Operating Instructions Radar sensor for continuous level measurement of liquids VEGAPULS 21 Two-wire 4 … 20 mA/HART Document ID: 58351
Contents Contents About this document................................................................................................................ 4 1.1 Function............................................................................................................................ 4 1.2 Target group...................................................................................................................... 4 1.3 Symbols used...................................................................
Contents 11 Diagnostics and servicing..................................................................................................... 33 11.1 Maintenance................................................................................................................... 33 11.2 Rectify faults.................................................................................................................... 33 11.3 Diagnosis, fault messages.................................................................
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 21 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 Type label 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.com D-77761 SCHILTACH, Made in Germany 5 123456 4 Fig.
3 Product description 2 1 3 Fig. 3: Wireless connection to standard operating devices with integrated Bluetooth LE 1 2 3 Sensor Smartphone/Tablet PC/Notebook Adjustment via the signal Devices with signal output 4 … 20 mA/HART can also be operated cable via a signal cable. This is done via an interface converter and a PC/ notebook using DTM/PACTware. 2 4 N OPE 3 USB TWIST LO CK 1 5 Fig.
3 Product description The packaging consists of environment-friendly, recyclable cardboard. For special versions, PE foam or PE foil is also used. Dispose of the packaging material via specialised recycling companies. Transport Transport must be carried out in due consideration of the notes on the transport packaging. Nonobservance of these instructions can cause damage to the device. Transport inspection The delivery must be checked for completeness and possible transit damage immediately at receipt.
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 Fig. 7: Mounting of the radar sensor on vessels with conical bottom Reference plane The lower side of the radar antenna is the beginning of the measuring range. It is at the same time the reference plane for the min./max. adjustment, see following diagram: 1 Fig. 8: Reference plane 1 58351-EN-191014 Inflowing medium Reference plane Do not mount the instruments in or above the filling stream. Make sure that you detect the product surface, not the inflowing product. Fig.
ca. 5 mm 4 Mounting Fig. 10: Thread mounting If the reflective properties of the medium are good, you can mount VEGAPULS 21 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 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. The free opening for the cable gland is therefore covered with a red dust protection cap as transport protection. Note: Prior to setup you have to replace this protective cap with an approved NPT cable gland or close the opening with a suitable blind plug.
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(-) 1 1 20 Voltage supply, signal output VEGAPULS 21 • Two-wire 4 … 20 mA/HART 58351-EN-191014 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 58351-EN-191014 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 58351-EN-191014 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.
7 Setup with smartphone/tablet (Bluetooth) 7 System requirements Setup with smartphone/tablet (Bluetooth) 7.1 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 … 7.
7 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.
8 Setup with PC/notebook (Bluetooth) 8 System requirements 8.1 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.
8 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.
9 Setup with PC/notebook (VEGACONNECT) 9 Via interface adapter to the signal cable Setup with PC/notebook (VEGACONNECT) 9.1 Connect the PC 2 4 N OPE 3 USB TWIST LO CK 1 5 Fig. 23: 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.
9 Setup with PC/notebook (VEGACONNECT) Via interface adapter to the VEGAMET controller 3 2 1 TWIST OP EN CK LO USB 4 Fig. 24: 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 9.
9 Setup with PC/notebook (VEGACONNECT) Fig. 25: 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.
10 Menu overview Main menu 10 Menu overview Menu item Selection Basic settings Measurement loop name Alphanumeric characters Sensor Application liquid Storage tank, agitator tank, dos- Storage tank ing tank, pumping station/pump shaft, rain overflow basin, tank/ collection basin, plastic tank (measurement through tank top), mobile plastic tank (IBC), level measurement in waters, flow measurement flume/overflow, demonstration Silo (slender and Application bulk solid Silo (slim and high), bunker (la
10 Menu overview Menu item Selection Basic settings False signal suppression False signal suppression 0m Sounded distance to the medium 0m HART variables First HART value (PV) Lin.
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 1 2 3 4 Fig. 26: Pictographs of the status messages 1 2 3 4 Failure - red Out of specification - yellow Function check - orange Maintenance - blue Failure: Due to a malfunction in the instrument, a fault message is output. This status message is always active. It cannot be deactivated by the user. 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.
11 Diagnostics and servicing Code Cause Rectification DevSpec F080 General software error Disconnect operating voltage briefly Bit 5 of Byte 0 … 5 F105 Determine measured value The instrument is still in the start phase, the measured value could not yet be determined Wait for the end of the switch-on phase Bit 6 of Byte 0 … 5 F113 EMC interference Remove EMC influences Bit 12 of Byte 0 … 5 Temperature of the electronics in Impermissible elec- the non-specified range tronics temperature Che
11 Diagnostics and servicing Code Cause Rectification DevSpec S601 Danger of vessel overfilling Make sure that there is no further filling Byte 23, Bit 5 of Byte 14 … 24 S603 Terminal voltage too small Check terminal voltage, increase operating voltage Byte 23, Bit 6 of Byte 14 … 24 Code Cause Rectification DevSpec M500 The data could not be restored during the reset to delivery status Repeat reset M501 Hardware error EEPROM Exchanging the electronics Bit 1 of Byte 14 … 24 M502 Hardw
11 Diagnostics and servicing 11.5 Treatment of measurement errors The tables below give typical examples of application-related measurement errors. Level The images in column "Error description" show the actual level as a dashed line and the output level as a solid line. 1 2 0 1 2 time Real level Level displayed by the sensor Note: If the output level is constant, the cause could also be the fault setting of the current output to "Hold value".
11 Diagnostics and servicing Liquids: Measurement error during filling Cause Rectification Measured value remains unchanged during filling False signals in the close range too big or level echo too small Eliminate false signals in the close range Level Fault description Strong foam or spout generation Max.
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. a material cone adapt, if necessary Optimize installation position and sensor orientation Level 0 time Reflections from the product surface via Select a more suitable installation position, optimize sensor orientation, 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 58351-EN-191014 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. 27: 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 Bluetooth interface Bluetooth standard Max. participants Effective range12) Voltage supply Operating voltage UB Reverse voltage protection Permissible residual ripple ƲƲ for 12 V < UB < 18 V ƲƲ for 18 V < UB < 35 V Load resistor ƲƲ Calculation ƲƲ Example - with UB= 24 V DC Electrical protective measures Potential separation Protection rating Altitude above sea level Protection class 58351-EN-191014 Pollution degree 12) Bluetooth 5.0 (downward compatible to Bluetooth 4.0 LE) 1 max.
14 Supplement 14.2 Dimensions VEGAPULS 21 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.
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.
