Operating Instructions Radar sensor for continuous level measurement VEGAPULS 31 Two-wire 4 … 20 mA/HART Document ID: 57820
Contents Contents About this document................................................................................................................ 4 1.1 Function............................................................................................................................ 4 1.2 Target group...................................................................................................................... 4 1.3 Symbols used...................................................................
Contents 10.1 Connect the PC............................................................................................................... 40 10.2 Parameter adjustment with PACTware............................................................................. 41 10.3 Saving the parameterisation data.................................................................................... 42 11 Diagnostics and servicing...............................................................................................
1 About this document 1 About this document 1.1 Function 1.2 Target group 1.3 Symbols used This instruction provides all the information you need for mounting, connection and setup as well as important instructions for maintenance, fault rectification, the exchange of parts and the safety of the user. Please read this information before putting the instrument into operation and keep this manual accessible in the immediate vicinity of the device.
2 For your safety 2 2.1 For your safety Authorised personnel 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. 2.2 Appropriate use VEGAPULS 31 is a sensor for continuous level measurement. You can find detailed information about the area of application in chapter "Product description".
2 For your safety with intended use. The band range of the transmission frequency can be found in chapter "Technical data". 2.5 EU conformity The device fulfils the legal requirements of the applicable EU directives. By affixing the CE marking, we confirm the conformity of the instrument with these directives. The EU conformity declaration can be found on our homepage. 2.6 Installation and operation in the USA and Canada This information is only valid for USA and Canada.
3 Product description 3 Scope of delivery Product description 3.
3 Product description Constituent parts 5 4 6 3 2 1 Fig. 1: Components of VEGAPULS 31 1 2 3 4 5 6 Type label Radar antenna Process fitting Process seal Electronics housing Display and adjustment unit Ventilation/pressure compensation The type label contains the most important data for identification and use of the instrument. 1 6 0044 2 3 s/n 12345678 VEGAPULS 3. 12...35V 0...15m 4...20mA HART IP66/IP67, TYPE 4x MWP 3bar (300kPa) PVDF TAG1234 2019 www.vega.
3 Product description • Enter serial number manually in the VEGA Tools app (available free of charge in the respective stores) 3.2 Principle of operation Application area VEGAPULS 31 is a radar sensor for continuous level measurement. It is suitable for liquids and solids in virtually all industries, particularly in the water and waste water industry. Functional principle The instrument emits a continuous, frequency-modulated radar signal through its antenna.
3 Product description 2 4 N OPE 3 USB TWIST LO CK 1 5 Fig. 4: Connecting the PC to the signal cable 1 2 3 4 5 Packaging Sensor HART resistance 250 Ω (optional depending on evaluation) Connection cable with 2 mm pins and terminals Voltage supply Interface adapter VEGACONNECT 3.4 Packaging, transport and storage Your instrument was protected by packaging during transport. Its capacity to handle normal loads during transport is assured by a test based on ISO 4180.
3 Product description 3.5 Accessories The instructions for the listed accessories can be found in the download area on our homepage. Flanges Screwed flanges are available in different versions according to the following standards: DIN 2501, EN 1092-1, BS 10, ASME B 16.5, JIS B 2210-1984, GOST 12821-80. Welded sockets and adapters Welded sockets are used to connect the sensors to the process. Mounting accessories The mounting accessories include e.g.
4 Mounting 4 Mounting 4.1 General instructions Ambient conditions The instrument is suitable for standard and extended ambient conditions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1. It can be used indoors as well as outdoors. Process conditions Note: For safety reasons, the instrument must only be operated within the permissible process conditions. You can find detailed information on the process conditions in chapter "Technical data" of the operating instructions or on the type label.
4 Mounting Polarisation 4.2 Mounting instructions Radar sensors for level measurement emit electromagnetic waves. The polarization is the direction of the electrical component of these waves. The polarization direction is marked on the housing, see following drawing: 1 Fig. 5: Position of the polarisation 1 Marking of the polarisation Note: When the housing is rotated, the direction of polarization changes and hence the influence of the false echo on the measured value.
4 Mounting > 200 mm (7.87") Fig. 7: Mounting of the radar sensor on round vessel tops In vessels with conical bottom it can be advantageous to mount the sensor in the centre of the vessel, as measurement is then possible down to the bottom. Fig. 8: Mounting of the radar sensor on vessels with conical bottom Inflowing medium Do not mount the instruments in or above the filling stream. Make sure that you detect the product surface, not the inflowing product.
ca. 5 mm 4 Mounting Fig. 10: Thread mounting If the reflective properties of the medium are good, you can mount VEGAPULS 31 on sockets longer than the antenna. The socket end should be smooth and burr-free, if possible also rounded. h You will find recommended values for socket heights in the following illustration or the table. The values come from typical applications. Deviating from the proposed dimensions, also longer sockets are possible, however the local conditions must be taken into account.
4 Mounting Fig. 12: Cover flat, large-area profiles with deflectors Sensor orientation In liquids, direct the sensor as perpendicular as possible to the product surface to achieve optimum measurement results. Fig. 13: Alignment in liquids Agitators If there are agitators in the vessel, a false signal suppression should be carried out with the agitators in motion. This ensures that the interfering reflections from the agitators are saved with the blades in different positions. Fig.
4 Mounting • • • • Mounting the sensor on the upstream or inlet side Installation in the centre of the flume and vertical to the liquid surface Distance to the overfall orifice or Venturi flume Min. distance to the max. height of damming for optimum accuracy: 250 mm (9.843 in)1) Detailed project planning data can be found at the channel manufacturers and in the technical literature. The measurement can be individually configured for the respective flume via a PC/notebook and PACTware/DTM.
4 Mounting ≥ 250 mm (9.84") Khafagi-Venturi flume 3 ... 4 x hmax 90° hmax 1 B 2 Fig. 16: Flow measurement with Khafagi-Venturi flume: hmax. = max.
5 Connecting to power supply 5 Safety instructions Connecting to power supply 5.1 Preparing the connection Always keep in mind the following safety instructions: • • Carry out electrical connection by trained, qualified personnel authorised by the plant operator If overvoltage surges are expected, overvoltage arresters should be installed Warning: Only connect or disconnect in de-energized state. Voltage supply The data for power supply are specified in chapter "Technical data".
5 Connecting to power supply In Ex systems, the grounding is carried out according to the installation regulations. Cable gland Metric threads In the case of instrument housings with metric thread, the cable gland is screwed in at the factory. It is sealed with plastic plugs as transport protection. You have to remove this plug before electrical connection. NPT thread In the case of instrument housings with self-sealing NPT threads, it is not possible to have the cable entry screwed in at the factory.
5 Connecting to power supply Fig. 17: Connection You can find further information on the max. wire cross-section under "Technical data - Electromechanical data". Connecting Connect the instrument as described in the following wiring plan. 5.3 Wiring plan Electronics and connection compartment (+)1 2(-) 2 57820-EN-191014 1 Fig.
5 Connecting to power supply 5.4 Switch-on phase After connection to the power supply, the device carries out a selftest: • • Internal check of the electronics Output signal is set to failure The current measured value is then output on the signal cable.
6 Access protection 6 6.1 Access protection Bluetooth radio interface Devices with a Bluetooth radio interface are protected against unwanted access from outside. This means that only authorized persons can receive measured and status values and change device settings via this interface. Bluetooth access code A Bluetooth access code is required to establish Bluetooth communication via the adjustment tool (smartphone/tablet/notebook).
6 Access protection Emergency device unlock The emergency device unlock code allows unlocking the devices in code case the device code is no longer known. It can't be changed. The emergency device unlock code can also be found on the supplied information sheet "Emergency codes". If this document is lost, the emergency device unlock code can be retrieved from your VEGA contact person after legitimation. The storage and transmission of the device codes is always encrypted (SHA 256 algorithm).
7 Set up with the integrated display and adjustment unit 7 Function Display and adjustment elements Set up with the integrated display and adjustment unit 7.1 Adjustment system The instrument is operated via the three keys of the integrated display and adjustment unit. The respective menu items are shown on the LC display. You can find the function of the individual keys in the following overview.
7 Set up with the integrated display and adjustment unit Time functions When the [+] and [-] keys are pressed quickly, the edited value, or the cursor, changes one value or position at a time. If the key is pressed longer than 1 s, the value or position changes continuously. Simultaneous pressing of the [+] and [-] keys causes a return to the measured value window. Approx. 60 minutes after the last pressing of a key, an automatic reset to measured value indication is triggered.
7 Set up with the integrated display and adjustment unit Main menu 7.
7 Set up with the integrated display and adjustment unit 7.4 Parameter adjustment 7.4.1 Main menu Medium This menu item enables you to adapt the sensor to the different measuring conditions of the media "Liquid" or "Bulk solid". This selection adapts the signal processing to the expected reflections. Application This menu item enables you to optimally adapt the sensor to the application, the place of use and the measuring conditions.
7 Set up with the integrated display and adjustment unit • –– Very agitated surface, foam generation –– Fast to slow filling and emptying –– Vessel is filled and emptied very often Properties, sensor: –– Higher measurement speed through less averaging –– Sporadic false echoes are suppressed Dosing vessel Vessel: –– All vessel sizes possible • Process/measurement conditions: –– Frequent and fast filling/emptying –– Tight installation situation –– Condensate and foam generation –– Buildup on the antenna •
7 Set up with the integrated display and adjustment unit –– Stable and reliable measured values through averaging –– High measurement accuracy –– Short reaction time of the sensor not required Plastic tank (measurement through the vessel top) Process/measurement conditions: –– Condensation on the plastic ceiling –– In outdoor facilities, water and snow on vessel top possible –– Measurement through the vessel top, if appropriate to the application • Properties, sensor: –– False signals outside the vessel ar
7 Set up with the integrated display and adjustment unit –– Sensor accepts all measured value changes within the measuring range immediately –– High sensitivity to interference, because virtually no averaging Application - bulk solid For "Bulk solid" the applications are based on the following characteristics: Silo (slender and high) Process/measurement conditions: –– Filling aperture too close to the sensor –– System noise in completely empty silo increased –– Interfering reflections due to weld seams on
7 Set up with the integrated display and adjustment unit • Properties, sensor: –– Sensor accepts all measured value changes within the measuring range immediately –– High sensitivity to interference, because virtually no averaging Unit distance In this menu item you select the unit for measured distance in mm, m, in or ft. Adjustment Since the radar sensor is a distance measuring instrument, it is the distance from the sensor to the product surface that is measured.
7 Set up with the integrated display and adjustment unit Displayed value 7.4.2 Extended functions In the menu item "Display value" you define the indication of the measured values on the display as filling height, distance, percent, lin. percent or scaled. Scaling In the menu item "Scaling" you define how the level value is shown on the display. This includes the scaling size, unit and format as well as the assignment to 0 % and 100 % of the measured value.
7 Set up with the integrated display and adjustment unit With activated protection of the parameter adjustment, the individual menu items can be selected and displayed, however the parameters can no longer be modified. Releasing the sensor adjustment is also possible in any menu item by entering the device code. Note: The factory set device code is "000000".
7 Set up with the integrated display and adjustment unit The measurement reliability represents the signal strength of the level echo above the detection threshold in dB. This makes it possible to assess the quality of the measurement. The measurement reliability should be at least 20 dB. Sensor information The menu item "Sensor information" provides the device name and serial number as well as the hardware and software version.
8 Setup with smartphone/tablet (Bluetooth) 8 System requirements Setup with smartphone/tablet (Bluetooth) 8.1 Preparations Make sure that your smartphone/tablet meets the following system requirements: • • • Operating system: iOS 8 or newer Operating system: Android 4.3 or newer Bluetooth 4.0 LE or newer Download the VEGA Tools app from the "Apple App Store", "Google Play Store" or "Baidu Store" to your smartphone or tablet. Connecting … 8.
8 Setup with smartphone/tablet (Bluetooth) The message "Waiting for authentication" is displayed on the smartphone/tablet. Connected After connection, the sensor adjustment menu is displayed on the respective adjustment instrument. If the Bluetooth connection is interrupted, e.g. due to a too large distance between the two devices, this is displayed on the operating device. The message disappears when the connection is restored.
9 Setup with PC/notebook (Bluetooth) 9 System requirements 9.1 Preparations Make sure that your PC/notebook meets the following system requirements: • • • Activate Bluetooth connection Setup with PC/notebook (Bluetooth) Operating system Windows 10 DTM Collection 12/2019 or newer Bluetooth 4.0 LE or newer Activate the Bluetooth connection via the VEGA project assistant. Note: Older systems do not always have an integrated Bluetooth LE. In these cases, a Bluetooth USB adapter is required.
9 Setup with PC/notebook (Bluetooth) Note: If an incorrect code is entered, the code can only be entered again after a delay time. This time gets longer after each incorrect entry. The message "Waiting for authentication" is displayed on the PC/ notebook. Connected After connection, the sensor DTM appears. Change device code Parameter adjustment of the device is only possible if the parameter protection is deactivated.
10 Setup with PC/notebook (VEGACONNECT) 10 Setup with PC/notebook (VEGACONNECT) Via interface adapter to the signal cable 10.1 Connect the PC 2 4 N OPE 3 USB TWIST LO CK 1 5 Fig. 27: Connecting the PC to the signal cable 1 2 3 4 5 Sensor HART resistance 250 Ω (optional depending on evaluation) Connection cable with 2 mm pins and terminals Processing system/PLC/Voltage supply Interface adapter VEGACONNECT Note: With power supply units with integrated HART resistance (internal resistance approx.
10 Setup with PC/notebook (VEGACONNECT) Via interface adapter to the VEGAMET controller 3 2 1 TWIST OP EN CK LO USB 4 Fig. 28: Connection of the PC to the VEGAMET controller 1 2 3 4 Prerequisites Sensor Connection cable with 2 mm pins Controller, e.g. VEGAMET 841 Interface adapter VEGACONNECT 10.
10 Setup with PC/notebook (VEGACONNECT) Fig. 29: Example of a DTM view Standard/Full version All device DTMs are available as a free-of-charge standard version and as a full version that must be purchased. 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.
11 Diagnostics and servicing 11 Diagnostics and servicing Maintenance 11.1 Maintenance If the device is used properly, no special maintenance is required in normal operation. Precaution measures against buildup In some applications, buildup on the antenna system can influence the measuring result. Depending on the sensor and application, take measures to avoid heavy soiling of the antenna system. If necessary, clean the antenna system in certain intervals.
11 Diagnostics and servicing Since we offer this service worldwide, the support is provided in English. The service itself is free of charge, the only costs involved are the normal call charges. 4 … 20 mA signal 11.3 Diagnosis, fault messages Connect a multimeter in the suitable measuring range according to the wiring plan.
11 Diagnostics and servicing Function check: The instrument is being worked on, the measured value is temporarily invalid (for example during simulation). 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: Due to external influences, the instrument function is limited.
11 Diagnostics and servicing Code Text message Cause Rectification F265 Program sequence of the measur- Device restarts automatically Measurement func- ing function disturbed tion disturbed DevSpec State in CMD 48 Byte 4, Bit 3 of Byte 0 … 5 Function check Code Cause Rectification DevSpec C700 A simulation is active Finish simulation Wait for the automatic end after 60 mins.
11 Diagnostics and servicing Code Cause Rectification DevSpec M507 Error during setup Carry out reset and repeat setup Bit 7 of Byte 14 … 24 Text message Error in the instrument settings Error when carrying out a reset State in CMD 48 False signal suppression faulty M508 Bit 8 of Byte 14 … 24 M509 Bit 9 of Byte 14 … 24 M510 Bit 10 of Byte 14 … 24 Data error in program memory Bluetooth controller Software update No communication with the sensor 11.
11 Diagnostics and servicing Cause Measured value jumps towards 100 % Due to the process, the amplitude of the Carry out a false signal suppression level echo sinks Level Fault description 0 time Rectification A false signal suppression was not carried out Amplitude or position of a false signal has changed (e.g. condensation, buildup); false signal suppression no longer matches actual conditions Determine the reason for the changed false signals, carry out false signal suppression, e.g.
11 Diagnostics and servicing Liquids: Measurement error during emptying Fault description Cause Rectification Measured value remains unchanged in the close range during emptying False signal larger than the level echo Check measuring point: Antenna should protrude out of the threaded mounting socket, possible false echoes through flange socket? Level Level echo too small 0 Remove contamination on the antenna In case of interferences due to installations in the close range: Change polarisation dire
11 Diagnostics and servicing Fault description Cause Measured value fluctuates around 10 … 20 % Various echoes from an uneven product Check parameter "Type of medium" and surface, e.g.
11 Diagnostics and servicing • • • • • Instrument Voltage supply Interface adapter VEGACONNECT PC with PACTware/DTM and Bluetooth USB adapter Current instrument software as file You can find the current instrument software as well as detailed information on the procedure in the download area of our homepage: www.vega.com. Caution: Instruments with approvals can be bound to certain software versions. Therefore make sure that the approval is still effective after a software update is carried out.
12 Dismount 12 Dismount 12.1 Dismounting steps Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel or pipeline, high temperatures, corrosive or toxic media etc. Take note of chapters "Mounting" and "Connecting to voltage supply" and carry out the listed steps in reverse order. 12.2 Disposal The device is made of recyclable materials. For this reason, it should be disposed of by a specialist recycling company.
13 Certificates and approvals 13 Certificates and approvals Objective and measures 13.1 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 protection. The environment management system is certified according to DIN EN ISO 14001.
14 Supplement 14 Supplement 14.1 Technical data Note for approved instruments The technical data in the respective safety instructions which are included in delivery are valid for approved instruments (e.g. with Ex approval). These data can differ from the data listed herein, for example regarding the process conditions or the voltage supply. All approval documents can be downloaded from our homepage.
14 Supplement 1 2 Fig. 31: Data of the input variable 1 2 Reference plane Measured variable, max. measuring range Max. measuring range4) 15 m (49.21 ft) Switch-on phase Run-up time with operating voltage UB < 10 s Output variable Output signal 4 … 20 mA/HART Signal resolution 0.3 µA Recommended measuring range5) Staring current (for run-up time) Range of the output signal Resolution, digital Fault signal, current output (adjustable) Max.
14 Supplement Deviation (according to DIN EN 60770-1) Process reference conditions according to DIN EN 61298-1 ƲƲ Temperature +18 … +30 °C (+64 … +86 °F) ƲƲ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig) ƲƲ Relative humidity 45 … 75 % Installation reference conditions ƲƲ Distance to installations > 200 mm (7.874 in) ƲƲ False reflections Biggest false signal, 20 dB smaller than the useful signal ƲƲ Reflector Flat plate reflector Deviation with liquids ≤ 2 mm (meas. distance > 0.
14 Supplement Characteristics and performance data Measuring frequency W-band (80 GHz technology) Measuring cycle time8) ≤ 250 ms Beam angle10) 8° Step response time9) ≤3s Emitted HF power (depending on the parameter setting)11) ƲƲ Average spectral transmission power density -3 dBm/MHz EIRP ƲƲ Max. power density at a distance of 1m < 3 µW/cm² ƲƲ Max.
14 Supplement Indication Measured value and menu display ƲƲ Graphic-capable LC display, with lighting ƲƲ Max.
14 Supplement 14.2 Dimensions VEGAPULS 31 SW 50 1½ - 14 NPT 25 mm (0.98") 50 mm (1.97") G1½ 156 mm (6.14") 122 mm (4.80") ø 77,5 mm (3.05") R 1½ ø 58 mm (2.28") 1 2 3 Fig.
14 Supplement 14.3 Industrial property rights VEGA product lines are global protected by industrial property rights. Further information see www.vega.com. VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte. Nähere Informationen unter www.vega.com. Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle. Pour plus d'informations, on pourra se référer au site www.vega.com.
57820-EN-191014 Notes VEGAPULS 31 • Two-wire 4 … 20 mA/HART 61
Notes 57820-EN-191014 62 VEGAPULS 31 • Two-wire 4 … 20 mA/HART
57820-EN-191014 Notes VEGAPULS 31 • Two-wire 4 … 20 mA/HART 63
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information available at the time of printing. Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2019 VEGA Grieshaber KG Am Hohenstein 113 77761 Schiltach Germany Phone +49 7836 50-0 Fax +49 7836 50-201 E-mail: info.de@vega.com www.vega.
