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Summary of Contents for Vega VEGABAR 18
- Page 1 Operating Instructions Pressure sensor with ceramic measuring cell VEGABAR 18 Two-wire 4 … 20 mA Document ID: 55575...
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Page 2: Table Of Contents
8 Certificates and approvals ....................22 EU conformity ......................... 22 NAMUR recommendations .................... 22 Environment management system ................. 22 Supplement ..........................23 Technical data ........................ 23 Dimensions ........................27 Industrial property rights ....................29 Trademark ........................29 VEGABAR 18 • Two-wire 4 … 20 mA... - Page 3 Contents 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: 2020-03-25 VEGABAR 18 • Two-wire 4 … 20 mA...
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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 The VEGABAR 18 is a pressure transmitter for process pressure 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 2 For your safety Installations in the US shall comply with the relevant requirements of the National Electrical Code (ANSI/NFPA 70). Installations in Canada shall comply with the relevant requirements of the Canadian Electrical Code. VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 7: Product Description
• Hardware version from 1.0.0 • Software version from 1.0.0 Constituent parts Fig. 1: Components of VEGABAR 18 1 Process fitting Electronics housing Plug connector Type label The type label contains the most important data for identification and use of the instrument. VEGABAR 18 • Two-wire 4 … 20 mA... -
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 Application area VEGABAR 18 is suitable for applications in virtually all industries. It is used for the measurement of the following pressure types. • Gauge pressure Measured products Measured products are gases, vapours and liquids. - Page 9 Recessed installation The recessed installation is particularly suitable for applications with gases, vapours and clear liquids. The measuring cell seal is posi- tioned laterally as well as in addition in front. VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 10: Adjustment
Not exposed to corrosive media • Protected against solar radiation • Avoiding mechanical shock and vibration • Storage and transport Storage and transport temperature see chapter "Supplement - temperature Technical data - Ambient conditions" • Relative humidity 20 … 85 % VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 11: Accessories
Welded sockets are used to connect the sensors to the process. adapters Threaded adapters enable simple adaptation of sensors with stand- ard threaded fittings, e.g. to process-side hygiene connections. Mounting accessories The suitable mounting accessories for VEGABAR 18 includes si- phons, blocking valves and measuring instrument holders. VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 12: Mounting
Use a suitable connection cable (see chapter "Connecting to power supply") • Tighten the cable gland or plug connector • Lead the connection cable downward in front of the cable entry or plug connector VEGABAR 18 • Two-wire 4 … 20 mA... - Page 13 This applies mainly to outdoor installations, in areas where high humidity is expected (e.g. through cleaning processes) and on cooled or heated vessels. Make sure that the degree of contamination specified in chapter "Technical data" meets the existing ambient conditions. Ventilation and pressure Ventilation and pressure compensation for VEGABAR 18 are provided compensation by an air-permeable, moisture-blocking filter element. Fig. 6: Position of the filter element Filter element For effective ventilation, the filter element must always be free of buildup.
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Page 14: Process Pressure Measurement
Mount the instrument above the measuring point Possible condensation can then drain off into the process line. Fig. 8: Measurement setup for process pressure measurement of gases in pipelines VEGABAR 18 Blocking valve Pipeline In vapours Keep the following in mind when setting up the measuring system: • Connect via a siphon VEGABAR 18 • Two-wire 4 … 20 mA... - Page 15 Keep the following in mind when setting up the measuring system: • Mount the instrument below the measuring point The effective pressure line is always filled with liquid and gas bubbles can bubble up to the process line. Fig. 10: Measurement setup for process pressure measurement of liquids in pipelines VEGABAR 18 Blocking valve Pipeline VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 16: Connecting To Power Supply
ISO 4400 1. Loosen the screw on the rear of the plug connector 2. Remove the plug connector and seal from VEGABAR 18 3. Remove the plug insert from the plug housing VEGABAR 18 • Two-wire 4 … 20 mA... - Page 17 Plug insert Plug seal 7. Snap the plug insert into the plug housing and insert the sensor seal 8. Plug the plug insert with seal to VEGABAR 18 and tighten the screw The electrical connection is finished. VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 18: Wiring Plan
Electrically connected with metal housing Switch-on phase After switching on, the device first carries out a self-check: • Internal check of the electronics • The output signal jumps to the set fault current The current measured value is then output on the signal cable. VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 19: 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 20: Diagnosis, Fault Messages
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. VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 21: Dismount
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. VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 22: 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. VEGABAR 18 • Two-wire 4 … 20 mA... -
Page 23: Supplement
Ʋ Thread G½ (EN 837), manometer 50 Nm (36.88 lbf ft) connection Ʋ Thread G½, inside G¼ (ISO 228-1) 50 Nm (36.88 lbf ft) Input variable The specifications are only an overview and refer to the measuring cell. Limitations due to the material and version of the process fitting as well as the selected pressure type are possible. The specifications on the nameplate apply. Data on overload capability apply for reference temperature. VEGABAR 18 • Two-wire 4 … 20 mA... - Page 24 5 µA Fault signal output current 3.6 mA Load See load resistance under Power supply Transferred measured value Pressure Dynamic behaviour output Dynamic characteristics - Current output Depending on medium and temperature VEGABAR 18 • Two-wire 4 … 20 mA...
- Page 25 Relating to the nominal measuring range, incl. non-linearity, hysteresis and non-reproducibility. In the compensated temperature range of -40 … +100 °C (-40 … +212 °F), reference temperature 20 °C (68 °F). Relating to the nominal measuring range. VEGABAR 18 • Two-wire 4 … 20 mA...
- Page 26 )/0.022 A Ʋ Example - for U = 24 V DC (24 V - 12 V)/0.022 A = 545 Ω Electrical protective measures Potential separation Electronics potential free up to 500 V AC Protection rating MWP: Maximum Working Pressure Achieving a UL-approved degree of protection requires the use of UL-certified plugs or connection sets. This is fulfilled when using the supplied plug according to ISO 4400. VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 27: Dimensions
Altitude above sea level 5000 m (16404 ft) Protection class Pollution degree Dimensions Housing and connections 36 mm (1.38") ø 32 mm ø 32 mm (1.26") (1.26") Fig. 16: VEGABAR 18 housing M12 x 1 plug connector Plug connector according to ISO 4400 VEGABAR 18 • Two-wire 4 … 20 mA... - Page 28 ø 3 mm ( 0.45 ") ø 17,5 mm ( 0.12 ") ø 6 mm ( 0.69 ") ( 0.24 ") Fig. 17: VEGABAR 18, threaded fitting not front-flush DU Thread G½ (EN 837), manometer connection DN Thread G½, inside G¼ (ISO 228-1) LF Thread ½ NPT, inside ¼ NPT (ASME B1.20.1) VEGABAR 18 • Two-wire 4 … 20 mA...
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Page 29: 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 30 Notes VEGABAR 18 • Two-wire 4 … 20 mA...
- Page 31 Notes VEGABAR 18 • Two-wire 4 … 20 mA...
- Page 32 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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