Vega VEGAPULS C 21 Operating Instructions Manual
Radar sensor for continuous level measurement
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- Page 1 Operating Instructions Radar sensor for continuous level measurement VEGAPULS C 21 SDI-12 Document ID: 58342...
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Page 2: Table Of Contents
Setup with PC/notebook (Bluetooth) ................... 22 Preparations ........................22 Connecting ........................22 Parameter adjustment ....................23 Menu overview ........................24 10 Diagnostics and servicing ....................26 10.1 Maintenance ........................26 10.2 Rectify faults ........................26 VEGAPULS C 21 • SDI-12... - Page 3 13.1 Technical data ........................ 35 13.2 Basics SDI-12 ........................ 39 13.3 Dimensions ........................42 13.4 Industrial property rights ....................43 13.5 License information for Open Source Software .............. 43 13.6 Trademark ........................43 Editing status: 2020-01-16 VEGAPULS C 21 • SDI-12...
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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
During work on and with the device, the required personal protective equipment must always be worn. Appropriate use VEGAPULS C 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. -
Page 6: Eu Conformity
A Class 2 power supply unit has to be used for the installation in the 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 C 21 • SDI-12... -
Page 7: Product Description
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 C 21 Radar antenna 2 Process fitting Electronics housing Mounting thread Connection cable Type label You can find the type label on the sensor housing as well as on the type label support on the connection cable. -
Page 8: Principle Of Operation
Enter serial number manually in the VEGA Tools app (available free of charge in the respective stores) Principle of operation The VEGAPULS C 21 SDI-12 can be operated on any data logger Power supply and signal processing with SDI-12 interface. The sensors are powered via the +12 V cable of the three-wire connection cable. -
Page 9: Adjustment
Devices with signal output SDI-12 can also be operated via the signal Adjustment via the signal cable line. This is done via commands from the SDI-12 data logger. Fig. 4: Connection of VEGAPULS C 21 SDI-12 to the data logge Sensor Data logger Packaging, transport and storage Packaging Your instrument was protected by packaging during transport. -
Page 10: Accessories
Mounting accessories The optional mounting accessories include bracket and mounting bracket and are used for stable mounting of the sensor at the measur- ing point. The parts are available in various versions and sizes. VEGAPULS C 21 • SDI-12... -
Page 11: Mounting
Mounting instructions Polarisation The emitted radar impulses of the radar sensor are electromagnetic waves. The polarisation is the direction of the electrical wave compo- nent. By turning the instrument in the mounting strap, the polarisation can be used to reduce the effects of false echoes. VEGAPULS C 21 • SDI-12... - Page 12 Fig. 7: Reference plane Reference plane Inflowing medium Do not mount the instruments in or above the feed stream. Make sure that you detect the product surface, not the inflowing product. Fig. 8: Mounting of the radar sensor with inflowing medium VEGAPULS C 21 • SDI-12...
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Page 13: Measurement Setups - Gauge
High or low water for mounting position • Measurement on water surface as flat as possible in calm area • Minimum distance to the max. water level The following examples serve as an overview for gauge measure- ment. River level Fig. 10: Gauge measurement river, sensor mounting on bridge pier VEGAPULS C 21 • SDI-12... -
Page 14: Measurement Setup - Flow
Min. distance to the max. height of damming for optimum accu- racy: 250 mm (9.843 in) Detailed project planning data can be found at the channel manufac- turers and in the technical literature. The following examples serve as an overview for flow measurement. At smaller distances the measuring accuracy is reduced, see Technical data. VEGAPULS C 21 • SDI-12... - Page 15 4 Mounting Rectangular overfall 3 ... 4 h 90° 90° Fig. 13: 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) Khafagi-Venturi flume 3 ... 4 x h 90° Fig. 14: 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 C 21 • SDI-12...
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Page 16: Connecting To Power Supply
Fig. 15: Wire assignment in permanently connected connection cable Wire colour Function Polarity Brown Voltage supply Blue Voltage supply White SDI data Shielding Switch-on phase After connection to the power supply, the device carries out a self- test. VEGAPULS C 21 • SDI-12... - Page 17 5 Connecting to power supply Note: No SDI-12 commands are answered during this self-test After the self-test, the standard SDI-12 communication is used. Transmitted values take settings into account that have already been carried out, e.g. default setting. VEGAPULS C 21 • SDI-12...
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Page 18: Access Protection
If this document is lost, the emergency device code can be retrieved from your personal contact person after legitimation. The storage and transmission of the device codes is always encrypt- ed (SHA 256 algorithm). VEGAPULS C 21 • SDI-12... -
Page 19: Storing The Codes In Myvega
"PINs and Codes". This greatly simplifies the use of additional adjust- ment tools, as all Bluetooth access and device codes are automati- cally synchronized when connected to the "myVEGA" account VEGAPULS C 21 • SDI-12... -
Page 20: Setup With Smartphone/Tablet (Bluetooth)
• Operating system: Android 4.3 or newer • Bluetooth 4.0 LE or newer Download the VEGA Tools app from the "Apple App Store", "Goog- le Play Store" or "Baidu Store" to your smartphone or tablet. Connecting Connecting Start the adjustment app and select the function "Setup". The smart- phone/tablet searches automatically for Bluetooth-capable instru- ments in the area. -
Page 21: Parameter Adjustment
Navigation section • Menu item display The selected menu item can be recognized by the colour change. Fig. 17: 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 C 21 • SDI-12... -
Page 22: Setup With Pc/Notebook (Bluetooth)
"PINs and Codes" in the device packaging. 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. VEGAPULS C 21 • SDI-12... -
Page 23: Parameter Adjustment
DTMs are compiled in a DTM Collec- tion. The DTMs can also be integrated into other frame applications according to FDT standard. Fig. 19: Example of a DTM view - Setup, sensor adjustment VEGAPULS C 21 • SDI-12... -
Page 24: Menu Overview
Menu language Displayed value Filling height Backlight Access protection Bluetooth access code Protection of the parameteri- Deactivated zation False signal sup- False signal suppression pression Sounded distance to the me- dium Reset Delivery status, basic settings VEGAPULS C 21 • SDI-12... - Page 25 Device name, serial number, hardware/software version, de- vice revision, factory calibration date 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 C 21 • SDI-12...
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Page 26: Diagnostics And Servicing
24 hour service hotline Should these measures not be successful, please call in urgent cases the VEGA service hotline under the phone no. +49 1805 858550. The hotline is also available outside normal working hours, seven days a week around the clock. -
Page 27: Status Messages According To Ne 107
This status message is inactive by default. Maintenance: 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). This status message is inactive by default. VEGAPULS C 21 • SDI-12... - Page 28 Finish simulation Simulation active Wait for the automatic end after 60 mins. Out of specification Code Cause Rectification Text message S600 Temperature of the electronics in the non- Check ambient temperature specified range Impermissible electron- Insulate electronics ics temperature VEGAPULS C 21 • SDI-12...
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Page 29: Treatment Of Measurement Errors
10.4 Treatment of measurement errors The tables below give typical examples of application-related meas- urement errors. The images in column "Error description" show the actual level as a dashed line and the output level as a solid line. VEGAPULS C 21 • SDI-12... - Page 30 Remove contamination on the antenna In case of interferences due to instal- lations in the close range, change polarisation direction Create a new false signal suppression Adapt max. adjustment VEGAPULS C 21 • SDI-12...
- Page 31 Carry out false signal suppression or in- radically towards 100 % on the antenna crease false signal suppression in the during emptying close range by editing With bulk solids, use radar sensor with purging air connection time VEGAPULS C 21 • SDI-12...
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Page 32: Software Update
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 • Ask the agency serving you to get the address for the return ship- ment. You can find the agency on our homepage. VEGAPULS C 21 • SDI-12... -
Page 33: Dismount
11.2 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 C 21 • SDI-12... -
Page 34: Certificates And Approvals
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 C 21 • SDI-12... -
Page 35: Supplement
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. Fig. 21: Data of the input variable Reference plane Measured variable, max. measuring range VEGAPULS C 21 • SDI-12... - Page 36 Deviation with liquids ≤ 2 mm (meas. distance > 0.25 m/0.8202 ft) Non-repeatability ≤ 2 mm Deviation with bulk solids The values depend to a great extent on the application. Binding specifications are thus not possible. Depending on application and medium With bulk solids Already included in the meas. deviation VEGAPULS C 21 • SDI-12...
- Page 37 Sinusoidal vibrations Class 4M8 acc. to IEC 60271-3-4 Impacts 50 g, 2.3 ms acc. to IEC 60271-3-6 (mechanical shock) Impact resistance IK07 acc. to IEC 62262 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 C 21 • SDI-12...
- Page 38 IP66/IP68 (3 bar) acc. to IEC 60529, Type 4P acc. to UL 50 Altitude above sea level 5000 m (16404 ft) Depending on the local conditions Corresponds with U = 12 V: 2 mA or 8 mA VEGAPULS C 21 • SDI-12...
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Page 39: Basics Sdi-12
Data Fig. 23: Bus architecture SDI-12 SD-12-Master Bus participant Basic Commands Command Response Description Break A data recorder starts a request by transmitting a break a<CR><LF> Acknowledge Active aiiccccccccmmmmmmvvvxx.. Send Identification xx<CR><LF> aAb! b<CR><LF> Change Adress VEGAPULS C 21 • SDI-12... - Page 40 Failure Code Description F013 No measured value available F017 Adjusted span too small F025 Error in the linearization table F036 No executable software Value 4 with aD0!, aR0!, aRC0!, value 2 with aD0! behind aV! VEGAPULS C 21 • SDI-12...
- Page 41 S600 Impermissible electronics temperature S601 Overfilling S603 Impermissible power supply Function check Code Description C700 Simulation active VVO-Status Code Description NO_ERROR EXECUTION_ERROR Value 2 with aXWPOM<value>!, aXWDU<value1>!, aXWTU<value>!, aXWSR<value1>!, value 1 with aX- WAPPL!, aXWAPEC<value>! VEGAPULS C 21 • SDI-12...
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Page 42: Dimensions
13.3 Dimensions VEGAPULS C 21 ø 76 mm (2.99") G1; 1NPT R 1½ 1½ - 14 NPT G1½ ø 68 mm (2.68") Fig. 24: Dimensions VEGAPULS C 21 Thread G1½ Thread 1½ NPT Thread R1½ VEGAPULS C 21 • SDI-12... -
Page 43: 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 44 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2020 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...