Vega VEGAPULS C 21 Operating Instructions Manual

Vega VEGAPULS C 21 Operating Instructions Manual

Radar sensor for continuous level measurement
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Operating Instructions
Radar sensor for continuous level
measurement
VEGAPULS C 21
SDI-12
Document ID: 58342

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Summary of Contents for Vega VEGAPULS C 21

  • Page 1 Operating Instructions Radar sensor for continuous level measurement VEGAPULS C 21 SDI-12 Document ID: 58342...
  • Page 2: Table Of Contents

    Setup with PC/notebook (Bluetooth) ................... 24 Preparations ........................24 Connecting ........................24 Parameter adjustment ....................25 Adjustment menu ........................27 Menu overview ....................... 27 Description of the applications ..................28 10 Diagnostics and servicing ....................33 10.1 Maintenance ........................33 VEGAPULS C 21 • SDI-12...
  • Page 3 13.9 Licensing information for open source software ............. 56 13.10 Trademark ........................56 Safety instructions for Ex areas Take note of the Ex specific safety instructions for Ex applications. These instructions are attached as documents to each instrument with Ex approval and are part of the operating instructions. Editing status: 2020-08-04 VEGAPULS C 21 • SDI-12...
  • 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: Modes For Worldwide Use

    National Electrical Code (ANSI/NFPA 70). Installations in Canada shall comply with the relevant requirements of the Canadian Electrical Code A Class 2 power supply unit has to be used for the installation in the USA and Canada. VEGAPULS C 21 • SDI-12...
  • Page 7: Product Description

    The respective scope of delivery results from the order specification. Scope of this operating This operating instructions manual applies to the following instrument instructions versions: • Hardware version from 1.0.0 • Software version from 1.2.0 G type threaded connections only VEGAPULS C 21 • SDI-12...
  • Page 8 • Documentation • Software Alternatively, you can find all via your smartphone: • Scan the QR-code on the type label of the device or • Enter serial number manually in the VEGA Tools app (available free of charge in the respective stores) VEGAPULS C 21 • SDI-12...
  • Page 9: Principle Of Operation

    Power supply and signal The VEGAPULS C 21 can be operated at any data logger with SDI-12 processing interface. The sensors are powered via the +12 V line of the three-wire connection cable.
  • Page 10: Packaging, Transport And Storage

    3 Product description 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. Its capacity to handle normal loads during transport is assured by a test based on ISO 4180.
  • Page 11 Threaded adapters enable simple adaptation of devices with stand- ard threaded fittings, e.g. to process-side hygiene connections. Mounting accessories The mounting accessories are used for stable mounting of the device at the measuring point. The parts are available in various versions and sizes. VEGAPULS C 21 • SDI-12...
  • Page 12: Mounting

    > 200 mm (7.87") Fig. 5: Mounting via a mounting bracket Mounting instructions Polarisation The emitted radar impulses of the radar sensor are electromagnetic waves. The polarisation is the direction of the electrical wave compo- VEGAPULS C 21 • SDI-12...
  • Page 13 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 medium surface, not the inflowing product. VEGAPULS C 21 • SDI-12...
  • Page 14: Measurement Setups - Gauge

    Mounting on solid bracket or mounting bracket • 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. VEGAPULS C 21 • SDI-12...
  • Page 15 River level Fig. 10: Gauge measurement river, sensor mounting on bridge pier Dam gauge Fig. 11: Gauge measurement dam, sensor mounting on bracket Deep well level Fig. 12: Gauge measurement deep well, sensor mounting on lid VEGAPULS C 21 • SDI-12...
  • Page 16: Measurement Setup - Flow

    The following examples serve as an overview for flow measurement. Rectangular overfall 3 ... 4 h 90° 90° Fig. 13: Flow measurement with rectangular flume: h = max. filling of the max. rectangular flume 1 Overfall orifice (side view) Upstream water Tailwater 4 Overfall orifice (view from tailwater) At smaller distances the measuring accuracy is reduced, see "Technical data". VEGAPULS C 21 • SDI-12...
  • Page 17 4 Mounting 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...
  • Page 18: Connecting To Power Supply

    Wiring plan Wire assignment, con- nection cable Fig. 15: Wire assignment in permanently connected connection cable Wire colour Function Polarity Brown Voltage supply Plus (+) Blue Voltage supply Minus (-) White SDI data Plus (+) Shielding VEGAPULS C 21 • SDI-12...
  • Page 19: Switch-On Phase

    After connection to the power supply, the device carries out a self- test. 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...
  • Page 20: 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 21: 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 22: Setup With Smartphone/Tablet (Bluetooth)

    Download the VEGA Tools app from the " Apple App Store", " Goog- le Play Store" or " Baidu Store" to your smartphone or tablet. Device activated Make sure that the VEGAPULS C 21 is activated, see chapter " Oper- ating modus, activate device". Connecting Connecting Start the adjustment app and select the function "...
  • Page 23: 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 measured values 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 24: Setup With Pc/Notebook (Bluetooth)

    After activating the integrated Bluetooth or the Bluetooth USB adapt- er, devices with Bluetooth are found and created in the project tree. Device activated Make sure that the VEGAPULS C 21 is activated, see chapter " Oper- ating modus, activate device". Connecting...
  • Page 25: Parameter Adjustment

    (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. VEGAPULS C 21 • SDI-12...
  • Page 26 8 Setup with PC/notebook (Bluetooth) Fig. 19: Example of a DTM view - Setup, sensor adjustment VEGAPULS C 21 • SDI-12...
  • Page 27: Adjustment Menu

    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 28: Description Of The Applications

    The adjust- ment possibilities depend on the selection made under " Medium", " Liquid" or " Bulk solid". The vessels as well as the measuring and process conditions are described in the following as an overview. VEGAPULS C 21 • SDI-12...
  • Page 29 – Condensation on the sensor • Further recommendations – False signal suppression via adjustment app or PACTware/DTM Overflow basin • Vessel – Large volume – Partly installed underground • Process/measurement conditions: – Partly strongly agitated surface VEGAPULS C 21 • SDI-12...
  • Page 30 • Process/measurement conditions: – Slow gauge change – Smooth to agitated water surface – Measurement often from a short distance with the demand for accurate measurement results – Ice and condensation on the antenna possible VEGAPULS C 21 • SDI-12...
  • Page 31 – Measured value jumps and varying pouring positions, e.g. due to truck filling – Fast reaction time – Large distance to the medium – Interfering reflections from fixtures or protective devices • Further recommendations – False signal suppression via adjustment app or PACTware/DTM VEGAPULS C 21 • SDI-12...
  • Page 32 9 Adjustment menu Demonstration • Applications that are not typical level measurements – Instrument demonstration – Object recognition/monitoring – Measured value verification with higher measuring accuracy with reflection without bulk solids, e.g. via a measuring plate VEGAPULS C 21 • SDI-12...
  • Page 33: 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 34: Status Messages According To Ne 107

    This status message is inactive by default. Maintenance required: 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 35 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...
  • Page 36: 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 37 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 38 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...
  • Page 39: 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 40: 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 41: 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 observ- ing the environmental instructions in chapters " Packaging, transport and Lagestoragerung", " Disposal" of these operating instructions. VEGAPULS C 21 • SDI-12...
  • Page 42: Supplement

    The measured variable is the distance between the antenna edge of the sensor and the medium surface. The antenna edge is also the reference plane for the measurement. G type threaded connections only G type threaded connections only VEGAPULS C 21 • SDI-12...
  • Page 43 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig) Installation reference conditions Ʋ Distance to installations > 200 mm (7.874 in) Ʋ Reflector Flat plate reflector Depending on application and medium With bulk solids Depending on the operating conditions VEGAPULS C 21 • SDI-12...
  • Page 44 +34 dBm/50 MHz EIRP density Ʋ Max. power density at a distance of < 3 µW/cm² Already included in the meas. deviation In case of deviations from reference conditions, the offset due to installation can be up to +/- 4 mm. This offset can be compensated by the adjustment. 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 45 PACTware/DTM Smartphone/Tablet Adjustment app Voltage supply Operating voltage U 8 … 30 V DC Power consumption max. 200 mW Power consumption max. U < 18 V Ʋ Low-Power-Mode 25 mW Depending on the local conditions VEGAPULS C 21 • SDI-12...
  • Page 46: Sdi-12 - Overview

    Sensor version, Series number aAb! b<CR><LF> Change Adress b<CR><LF> Adress Query atttn<CR><LF> Start Measurement aMC! atttn<CR><LF> Start Measurement and Request CRC aM1! ... aM9! atttn<CR><LF> Additional Measurements aMC1! ... aMC9! atttn<CR><LF> Additional Measurements and Request CRC VEGAPULS C 21 • SDI-12...
  • Page 47 Start measurement a<CR><LF> a: sensor address ttt: the time in seconds, until the sensor will have the measurement ready n: the number of measurement values the sensor will make and return a<CR><LF>: service request VEGAPULS C 21 • SDI-12...
  • Page 48: Extended Commands

    Read Power Operation Mode aXWPOM<value1>! a<value1><value2><CR><LF> Write Power Operation Mode aXRDU! a<value1><CR><LF> Read distance unit aXWDU<value1>! a<value1><value2><CR><LF> Write distance unit aXRTU! a<value1><CR><LF> Read temperature unit aXWTU<value1>! a<value1><CR><LF> Write temperature unit aXRSR! a<value1><value2><CR><LF> Read stage reference VEGAPULS C 21 • SDI-12...
  • Page 49 Read distance unit Command Response Description aXRDU! a<value1><CR><LF> a: sensor address <value1>: distance unit +0 = unit in [m], +1 = unit in [ft], +2 = unit in [mm], +3 = unit in [in] <CR><LF> VEGAPULS C 21 • SDI-12...
  • Page 50 <value1>: temperature unit +0 = unit in [°C], +1 = unit in [F], +2 = unit in [K] <value2>: VVO-Status +eee <CR><LF> Example: Command Response Description 0XWTU+0! 0+0+000<CR><LF> Valid data 0XWDU+4! 0+0+136<CR><LF> No valid data Current value is returned with a status 136 VEGAPULS C 21 • SDI-12...
  • Page 51 <value1>: result, +0 = success, +1 = failed, +2 = se- quence error <value2>: reason, +0 = without, +1 = wrong access code, +2 = <CR><LF> Example: Command Response Description aXRAPUR! 0+0+0<CR><LF> VEGAPULS C 21 • SDI-12...
  • Page 52 <value1>: 6 numbers (device unlock code) <CR><LF> Example: Command Response Description aXWAP- 0+000<CR><LF> PUL+123456! Write access protection parameterization lock Command Response Description aXWAPPL! a<value><CR><LF> a: sensor address <value>: VVO-Status +eee <CR><LF> VEGAPULS C 21 • SDI-12...
  • Page 53: Device-Status 14)

    Measurement function Maintenance Code Description M500 Error in the delivery status M501 Error in the non-active linearization table M504 Error on an device interface Value 4 with aD0!, aR0!, aRC0!, value 2 with aD0! behind aV! VEGAPULS C 21 • SDI-12...
  • Page 54: Vvo-Status 15)

    Description C700 Simulation active 13.6 VVO-Status Code Description NO_ERROR EXECUTION_ERROR ACTION_NOT_IMPLEMENTED INVALID_SELECTION INVALID_DATA_LENGTH VALUE_TOO_LARGE VALUE_TOO_SMALL INVALID_DATA TELEGRAM_TOO_LARGE DATA_NOT_AVAILABLE DEVICE_BUSY WRITE_PROTECTED READ_ONLY NOT_AUTHENTICATED Value 2 with aXWPOM<value>!, aXWDU<value1>!, aXWTU<value>!, aXWSR<value1>!, value 1 with aX- WAPPL!, aXWAPEC<value>! VEGAPULS C 21 • SDI-12...
  • Page 55: Dimensions

    ø 76 mm (2.99") ø 6 mm (0.24") SW 41 G1; 1NPT R 1½ 1½ - 14 NPT G1½ ø 68 mm (2.68") Fig. 23: Dimensions VEGAPULS C 21 Thread G1½ Thread 1½ NPT Thread R1½ VEGAPULS C 21 • SDI-12...
  • Page 56: 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 57 Notes VEGAPULS C 21 • SDI-12...
  • Page 58 Notes VEGAPULS C 21 • SDI-12...
  • Page 59 Notes VEGAPULS C 21 • SDI-12...
  • Page 60 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2020 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...

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