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Vega VEGAFLEX 86 Operating Instructions Manual

Tdr sensor for continuous level and interface measurement of liquids
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Operating Instructions

TDR sensor for continuous level and
interface measurement of liquids
VEGAFLEX 86
4 ... 20 mA/HART - two-wire
Rod and cable probe
-20 ... +250 °C
Document ID: 49477

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Summary of Contents for Vega VEGAFLEX 86

  • Page 1: Operating Instructions

    Operating Instructions TDR sensor for continuous level and interface measurement of liquids VEGAFLEX 86 4 … 20 mA/HART - two-wire Rod and cable probe -20 … +250 °C Document ID: 49477...
  • Page 2 Set up with the quick setup ..................... 61 Saving the parameter adjustment data ................65 Set up with other systems DD adjustment programs ....................66 Field Communicator 375, 475 ..................66 Diagnostics and servicing VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 3 11.2 Dimensions ........................90 Safety instructions for Ex areas Take note of the Ex specific safety instructions for Ex applications. These instructions are attached as documents to each instrument with Ex approval and are part of the operating instructions manual. Editing status: 2014-12-15 VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 4: Symbols Used

    This arrow indicates a single action. Sequence of actions Numbers set in front indicate successive steps in a procedure. Battery disposal This symbol indicates special information about the disposal of bat- teries and accumulators. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 5: For Your Safety

    During work on and with the device the required personal protective equipment must always be worn. Appropriate use VEGAFLEX 86 is a sensor for continuous level measurement. You can find detailed information about the area of application in chapter "Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.

  • Page 6: Namur Recommendations

    That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfill this obligation by observing the environmental instructions in this manual: • Chapter "Packaging, transport and storage" • Chapter "Disposal" VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 7: Product Description

    Go to www.vega.com, "VEGA Tools" and "Instrument search". Enter the serial number. Alternatively, you can access the data via your smartphone: • Download the smartphone app "VEGA Tools" from the "Apple App Store" or the "Google Play Store" VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 8: Principle Of Operation

    – Ex-specific "Safety instructions" (with Ex versions) – if necessary, further certificates Principle of operation The VEGAFLEX 86 is a level sensor with cable or rod probe for con- Application area tinuous level or interface measurement, especially for applications in high temperatures up to +250° C (482° F).
  • Page 9 High frequency microwave impulses are guided along a steel cable or terface measurement rod. Upon reaching the product surface, a part of the microwave im- pulses is reflected. The other part passes through the upper product and is reflected by the interface. The running times to the two product layers are processed by the instrument. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 10 Example: upper medium dielectric constant 2, lower medium at least dielectric constant 12. Gas phase (L3) • Air or gas mixture • Gas phase - dependent on the application, gas pahse does not always exist (d2 = 0) VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 11: Packaging, Transport And Storage

    The interface adapter VEGACONNECT enables the connection of communication-capable instruments to the USB interface of a PC. For parameter adjustment of these instruments, the adjustment software PACTware with VEGA-DTM is required. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 12 3 Product description You can find further information in the operating instructions "Interface adapter VEGACONNECT" (Document-ID 32628). VEGADIS 81 The VEGADIS 81 is an external display and adjustment unit for VEGA plics sensors. ® For sensors with double chamber housing the interface adapter "DIS- ADAPT" is also required for VEGADIS 81.
  • Page 13 The length and the process fittings can be configured individually. No different connection versions available. You can find further information in the operating instructions manual "Bypass tube VEGAPASS 81". Spacer If you mount the VEGAFLEX 86 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 operating instructions manual "Centering". VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 14: Mounting 4.1 General Instructions

    Process fitting • Process seal Process conditions are particularly: • Process pressure • Process temperature • Chemical properties of the medium • Abrasion and mechanical influences You can find detailed information on the process conditions in chapter "Technical data" as well as on the type label. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 15: Mounting Instructions

    Mounting instructions Installation position Mount VEGAFLEX 86 in such a way that the distance to vessel instal- lations or to the vessel wall is at least 300 mm (12 in). In non-metallic vessels, the distance to the vessel wall should be at least 500 mm (19.7 in).
  • Page 16 In such cases, always carry out a false signal suppression after instal- lation. You can find further information under "Setup procedure". _ < DN40 ... DN150 _ < > DN150 ... DN200 Fig. 6: Mounting socket When welding the socket, make sure that the socket is flush with the vessel top. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 17 The reference plane for the measuring range of the sensors is the sealing surface of the thread or flange. Keep in mind that a min. distance must be maintained below the refer- ence plane and possibly also at the end of the probe - measurement VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 18 If durability is no problem, we recommend the use of uncoated metal standpipes. When the VEGAFLEX 86 is used in bypass tubes, contact with the tube wall must be avoided. We recommend for this purpose a cable probe with centering weight.
  • Page 19 (dead band) of the probe is above the tube end or below the upper filling hole. This allows you to measure the total level range of the medium in the standpipe. When designing the standpipe, keep the blocking distance of the probe in mind and plan the length above the upper lateral filling opening accordingly. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 20 If durability is no problem, we recommend the use of uncoated metal standpipes. When the VEGAFLEX 86 is used in standpipes, contact with the tube wall must be avoided. We recommend for this purpose a cable probe with centering weight.
  • Page 21 The 0 % point in standpipes should be above the gravity or center- ing weight. • A false signal suppression with installed sensor is generally rec- ommended to achieve the best possible accuracy. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 22 If there is a danger of the rod probe touching the vessel wall, then the probe must be fastened at the bottom end. Keep in mind that below the fastening, a measurement is not possible. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 23 If installations such as struts, ladders, etc. exist on the vessel wall, then the probe should have a distance to the vessel wall of at least 300 mm (11.81 in). You can find further information in the supplementary instructions of the rod extension. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 24: Connecting To Power Supply 5.1 Preparing The Connection

    The signal conditioning instruments VEGAMET and VEGASCAN Connection to signal con- ditioning instruments have digital sensor recognition. When connecting VEGAFLEX 86, an up-to-date version of the signal conditioning instrument software is required. For a software update go to "www.vega.com/downloads" and "Software".

  • Page 25: Connecting

    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 cable into the sensor through the cable entry VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 26 7. Check the hold of the wires in the terminals by lightly pulling on them 8. Connect the screen to the internal ground terminal, connect the outer ground terminal to potential equalisation VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 27: Wiring Plan, Single Chamber Housing

    The following illustrations apply to the non-Ex as well as to the Ex-ia version. Electronics compartment 4...20mA 6 7 8 Fig. 16: Electronics compartment, double chamber housing Internal connection to the terminal compartment For display and adjustment module or interface adapter VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 28 Parallel use of an external display and adjustment unit and a display and adjustment module in the terminal compartment is not supported. Terminal compart- ment - Radio module PLICSMOBILE Status SIM-Card Test Fig. 18: Terminal compartment, radio module PLICSMOBILE Voltage supply You can find detailed information on connection in the supplementary instructions "PLICSMOBILE GSM/GPRS radio module". VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 29: Wiring Plan, Ex-D-Ia Double Chamber Housing

    Internal connection to the plug connector for external display and adjust- ment unit (optional) Note: HART multidrop mode is not possible when using an Ex-d-ia instru- ment. Terminal compartment 4...20mA Fig. 20: Terminal compartment, double chamber housing Ex d ia Voltage supply, signal output 2 Ground terminal for connection of the cable screen VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 30 Pin 1 Pin 2 Pin 3 Pin 4 Contact pin Colour connection ca- Terminal, electronics ble in the sensor module Pin 1 Brown Pin 2 White Pin 3 Blue Pin 4 Black VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 31: Double Chamber Housing With Dis-Adapt

    Pin 1 Pin 2 Pin 3 Pin 4 Contact pin Colour connection ca- Terminal, electronics ble in the sensor module Pin 1 Brown Pin 2 White Pin 3 Blue Pin 4 Black VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 32: Wiring Plan - Version Ip 66/Ip 68, 1 Bar

    2 Second current output (II) - Voltage supply and signal output (without HART) 3 Ground terminal for connection of the cable screen Supplementary elec- The radio module PLICSMOBILE is an external GSM/GPRS radio tronics - Radio module unit for transmission of measured values and for remote parameter PLICSMOBILE adjustment. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 33: Switch-On Phase

    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 setting. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 34: Set Up With The Display And Adjustment Module 6.1 Insert Display And Adjustment Module

    The display and adjustment module is powered by the sensor, an ad- ditional connection is not necessary. Fig. 28: Installing the display and adjustment module in the electronics compart- ment of the single chamber housing VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 35: Adjustment System

    Adjustment system Fig. 30: Display and adjustment elements 1 LC display Adjustment keys • Key functions [OK] key: VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 36: Parameter Adjustment - Quick Setup

    [OK] will not be saved. Switch-on phase After switching on, the VEGAFLEX 86 carries out a short 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 during the startup procedure: •...
  • Page 37 In this menu item, you can enter the max. adjustment for the level. Enter the appropriate distance value in m (corresponding to the percentage value) for the full vessel. The distance refers to the sensor VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 38 Enter the actual distance from the sensor to the product surface. All interfering signals in this section are detected by the sensor and stored. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 39: Parameter Adjustment - Extended Adjustment

    Here you can assign a suitable measurement loop name. Push the loop name "OK" key to start the editing. With the "+" key you change the sign and with the "->" key you jump to the next position. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 40 You have the option of choosing the demonstration mode. This mode is only suitable for test and demonstration purposes. In this mode, the sensor ignores the parameters of the application and reacts immedi- ately to each change. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 41 Setup - Max. adjustment In this menu item you can enter the max. adjustment for the level. With Level interface measurement this is the maximum total level. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 42 Interface urement under the menu item "Application". You can accept the adjustment of the level measurement also for the interface measurement. If you select "Yes", the current setting will be displayed. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 43 They represent the correlation between the level percentage and vessel volume. The linearization applies to the measured value indication and the current output. By activating the appropriate curve, the volume per- VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 44 Fig. 31: Vessel height and socket correction value D Vessel height +h Positive socket correction value -h Negative socket correction value VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 45 You can accept the scaling of the level measurement also for the interface measurement. If you select "Yes", the current setting is displayed. If you have selected "No", you can enter the scaling for the interface separately. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 46 In the menu item "Current output mode" you determine the output mode characteristics and reaction of the current output in case of failure. The default setting is output characteristics 4 … 20 mA, failure mode < 3.6 mA. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 47 TV (third value) and the fourth HART value QV (quarter value) of the sensor displayed. The values cannot be changed in the display and adjustment module. To change these values, you have to use the adjustment software PACTware. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 48 Lock/unlock setup - Ad- In the menu item "Lock/unlock adjustment", you can protect the sen- justment sor parameters against unauthorized or inadvertent modification. The PIN is activated/deactivated permanently. With active PIN, only the following adjustment functions are possible without entering a PIN: VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 49 In the delivery status, the sensor is set to the ordered national lan- guage. Display - Displayed value In this menu item, you define the indication of the measured value on the display. You can display two different measured values. In this menu item, you define measured value 1. The default setting for the displayed value 1 is "Filling height Level". Display - Displayed value In this menu item, you define the indication of the measured value on the display. You can display two different measured values. In this menu item, you define measured value 2. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 50 If you have selected interface measurement under the menu item "Setup - Application", the peak values of the interface measurement are displayed in addition to the peak values of the level measurement. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 51 In this menu item you can simulate measured values via the current output. This allows the signal path to be tested, e.g. through down- stream indicating instruments or the input card of the control system. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 52 Entering a 4-digit PIN protects the sensor data against unauthorized Additional settings - PIN access and unintentional modification. In this menu item, the PIN is displayed or edited and changed. However, this menu item is only VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 53 Default value Modified value Lock adjustment Released Measurement loop name Sensor Units Distance unit: mm Temperature unit: °C Probe length Length of the probe Ex factory Type of medium Liquid Application Level, vessel VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 54 First HART variable (PV) Current output - Output characteristics 0 … 100 % correspond to 4 … 20 mA Current output - Reaction in case of failure ≤ 3.6 mA Current output - Min. 3.8 mA VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 55 Device memory - Measured value memory - Stop Not active with measured value Device memory - Measured value memory - Stop Not active recording when memory is full VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 56 Additional adjustments - In this menu item you gain access to the protected area where Special parameters you can enter special parameters. In exceptional cases, individual parameters can be modified in order to adapt the sensor to special requirements. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 57 PC. Info - Sensor character- In this menu item, the features of the sensor such as approval, pro- istics cess fitting, seal, measuring range, electronics, housing and others are displayed. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 58: Saving The Parameter Adjustment Data

    If it is necessary to exchange a sensor, the display and adjustment module is inserted into the replacement instrument and the data are likewise written into the sensor via the menu item "Copy sensor data". VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 59: Setup With Pactware 7.1 Connect The Pc

    5 Interface adapter, for example VEGACONNECT 4 Note: With power supply units with integrated HART resistance (internal resistance approx. 250 Ω), an additional external resistance is not necessary. This applies, e.g. to the VEGA instruments VEGATRENN 149A, VEGAMET 381, VEGAMET 391. Common Ex separators are also usually equipped with a sufficient current limitation resistance. In VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 60: Parameter Adjustment With Pactware

    In the standard version, all functions for complete setup are already included. An assistant for simple project configuration simplifies the adjustment considerably. Saving/printing the project as well as import/export functions are also part of the standard version. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 61: Set Up With The Quick Setup

    2 Extended adjustment Maintenance Quick setup With quick setup you can carry out the parameter adjustment of VEGAFLEX 86 for your application in just a few simple steps. The assistant-driven adjustment includes the basic settings for simple, reliable setup and commissioning. Information: If the function is inactive, then possibly no instrument is connected.
  • Page 62 If this function is inactive, the medium type your instrument is suit- able for was already preset. Information: In special cases you can change the type of medium. This setting can be changed under "Extended adjustment". VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 63 If you have selected level measurement in the previous menu, then you can enter the values for the min. and max. adjustment. The value to be entered refers to the distance from the sealing surface of the process fitting (sensor reference plane) to the surface of the product. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 64 Additional settings be made. These are various backups and the locking of the instru- ment against unauthorised or inadvertent adjustment. Prepare a backup file of the instrument parameter adjustment? For backup purposes, the current parameter adjustment of the instru- ment is stored in a file. You can use this file later on to restore the VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 65: Saving The Parameter Adjustment Data

    PIN is entered again. 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. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 66: Set Up With Other Systems 8.1 Dd Adjustment Programs

    This software is updated via the Internet and new EDDs are automatically taken over into the device catalogue of this software after they are released by the manufacturer. They can then be transferred to a Field Communicator. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 67: Maintenance

    Echo curve of the setup: This is used as reference echo curve for the measurement conditions during setup. Changes in the measure- ment conditions during operation or buildup on the sensor can thus be recognized. The echo curve of the setup is stored via: • PC with PACTware/DTM • Control system with EDD VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 68: Status Messages

    PACTware/DTM or EDD. Out of specification: The measured value is unstable because the instrument specification is exceeded (e.g. electronics temperature). This status message is inactive by default. It can be activated by the user via PACTware/DTM or EDD. Maintenance: Due to external influences, the instrument function is limited. The measurement is affected, but the measured value is VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 69 5 min. F113 – EMC interference – Remove EMC influences – Transmission error with the – Exchange 4-wire power Communica- external communication supply unit or electronics tion error with 4-wire power supply unit VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 70 Simulation ac- after 60 mins. tive Out of specification The following table shows the error codes and text messages in the status message "Out of specification" and provides information on causes as well as corrective measures. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 71 – Change polarisation direc- tion – Use instrument with higher sensitivity M504 – Hardware defect – Check connections – Exchanging the electronics Error on an device inter- – Send instrument for repair face VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 72: Rectify Faults

    22 mA or less sensor defec- than 3.6 mA tive Treatment of measure- The below tables show typical examples for application-relevant ment errors measurement errors. There are two measurement errors: • Constant level VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 73 – Check parameter "Medium" mains in the area of the than the product echo, for and "Vessel height", adapt if bottom during filling example, with products with necessary ε < 2.5 oil-based, solvents, etc. time VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 74: Exchanging The Electronics Module

    24 hour service hotline Should these measures not be successful, please call in urgent cases the VEGA service hotline under the phone no. +49 1805 858550. The hotline is also available outside normal working hours, seven days a week around the clock.

  • Page 75: Exchange Or Shorten Cable/Rod

    4. Screw the new rod and the new cable manually to the thread on the process fitting. 5. Exert counterforce with the second fork spanner and tighten the measuring rod or cable on the flat surfaces with a torque of 20 Nm (15 lbf ft). VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 76 7. Cable with gravity weight: Fasten cable with the pins, torque 7 Nm (5.16 lbf ft) Cable with centering weight: Fasten cable with the pins, torque 7 Nm (5.16 lbf ft) and fix the clamping part on the centering weight. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 77: Software Update

    How to proceed if a repair is needed You can find a repair form as well as detailed information on how to proceed at www.vega.com/downloads and "Forms and certificates". By doing this you help us carry out the repair quickly and without hav- ing to call back for needed information. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 78 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 the return shipment. You can find the agency on our home page www.vega.com. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 79: Dismounting Steps

    Pass the instrument directly on to a spe- cialised recycling company and do not use the municipal collecting points. These may be used only for privately used products according to the WEEE directive. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 80: Technical Data

    0.8 … 8 kg (0.176 … 17.64 lbs) process fitting) Ʋ Rod: ø 8 mm (0.315 in) approx. 400 g/m (4.31 oz/ft) Ʋ Cable: ø 2 mm (0.079 in) approx. 20 g/m (0.22 oz/ft) Ʋ Cable: ø 4 mm (0.157 in) approx. 80 g/m (0.86 oz/ft) Ʋ Gravity weight approx. 325 g (11.5 oz) VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 81 2.5 KN (562 lbf) (0.157 in) Thread in gravity weight (cable version) M 12 Input variable Measured variable Level of liquids Min. dielectric constant of the medium - ε > 1.7 rod, cable version VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 82 HART output values according to HART 7 (default setting) Ʋ First HART value (PV) Linearised percentage value, level Ʋ Second HART value (SV) Distance to the level The output values can be assigned individually VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 83 No gating out of false signals carried out Typical deviation - Interface measure- ± 5 mm (0.197 in) ment The indication values can be assigned individually The indication values can be assigned individually With interface measurement = 2.0 VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 84 (0.079") -25 mm (-0.984") 0,15 m 0,2 m 0,05 m (5.906") (7.874") (1.968") 0,05 m (1.968") Fig. 50: Deviation VEGAFLEX 86 in rod version in oil Dead band - no measurement possible in this area Probe length Depending on the installation conditions, deviations can occur which can be rectified by adapting the adjust- ment or changing the measured value offset in the DTM service mode The dead bands can be optimized via a false signal suppression. VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 85 -15 mm (-0.591 " 0,15 m 0,2 m 0,1 m (5.906 (7.874 " ") (3.937 0,08 m ") (3.15 ") Fig. 52: Deviation VEGAFLEX 86 in cable version 2 mm (0.079 in), in oil Dead band - no measurement possible in this area Probe length VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 86 Positive values mean that the measured distance is too large, negative values that the measured distance is too small. Also for the additional current output (optional) VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 87 The measurement error from the process conditions is in the specified pressure and temperature range of below 1 %. Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2). VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 88 Ʋ Max. length 180 m (590.6 ft) Ʋ Min. bending radius 25 mm (0.984 in) with 25 °C (77 °F) Ʋ Diameter approx. 8 mm (0.315 in) Ʋ Colour - Non-Ex version Black VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 89 Permissible residual ripple - Non-Ex, Ex-ia instrument Ʋ Frequency 16 … 400 Hz Ʋ for 12 V< U < 18 V ≤ 0.7 V Ʋ for 18 V< U < 35 V ≤ 1.0 V Permissible residual ripple - Ex-d-ia instrument Ʋ Frequency 16 … 400 Hz VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...

  • Page 90: Dimensions

    Instruments with approvals can have different technical specifications depending on the version. For that reason the associated approval documents of these instruments have to be carefully noted. They come with the delivery or can be downloaded under www.vega.com, "VEGA Tools" and "Instrument search" as well as under www.vega.com/downloads and "Approvals". 11.2 Dimensions The following dimensional drawings represent only an extract of all possible versions.
  • Page 91 ~ 116 mm ~ 87 mm (4.57") (3.43") ø 86 mm ø 86 mm (3.39") (3.39") M16x1,5 M20x1,5 M20x1,5/ ½ NPT M20x1,5/ ½ NPT Fig. 56: 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 Single chamber version Double chamber version VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 92 ø 79 mm (3.39") (3.15") (3.11") M16x1,5 M20x1,5/ ½ NPT M20x1,5/ M20x1,5/ ½ NPT ½ NPT Fig. 58: 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 Single chamber version, electropolished Single chamber version, precision casting Double chamber version, precision casting VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 93 (3.15") (3.11") M16x1,5 M20x1,5 M20x1,5/ ½ NPT M20x1,5/ ½ NPT Fig. 59: Housing versions with protection rating IP 66/IP 68 (1 bar) - with integrated display and adjustment module the housing is 9 mm/0.35 in higher Single chamber version, electropolished Single chamber version, precision casting Double chamber version, precision casting VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 94 (0.08") ø 20 mm (0.79") ø 16 mm ø 16 mm (0.63") (0.63") ø 20 mm ø 20 mm (0.79") (0.79") Fig. 60: VEGAFLEX 86, threaded version with gravity weight (all gravity weights with thread M8 for eye-bolt) Sensor length, see chapter "Technical data" Cable ø 4 mm (0.157 in) Cable ø 2 mm (0.079 in) Max. height of the vessel isolation VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 95 VEGAFLEX 86, cable version with centering weight SW 41 mm ø 4 mm ø 2 mm / (0.08") (0.16") Fig. 61: VEGAFLEX 86, threaded version with centering weight Sensor length, see chapter "Technical data" ø 40 mm (1.57 in) ø 45 mm (1.77 in) ø 75 mm (2.95 in) ø 95 mm (3.74 in) (see supplementary instructions manual "Centering") Max. height of the vessel isolation VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 96 11 Supplement VEGAFLEX 86, rod version SW 41 mm ø 8 mm (0.32") Fig. 62: VEGAFLEX 86, threaded version Sensor length, see chapter "Technical data" Max. height of the vessel insulation VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 97 Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellec- tuelle. Pour plus d'informations, on pourra se référer au site www.vega.com. VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad indus- trial. Para mayor información revise la pagina web www.vega.com.
  • Page 98 Error codes 70 Event memory 67 Read out info 57 Repair 77 Replacement parts Factory calibration date 57 – Bypass 13 False signal suppression 48 – Display and adjustment module with VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 99 Sensor characteristics 57 Sensor status 50 Service hotline 74 Simulation 51 Special parameters 56 Status messages - NAMUR NE 107 68 Type label 7 Type of medium 40 Units 40 Vessel insulation 22 VEGAFLEX 86 • 4 … 20 mA/HART - two-wire...
  • Page 100 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2015 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...

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