Vega MINITRAC 31 Quick Setup Manual
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Vega MINITRAC 31 Quick Setup Manual

Radiometric sensor for density measurement
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Quick setup guide
Radiometric sensor for density
measurement
MINITRAC 31
Foundation Fieldbus
Document ID: 62076

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Summary of Contents for Vega MINITRAC 31

  • Page 1 Quick setup guide Radiometric sensor for density measurement MINITRAC 31 Foundation Fieldbus Document ID: 62076...

  • Page 2: Table Of Contents

    This quick setup guide enables quick setup and commissioning of your instrument. You can find supplementary information in the corresponding, more detailed Operating Instructions Manual as well as the Safety Manual that comes with instruments with SIL qualification. These manuals are available on our homepage. Operating instructions MINITRAC 31, Foundation Fieldbus: Document-ID 41782 Editing status of the quick setup guide: 2019-07-02 MINITRAC 31 • Foundation Fieldbus...

  • Page 3: 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 4: Eu Conformity

    This process is secured via an algorithm acc. to standard SHA 256. Protection against incorrect entries In case of multiple incorrect PIN entries in the adjustment device, further entries are possible only after a certain amount of time has passed. MINITRAC 31 • Foundation Fieldbus...

  • Page 5: Installation And Operation In The Usa And Canada

    Environmental instructions 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 6: Product Description

    Scan the Data Matrix code on the type label of the instrument or • Enter the serial number manually in the app Principle of operation Application area The instrument is suitable for applications in liquids and bulk solids in vessels under difficult process conditions. There are application pos- sibilities in nearly all areas of industry. MINITRAC 31 • Foundation Fieldbus...
  • Page 7 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. Fig. 2: MINITRAC 31 - Application possibilities Level measurement - Residue detection...

  • Page 8: Corresponding Source Container

    A handling permit is required for operation of a system using gamma Handling permit 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. When handling radioactive sources, unnecessary radiation exposure General instructions for radiation protection must be avoided. An unavoidable radiation exposure must be kept as low as possible. Take note of the following three important measures: Fig. 3: Measures for protection against radioactive radiation Shielding Time Distance Shielding: Provide good shielding between the source and your- self as well as all other persons. Special source containers (e.g. VEGASOURCE) as well as all materials with high density (e.g. lead, iron, concrete, etc.) provide effective shielding. Time: Stay as short a time as possible in radiation exposed areas. MINITRAC 31 • Foundation Fieldbus...
  • Page 9 Control areas are areas in which the local dose rate exceeds a certain Control area 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 10: Mounting

    Make sure before mounting that all parts of the instrument exposed to the process are suitable for the existing process conditions. 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 11: 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 12 Fig. 4: 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 13 Extension of the radiated length (L) by adding a tube angle piece as meas- uring distance 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 14 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 15 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 16 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 17: Connecting To Power Supply

    4. Insert the cable into the sensor through the cable entry Fig. 9: Connection steps 4 and 5 Locking of the terminal blocks 5. Insert a small slotted screwdriver firmly into the rectangular lock openings of the respective connection terminal 6. Insert the wire ends into the round openings of the terminals ac- cording to the wiring plan Information: Solid cores as well as flexible cores with cable end sleeves are inserted directly into the terminal openings. In case of flexible cores without end sleeves, press the rectangular lock opening with a small screwdriver; the terminal opening is freed. When the screwdriver is released, the terminal opening closes again. MINITRAC 31 • Foundation Fieldbus...
  • Page 18 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 19: Connection - Density, Mass Flow Rate Measurement

    Fig. 11: 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 20 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 21 Fig. 13: 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 22: Connection - Level Detection

    Terminals for the external display and adjustment unit Contact pins for the display and adjustment module or interface adapter Instruments with intrinsically safe signal output You can find detailed information on the explosion-protected versions (Ex-ia, Ex-d) in the Ex-specific safety instructions. These safety MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...
  • Page 23 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 MGC = Multi Gauge Communication MINITRAC 31 • Foundation Fieldbus...

  • Page 24: Set Up With The Display And Adjustment Module

    Fig. 18: 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. 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. MINITRAC 31 • Foundation Fieldbus...
  • Page 25 In this menu item you can enter the measuring range (min. and max. process value) of the sensor. These settings influence the current output of the sensor. Enter in the menu window "Max. process value" the max. density value, for example in "g/cm ". This corresponds to an output current of 20 mA. Enter in the menu window "Min. process value" the min. density value, for example in "g/cm ". This corresponds to an output current of 4 mA. MINITRAC 31 • Foundation Fieldbus...
  • Page 26 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. Fig. 19: With inclined mounting, the radiated length of the tube is applicable MINITRAC 31 • Foundation Fieldbus...

  • Page 27: Supplement

    Electromechanical data - version IP 66/IP 67 Cable entry Ʋ M20 x 1.5 2 x cable gland M20 x 1.5 (cable: ø 6 … 12 mm), 4 x blind plug M20 x 1.5 Included: 1 x cable gland M20 x 1.5 Ʋ ½ NPT 5 x closing cap (red) ½ NPT Included: 3 x cable gland ½ NPT (cable: ø 6 … 12 mm), 4 x blind plug ½ NPT Spring-loaded terminals for wire cross-section Ʋ Massive wire, stranded wire 0.2 … 2.5 mm² (AWG 24 … 14) Ʋ Stranded wire with end sleeve 0.2 … 1.5 mm² (AWG 24 … 16) Voltage supply Operating voltage Ʋ Sensor power supply 20 … 72 V DC or 20 … 253 V AC, 50/60 Hz Ʋ FF bus 9 … 32 V DC MINITRAC 31 • Foundation Fieldbus...
  • Page 28 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2019 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...

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