The electronics is located in the external housing which...

  • Page 14: 4 Mounting

    14 4 mounting vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 4 mounting 4.1 general instructions oninstrumentswiththreadedprocessfitting,thehexagonmustbe tightenedwithasuitablewrench.Fortheproperwrenchsizesee chapter "dimensions". Warning: the housing must not be used to screw the instrume...

  • Page 15

    15 4 mounting vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 youcanfinddetailedinformationontheprocessconditionsinchapter "technicaldata" as well as on the type label. 4.2 mounting instructions in vessels with conical bottom it can be advantageous to mount the sensor in the center of the v...

  • Page 16

    16 4 mounting vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 fig.5:mountingofthesensorwithinflowingmedium the reference plane for the measuring range of the sensors is the sealingsurfaceofthethreadorflange. Keep in mind that a min. Distance must be maintained below the refer- ence plane an...

  • Page 17

    17 4 mounting vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 1 2 1 2 fig. 6: fasten the probe 1 coaxprobe 2 retaining sleeve.

  • Page 18

    18 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 5 connecting to power supply 5.1 preparing the connection always keep in mind the following safety instructions: warning: connect only in the complete absence of line voltage. • the electrical connection must on...

  • Page 19

    19 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 npt thread in the case of instrument housings with self-sealing npt threads, it is not possible to have the cable entries screwed in at the factory. The free openings for the cable glands are therefore covered w...

  • Page 20

    20 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 3. Remove approx. 10 cm (4 in) of the cable mantle (signal output), strip approx. 1 cm (0.4 in) insulation from the ends of the indi- vidual wires 4. Insert the cable into the sensor through the cable entry fig....

  • Page 21

    21 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 5.3 wiring plan, double chamber housing the following illustrations apply to the non-ex as well as to the ex-d-ia version. 5 6 7 8 4...20ma 2 1 1 1 2 + ( ) (-) fig.8:electronicscompartment,doublechamberhousing 1...

  • Page 22

    22 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 power supply 4...20ma active passive common is gnd 5 1 /l /n 2 + ( ) (-) 6 7 8 fig.10:connectioncompartmentwithdoublechamberhousingwithlowvolt- age terminal function polarity 1 voltage supply +/l 2 voltage suppl...

  • Page 23

    23 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 3 4 1 2 fig. 12: view to the plug connector m12 x 1 1 pin 1 2 pin 2 3 pin 3 4 pin 4 contact pin colour connection ca- ble in the sensor terminal, electronics module pin 1 brown 5 pin 2 white 6 pin 3 blue 7 pin 4...

  • Page 24

    24 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 1 usb status test sim-card 1 2 + ( ) (-) fig.14:radiomoduleplicsmobileintegratedintheconnectioncompart- ment 1 voltage supply youcanfinddetailedinformationonconnectioninthesupplementary instructions "plicsmobile...

  • Page 25: Module

    25 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 6 set up with the display and adjustment module 6.1 insert display and adjustment module the display and adjustment module can be inserted into the sensor andremovedagainatanytime.Youcanchoose...

  • Page 26

    26 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 1 2 fig. 16: installing the display and adjustment module in the double chamber housing 1 in the electronics compartment 2 in the terminal compartment note: ifyouintendtoretrofittheinstrumentw...

  • Page 27

    27 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 – move to the menu overview – confirmselectedmenu – edit parameter – save value • [->] key: – change measured value presentation – select list entry – select editing position • [+] key: – chan...

  • Page 28

    28 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 6.3 parameter adjustment - quick setup to quickly and easily adapt the sensor to the application, select the menu item "quick setup" in the start graphic on the display and adjustment module. ...

  • Page 29

    29 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 info: instrument name, hardware and software version, date of manu- facture, instrument features note: for optimum adjustment of the measuring point, the individual sub- menu items in the main...

  • Page 30

    30 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 coaxprobescanbeonlyusedinliquids.Inthismenuitem,thefixed adjusted medium type "liquid" is displayed. In this menu item, you can select the application. You can choose between level measurement...

  • Page 31

    31 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 this menu item is only available if you have selected interface meas- urement under the menu item "application". In this menu item you can choose the type of medium of the upper medium. You ca...

  • Page 32

    32 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 enter the suitable distance value in m for the empty vessel (e.G. Distancefromtheflangetotheprobeend)correspondingtotheper- centage value. The distance refers tot he sensor reference plane (se...

  • Page 33

    33 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 enter the respective distance value in m for the empty vessel cor- responding to the percentage value. Todampprocess-dependentmeasuredvaluefluctuations,setan integration time of 0 … 999 s in t...

  • Page 34

    34 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 + h d - h fig. 18: vessel height and socket correction value d vessel height +h positive socket correction value -h negative socket correction value in the menu item "currentoutputmode" you de...

  • Page 35

    35 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the default setting is min. Current 3.8 ma and max. Current 20.5 ma. Thefollowingcircumstancescauseinterferingreflectionsandcan influencethemeasurement: • high sockets • vessel internals such ...

  • Page 36

    36 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 with active pin, only the following adjustment functions are possible without entering a pin: • select menu items and show data • read data from the sensor into the display and adjustment mod-...

  • Page 37

    37 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the default setting for the displayed value 1 is "filling height level". Inthismenuitem,youdefinetheindicationofthemeasuredvalue onthedisplay.Youcandisplaytwodifferentmeasuredvalues.Inthis men...

  • Page 38

    38 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the respective min. And max. Measured values are saved in the sensor. The two values are displayed in the menu item "peak values, measurement certainty". Themeasurementcanbeinfluencedbytheproc...

  • Page 39

    39 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 • "unzoom":resetthepresentationtothenominalmeasuringrange withoutmagnification in this menu item you can simulate measured values via the current output. This allows the signal path to be test...

  • Page 40

    40 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 with the adjustment software pactware and the pc the high-reso- lution echo curve can be displayed and used later on to assess the quality of the measurement. In this menu item, the internal c...

  • Page 41

    41 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 menu item default value modifiedvalue medium, dielectric constant water-based, > 10 superimposed gas phase yes dielectric constant, upper medium (ts) 1.5 tube inner diameter 200 mm max. Adjust...

  • Page 42

    42 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 menu item default value modifiedvalue current output - max. 20.5 ma current output 2 - output variable second hart variable (sv) distance - level current output 2 - output characteristics 0 … ...

  • Page 43

    43 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 additional adjustments menu item default value modifiedvalue pin 0000 date actual date time actual time time - format 24 hours probe type device-specific the instrument settings are copied wit...

  • Page 44

    44 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 since scaling is very extensive, scaling of the level value was divided into two menu items. In menu item "level 2"youdefinethescalingformatonthedisplay and the scaling of the measured level v...

  • Page 45

    45 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 in menu item "currentoutput,variable" you specify which measured variable the current output refers to. In menu item "currentoutput,adjustment" you can assign a respec- tive measured value to ...

  • Page 46

    46 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 in this menu, you read out the instrument name and the instrument serial number. In this menu item, the hardware and software version of the sensor is displayed. In this menu item, the date of...

  • Page 47: 7  Setup With Pactware

    47 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 7 setup with pactware 7.1 connect the pc 3 1 2 fig.19:connectionofthepcdirectlytothesensorviatheinterfaceadapter 1 usbcabletothepc 2 interfaceadaptervegaconnect 3 sensor 1 6 2 4 7 5 3 open twist usb lock fig.20:connect...

  • Page 48

    48 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 • pc with pactware and suitable vega dtm • vegaconnect • hartresistanceapprox.250Ω • processing system/plc note: with power supply units with integrated hart resistance (internal resistanceapprox.250Ω),anadditionalexte...

  • Page 49

    49 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 fig.21:exampleofadtmview all device dtms are available as a free-of-charge standard version and as a full version that must be purchased. In the standard version, all functions for complete setup are already included. ...

  • Page 50

    50 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 fig. 22: select quick setup 1 quick setup 2 extendedadjustment 3 maintenance quick setup with quick setup you can carry out the parameter adjustment of vegaflex 81 for your application in just a few simple steps. The a...

  • Page 51

    51 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 7.4 saving the parameter adjustment data we recommend documenting or saving the parameter adjustment data via pactware. That way the data are available for multiple use or service purposes..

  • Page 52

    52 8 set up with other systems vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 8 set up with other systems 8.1 dd adjustment programs device descriptions as enhanced device description (edd) are available for dd adjustment programs such as, for example, ams™ and pdm. Thefilescanbedownloaded...

  • Page 53

    53 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 9 diagnostics and servicing 9.1 maintenance if the instrument is used correctly, no maintenance is required in normal operation. 9.2 diagnosis memory the instrument has several memories which are available for di...

  • Page 54

    54 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 • control system with edd • display and adjustment module further echo curves: up to 10 echo curves can be stored in a ring bufferinthismemorysection.Furtherechocurvesarestoredvia: • pc with pactware/dtm • contro...

  • Page 55

    55 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 still valid. Plan in maintenance for the instrument because a failure is expected in the near future (e.G. Due to buildup). This status message is inactive by default. It can be activated by the user via pactware...

  • Page 56

    56 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 code text mes- sage cause rectification devspec state in cmd 48 f261 error in the instrument settings – error during setup – error when carrying out a reset – false signal suppression faulty – carry out a reset –...

  • Page 57

    57 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 code text mes- sage cause rectification devspec state in cmd 48 s602 level with- in the search range, com- pensation echo – compensation echo super- imposed by medium – 100 % adjustment: increase value bit 10 of ...

  • Page 58

    58 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 code text mes- sage cause rectification devspec state in cmd 48 m506 installation/ setup error – error during setup – check and correct instal- lation and/or parameter adjustment – check probe length bit 6 of byt...

  • Page 59

    59 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 the images in column "errorpattern" show the real level as a broken line and the level displayed by the sensor as a continuous line. 1 2 level time 0 fig.24:thebrokenline1showsthereallevel,thecontinuousline2shows...

  • Page 60

    60 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 fault description error pattern cause rectification 5. Measured value jumps sporadically to 100%duringfilling level time 0 – changing condensation or contamination on the probe – carry out a false signal sup- pre...

  • Page 61

    61 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 icsmodulesareadaptedtotherespectivesensoranddifferinsignal output or voltage supply. The new electronics module must be loaded with the default settings of the sensor. These are the options: • in the factory • or...

  • Page 62

    62 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 • attach the completed form and, if need be, also a safety data sheet outside on the packaging • please contact the agency serving you to get the address for thereturnshipment.Youcanfindtheagencyonourhomepage www...

  • Page 63: 10 Dismount

    63 10 dismount vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 10 dismount 10.1 dismounting steps warning: before dismounting, be aware of dangerous process conditions such as e.G. Pressure in the vessel or pipeline, high temperatures, cor- rosive or toxic products etc. Take note of chapter...

  • Page 64: 11 Supplement

    64 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 11 supplement 11.1 technical data general data 316l corresponds to 1.4404 or 1.4435 materials, wetted parts Ʋ processfitting 316l and peek, alloy c22 (2.4602) and peek Ʋ process seal on the instrument side (rod leadthrough) fk...

  • Page 65

    65 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 second line of defense (optional) Ʋ the second line of defense (slod) is a second level of the process separation in the form of a gas-tight feedthrough in the lower part of the housing, preventing product from penetrating int...

  • Page 66

    66 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 output variable output signals 4 … 20 ma/hart - active; 4 … 20 ma/hart - passive range of the output signal 3.8 … 20.5 ma/hart (default setting) terminal voltage passive 9 … 30 v dc shortcircuit protection available potential ...

  • Page 67

    67 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 2 4 5 3 1 2 4 5 3 1 fig.33:measuringranges-vegaflex81 1 reference plane 2 probe length l 3 measuring range (default setting refers to the measuring range in water) 4 upper dead band (see following diagrams - grey section) 5 lo...

  • Page 68

    68 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 l 0 -2 mm (-0.079 ") 2 mm (0.079 ") -10 mm (0.394 ") 5 mm (0.197 ") 0,15 m (5.906 " ) 0,03 m (1.181 " ) 0,05 m (1.969 ") 1 fig.34:deviationvegaflex81incoaxversioninwater 1 dead band - no measurement possible in this area l pro...

  • Page 69

    69 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 additional deviation through electromag- netic interference acc. To en 61326 influenceofthesuperimposedgasandpressuretotheaccuracy the propagation speed of the radar impulses in gas or vapour above the medium is reduced by hig...

  • Page 70

    70 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 Ʋ with borosilicate glass leadthrough -1 … +100 bar/-100 … +10000 kpa (-14.5…+1450psig),dependingontheprocessfitting vesselpressurerelatingtotheflange nominal pressure stage see supplementary instructions manual "flanges ac- c...

  • Page 71

    71 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 0°c / 32°f -40°c / -40°f 80°c / 176°f 35°c / 95°f 40°c / 104°f 30°c / 86°f 60°c / 140°f 200°c 392°f 150°c 302°f 100°c 212°f 50°c 122°f 80°c 176°f -20°c -4°f 1 2 3 4 a b fig. 37: ambient temperature - process temperature, versi...

  • Page 72

    72 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 Ʋ sizeofdigits w x h = 7 x 13 mm adjustment elements 4 keys protection rating Ʋ unassembled ip 20 Ʋ mounted in the housing without lid ip 40 materials Ʋ housing abs Ʋ inspection window polyester foil integrated clock date form...

  • Page 73

    73 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 protection rating (iec 61010-1) i approvals instrumentswithapprovalscanhavedifferenttechnicalspecificationsdependingontheversion. For that reason the associated approval documents of these instruments have to be carefully note...

  • Page 74

    74 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 vegaflex 81, coax version 1 2 l sw 36 (1.42") (g¾, ¾ npt) sw 41 (1.61") (g1, 1 npt) sw 46 (1.81") (g1½, 1½ npt) g¾, ¾ npt, g1, 1 npt, g1½, 1½ npt 46 mm (1.81") ø 21,3 mm (0.84") l 22mm (0.86") ø 42,2 mm (1.66") sw 55 (2.17") 5...

  • Page 75

    75 11 supplement vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 11.3 industrial property rights vega product lines are global protected by industrial property rights. Further information see www.Vega.Com. Vega produktfamilien sind weltweit geschützt durch gewerbliche schutzrechte. Nähere i...

  • Page 76: Index

    76 index vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 index a adjustment – max. Adjustment 31, 32 – min. Adjustment 31, 32 adjustment system 27 application 30, 31 application area 8 b backlight 37 c check output signal 58 connection cable 18 connection procedure 19 connection technology ...

  • Page 77

    77 index vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518 service hotline 60 simulation 39 special parameters 45 t terminal compartment – double chamber housing 21, 22 type label 7 type of medium 30 u units 29 v voltage supply 18, 72.

  • Page 78

    78 notes vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518.

  • Page 79

    79 notes vegaflex 81 • 4 … 20 ma/hart - four-wire 42280-en-160518.

  • Page 80

    Printing date: vega grieshaber kg am hohenstein 113 77761 schiltach germany 42280-en-160518 all statements concerning scope of delivery, application, practical use and operat- ing conditions of the sensors and processing systems correspond to the information available at the time of printing. Subjec...