Vega MINITRAC 31 Operating Instructions Manual
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Vega MINITRAC 31 Operating Instructions Manual

Radiometric sensor for density measurement
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Operating Instructions
Radiometric sensor for density
measurement
MINITRAC 31
Foundation Fieldbus
Document ID: 41782

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Summary of Contents for Vega MINITRAC 31

  • Page 1 Operating Instructions Radiometric sensor for density measurement MINITRAC 31 Foundation Fieldbus Document ID: 41782...

  • Page 2: Table Of Contents

    Saving the parameterisation data ................... 64 Set up with other systems ....................65 DD adjustment programs ....................65 Field Communicator 375, 475 ..................65 Diagnostics and servicing ....................66 Maintenance ........................66 Status messages ......................66 MINITRAC 31 • Foundation Fieldbus...
  • Page 3 11.2 Device communication Foundation Fieldbus ..............79 11.3 Dimensions ........................83 11.4 Industrial property rights ....................86 11.5 Trademark ........................86 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. Editing status: 2021-11-25 MINITRAC 31 • Foundation Fieldbus...

  • Page 4: About This Document

    Symbols used Document ID This symbol on the front page of this instruction refers to the Docu- ment ID. By entering the Document ID on www.vega.com you will reach the document download. Information, note, tip: This symbol indicates helpful additional infor- mation and tips for successful work.

  • Page 5: For Your Safety

    All operations described in this documentation must be carried out only by trained, qualified personnel authorised by the plant operator. During work on and with the device, the required personal protective equipment must always be worn. Appropriate use The MINITRAC 31 is a sensor for density measurement and level detection. 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: Eu Conformity

    Protection of the environment is one of our most important duties. 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 fulfil this obligation by observing the environmental instructions in this manual: • Chapter " Packaging, transport and storage" • Chapter " Disposal" MINITRAC 31 • Foundation Fieldbus...

  • Page 7: Product Description

    " Google Play Store" • Scan the QR-code on the type label of the device or • Enter the serial number manually in the app Scope of this operating This operating instructions manual applies to the following instrument instructions versions: • Hardware from 1.0.5 • Software from 2.1.0 MINITRAC 31 • Foundation Fieldbus...

  • Page 8: Principle Of Operation

    The measured value is detected contactlessly right through the vessel wall. Neither a process fitting nor a vessel opening are required. The instrument is thus ideal for retro installation. The instrument can be used for many different measuring tasks. Apart from the main applications such as density measurement and level detection, the MINITRAC 31 can also detect residues and the mass flow rate in conjunction with a flow meter. MINITRAC 31 • Foundation Fieldbus...
  • Page 9 3 Product description Fig. 2: MINITRAC 31 - Application possibilities Level measurement - Residue detection Point level detection Density measurement 4 Mass flow measurement Further application possibilities are also the use as X-ray alarm or real value correction. If X-ray alarm is selected, the instrument detects radiation from exter- nal sources.

  • Page 10: Packaging, Transport And Storage

    USB interface of a PC. VEGADIS 81 The VEGADIS 81 is an external display and adjustment unit for VEGA plics sensors. ® Electronics module - The electronics module PT30… is a replacement part for radiometric PT30 sensors MINITRAC 31. It is located in the large electronics and connection compartment. MINITRAC 31 • Foundation Fieldbus...
  • Page 11 Supplementary electron- The supplementary electronics module PROTRAC.ZE… is a replace- ics module - PROTRAC. ment part for radiometric sensors MINITRAC 31. It is located in the lateral adjustment and connection compartment. Mounting accessories Brackets and special mounting accessories are available for mount- ing the MINITRAC 31.

  • Page 12: Corresponding Source Container

    In Germany, for example, the current radiation protection ordinance (StrlSchV) based on the Atomic Energy Law (AtG) applies. The following points are important for measurement with radiometric methods: Handling permit A handling permit is required for operation of a system using gamma rays. This permit is issued by the respective government office or the responsible authority (in Germany, for example, offices for environ- mental protection, trade supervisory boards, etc.) You can find further instructions in the operating instructions manual of the source container. MINITRAC 31 • Foundation Fieldbus...
  • Page 13 Control area Control areas are areas in which the local dose rate exceeds a certain value. Only persons who undergo official dose monitoring are allowed into these control areas. You can find the respectively valid limit values for control areas in the guideline of the respective authority (in Ger- many, for example, the radiation protection ordinance). We are at your disposal for further information concerning radiation protection and regulations in other countries. MINITRAC 31 • Foundation Fieldbus...

  • Page 14: Mounting

    These are mainly: • Active measuring component • Process fitting • Process seal Process conditions in particular are: • Process pressure • Process temperature • Chemical properties of the medium • Abrasion and mechanical influences MINITRAC 31 • Foundation Fieldbus...

  • Page 15: Mounting Instructions

    The following mounting information is applicable as long as there is nothing else specified in the "Source Sizing" document. You can find information on protective barriers and the mounting of the corresponding source container in the operating instructions manual of the source container, e.g. VEGASOURCE. You can mount the MINITRAC 31 in any position. If you have ordered your instrument with a lead cover as a protection against ambient radiation (optionally), the the sensor is shielded laterally against X-ray radiation. In this case, the radiation can only penetrate frontally. Fasten the sensors in such a way that they cannot fall out of the holder.
  • Page 16 Fig. 5: Installation on a horizontal pipeline Air bubbles Buildup Density measurement A density and concentration measurement is possible on pipelines and vessels. The accuracy of the measurement increases in propor- tion to the radiated length (L) of medium. This is particularly important in the case of products with low density or small tube diameters. There are different ways to increase the radiated length (L) of the medium. MINITRAC 31 • Foundation Fieldbus...
  • Page 17 Integrated lead cover as protection against ambient radiation - the instru- ment is hence shielded laterally With density measurement, the radiation difference with differing density is very low. Especially with small tube diameters, the change is negligible. Therefore it is important to shield from interfering X-ray radiation. To protect the instrument against X-ray radiation, it can be be equipped with an optional lead ring. A later retrofitting of the lead ring is not possible. MINITRAC 31 • Foundation Fieldbus...
  • Page 18 Flow meter MINITRAC 31 Point level detection For level detection, the sensor is generally mounted horizontally at the height of the requested limit level. Make sure that there are no struts or reinforcements at this position in the vessel. Direct the exit beam of the source container exactly towards the measuring range of MINITRAC 31. MINITRAC 31 • Foundation Fieldbus...
  • Page 19 Vertical mounting Mounting horizontally, at right angles to container Level measurement - Residue detection The MINITRAC 31 can be used for residue detection, e.g. in storage tanks for high-cost liquids. For this purpose, the instrument must be mounted at the lowest point of the vessel. MINITRAC 31 • Foundation Fieldbus...
  • Page 20 If these measures are not sufficient to maintain the max. ambient temperature, you could consider using the water or air cooling system we offer for MINITRAC 31. The cooling system must also be included in the calculations for the measuring point. Contact our specialists regarding the dimensioning of the cooling. MINITRAC 31 • Foundation Fieldbus...

  • Page 21: Connecting To Power Supply

    Signal cable Use for the signal output a cable according to the respective bus specifications. Cable glands Metric threads In the case of instrument housings with metric thread, the cable glands are screwed in at the factory. They are sealed with plastic plugs as transport protection. You have to remove these plugs before electrical connection. MINITRAC 31 • Foundation Fieldbus...
  • Page 22 Proceed as follows: Connection procedure The procedure applies to instruments without explosion protection. 1. Unscrew the big housing cover 2. Loosen compression nut of the cable gland and remove blind plug 3. 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 4. Insert the cable into the sensor through the cable entry MINITRAC 31 • Foundation Fieldbus...
  • Page 23 9. Tighten the compression nut of the cable entry gland. The seal ring must completely encircle the cable 10. Screw the housing lid back on The electrical connection is finished. Information: The terminal blocks are pluggable and can be detached from the electronics. To do this, loosen the two lateral locking levers of the terminal block with a small screwdriver. When loosening the locking, the terminal block is automatically squeezed out. It must snap in place when re-inserted. MINITRAC 31 • Foundation Fieldbus...

  • Page 24: Connection - Density, Mass Flow Rate Measurement

    Fig. 12: Adjustment and connection compartment with non-Ex instruments and instruments with non-intrinsically safe signal output Terminals for the external display and adjustment unit Contact pins for the display and adjustment module or interface adapter MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...
  • Page 25 Signal input 4 … 20 mA (active sensor) Switching input for NPN transistor 5 Switching input floating Transistor output Interface for sensor-sensor communication (MGC) Simulation switch (1 = simulation on) Setting the bus address for sensor-sensor communication (MGC) MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...
  • Page 26 Fig. 14: Adjustment and connection compartment (Ex-ia) with instruments with intrinsically safe signal output Terminals for intrinsically safe signal output FF bus Contact pins for the display and adjustment module or interface adapter Terminals for the external display and adjustment unit Ground terminal MINITRAC 31 • Foundation Fieldbus...

  • Page 27: Connection - Level Detection

    Terminals for the external display and adjustment unit Contact pins for the display and adjustment module or interface adapter Connection to a PLC If inductive loads or stronger currents are switched through, the gold plating on the relay contact surface will be permanently damaged. MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...
  • Page 28 Signal input 4 … 20 mA (active sensor) Switching input for NPN transistor 5 Switching input floating Transistor output Interface for sensor-sensor communication (MGC) Simulation switch (1 = simulation on) Setting the bus address for sensor-sensor communication (MGC) MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...
  • Page 29 Ground terminal Connection to a PLC If inductive loads or stronger currents are switched through, the gold plating on the relay contact surface will be permanently damaged. The contact is then no longer suitable for switching low-voltage circuits. Inductive loads also result from the connection to a PLC input or output and/or in combination with long cables. It is imperative that you take measures to extinguish sparks to protect the relay contact (e.g. Z diode) or the transistor or 8/16 mA output. MINITRAC 31 • Foundation Fieldbus...

  • Page 30: Set Up With The Display And Adjustment Module

    4. Screw housing lid with inspection window tightly back on Disassembly is carried out in reverse order. The display and adjustment module is powered by the sensor, an ad- ditional connection is not necessary. Fig. 19: Insert display and adjustment module Note: If you intend to retrofit the instrument with a display and adjustment module for continuous measured value indication, a higher lid with an inspection glass is required. MINITRAC 31 • Foundation Fieldbus...

  • Page 31: Adjustment System

    When the [OK] and [ESC] keys are pressed simultaneously for more than 5 s, the display returns to the main menu. The menu language is then switched over to " English". Approx. 60 minutes after the last pressing of a key, an automatic reset to measured value indication is triggered. Any values not confirmed with [OK] will not be saved. MINITRAC 31 • Foundation Fieldbus...

  • Page 32: Parameter Adjustment - Level Measurement

    The procedure is described in the following. Stick with the normal sequence of the menu items as closely as pos- sible. 6.3.1 Setup Isotope In this menu item you can adjust the MINITRAC 31 to the isotope installed in the source container. For this purpose, check which isotope is in the source container. You can find this information on the type label of the source container. MINITRAC 31 • Foundation Fieldbus...
  • Page 33 Radiation is switched on - Source container is set to "ON" The vessel is either completely filled (100 %) or completely emptied (0 %). Depending on whether the vessel is full or empty, you can first carry out the full or the empty adjustment. The MINITRAC 31 sorts the points automatically according to their level. Select " Show table" to display and edit the linearisation points. Select " Linearisation - New" to enter the first point. Select " Determine count rate" to enter the first point.
  • Page 34 This does not apply if " X-ray alarm" is selected as reference value. In this case the fault message is not active. Caution: Independent of the selected reference value, the relay will deenergize in case of failure. Except with " X-ray radiation" as reference value. In this case a failure signal is not active. MINITRAC 31 • Foundation Fieldbus...
  • Page 35 The following table shows the default values of the instrument. The values apply for the application " Level". First of all you have to select the application. Depending on the instrument version, not all menu items may be available or they may be differently assigned: MINITRAC 31 • Foundation Fieldbus...

  • Page 36: Parameter Adjustment - Density Measurement

    Parameter adjustment - Density measurement The instrument is adapted to the application conditions via the pa- rameter adjustment. The parameter adjustment is carried out with an adjustment menu. Prerequisites The following requirements must be fulfilled for reliable and safe operation: • The tube must be filled. There must be no air bubbles in the tube • The source container is switched on • A sample point is close to the measuring point MINITRAC 31 • Foundation Fieldbus...
  • Page 37 The procedure is described in the following. Stick with the normal sequence of the menu items as closely as pos- sible. 6.4.1 Setup Isotope In this menu item you can adjust the MINITRAC 31 to the isotope installed in the source container. For this purpose, check which isotope is in the source container. You can find this information on the type label of the source container. MINITRAC 31 • Foundation Fieldbus...
  • Page 38 The normal reduction of source activity through radioactive decay is thus taken into account. The MINITRAC 31 requires this information for the automatic decay compensation. This ensures error-free measurement over the entire lifetime of the gamma emitter - an annual recalibration is not neces- sary.
  • Page 39 In this menu item you can enter the inside diameter of the tube or the radiated length (L). This setting influences the accuracy of the sensor. First of all, select the unit of the inside diameter. Enter in the menu window " Inside diameter" the inside diamter of the tube, for example in " cm". If the tube is not radiated with 90°, then you have to enter the radiated length (L) instead of the tube inside diameter. Enter also here the radiated length without the wall thickness of the tube. MINITRAC 31 • Foundation Fieldbus...
  • Page 40 Carry out this adjustment with several points to increase the accuracy of the measurement. Note: Water has as a known density value of 1 g/cm . Carry out the adjust- ment with water, if possible. • Prerequisites: Radiation is switched on - Source container is set to "ON" The tube is completely filled. Possible gas bubbles or air inclusions can influence the measurement. The MINITRAC 31 sorts the points automatically according to their density. MINITRAC 31 • Foundation Fieldbus...
  • Page 41 If possible, take a product sample and determine the density simulta- neously in your sampling position. It has proven marking the product smaples with date and respec- tive count rate. Hence the values can be assigned later on without problems. Accept the value pair with " OK". Enter as many linearization points as possible. You can influence the accuracy of the density measurement by doing this. The more linearization points you enter and the higher the difference between the density values, the more reliable the measurement. MINITRAC 31 • Foundation Fieldbus...
  • Page 42 If you cannot change the medium during the adjustment process, it is possible to carry out the linearization with only one point. However, you should enter further linearization points later, if possible. • Show diagram This menu item is only available if a linearization was already carried out. • Show table In this menu item you can show the individual value pairs of the linearization. • Linearization - Delete You can also delete individual linearization points. Enter the number of the point you want to delete. • Linearization - Modify You can also modify individual linearization points. After editing, you have to activate the complete value pair so that the linearization point will be effective. MINITRAC 31 • Foundation Fieldbus...
  • Page 43 This does not apply if " X-ray alarm" is selected as reference value. In this case the fault message is not active. • None - Relay operates as fail safe relay • Electronics temperature • Process value • External radiation MINITRAC 31 • Foundation Fieldbus...
  • Page 44 Keep the entered PIN number in mind. Operation of the sensor is only possible with this PIN number. Caution: When the PIN is active, adjustment via PACTware/DTM as well as other systems is also blocked. In delivery status, the PIN is 0000. Call our service department if you have modified and forgotten the PIN. 6.4.2 Display In the main menu point " Display", the individual submenu points should be selected one after the other and provided with the correct MINITRAC 31 • Foundation Fieldbus...
  • Page 45 The peak value function holds the max. and min. values during opera- tion. • Pulse rates - min./max. • Temperature - min./max./actually Adjustment data Here you can retrieve the adjustment value of the sensor. This is the percentage value of the difference of the min. and max. adjustment points (Delta I). The value is an indication for the reliability and non- repeadability of the measurement. The higher the difference between the two adjustment points, the higher the differential value (Delta I) and the more reliable the measurement. A Delta I value below 10 % is an indication for a critical measurement. MINITRAC 31 • Foundation Fieldbus...
  • Page 46 Process value Switching function of the relay Information: The simulation is automatically terminated 10 minutes after the last pressing of a key. 6.4.4 Additional adjustments Date/Time In this menu item you can set the actual date, time and display format. MINITRAC 31 • Foundation Fieldbus...
  • Page 47 Temperature unit ° C Adjustment min. process value 0.500 g/cm Adjustment max. process value 1.500 g/cm Inner diameter 0.20 m Linearisation 90000 ct/s and 0.500 g/cm Damping 60 s Real value correction Reference value - Relay None Lock adjustment Released MINITRAC 31 • Foundation Fieldbus...

  • Page 48: Parameter Adjustment - Point Level Detection

    Date of manufacture - shows calibration date and the date of the last change • Device ID - shows the device ID and the sensor TAG (PD_TAG) • Instrument features - shows further instrument features, such as e.g. approval, electronics … Examples for info display: Parameter adjustment - Point level detection The instrument is adapted to the application conditions via the pa- rameter adjustment. The parameter adjustment is carried out with an adjustment menu. MINITRAC 31 • Foundation Fieldbus...
  • Page 49 The procedure is described in the following. Stick with the normal sequence of the menu items as closely as pos- sible. 6.5.1 Setup Isotope In this menu item you can adjust the MINITRAC 31 to the isotope installed in the source container. For this purpose, check which isotope is in the source container. You can find this information on the type label of the source container. MINITRAC 31 • Foundation Fieldbus...
  • Page 50 The normal reduction of source activity through radioactive decay is thus taken into account. The MINITRAC 31 requires this information for the automatic decay compensation. This ensures error-free measurement over the entire lifetime of the gamma emitter - an annual recalibration is not neces- sary.
  • Page 51 Empty the vessel until the sensor is uncovered. For this enter the requested pulse rate manually or let the rate be determined by MINITRAC 31. Automatic determination of the pulse rate should be given preference. The count rate is stated in ct/s. This is the number of counts per sec- ond, i.e. the measured radioactive radiation dose actually reaching the sensor.
  • Page 52 Fill the vessel until the MINITRAC 31 is covered. You thus get the min. pulse rate (ct/s) for the "covered" adjustment. Enter the requested pulse rate manually or let the rate be determined by MINITRAC 31. Automatic determination of the pulse rate should be given preference. You can enter the adjustment point (ct/s) manually. You can let the adjustment point be determined by MINITRAC 31.
  • Page 53 6 Set up with the display and adjustment module You can enter the adjustment point (ct/s) manually. You can let the adjustment point be determined by MINITRAC 31. Relay In this menu item you can select which mode the sensor should oper- ate in. You can choose between overfill and dry run protection. The relay outputs of the sensor react accordingly. Overfill protection = the relay will deenergise (safe state) when the max. level is reached. Dry run protection = the relay will deenergise (safe state) when the min. level is reached. Lock/Unlock adjustment In the menu item " Lock/unlock adjustment", you can protect the sen- sor parameters against unauthorized or inadvertent modification. The...
  • Page 54 Peak value indicator The peak value function holds the max. and min. values during opera- tion. • Pulse rates - min./max. • Temperature - min./max./actually Adjustment data Here, you can retrieve the adjustment value of the sensor. This is the percentage value of the max. pulse rate at which the sensor switches over. MINITRAC 31 • Foundation Fieldbus...
  • Page 55 Note: To carry out a simulation with the display and adjustment module, you have to switch on the simulation switch on the electronics module (switch position 1). You can find the rotary switch on the electronics module in the elec- tronics and connection department (large cover). You can simulate different values: Pulse rate of the sensor Switching function of the relay Information: 10 minutes after the key was pressed for the last time, the simulation is interrupted automatically. You can also interrupt the simulation with the switch on the electronics module. Calculated damping The sensor calculates a suitable integration time automatically. MINITRAC 31 • Foundation Fieldbus...
  • Page 56 The following table shows the default values of the instrument. The values apply for the application " Limit level". First of all you have to select the application. Depending on the instrument version, not all menu items may be available or they may be differently assigned: MINITRAC 31 • Foundation Fieldbus...
  • Page 57 Note: Before the data are copied into the sensor, a check is carried out to determine if the data fit the sensor. If the data do not fit, a fault signal is triggered. When data are being written into the sensor, the display shows which instrument type the data originate from and which TAG number this sensor had. 6.5.5 Info Info In this menu you will find the following menu items: • Instrument name - shows instrument name and serial number MINITRAC 31 • Foundation Fieldbus...

  • Page 58: Parameter Adjustment - X-Ray Alarm

    Hence it is importnat to recog- nized interfering X-ray radiation. The MINITRAC 31 recognizes the X-ray raditation and reacts from an individually definable raditiation volume. The level or density measuring instrument acts as Master and the MINITRAC 31 operates as Slave. First of all, define the function of the Secondary instruments before you define the Primary instrument. The Primary instrument can thus immediately recognize the connected Secondaries. For this purpose, the Secondary instrument must be defined as " X-ray alarm". Select under the menu item " Setup - Application" the function "...
  • Page 59 Stick with the normal sequence of the menu items as closely as pos- sible. 6.6.1 Setup Isotope In this menu item you can adjust the MINITRAC 31 to the isotope installed in the source container. For this purpose, check which isotope is in the source container. You can find this information on the type label of the source container. With this selection, the sensitivity of the sensor is adapted in an opti- mum way to the isotope.

  • Page 60: Parameter Adjustment - Real Value Correction

    Only the address "0 - 0" is reserved for the Primary instrument. The Primary instrument must have the function "Level". For this pur- pose, select under the menu item " Setup - Application" the function "Level". Set the address setting (MGC) on the Primary instrument to "0 - 0". MINITRAC 31 • Foundation Fieldbus...
  • Page 61 Stick with the normal sequence of the menu items as closely as pos- sible. 6.7.1 Setup Isotope In this menu item you can adjust the MINITRAC 31 to the isotope installed in the source container. For this purpose, check which isotope is in the source container. You can find this information on the type label of the source container. With this selection, the sensitivity of the sensor is adapted in an opti- mum way to the isotope.

  • Page 62: Saving The Parameterisation Data

    6 Set up with the display and adjustment module The MINITRAC 31 requires this information for the decay compensa- tion. An annual recalibration is hence not necessary. Enter the requested parameters via the appropriate keys, save your settings with [OK] and jump to the next menu item with the [ESC] and the [->] key. Application Enter here, the respective application.

  • Page 63: Setup With Pactware

    To ensure that all instrument functions are supported, you should always use the latest DTM Collection. Furthermore, not all described functions are included in older firmware versions. You can download the latest instrument software from our homepage. A description of the update procedure is also available in the Internet. Further setup steps are described in the operating instructions manu- al " DTM Collection/PACTware" attached to each DTM Collection and which can also be downloaded from the Internet. Detailed descrip- tions are available in the online help of PACTware and the DTMs. MINITRAC 31 • Foundation Fieldbus...

  • Page 64: Saving The Parameterisation Data

    In addition, there is a tank calculation program as well as a multiviewer for display and analysis of the saved measured value and echo curves. The standard version is available as a download under www.vega.com/downloads and " Software". The full version is avail- able on CD from the agency serving you. Saving the parameterisation data We recommend documenting or saving the parameterisation data via PACTware. That way the data are available for multiple use or service...

  • Page 65: Set Up With Other Systems

    Device descriptions for the instrument are available as EDD for pa- rameterisation with Field Communicator 375 or 475. Integrating the EDD into the Field Communicator 375 or 475 requires the "Easy Upgrade Utility" software, which is available from the manu- facturer. This software is updated via the Internet and new EDDs are automatically accepted into the device catalogue of this software after they are released by the manufacturer. They can then be transferred to a Field Communicator. MINITRAC 31 • Foundation Fieldbus...

  • Page 66: Diagnostics And Servicing

    This status message is inactive by default. Out of specification: The measured value is unreliable because an instrument specification was exceeded (e.g. electronics temperature). This status message is inactive by default. Maintenance required: Due to external influences, the instrument function is limited. The measurement is affected, but the measured value is still valid. Plan in maintenance for the instrument because a failure is expected in the near future (e.g. due to buildup). MINITRAC 31 • Foundation Fieldbus...
  • Page 67 F040 Instrument defective (1092, 1126) Restart instrument Hardware error Temperature outside the specification Exchanging the electronics (1091) Cool the instrument or protect it with iso- lation material against heat/cold F041 Error in the measured value recording Restart instrument Photomultiplier error Exchanging the electronics F052 Invalid parameter adjustment Carry out a reset Faulty configuration MINITRAC 31 • Foundation Fieldbus...
  • Page 68 Call our service Error in the trend recording F141 Secondary instrument does not answer Check Secondary instruments Communication error on the multisensor communica- tion bus Tab. 4: Error codes and text messages, information on causes as well as corrective measures MINITRAC 31 • Foundation Fieldbus...

  • Page 69: Rectify Faults

    Checking the output signal • Treatment of measurement errors Further comprehensive diagnosis possibilities are offered by a PC with the software PACTware and suitable DTM. In many case, the failure reasons can thus be determined and faults rectified. The following table describes possible errors with the output signal Check output signal (level measurement) and helps to remove them: MINITRAC 31 • Foundation Fieldbus...

  • Page 70: Exchanging The Electronics Module

    If the electronics module is defective, it can be replaced by the user. In Ex applications, only instruments and electronics modules with ap- propriate Ex approval may be used. If there is no electronics module available on site, the electronics module can be ordered through the agency serving you. The electron- ics modules are adapted to the respective sensor and differ in signal output or voltage supply. MINITRAC 31 • Foundation Fieldbus...

  • Page 71: Software Update

    You can find detailed information in the download area at www.vega.com. How to proceed if a repair is necessary The following procedure refers only to the sensor. Should a repair of the source container be necessary, you can find the respective instructions in the operating instructions manual of the source con- tainer. You can find an instrument return form as well as detailed informa- tion about the procedure in the download area of our homepage: www.vega.com 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: MINITRAC 31 • Foundation Fieldbus...
  • Page 72 Clean the instrument and pack it damage-proof • 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. MINITRAC 31 • Foundation Fieldbus...

  • Page 73: Dismount

    Directive. These include stationary industrial plants. Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points. If you have no way to dispose of the old instrument properly, please contact us concerning return and disposal. MINITRAC 31 • Foundation Fieldbus...

  • Page 74: Supplement

    The measured variable is the intensity of the gamma ra- diation of an isotope. If the radiation intensity decreases, e.g. due to increasing product density, the measured value of MINITRAC 31 changes in proportion to the density. Analogue input Ʋ Input type 4 …...
  • Page 75 Output variable - Level detection Output Ʋ Signal digital output signal, Foundation Fieldbus protocol Ʋ Physical layer according to IEC 61158-2 Damping (63 % of the input variable) 0 … 999 s, adjustable Channel Numbers Ʋ Channel 1 Process value (switching status) Ʋ Channel 8 Electronics temperature MINITRAC 31 • Foundation Fieldbus...
  • Page 76 Current value 10 mA, ±0.5 mA Resolution, digital > 0.1 mm (0.004 in) Relay output Output Relay output (SPDT), floating spdt Switching voltage max. 253 V AC/DC With circuits > 150 V AC/DC, the relay contacts must be in the same circuit. Switching current max. 3 A AC (cos phi > 0.9), 1 A DC Switching current Ʋ Standard max. 3 A AC (cos phi > 0.9), 1 A DC Ʋ USA, Canada max. 3 A AC (cos phi > 0.9) Breaking capacity Ʋ Min. 50 mW MINITRAC 31 • Foundation Fieldbus...
  • Page 77 Unpressurized Process temperature (measured on the -40 … +60 °C (-40 … +140 °F) detector tube) With temperatures of more than 60 °C we recommend the use of water cooling Vibration resistance mechanical vibrations up to 5 g in the frequency range 5 … 200 Hz 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). Tested according to the guidelines of German Lloyd, GL directive 2. MINITRAC 31 • Foundation Fieldbus...
  • Page 78 Ʋ Digital Via the digital output signal (depending on the electron- ics version) Range -40 … +50 °C (-40 … +122 °F) Resolution < 0.1 K Accuracy ±5 K Voltage supply Operating voltage Ʋ Sensor power supply 24 … 65 V DC (-15 … +10 %) or 24 … 230 V AC (-15 … +10 %), 50/60 Hz Ʋ FF bus 9 … 32 V DC Electrical protective measures Application area Outdoor areas Altitude above sea level 2000 m (6561 ft) MINITRAC 31 • Foundation Fieldbus...

  • Page 79: Device Communication Foundation Fieldbus

    Max. Current Load 10 mA Device minimum operating voltage Transmitter Function Blocks Resource Block (RB) Transducer Block (TB) Standard Block (AI) Execution Time 30 ms Micro-environment in housing: pollution degree 2 A suitable cable is required for maintaining the protection rating. Alternative: Overvoltage category II with operating height up to 5000 m MINITRAC 31 • Foundation Fieldbus...
  • Page 80 FF_WEIGHT_UNIT Selected unit code for “ FF_WEIGHT” FF_BELT_SPEED Belt speed FF_BELT_SPEED_ UNIT FF_BELT_SPEED_ Selected unit code for “ FF_BELT_SPEED” UNIT FF_ELECTRONIC_ Electronics temperature FF_ELECTRONIC_ TEMPERATURE TEMPERATURE_UNIT FF_ELECTRONIC_ Selected unit code for “ FF_ELECTRONIC_TEM- TEMPERATURE_UNIT PERATURE” MINITRAC 31 • Foundation Fieldbus...
  • Page 81 Serial number NAMUR_STATE NAMUR state NULL_COUNT_RATE Zero count rate COUNT_RATE_PMT Pulse rate photomultiplier (raw values) ADJ_DENSITY_ABS_ Process absorption coefficient COEFF DEV_SW_VER_ASCII Software version POINT_LEVEL_AD- Point level adjustment mode JUST_MODE RELAY_VALUE_SEL Relay basic value DIGITAL_IN Frequency of digital input DIGITAL_IN_BOOL State of digital input MINITRAC 31 • Foundation Fieldbus...
  • Page 82 On user error codes: 0, 33, 45, 71, 126, 127 Mapping of User Error Codes to FF Field Diagnostics Priority Description User Error Codes NE-107 Status Hardware failure 40, 41 FAILURE Memory failure 34, 35, 36, 37 FAILURE Software failure FAILURE Paramererization corrupt FAILURE Undefined 27 Undefined 26 MINITRAC 31 • Foundation Fieldbus...

  • Page 83: Dimensions

    Error while signal processing FAILURE Undefined 13 Undefined 12 Undefined 11 Undefined 10 Undefined 9 Undefined 8 AITB simulated FUNCTION_CHECK Undefined 6 Undefined 5 Undefined 4 Undefined 3 Undefined 2 Error while trend recording 126, 127 GOOD Reserved Reserved Not displayed 33, 45, 71, 86 11.3 Dimensions The following dimensional drawings represent only an extract of all possible versions. Detailed dimensional drawings can be downloaded at www.vega.com/downloads under " Drawings". MINITRAC 31 • Foundation Fieldbus...
  • Page 84 Aluminium and stainless steel housing M20x1,5/ 119 mm ½ NPT (4.69") 169 mm (6.65") 116,5 mm 175 mm (4.59") (6.89") 90 mm 100 mm (3.54") (3.94") 143,5 mm (5.65") Fig. 25: Aluminium housing or stainless steel housing (precision casting) MINITRAC 31 • Foundation Fieldbus...
  • Page 85 11 Supplement MINITRAC 31 Fig. 26: MINITRAC 31 Measuring range MINITRAC 31 • Foundation Fieldbus...

  • Page 86: Industrial Property Rights

    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 87 Reset 35, 47, 56 Fault rectification 69 FF parameter 80 Functional principle 9 Service hotline 70 Simulation 46, 55 Source 32, 37, 49, 59, 61 Gamma modulator 11 Source holder 12 Handling permit 12 Time 46, 56 MINITRAC 31 • Foundation Fieldbus...
  • Page 88 INDEX Type label 7 Unit 50 Units 33, 38 Voltage supply 21, 78 Water cooling 20 X-ray alarm 34, 58 MINITRAC 31 • Foundation Fieldbus...
  • Page 89 Notes MINITRAC 31 • Foundation Fieldbus...
  • Page 90 Notes MINITRAC 31 • Foundation Fieldbus...
  • Page 91 Notes MINITRAC 31 • Foundation Fieldbus...
  • Page 92 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2021 VEGA Grieshaber KG Am Hohenstein 113 Phone +49 7836 50-0 77761 Schiltach E-mail: info.de@vega.com...

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