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- VEGAFLEX 81
- Operating Instructions Manual
Vega VEGAFLEX 81 Operating Instructions Manual
Summary of VEGAFLEX 81
Page 1
Operating instructions tdr sensor for continuous level and interface measurement of liquids vegaflex 81 4 … 20 ma/hart - two-wire rod and cable probe document id: 41824.
Page 2: Contents
2 contents vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 contents 1 about this document 1.1 function ........................................................................................................................... 4 1.2 target group .................................................
Page 3
3 contents vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 9 diagnostics and servicing 9.1 maintenance .................................................................................................................. 60 9.2 diagnosis memory .....................................................
Page 4: 1 About This Document
4 1 about this document vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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.Please...
Page 5: 2 For Your Safety
5 2 for your safety vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 the...
Page 6
6 2 for your safety vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 youcanfindtheeuconformitydeclarationonourwebsiteunder www.Vega.Com/downloads. Electromagnetic compatibility instruments in four-wire or ex-d-ia version are designed for use in an industrial environment. Nevertheless, electro...
Page 7: 3 Product Description
7 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 t...
Page 8
8 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 • 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 • so...
Page 9
9 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 d h 1 fig. 2: level measurement 1 sensorreferenceplane(sealsurfaceoftheprocessfitting) d distance to the level h height - level high frequency microwave impulses are guided along a steel cable or rod. Upon reaching the p...
Page 10
10 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 upper medium (l2) • the upper medium must not be conductive • the dielectric constant of the upper medium or the actual distance to the interface must be known (input required). Min. Dielectric con- stant:1.6.Youcanfind...
Page 11
11 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 unless otherwise indicated, the packages must be stored only under the following conditions: • not in the open • dry and dust free • not exposed to corrosive media • protected against solar radiation • avoiding mechanic...
Page 12
12 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 plicsmobile t61 is an external gsm/gprs radio unit for transmis- sion of measured values and for remote parameter adjustment of plics ® sensors. Adjustment is carried out via pactware/dtm and the integrated usb connecti...
Page 13
13 3 product description vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 youcanfindfurtherinformationintheoperatinginstructionsmanual "rodandcablecomponentsvegaflex80series". The combination of a bypass tube and a vegaflex 81 enables con- tinuous level measurement outside the vessel. The byp...
Page 14: 4 Mounting
14 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 4 mounting 4.1 general instructions oninstrumentswiththreadedprocessfitting,thehexagonmustbe tightenedwithasuitablewrench.Fortheproperwrenchsizesee chapter "dimensions". Warning: the housing must not be used to screw the instrumen...
Page 15
15 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 youcanfinddetailedinformationontheprocessconditionsinchapter "technicaldata" as well as on the type label. 4.2 mounting instructions mount vegaflex 81 in such a way that the distance to vessel instal- lations or to the vessel wall...
Page 16
16 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 2 fig. 5: mounting in non-metallic vessel 1 flange 2 metal sheet ifpossible,avoidsockets.Mountthesensorflushwiththevesseltop. If this is not possible, use short sockets with small diameter. Higher sockets or sockets with a bigge...
Page 17
17 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 2 fig.7:socketmustbeinstalledflush 1 unfavourable mounting 2 socketflush-optimummounting before beginning the welding work, remove the electronics module from the sensor. By doing this, you avoid damage to the electronics throug...
Page 18
18 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in chapter "technicaldata". Keep in mind for the adjustment that the default setting for the measuring range refers to water. Theprocessfittingmustbesealedifthereisgaugeorlowpressurein the vessel. Before use, check if the seal mat...
Page 19
19 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 2 3 h fig. 9: mounting in a bypass tube - position of the spacer or the centering weight 1 rodprobewithspacer(peek) 2 cableprobewithcenteringweight 3 spacer(peek)onthegravityweightofacableprobe h measurable tube section note: me...
Page 20
20 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 ≥ 10 mm (0.39") ≥ 10 mm (0.39") ø 150 - 200 mm (5.91 - 7.87") ø 150 - 200 mm (5.91 - 7.87") h 1 2 a b 3 fig. 10: mounting in a standpipe 1 holes (for mixing) 2 standpipe - vertically mounted - max. Deviation 10 mm (0.4 in) 3 venti...
Page 21
21 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 with rod probes, a spacer is generally not required. However, if there is a risk of the rod probe being pressed against the tube wall by in- flowingmedium,youshouldmountaspacerattheprobeendtoavoid contact with the tube wall. In th...
Page 22
22 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 2 1 2 fig. 11: fasten the probe 1 measuring probe 2 retaining sleeve if there is a risk of the cable probe touching the vessel wall during operation due to product movements or agitators, etc., the measuring probe can be straine...
Page 23
23 4 mounting vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 incaseofdifficultinstallationconditions,theprobecanalsobe mounted laterally. For this, adapt the rod with rod extensions or angled segments. To compensate for the resulting changes in signal runtime, let the instrument determine t...
Page 24
24 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 onl...
Page 25
25 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 wi...
Page 26
26 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 3. Loosen compression nut of the cable gland and remove blind plug 4. Remove approx. 10 cm (4 in) of the cable mantle, strip approx. 1 cm (0.4 in) of insulation from the ends of the individual wires 5. Insert the...
Page 27
27 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 youcanfindfurtherinformationonthemax.Wirecross-sectionunder "technicaldata-electromechanicaldata" 7. Check the hold of the wires in the terminals by lightly pulling on them 8. Connect the screen to the internal g...
Page 28
28 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 5 6 7 8 4...20ma 1 2 + ( ) (-) 2 1 1 fig.16:electronicscompartment-doublechamberhousing 1 internal connection to the terminal compartment 2 for display and adjustment module or interface adapter 5 1 2 + ( ) (-) 6...
Page 29
29 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 5.5 wiring plan, ex-d-ia double chamber housing 3 1 2 5 6 7 8 1 2 ( ) (-) + 4...20ma fig.19:electronicscompartment-ex-d-iadoublechamberhousing 1 internal connection to the terminal compartment 2 for display and a...
Page 30
30 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 5.6 double chamber housing with vegadis-adapter 3 1 2 fig.21:viewtotheelectronicscompartmentwithvegadisadapterforconnec- tion of the external display and adjustment unit 1 vegadisadapter 2 internal plug connectio...
Page 31
31 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 5.7 wiring plan - version ip 66/ip 68, 1 bar 1 2 fig. 23: wire assignment in permanently connected connection cable 1 brown(+)andblue(-)topowersupplyortotheprocessingsystem 2 shielding 5.8 supplementary electroni...
Page 32
32 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 usb status test sim-card 1 2 + ( ) (-) fig.25:radiomoduleplicsmobileintegratedintheconnectioncompart- ment 1 voltage supply youcanfinddetailedinformationonconnectioninthesupplementary instructions "plicsmobileg...
Page 33: Module
33 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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.Youcanchoosea...
Page 34
34 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 1 2 fig. 27: installing the display and adjustment module in the double chamber housing 1 in the electronics compartment 2 in the terminal compartment note: ifyouintendtoretrofittheinstrumentwi...
Page 35
35 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 – move to the menu overview – confirmselectedmenu – edit parameter – save value • [->] key: – change measured value presentation – select list entry – select editing position • [+] key: – chang...
Page 36
36 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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. T...
Page 37
37 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 38
38 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in this menu item you can select which type of medium you want to measure. You can choose between liquid or bulk solid. In this menu item, you can select the application. You can choose between...
Page 39
39 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 this menu item is only available if you have selected interface meas- urement under the menu item "application". In this menu item you can enter the dielectric constant of the upper medium. You...
Page 40
40 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 (sea...
Page 41
41 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 the default setting is a damping of 0 s. A linearisation is necessary for all vessels in which the vessel volume doesnotincreaselinearlywiththelevel-e.G.Ahorizontalcylindri- cal or spherical ta...
Page 42
42 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 + h d - h fig. 29: 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 det...
Page 43
43 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 the default setting is min. Current 3.8 ma and max. Current 20.5 ma. Thefollowingcircumstancescauseinterferingreflectionsandcan influencethemeasurement: • high mounting sockets • vessel interna...
Page 44
44 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in the menu item "lock/unlockadjustment", you can protect the sen- sorparametersagainstunauthorizedorinadvertentmodification.The pin is activated/deactivated permanently. With active pin, only ...
Page 45
45 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 inthismenuitem,youdefinetheindicationofthemeasuredvalue onthedisplay.Youcandisplaytwodifferentmeasuredvalues.Inthis menuitem,youdefinemeasuredvalue1. The default setting for the displayed value...
Page 46
46 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 the respective min. And max. Measured value is saved in the sen- sor. The two values are displayed in the menu item "peak values, distance". If you have selected interface measurement under the...
Page 47
47 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in another window you can carry out a reset of the two peak values separately. Information: ifoneofthedisplayvaluesflashes,thereisactuallynovalidvalue available. The menu item "echocurve" shows...
Page 48
48 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 with the menu item "setup" the echo curve it is possible to save at the time of setup. This is generally recommended; for using the asset management functions it is necessary. If possible, the ...
Page 49
49 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 delivery status: restores the parameter settings at the time of ship- mentfromthefactory,incl.Order-specificsettings.Anystoredfalse signal suppression or user-programmed linearisation curve, as...
Page 50
50 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 menu menu item default value setup scaling variable - level volume in l scaling unit - level litres scaling format - level without decimal positions scaling level - 100 % corresponds to 100 sca...
Page 51
51 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 the instrument settings are copied with this function. The following functions are available: • read from sensor: read data from sensor and save in the display and adjustment module • write to ...
Page 52
52 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in menu item "scaling format"youdefinethescalingformatonthe display and the scaling of the measured level value for 0 % and 100 %. Since scaling is very extensive, scaling of the interface valu...
Page 53
53 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in menu item "currentoutput,adjustment" you can assign a respec- tive measured value to the current output. Inthismenuitemyoucanselectthetypeandsizeofyourprobefrom a list of all possible probes...
Page 54
54 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 55: 7 Setup With Pactware
55 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 7 setup with pactware 7.1 connect the pc 3 1 2 fig.30:connectionofthepcdirectlytothesensorviatheinterfaceadapter 1 usbcabletothepc 2 interfaceadaptervegaconnect 3 sensor 4 1 2 3 fig.31:connectingthepcviaharttothesignalc...
Page 56
56 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 alsousuallyequippedwithasufficientcurrentlimitingresistance.In such cases, the interface converter can be connected parallel to the 4 … 20 ma cable (dashed line in the previous illustration). 7.2 parameter adjustment wi...
Page 57
57 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 in the full version there is also an extended print function for complete project documentation as well as a save function for measured value and echo curves. In addition, there is a tank calculation program as well as ...
Page 58
58 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 (device type manager). This enables additional and special settings overandabovethoseofferedbyquicksetup. Maintenance under the menu item "maintenance" you get comprehensive and important support for servicing and maint...
Page 59
59 8 set up with other systems vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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. Thefilescanbedownloadeda...
Page 60
60 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 available for diagnostic pu...
Page 61
61 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 • display and adjustment module further echo curves: up to 10 echo curves can be stored in a ring bufferinthismemorysection.Additionalechocurvesarestoredvia: • pc with pactware/dtm • control system with edd • disp...
Page 62
62 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 this status message is inactive by default. It can be activated by the user via pactware/dtm or edd. The following table shows the error codes in the status message "failure"andgivesinformationonthereasonandrectif...
Page 63
63 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 code text mes- sage reason rectification devspec state in cmd 48 f264 installation/ setup error • error during setup • check for correct mounting and/or parameter settings • check probe length bit 10 of byte 0 … 5...
Page 64
64 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 code text mes- sage reason rectification devspec state in cmd 48 s603 impermissible operating volt- age • operating voltage below specifiedrange • check electrical connection • if necessary, increase oper- ating v...
Page 65
65 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 further comprehensive diagnostics options are available with a pc with pactware and the suitable dtm. In many cases, the reasons can bedeterminedinthiswayandfaultsrectified. Connect a multimeter in the suitable me...
Page 66
66 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 measurement error with constant level fault description error pattern reason rectification 1. Measured value shows a too low or too high level level time 0 • min./max. Adjustment not correct • adapt min./max. Adju...
Page 67
67 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 measurement error during emptying fault description error pattern reason rectification 7. Measured value re- mains unchanged in the close range during emptying level time 0 • false signal larger than the level ech...
Page 68
68 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 ifyousavedtheparametersettingsduringthefirstsetupofthesen- sor, you can transfer them to the replacement electronics module. A fresh setup is then not necessary. 9.6 exchanging the cable/rod if necessary, the cabl...
Page 69
69 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 fig.44:exchangecableorrod information: pleasemaintainthespecifiedtorquesothatthemax.Tensilestrength of the connection remains. 7. Enter new probe length and if necessary the new probe type and then carry out a fre...
Page 70
70 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 8. Enter new probe length and then carry out a fresh adjustment (see "setupprocedure,carryingoutmin.Adjustment-carrying out max. Adjustment"). 1 1 1 2 2 3 a b c 45 mm (1.77") 100 mm (3.94") 25 mm (0.98") 50 mm (1....
Page 71
71 9 diagnostics and servicing vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 if a repair is necessary, please proceed as follows: • printandfilloutoneformperinstrument • clean the instrument and pack it damage-proof • attach the completed form and, if need be, also a safety data sheet outs...
Page 72: 10 Dismount
72 10 dismount vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 chapters...
Page 73: 11 Supplement
73 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 11 supplement 11.1 technical data general data 316l corresponds to 1.4404 or 1.4435 materials, wetted parts Ʋ processfitting(versionupto6bar) 316l and pps gf 40 Ʋ processfitting(versionupto40bar) 304l and peek, 316l and peek, a...
Page 74
74 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 into...
Page 75
75 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 max. Tensile load Ʋ cable: ø 2 mm (0.079 in) - 316 (1.4401) 1.5 kn (337 lbf) Ʋ cable: ø 2 mm (0.079 in) - alloy c276 (2.4819) 1.0 kn (225 lbf) Ʋ cable: ø 4 mm (0.157 in) 2.5 kn (562 lbf) thread in gravity weight, e.G. For eye-b...
Page 76
76 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 indication value - display and adjustment module 2) Ʋ displayed value 1 filling height level Ʋ displayed value 2 electronics temperature resolution, digital output variable - additional current output for details on the operati...
Page 77
77 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 2 4 5 3 2 4 5 3 1 1 fig.46: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 low...
Page 78
78 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 l 0 -2mm (-0.079 ") 2mm (0.079 ") 15mm (0.591 " ) -10mm (-0.394 ") 0,3 m (11.811 " ) 0,08 m (3.15 " ) 0,02 m (0.787 ") 1 fig.47:deviationvegaflex81inrodversioninwater 1 dead band (no measurement possible in this area) l probe l...
Page 79
79 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 0 2mm (0.079 ") -2mm (-0.079 ") 15mm (0.591 ") 10mm (0.394 ") 0,08 m (3.15 ") 0,3 m (11.811 ") 0,1 m (3.94 ") l 1 fig.49:deviationvegaflex81incableversioninwater 1 dead band (no measurement possible in this area) when using a c...
Page 80
80 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 0 -15mm (-0.591 " ) 2mm (0.079 ") -2mm (-0.079 ") 15mm (0.591 " ) 0,3 m (11.811 ") 0,15 m (5.906 " ) 0,15 m (5.906 ") 20mm (0.787 " ) 0,05 m (1.969 ") 1 1 l fig.51:deviationvegaflex81incableversion(ø4mm/0.157in),inmediumoil 1 d...
Page 81
81 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 l 2 mm (0.079 ") 0 -2mm (-0.079 ") 15mm (0.591 " ) -15mm (-0.591 " ) 0,35 m (13.78 ") 0,2 m (7.874 " ) 0,2 m (7.874 ") 0,05 m (1.969 ") 1 1 fig.53:deviationvegaflex81incableversion(ø4mm/0.157in,pfa-coated),inoil 1 dead band (no...
Page 82
82 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 gas phase temperature pressure 1 bar (14.5 psig) 10 bar (145 psig) 50 bar (725 psig) air 20 °c (68 °f) 0 % 0.22 % 1.2 % 200 °c (392 °f) -0.01 % 0.13 % 0.74 % 400 °c (752 °f) -0.02 % 0.08 % 0.52 % hydrogen 20 °c (68 °f) -0.01 % ...
Page 83
83 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 Ʋ silicone fep coated (a+p fep-o- seal) -40 … +150 °c (-40 … +302 °f) Ʋ ffkm(kalrez6375) -20 … +150 °c (-4 … +302 °f) Ʋ ffkm(kalrez6375)-withtempera- ture adapter -20 … +200 °c (-4 … +392 °f) 1 2 3 4 a b 0°c / 32°f -40°c / -40°...
Page 84
84 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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. 55: ambient temperature - process temperature, versio...
Page 85
85 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 protection rating Ʋ unassembled ip 20 Ʋ mounted in the housing without lid ip 40 ambient temperature - display and adjustment module -20 … +70 °c (-4 … +158 °f) materials Ʋ housing abs Ʋ inspection window polyester foil integra...
Page 86
86 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 permissible residual ripple - ex-d-ia instrument Ʋ for 18 v b ≤1v eff (16…400hz) load resistor Ʋ calculation (u b - u min )/0.022 a Ʋ example - non-ex instrument with u b = 24 v dc (24v-9.6v)/0.022a=655Ω potential connections a...
Page 87
87 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 plastic housing ~ 69 mm (2.72") ø 79 mm (3.11") 112 mm (4.41") m20x1,5/ ½ npt ~ 84 mm (3.31") m16x1,5 112 mm (4.41") m20x1,5/ ½ npt 1 2 ø 79 mm (3.11") fig.56:housingversionswithprotectionratingip66/ip67-withintegrateddisplayan...
Page 88
88 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 aluminium housing with protection rating ip 66/ip 68 (1 bar) 120 mm (4.72") ~ 105 mm (4.13") 116 mm (4.57") ~ 150 mm (5.91") ø 86 mm (3.39") ø 86 mm (3.39") m20x1,5/ ½ npt m16x1,5 2 m20x1,5 m20x1,5 1 fig.58:housingversionwithpr...
Page 89
89 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 stainless steel housing with protection rating ip 66/ip 68, 1 bar 117 mm (4.61") ~ 103 mm (4.06") ø 79 mm (3.11") 120 mm (4.72") ~ 105 mm (4.13") ø 86 mm (3.39") m20x1,5 m20x1,5/ ½ npt m16x1,5 ~ 93 mm (3.66") ø 80 mm (3.15") 11...
Page 90
90 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 vegaflex 81, cable version with gravity weight 1 2 3 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 22 mm (0.87") 46 mm (1.81") 100 mm (3.94") 50 mm (1.97") ø...
Page 91
91 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 vegaflex 81, cable version with centering weight 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 22 mm (0.87") 46 mm (1.81") ø 4 mm (0.16") 30 mm (1.18") x ø 4...
Page 92
92 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 vegaflex 81, rod version 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 22 mm (0.87") 46 mm (1.81") ø 8 mm (0.32") l 30mm (1.18") ø 12¨mm (0.47") sw 55 (2.17"...
Page 93
93 11 supplement vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 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 in...
Page 94: Index
94 index vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 index a adjustment – max. Adjustment 39, 40 – min. Adjustment 39, 40 adjustment system 35 application 38, 39 application area 8 b backlight 45 c check output signal 65 copy sensor settings 51 current output 52 current output 2 44 curre...
Page 95
95 index vegaflex 81 • 4 … 20 ma/hart - two-wire 41824-en-170220 s scaling measured value 51, 52 sensor characteristics 54 sensor status 45 service hotline 67 simulation 47 special parameters 53 t type label 7 type of medium 38 u units 37.
Page 96
Printing date: vega grieshaber kg am hohenstein 113 77761 schiltach germany 41824-en-170220 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...