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9 Diagnostics and service

VEGAFLEX 83 • Profibus PA

44223-EN-140430

Code
Text mes-

sage

Cause

Rectification

M505
No echo avail-

able

– Level echo can no longer

be detected

– Clean the antenna

– Use a more suitable

antenna/sensor

– Remove possible false

echoes

– Optimize sensor position

and orientation

9.4 Rectify faults

The operator of the system is responsible for taking suitable meas-

ures to rectify faults.

The first measures are:

•

Evaluation of fault messages, for example via the display and

adjustment module

•

Checking the output signal

•

Treatment of measurement errors

Further comprehensive diagnostics options are available with a PC

with PACTware and the suitable DTM. In many cases, the reasons can

be determined in this way and faults rectified.

The below tables show typical examples for application-relevant

measurement errors. There are two measurement errors:

•

Constant level

•

Filling

•

Emptying

The images in column "

Error pattern

" show the real level with a bro-

ken line and the level displayed by the sensor as a continuous line.

Level

time

Fig. 29: The broken line 1 shows the real level, the continuous line 2 shows the

level displayed by the sensor

Note:

•

Wherever the sensor displays a constant value, the reason could

also be the fault setting of the current output to "

Hold value

•

In case of a too low level indication, the reason could be a line

resistance that is too high

Reaction when malfunc-

tions occur

Procedure for fault recti-

fication

Treatment of measure-

ment errors

Содержание vegaflex 83

Страница 1: ...Operating Instructions TDR sensor for continuous level and interface measurement of liquids VEGAFLEX 83 Profibus PA Polished rod probe Document ID 44223...

Страница 2: ...the connection 20 5 2 Connecting 20 5 3 Wiring plan single chamber housing 22 5 4 Wiring plan double chamber housing 22 5 5 Double chamber housing with DIS ADAPT 24 5 6 Wiring plan version IP 66 IP 68...

Страница 3: ...repair is needed 71 10 Dismounting 10 1 Dismounting steps 72 10 2 Disposal 72 11 Supplement 11 1 Technical data 73 11 2 Communication Profibus PA 80 11 3 Dimensions 85 Safety instructions for Ex area...

Страница 4: ...nnel and put into practice by them 1 3 Symbols used Information tip note This symbol indicates helpful additional information Caution If this warning is ignored faults or malfunctions can result Warni...

Страница 5: ...ing with all prevailing regulations and guidelines The instrument must only be operated in a technically flawless and reliable condition The operator is responsible for the trouble free operation of t...

Страница 6: ...s the standard in field instrumentation The device fulfills the requirements of the following NAMUR recom mendations NE 21 Electromagnetic compatibility of equipment NE 43 Signal level for malfunction...

Страница 7: ...class 13 ID numbers instrument documentation 14 Reminder to observe the instrument documentation 15 Notified authority for CE marking 16 Approval directives The type label contains the serial number...

Страница 8: ...GSM GPRS radio module optional Supplementary instructions manual Heating for display and adjustment module optional Supplementary instructions manual Plug connector for con tinuously measuring sensor...

Страница 9: ...er be detected probe end tracking is automatically activated The measurement is contin ued with the last calculated dielectric constant The accuracy thus depends on the stability of the dielectric con...

Страница 10: ...ist of dielectric constants on our home page www vega com The composition of the upper medium must be stable no varying products or mixtures The upper medium must be homogeneous no stratifications wit...

Страница 11: ...installation the packages must be left closed and stored according to the orientation and storage markings on the outside Unless otherwise indicated the packages must be stored only under the followi...

Страница 12: ...D 37700 The protective cover protects the sensor housing against soiling and intense heat from solar radiation You will find additional information in the supplementary instructions manual Protective...

Страница 13: ...A 44223 EN 140430 If you mount the VEGAFLEX 83 in a bypass tube or standpipe you have to avoid contact to the bypass tube by using a spacer at the probe end You can find additional information in the...

Страница 14: ...tective caps with ap proved cable glands or close the openings with suitable blind plugs The suitable cable glands and blind plugs come with the instrument Make sure that all parts of the instrument e...

Страница 15: ...conical bottom Plastic vessel Glass vessel The guided microwave principle requires a metallic surface on the process fitting Therefore in plastic vessels etc use an instru ment version with flange fro...

Страница 16: ...sockets or sockets with a bigger diameter can generally be used They can however increase the upper blocking distance dead band Check if this is relevant for your measurement In such cases always car...

Страница 17: ...the filling stream Make sure that you detect the product surface not the inflowing product Fig 8 Mounting of the sensor with inflowing medium The reference plane for the measuring range of the sensors...

Страница 18: ...sel wall of at least 300 mm 11 81 in You can find further information in the supplementary instructions of the rod extension In case of difficult installation conditions for example in a socket the pr...

Страница 19: ...rofibus PA 44223 EN 140430 112 mm 4 84 DIN DN25 DN32 DN40 1 1 1 2 L 54 mm 2 13 w 183 mm 7 20 65 3 mm 2 57 w 50 5 DIN DN50 2 64 91 DIN DN65 3 2 1 3 Fig 9 Autoclaved version 1 Groove nut 2 Process fitti...

Страница 20: ...nation of the bus is done with appropriate terminating resistors You can find detailed information of the cable specification installa tion and topology in the Profibus PA User and Installation Guide...

Страница 21: ...d as follows 1 Unscrew the housing cover 2 If a display and adjustment module is installed remove it by turn ing it slightly to the left 3 Loosen compression nut of the cable entry gland 4 Remove appr...

Страница 22: ...round terminal to potential equalisation 9 Tighten the compression nut of the cable entry gland The seal ring must completely encircle the cable 10 Reinsert the display and adjustment module if one wa...

Страница 23: ...The connection of an external display and adjustment unit is not pos sible with this double chamber housing Bus 5 1 2 6 7 8 2 3 4 1 Fig 14 Terminal compartment double chamber housing 1 Voltage supply...

Страница 24: ...ons PLICSMOBILE GSM GPRS radio module 5 5 Double chamber housing with DIS ADAPT 3 1 2 Fig 16 View to the electronics compartment with DISADAPT for connection of the external display and adjustment uni...

Страница 25: ...1 USB Status Test SIM Card 1 2 Fig 19 Radio module PLICSMOBILE integrated in the connection compart ment 1 Voltage supply You can find detailed information on connection in the supplementary instruct...

Страница 26: ...n 1 2 Decade of the address selection 0 to 9 3 Unit position of the address selection 0 to 9 The software addressing is only effective if address 126 or higher is adjusted on the instrument with the a...

Страница 27: ...90 It is not necessary to interrupt the power supply Proceed as follows 1 Unscrew the housing cover 2 Place the display and adjustment module in the requested posi tion onto the electronics and turn t...

Страница 28: ...cs compartment 2 In the connection compartment with Ex d ia version not possible Note If you intend to retrofit the instrument with a display and adjustment module for continuous measured value indica...

Страница 29: ...t self test where the device software is checked The output signal transmits a fault signal during the switch on phase The following information is displayed on the display and adjustment module durin...

Страница 30: ...item you can select the application You can choose between level measurement and interface measurement You can also choose between measurement in a vessel or in a bypass or standpipe Medium dielectric...

Страница 31: ...eference plane seal surface of the process fitting Max adjustment Interface Carry out the max adjustment for the interface To do this enter the percentage value and the suitable distance value in m fo...

Страница 32: ...ion are detected by the sensor and stored The instrument carries out an automatic false signal suppression as soon as the probe is uncovered The false signal suppression is always updated AI FB1 Chann...

Страница 33: ...set correctly When the instrument is shipped address 126 is adjusted This ad dress can be used for function test of the instrument and for con nection to a Profibus PA network Then address must be ch...

Страница 34: ...e distance units such as for example m mm and ft In this menu item you can enter the probe length or have the length determined automatically by the sensor system When choosing Yes then the probe leng...

Страница 35: ...under the menu item Application You can choose between the following medium types Dielectric con stant Type of medium Examples 10 Water based liq uids Acids alcalis water 3 10 Chemical mix tures Chlo...

Страница 36: ...tance 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 Keep in mind that the max level must li...

Страница 37: ...lication If you have selected Yes in the previous menu item accept adjustment of the level measure ment the current setting will be displayed If you have selected No you can enter the adjustment for t...

Страница 38: ...as soon as the probe is uncovered The false signal suppression is always updated The menu item Delete is used to completely delete an already cre ated false signal suppression This is useful if the s...

Страница 39: ...cket correction For non linear vessel forms enter the vessel height und the socket correction For the vessel height you have to enter the total height of the vessel For the socket correction you have...

Страница 40: ...ling of the measured level values for 0 and 100 Level measured value min Measured level value max To damp process dependent measured value fluctuations you can set a time of 0 999 s in this menu item...

Страница 41: ...the display options The procedure is described in the following The following submenu points are available The submenu points described below This menu item enables the setting of the requested natio...

Страница 42: ...urement are displayed in addition to the peak values of the level measurement In another window you can carry out a reset of the two peak values separately The respective min and max measured values a...

Страница 43: ...item Echo curve shows the signal strength of the echoes over the measuring range in V The signal strength enables an evalua tion of the quality of the measurement With the following functions you can...

Страница 44: ...he operating time With the adjustment software PACTware and the PC the high resolution echo curve can be displayed and used to compare the echo curve of the setup with the actual echo curve The functi...

Страница 45: ...s the measured value memory will be deleted Basic settings Resetting of the parameter settings incl special parameters to the default values presettings of the respective instru ment Any created false...

Страница 46: ...Interface Distance 0 000 m d note block ing distances Min adjustment Interface 0 Min adjustment Interface Distance Probe length take dead band into account Integration time Level 0 0 s Integration tim...

Страница 47: ...ched off Status signals Maintenance Switched off Device memory Echo curve memory Stopped Device memory Measured value memory Started Device memory Measured value memory Measured values Distance level...

Страница 48: ...AI FB2 Hysteresis 0 50 AI FB2 Fail Safe Mode behaviour in case of mal function Last Valid Out Value last valid measured value AI FB2 Fail Safe Value 0 00 AI FB2 Target Mode Auto AI FB3 Tag Descriptor...

Страница 49: ...tten into one or more sen sors or kept as backup for a possible electronics exchange Note Before the data are stored in the sensor a check is carried out to determine if the data fit the sensor If the...

Страница 50: ...pped with a display and adjustment module the data in the sensor can be saved in the display and adjustment module The procedure is described in the operating instructions manual Display and adjustmen...

Страница 51: ...llec tion The DTMs can also be integrated into other frame applications according to FDT standard Note To ensure that all instrument functions are supported you should always use the latest DTM Collec...

Страница 52: ...on 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 multiviewer for display and analysis of...

Страница 53: ...adjustment you carry out the parameter adjust ment for the instrument via the clear menu structure in the DTM Device Type Manager This enables additional and special settings over and above those offe...

Страница 54: ...ess can be used for function test of the instrument and for con nection to a Profibus PA network Then address must be changed to integrate additional instruments The address setting is carried out eit...

Страница 55: ...a superim posed gas phase Demonstration mode This mode is only suitable for test and demon stration purposes In this mode the sensor ignores all parameters and reacts immediately to all measured valu...

Страница 56: ...ically on the level and the interface measurement You can find further linearization types in the extended adjustment If you have a non linear vessel you can select here the respective linearization c...

Страница 57: ...ed from the device This procedure can last several minutes 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...

Страница 58: ...EN 140430 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 fil...

Страница 59: ...tive measured values The requested values and recording conditions are set via a PC with PACTware DTM or the control system with EDD Data are thus read out and also reset Up to 500 events are automati...

Страница 60: ...tenance requirement and explained by pictographs 4 1 2 3 Fig 28 Pictographs of the status messages 1 Failure red 2 Out of specification yellow 3 Function check orange 4 Maintenance blue Failure Due to...

Страница 61: ...ment according to the limit values difference between min and max 10 mm Bit 1 F025 Error in the lineariza tion table Index markers are not continuously rising for example illogical value pairs Check l...

Страница 62: ...the instrument not sufficient Check or correct installation and or parameter adjustment Use an instrument with bigger measuring range Bit 11 F265 Meas urement function disturbed Sensor no longer carri...

Страница 63: ...nd provides information on causes as well as corrective measures Code Text mes sage Cause Rectification M500 Error with the reset delivery status With the reset to delivery status the data could not b...

Страница 64: ...Tware and the suitable DTM In many cases the reasons can be determined in this way and faults rectified The below tables show typical examples for application relevant measurement errors There are two...

Страница 65: ...attern Cause Rectification 3 Measured value re mains in the area of the bottom during filling Level time 0 Echo from the probe end larger than the product echo for example with products with r 2 5 oil...

Страница 66: ...signal suppression The below tables show typical examples for application relevant measurement errors with bulk solids There are two measurement errors Constant level Filling Emptying The images in co...

Страница 67: ...e echo at a false echo position jumps to multiple echo In case of interferences due to installations in the close range Change polarisation direction Chose a more suitable installa tion position Trans...

Страница 68: ...ium and adapt if neces sary Optimize installation position and sensor orientation Reflections from the product surface via the vessel wall deflection Depending on the reason for the fault and the meas...

Страница 69: ...he sensor you can transfer these to the replacement electronics module A new setup is no more necessary 9 6 Exchanging the rod The rod meas part of the probe can be shortened if necessary To loosen th...

Страница 70: ...djustment Carrying out max adjustment 9 7 Software update The following components are required to update the instrument software Instrument Voltage supply Interface adapter VEGACONNECT PC with PACTwa...

Страница 71: ...s and certificates By doing this you help us carry out the repair quickly and without hav ing to call back for needed information If a repair is necessary please proceed as follows Print and fill out...

Страница 72: ...mpanies We use recyclable materials and have designed the parts to be easily separable Correct disposal avoids negative effects on humans and the environ ment and ensures recycling of useful raw mater...

Страница 73: ...owder coated basis Polyester Stainless steel housing precision casting 316L Stainless steel housing electropol ished 316L Seal between housing and housing cover NBR stainless steel housing precision c...

Страница 74: ...medium r 1 6 2 4 5 3 1 Fig 48 Measuring ranges VEGAFLEX 83 1 Reference plane 2 Probe length L 3 Measuring range default setting refers to the measuring range in water 4 Upper dead band see diagrams un...

Страница 75: ...installation process fitting flush with the vessel ceiling Medium Water Oil dielectric constant 2 0 2 Installation Probe end does not touch the vessel bottom Sensor parameter adjustment No gating out...

Страница 76: ...9 0 2 mm 0 079 15 mm 0 591 15 mm 0 591 10 mm 0 394 0 35 m 13 78 0 15 m 5 906 0 1 m 3 937 0 05 m 1 969 1 1 Fig 50 Deviation VEGAFLEX 83 in rod version in oil 1 Dead band no measurement possible in this...

Страница 77: ...56 F 0 17 2 1 264 C 507 F 0 12 1 44 9 2 366 C 691 F 0 07 1 01 5 7 Characteristics and performance data Measuring cycle time 500 ms Step response time5 3 s Max filling emptying speed 1 m min Ambient co...

Страница 78: ...200 Hz according EN 60068 2 6 vibration at resonance with rod length 50 cm 19 69 in Shock resistance Instrument housing 100 g 6 ms according to EN 60068 2 27 mechanical shock Rod probe 25 g 6 ms acco...

Страница 79: ...rotection rating unassembled IP 20 mounted into the housing without cover IP 40 Materials Housing ABS Inspection window Polyester foil Integrated clock Date format Day Month Year Time format 12 h 24 h...

Страница 80: ...NEMA 6P Double chamber IP 66 IP 67 IP 66 IP 68 0 2 bar IP 68 1 bar NEMA 4X NEMA 6P NEMA 6P Overvoltage category III6 Protection class III7 Approvals Instruments with approvals can have different techn...

Страница 81: ...used the sensor must be set to the profile specific ident number via the DTM software By default the sensor operates with the manufacturer specific ID number When using the instruments on a segment c...

Страница 82: ...the AI FB3 after scaling Free Place This module must be used if a value in the data telegram of the cyclical data traffic should not be used e g replacement of temperature and Additional Cyclic Value...

Страница 83: ...re not used in this example Data format of the output signal Byte4 Byte3 Byte2 Byte1 Byte0 Status Value IEEE 754 Fig 53 Data format of the output signal The status byte corresponds to profile 3 02 Pro...

Страница 84: ...lue Failsafe replacement value Failsafe Mode Last val ue and already valid measured value since switching on 0 x 48 uncertain substitute set Switch on simulation Failsafe replacement value Failsafe Mo...

Страница 85: ...41 M20x1 5 NPT 1 2 79 mm 3 11 Fig 55 Housing versions in protection IP 66 IP 68 0 2 bar with integrated display and adjustment module the housing is 9 mm 0 35 in higher 1 Single chamber version 2 Doub...

Страница 86: ...the housing is 9 mm 0 35 in higher 1 Single chamber version 2 Double chamber version Stainless steel housing 69 mm 2 72 79 mm 3 11 117 mm 4 61 M20x1 5 NPT 59 mm 2 32 80 mm 3 15 112 mm 4 41 M20x1 5 NPT...

Страница 87: ...1 M20x1 5 NPT 3 2 1 Fig 59 Housing versions in protection IP 66 IP 68 1 bar with integrated display and adjustment module the housing is 9 mm 0 35 in higher 1 Single chamber version electropolished 2...

Страница 88: ...mm 0 315 in polished autoclaved version 112 mm 4 84 DIN DN25 DN32 DN40 1 1 1 2 L 54 mm 2 13 w 183 mm 7 20 65 3 mm 2 57 w 50 5 DIN DN50 2 64 91 DIN DN65 3 2 1 3 Fig 61 VEGAFLEX 83 rod version 8 mm 0 3...

Страница 89: ...he Schutzrechte N here Informationen unter www vega com Les lignes de produits VEGA sont globalement prot g es par des droits de propri t intellec tuelle Pour plus d informations on pourra se r f rer...

Страница 90: ...ced Device Description 58 Error codes 62 Event memory 59 F Factory calibration date 50 False signal suppression 37 Fault rectification 64 Functional principle 8 G Gas phase 35 GSD file 81 H Hardware a...

Страница 91: ...or characteristics 50 Sensor status 42 Service hotline 68 Simulation 43 Software addressing 26 33 Special parameters 49 Status bytes PA output value 84 Status messages NAMUR NE 107 60 T Telegram confi...

Страница 92: ...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 Subject to change without prior n...

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