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.
During work on and with the device, the required personal protective equipment must always be worn. 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". 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.
USA and Canada. Safety instructions for Ex areas For Ex applications, only devices with corresponding Ex approval may be used. Observe the Ex-specific safety instructions. These are an integral part of the operating instructions and are enclosed with every device with Ex approval. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
This operating instructions manual applies to the following instrument instructions versions: • Hardware version from 1.0.0 • Software version from 1.0.0 Constituent parts Fig. 1: Components of VEGAPULS 21 Radar antenna 2 Process fitting Process seal Electronics housing Ventilation/pressure compensation VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Principle of operation Application area VEGAPULS 21 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.
PC/notebook with DTM/PACTware Packaging, transport and storage Packaging 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. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Mounting accessories The mounting accessories include e.g. bracket and mounting bracket and are used for stable mounting of the sensor at the measuring point. The parts are available in various versions and sizes. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Make sure that during installation or maintenance no moisture or dirt can get inside the instrument. To maintain the housing protection, make sure that the housing lid is closed during operation and locked, if necessary. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Fig. 6: 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. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Fig. 8: Reference plane Reference plane 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. Fig. 9: Mounting of the radar sensor with inflowing medium Threaded socket und With threaded connection, the antenna end should protrude at least socket piece 5 mm (0.2 in) out of the socket. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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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. 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.
If foams lead to measurement errors, you should use the biggest pos- sible radar antennas or sensors with guided radar. Measurement setup - Flow In general, the following must be observed while mounting the sensor: VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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PACTware/DTM. The following examples serve as an overview for flow measurement. Rectangular overfall 3 ... 4 h 90° 90° Fig. 15: Flow measurement with rectangular flume: h = max. filling of the max. rectangular flume 1 Overflow orifice (side view) Headwater Tailwater 4 Overfall orifice (view from tailwater) At smaller distances the measuring accuracy is reduced, see Technical data. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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4 Mounting Khafagi-Venturi flume 3 ... 4 x h 90° Fig. 16: Flow measurement with Khafagi-Venturi flume: h = max. filling of the max. flume; B = tightest constriction in the flume Position sensor 2 Venturi flume VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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. With an ambient temperature ≥ 50 °C (122 °F) the connection cable should be suitable for a temperature which is at least 20 °C (36 °F) higher. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
(3 mm blade width) to push the actuator lever away from the terminal opening (snaps into place). To unlock, press the actuator lever slightly from behind to close the terminals again. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
"Technical data - Electromechanical data". Connecting Connect the instrument as described in the following wiring plan. Wiring plan Electronics and connec- tion compartment (+)1 2(-) Fig. 18: Connection compartment VEGAPULS 21 1 Voltage supply, signal output VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
After connection to the power supply, the device carries out a self- test: • Internal check of the electronics • Output signal is set to failure The current measured value is then output on the signal cable. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
The device code is also stored in the adjustment tool. However, it must be re-entered for each unlocking. When using the VEGA Tools app, the stored device code is then suggested to the user for unlocking.
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"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).
Play Store" or "Baidu Store" to your smartphone or tablet. Connecting Connecting … Start the VEGA Tools app and select the function "Setup". The smart- phone/tablet searches automatically for Bluetooth-capable instru- ments in the area. The message "Searching …" is displayed.
Menu item display The selected menu item can be recognized by the colour change. Fig. 20: Example of an app view - Setup sensor adjustment Enter the requested parameters and confirm via the keyboard or the editing field. The settings are then active in the sensor. Close the app to terminate connection. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Older systems do not always have an integrated Bluetooth LE. In these cases, a Bluetooth USB adapter is required. Activate the Bluetooth USB adapter via the VEGA project assistant (see supplementary instructions "Bluetooth USB adapter"). After activating the integrated Bluetooth or the Bluetooth USB adapt- er, devices with Bluetooth are found and created in the project tree.
(DTM) according to FDT standard are required. The latest PACTware version as well as all available DTMs are compiled in a DTM Collec- tion. The DTMs can also be integrated into other frame applications according to FDT standard. Fig. 22: Example of a DTM view - Setup, sensor adjustment VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Note: With power supply units with integrated HART resistance (internal resistance approx. 250 Ω), an additional external resistance is not necessary. This applies, e.g. to the VEGA instruments VEGATRENN 149A, VEGAMET 381, VEGAMET 391. Common Ex separators are also usually equipped with a sufficient current limiting resistance. In such cases, the interface converter can be connected parallel to the 4 …...
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. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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 purposes. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
0 % correspond to 0 l Scaling unit 100 % correspond to 100 l Scaling format Display Menu language Displayed value Filling height Backlight Access protection Bluetooth access code Protection of the parameteri- Deactivated zation VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Sensor character- Sensor features from order text istics Simulation Measured value Simulation value Measured value Indication measured value mem- memory (DTM) ory from DTM VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
• Checking the output signal • Treatment of measurement errors A smartphone/tablet with the VEGA Tools app or a PC/notebook with the software PACTware and the suitable DTM offer you further com- prehensive diagnostic possibilities. In many cases, the causes can be determined in this way and the faults eliminated.
Status messages The status messages are divided into the following categories: • Failure • Function check • Out of specification • Maintenance requirement and explained by pictographs: Adjustable via VEGA Tools app or PACTware/DTM VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Check electronics version ware Exchanging the electronics Send instrument for repair F040 Hardware defect Exchanging the electronics Bit 4 of Byte 0 … 5 Error in the elec- Send instrument for repair tronics VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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DevSpec Text message State in CMD 48 S600 Temperature of the electronics in Check ambient temperature Byte 23, Bit 4 of the non-specified range Byte 14 … 24 Impermissible elec- Insulate electronics tronics temperature VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Error during setup Carry out reset and repeat setup Bit 7 of Byte 14 … 24 Error in the instru- Error when carrying out a reset ment settings False signal suppression faulty VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Determine the reason for the changed has changed (e.g. condensation, build- false signals, carry out false signal sup- time up); false signal suppression no longer pression, e.g. with condensation. matches actual conditions VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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The sensor goes into overfill protection flange socket? mode. The max. level (0 m distance) as Remove contamination on the antenna well as the status message "Overfill pro- tection" are output. time VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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(jumps to multiple echo) polarization direction Chose a more suitable installation po- sition Transverse reflection from an extraction Direct sensor to the opposite fun- time funnel, amplitude of the transverse re- nel wall, avoid crossing with the filling flection larger than the level echo stream VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Optimize installation position and sen- the vessel wall (deflection) sor orientation time 11.6 Software update The device software can be updated in the following ways: • HART signal • Bluetooth The following components are required: VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Attach the completed form and, if need be, also a safety data sheet outside on the packaging • Ask the agency serving you to get the address for the return ship- ment. You can find the agency on our homepage. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
12.2 Disposal The device is made of recyclable materials. For this reason, it should be disposed of by a specialist recycling company. Observe the ap- plicable national regulations. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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" VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
Input variable Measured variable The measured variable is the distance between the antenna edge of the sensor and the product surface. The antenna edge is also the reference plane for the measurement. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Electronics temperature Fulfilled HART specification Further information on Manufacturer ID, See website of HART Communication Foundation Device ID, Device Revision Depending on application and medium With bulk solids Default values can be assigned individually. VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Ʋ According to NAMUR NE 21 < 80 µA Ʋ According to EN 61326-1 None Ʋ According to IACS E10 (shipbuilding)/ < 250 µA IEC 60945 Already included in the meas. deviation VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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0.2 mm² (AWG 24) … 2.5 mm² (AWG 14) Ʋ Stranded wire with end sleeve 0.2 mm² (AWG 24) … 1.5 mm² (AWG 16) With operating voltage U ≥ 24 V DC Time span after a sudden distance change from 1 m to 5 m until the output signal reaches 90 % of the final value for the first time (IEC 61298-2). Valid with operating voltage U ≥ 24 V DC. Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less. EIRP: Equivalent Isotropic Radiated Power VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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Electronics potential free up to 500 V AC Protection rating IP66/IP67 acc. to IEC 60529, Type 4X acc. to UL 50 Altitude above sea level 5000 m (16404 ft) Protection class Pollution degree Depending on the local conditions VEGAPULS 21 • Two-wire 4 … 20 mA/HART...
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.
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