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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 document id: 41824.
Page 2: Quick Start
2 quick start vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 quick start the quick start procedure enables a quick setup with many applica- tions. You can find further information in the respective chapters of the operating instructions manual. 1. Distance from the metallic vessel wall > 300 ...
Page 3
3 quick start vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1. In this menu item you can select the application. You can choose between level and interface measurement. 2. In the menu item "medium - dielectric constant" you can define the medium type (medium). 3. Carry out the adjustment in ...
Page 4
4 quick start vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 point for these distance specifications is always the seal surface of the thread or flange. 1. In the menu "additional settings", menu item "damping" you can adjust the requested damping of the output signal. 2. Select the parameter...
Page 5: Contents
5 contents vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 contents 1 about this document 1.1 function ........................................................................................................................... 7 1.2 target group ...................................................
Page 6
6 contents vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 9.2 diagnosis memory ......................................................................................................... 66 9.3 status messages ........................................................................................
Page 7: 1 About This Document
7 1 about this document vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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- tions for maintenance and fault rectification. Pl...
Page 8: 2 For Your Safety
8 2 for your safety vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 d...
Page 9
9 2 for your safety vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 electromagnetic compatibility instruments with plastic housing as well as in four-wire or ex-d-ia version are designed for use in an industrial environment. Neverthe- less, electromagnetic interference from electrical conducto...
Page 10: 3 Product Description
10 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 3 product description 3.1 configuration the nameplate contains the most important data for identification and use of the instrument: 2 1 13 14 15 16 12 11 5 3 6 4 7 8 9 10 fig. 4: layout of the type label (example) 1 inst...
Page 11
11 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 this operating instructions manual applies to the following instrument versions: • hardware from 1.0.0 • software from 1.0.0 • only for instrument versions without sil qualification the instrument and the electronics vers...
Page 12
12 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 d h 1 fig. 5: level measurement 1 sensor reference plane (seal surface of the process fitting) d distance to the interface (hart value 1) h height - level probe end tracking to increase sensitivity, the probe is equipped ...
Page 13
13 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 ts d1 h1 h2 d2 1 l2 l1 l3 fig. 6: interface measurement 1 sensor reference plane (seal surface of the process fitting) d1 distance to the interface (hart value 1) d2 distance to the level (hart value 3) ts thickness of th...
Page 14
14 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 was ...
Page 15
15 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 you can find further information in the operating instructions "interface adapter vegaconnect" (document-id 32628). The vegadis 81 is an external display and adjustment unit for vega plics ® sensors. For sensors with doub...
Page 16
16 3 product description vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 if you are using an instrument with rod version, you can extend the rod probe individually with curved segments and rod extensions of different lengths. All extensions used must not exceed a total length of 6 m (19.7 ft)....
Page 17: 4 Mounting
17 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 4 mounting 4.1 general instructions on instruments with process fitting thread, the hexagon must be tight- ened with a suitable screwdriver. Wrench size see chapter "dimen- sions". Warning: the housing must not be used to screw the ...
Page 18
18 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 vessels, the distance to the vessel wall should be at least 500 mm (19.7 in). During operation, the probe must not touch any installations or the vessel wall. If necessary, fasten the probe end. In vessels with conical bottom it can...
Page 19
19 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 fig. 8: installation in non-metallic vessel 1 flange 2 metal sheet if possible, avoid sockets. Mount the sensor flush with the vessel top. If this is not possible, use short sockets with small diameter. Higher sockets or sockets...
Page 20
20 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 fig. 10: socket must be installed flush 1 unfavourable installation 2 socket flush - optimum installation before beginning the welding work, remove the electronics module from the sensor. By doing this, you avoid damage to the e...
Page 21
21 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 products. These blocking distances for different mediums are listed in chapter "technical data". Keep in mind for the adjustment that the default setting for the measuring range refers to water. The process fitting must be sealed if...
Page 22
22 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 3 fig. 12: position of the spacer or centering weight 1 rod probe with spacer (peek) 2 cable probe with centering weight 3 spacer (peek) on the gravity weight of a cable probe note: measurement in a standpipe is not recommended ...
Page 23
23 4 mounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 1 2 fig. 13: fasten the probe 1 probe 2 retaining sleeve in case of difficult installation conditions, the probe can be also mounted laterally. For this purpose, adapt the rod with rod extensions or bow-shaped segments. Let the ...
Page 24
24 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 5 connecting to power supply 5.1 preparing the connection always keep in mind the following safety instructions: • connect only in the complete absence of line voltage • if overvoltage surges are expected, overvolt...
Page 25
25 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 if screened cable is necessary, connect the cable screen on both ends to ground potential. In the sensor, the screen must be connected directly to the internal ground terminal. The ground terminal on the outside of...
Page 26
26 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 fig. 14: connection steps 5 and 6 - single chamber housing fig. 15: connection steps 5 and 6 - double chamber housing 6. Insert the wire ends into the terminals according to the wiring plan information: solid cores...
Page 27
27 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 9. Tighten the compression nut of the cable entry. The seal ring must completely encircle the cable 10. Reinsert the display and adjustment module, if one was installed 11. Screw the housing cover back on the elect...
Page 28
28 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 5 1 2 + ( ) (-) 6 7 8 4...20ma 2 3 4 1 fig. 18: connection compartment, double chamber housing 1 voltage supply, signal output 2 for display and adjustment module or interface adapter 3 for external display and adj...
Page 29
29 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 5.5 wiring plan, ex-d-ia double chamber housing 5 6 7 8 1 2 + ( ) (-) 3 1 2 4...20ma fig. 20: electronics compartment, double chamber housing 1 internal connection to the connection compartment 2 for display and ad...
Page 30
30 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 3 1 2 fig. 22: view to the electronics compartment 1 dis-adapt 2 internal plug connection 3 plug connector m12 x 1 3 4 1 2 fig. 23: top view of the plug connector 1 pin 1 2 pin 2 3 pin 3 4 pin 4 contact pin colour ...
Page 31
31 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 5.7 supplementary electronics you can use the supplementary electronics - second current output to provided a second measured value. Both current outputs are passive and need a power supply. 1 2 + ( ) (-) i 4...20m...
Page 32
32 5 connecting to power supply vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 as soon as a plausible measured value is found, the corresponding current is outputted to the signal cable. The value corresponds to the actual level as well as the settings already carried out, e.G. Factory settin...
Page 33: Module
33 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 and removed any time. Four positions dis...
Page 34
34 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 fig. 28: insertion of the display and adjustment module into the double chamber housing 1 in the electronics compartment 2 in the connection compartment (with ex-d-ia version not possible) no...
Page 35
35 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 – confirm selected menu – edit parameter – save value • [->] key: – presentation, change measured value – select list entry – select editing position • [+] key: – change value of the parameter • ...
Page 36
36 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 you can find "extended adjustment" in the next sub-chapter. Measurement loop name in the first menu item you can assign a suitable measurement loop name. You can enter a name with max. 19 charact...
Page 37
37 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 reference plane (seal surface of the process fitting). Keep in mind that the max. Level must lie below the dead band. Min. Adjustment in this menu item, you can enter the min. Adjustment for the ...
Page 38
38 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 the instrument carries out an automatic false signal suppression as soon as the probe is uncovered. The false signal suppression is always updated. 6.4 parameter adjustment - extended adjustment ...
Page 39
39 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 • special characters + - / _ blanks in this menu item you select the distance unit and the temperature unit. With the distance units you can choose between m, mm and ft and with the temperature u...
Page 40
40 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 in this menu item, you can define the medium type (product). This menu item is only available if you have selected level measure- ment under the menu item "application". You can choose between th...
Page 41
41 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 enter the appropriate distance value in m (corresponding to the percentage value) for the full vessel. The distance refers to the sensor reference plane (seal surface of the process fitting). Kee...
Page 42
42 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 for the full vessel, enter the distance value in m matching the per- centage value. This menu item is only available if you have selected interface meas- urement under the menu item "application"...
Page 43
43 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 warning: if a linearization curve is selected, the measuring signal is no longer necessarily linear to the filling height. This must be considered by the user especially when adjusting the switch...
Page 44
44 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 since scaling is very extensive, scaling of the level value was divided into two menu items. In menu item "level 1" you define the scaling variable and the scaling unit for the level value on the...
Page 45
45 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 in menu item "interface (2)" you define the scaling format on the display and the scaling of the interface measured value for 0 % and 100 %. In menu item"current output, size" you determine which...
Page 46
46 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 in the menu item "current output min./max.", you determine the reac- tion of the current output during operation. The default setting is min. Current 3.8 ma and max. Current 20.5 ma. If a supplem...
Page 47
47 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 the following circumstances cause interfering reflections and can influence the measurement: • high sockets • vessel installations such as struts note: a false signal suppression detects, marks a...
Page 48
48 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 • select menu items and show data • read data from the sensor into the display and adjustment mod- ule. Caution: with active pin, adjustment via pactware/dtm as well as other systems is also bloc...
Page 49
49 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 the default setting for the displayed value 2 is the electronics tem- perature. The optionally integrated background lighting can be adjusted via the adjustment menu. The function depends on the ...
Page 50
50 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 in another window you can carry out a reset of the two peak values separately. The respective min. And max. Measured values are saved in the sensor. The values are displayed in the menu item "pea...
Page 51
51 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 select the requested simulation size and adjust the requested value. Caution: during simulation, the simulated value is outputted as 4 … 20 ma cur- rent value and digital hart signal. Push the [e...
Page 52
52 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 available if adjustment is enabled in the menu "lock/release setup/ adjustment". In delivery status, the pin is "0000". In this menu item, the internal clock of the sensor is adjusted. With a res...
Page 53
53 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 menu item default value modified value medium, dielectric constant water-based, > 10 superimposed gas phase yes dielectric figure, upper medium (ts) 1.5 tube inner diameter 200 mm max. Adjustment...
Page 54
54 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 menu item default value modified value current output - max. 20.5 ma current output 2 - output variable second hart variable (sv) distance - level current output 2 - output characteristics 0 … 10...
Page 55
55 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 additional adjustments menu item default value modified value pin 0000 date actual date time actual time time - format 24 hours probe type device-specific the instrument settings are copied with ...
Page 56
56 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 change the settings of the special parameters only after having con- tacted our service staff. The sensor offers the hart modes "analogue current output" and "fix current (4 ma)". In this menu it...
Page 57
57 6 set up with the display and adjustment module vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 in this menu item, the features of the sensor such as approval, pro- cess fitting, seal, measuring range, electronics, housing and others are displayed. 6.5 saving the parameter adjustment data w...
Page 58: 7 Setup With Pactware
58 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 7 setup with pactware 7.1 connect the pc 3 1 2 fig. 31: connection of the pc directly to the sensor via the interface adapter 1 usb cable to the pc 2 interface adapter vegaconnect 3 sensor 1 5 2 4 3 open twist usb lock fi...
Page 59
59 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 with pactware for parameter adjustment of the sensor via a windows ...
Page 60
60 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 a ...
Page 61
61 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 (device type manager). This enables additional and special settings over and above those offered by quick setup. Maintenance under the menu item "maintenance" you get comprehensive and important support for servicing and ...
Page 62
62 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 application in this field you can select the application you want to use your instru- ment for. You have the following selection options: • level in the vessel • level in the bypass/standpipe • interface in the vessel • i...
Page 63
63 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 level and interface or accept the values of the level measurement. The entered value refers to the distance from the sealing surface of the process fitting (sensor reference plane) to the total level or interface. Lineari...
Page 64
64 7 setup with pactware vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 create instrument documentation? This function is used to print or create a pdf file of the current param- eter adjustment. To read the pdf file, you need a suitable program (for example acrobat reader). To print or creat...
Page 65
65 8 set up with other systems vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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. The files can be downloade...
Page 66: 9 Diagnostics and Service
66 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 9 diagnostics and service 9.1 maintenance if the device is used correctly, no maintenance is required in normal operation. 9.2 diagnosis memory the instrument has several memories which are available for diagno- sis p...
Page 67
67 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 • display and adjustment module further echo curves: up to 10 echo curves can be stored in a ring buffer in this memory section. Further echo curves are stored via: • pc with pactware/dtm • control system with edd • d...
Page 68
68 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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/dtm ...
Page 69
69 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 code text mes- sage cause rectification f260 error in the calibration – error in the calibration car- ried out in the factory – error in the eeprom – exchanging the electronics – send instrument for repair f261 error ...
Page 70
70 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 code text mes- sage cause rectification s601 overfilling – level echo in the close range not available – reduce level – 100 % adjustment: increase value – check mounting socket – remove possible interfering signals in...
Page 71
71 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 code text mes- sage cause rectification m505 no measured value avail- able – sensor does not detect an echo during operation – check and correct instal- lation and/or parameter adjustment – process component or probe ...
Page 72
72 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 error cause rectification 4 … 20 ma signal missing – electrical con- nection faulty – check connection according to chapter "connection steps" and if necessary, correct according to chapter "wiring plan" – voltage sup...
Page 73
73 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 measurement error with constant level fault description error pattern cause rectification 1. Measured value shows a too low or too high level level time 0 – min./max. Adjustment not correct – adapt min./max. Adjustmen...
Page 74
74 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 measurement error during emptying fault description error pattern cause rectification 7. Measured value re- mains unchanged in the close range during emptying level time 0 – false echo larger than the level echo – lev...
Page 75
75 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 9.6 exchanging the cable/rod if necessary, the cable or rod (measuring part) of the probe can be exchanged. Loosen the rod or cable with a fork wrench, wrench size 7 (rod ø 8, cable ø 2 and 4) or wrench size 10 (rod ø...
Page 76
76 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 the rod or cable of the probe can be shortened individually. 1. Mark the requested length with mounted measuring rod. 2. Cable: loosen the pins on the gravity weight (hexagon 3) 3. Cable: remove the pins 4. Cable: pul...
Page 77
77 9 diagnostics and service vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 you can find the actual sensor software as well as detailed infor- mation of the procedure under "www.Vega.Com/downloads" and "software". You can find information about the installation in the download file. Caution: ...
Page 78: 10 Dismounting
78 10 dismounting vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 10 dismounting 10.1 dismounting steps warning: before dismounting, be aware of dangerous process conditions such as e.G. Pressure in the vessel, high temperatures, corrosive or toxic products etc. Take note of chapters "mounting...
Page 79: 11 Supplement
79 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 11 supplement 11.1 technical data general data 316l corresponds to 1.4404 or 1.4435 materials, wetted parts Ʋ process fitting (version up to 6 bar) 316l and pps gf 40 Ʋ process fitting (version up to 40 bar) 316l and aluminium ox...
Page 80
80 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 weight Ʋ instrument weight (depending on process fitting) approx. 0.8 … 8 kg (0.176 … 17.64 lbs) Ʋ rod: ø 8 mm (0.315 in) approx. 400 g/m (4.3 oz/ft) Ʋ rod: ø 12 mm (0.472 in) approx. 900 g/m (9.68 oz/ft) Ʋ cable: ø 2 mm (0.079 i...
Page 81
81 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 Ʋ cable probes ε r ≥ 1.6 Ʋ rod probes ε r ≥ 1.6 2 4 5 3 2 4 5 3 1 1 fig. 47: measuring ranges - vegaflex 81 1 reference plane 2 probe length l 3 measuring range (default setting refers to the measuring range in water) 4 upper dea...
Page 82
82 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 max. Output current 21.5 ma starting current ≤ 10 ma for 5 ms after switching on, ≤ 3.6 ma load see load under power supply damping (63 % of the input variable), adjustable 0 … 999 s hart output values according to hart 7 (defaul...
Page 83
83 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 Ʋ min. Distance to installations > 500 mm (19.69 in) Ʋ vessel metallic, ø 1 m (3.281 ft), centric installation, process fitting flush with the vessel ceiling Ʋ medium water/oil (dielectric constant ~2.0) 4) Ʋ installation probe e...
Page 84
84 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 l 2mm (0.079 ") 0 -2mm (-0.079 ") 15mm (0.591 " ) -10mm (-0.591 ") 0,3 m (11.811 ") 0,15 m (5.906 " ) 0,05 m (1.97 ") 0,07 m (2.756 ") 1 1 fig. 49: deviation vegaflex 81 in rod version in oil 1 dead band - no measurement possible...
Page 85
85 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 l 0 -15mm (-0.591 " ) 2mm (0.079 ") -2mm (-0.079 ") 15mm (0.591 " ) 0,3 m (11.811 ") 0,15 m (5.906 " ) 0,08 m (3.15 ") 0,05 m (1.969 ") 1 1 fig. 51: deviation vegaflex 81 in cable version ø 2 mm (0.079 in), in oil 1 dead band - n...
Page 86
86 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 additional deviation through electromag- netic interference acc. To en 61326 specifications apply also to the current output 7) temperature drift - current output ±0.03 %/10 k relating to the 16 ma span max. ±0.3 % deviation on t...
Page 87
87 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 the measurement error from the process conditions is in the specified pressure and temperature range of below 1 %. Process pressure Ʋ process fitting with pps gf 40 -1 … 6 bar/-100 … 600 kpa (-14.5 … 87 psi), depending on the pro...
Page 88
88 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 2 0°c (32°f) -40°c (-104°f) 55°c (131°f) 80°c (176°f) 200°c (392°f) 150°c (302°f) 3 4 -20°c (-68°f) fig. 54: ambient temperature - process temperature, version with temperature adapter 1 ambient temperature 2 process temperatur...
Page 89
89 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 electromechanical data - version ip 66/ip 68 (1 bar) options of the cable entry Ʋ cable gland m20 x 1.5 Ʋ cable diameter (options) 5 … 9 mm (0.20 … 0.35 in) 6 … 12 mm (0.24 … 0.47 in) 10 … 14 mm (0.39 … 0.55 in) Ʋ cable entry ½ n...
Page 90
90 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 voltage supply operating voltage Ʋ non-ex instrument, ex-d instrument 9.6 … 35 v dc Ʋ ex-ia instrument 9.6 … 30 v dc Ʋ ex-d-ia instrument 15 … 35 v dc operating voltage with illuminated display and adjustment module Ʋ non-ex inst...
Page 91
91 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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. 55: housing versions in protection ip 66/ip 68 (0.2 bar) - with integrat...
Page 92
92 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 aluminium housing in 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 84 mm (3.31") ø 84 mm (3.31") m20x1,5/ ½ npt m16x1,5 2 m20x1,5 m20x1,5 1 fig. 57: housing versions in pr...
Page 93
93 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 stainless steel housing in 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 3 m20x1,5/ ½ npt m16x1,5 2 1 ~ 93 mm (3.66") ø 80 mm (3.15") ...
Page 94
94 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 95
95 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 1 cable version ø 2 mm (0.079 in) with gravity weight 2 cable version ø 4 mm (0.157 in) with gravity weight 3 cable version with temperature adapter vegaflex 81, cable version with centering weight l sw 36 (1.42") (g¾, ¾ npt) sw ...
Page 96
96 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 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 97
97 11 supplement vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 11.3 industrial property rights vega product lines are global protected by industrial property rights. Further information see www.Vega.Com. Only in u.S.A.: further information see patent label at the sensor housing. Vega produkt...
Page 98: Index
98 index vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 index a accessories – display and adjustment module 14 – external display and adjustment unit 15 – external radio unit 15 – flanges 15 – interface adapter 14 – protective cap 15 adjustment – max. Adjustment 40, 41 – min. Adjustment 41, 4...
Page 99
99 index vegaflex 81 • 4 … 20 ma/hart two-wire 41824-en-130612 probe length 39 probe type 55 q quick setup 36 r read out info 56 repair 77 replacement parts – bypass 16 – display and adjustment module with heating 15 – electronics module 15 – rod extension 16 – spacer 16 reset 52 s scaling measured ...
Page 100
Printing date: vega grieshaber kg am hohenstein 113 77761 schiltach germany 41824-en-130612 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...