Quick setup guide Pressure transmitter with metallic measuring cell VEGABAR 81 Slave sensor for electronic differential pressure Document ID: 46331
Contents Contents 1 For your safety 1.1 Authorised personnel ....................................................................................................... 3 1.2 Appropriate use ................................................................................................................ 3 1.3 Warning about incorrect use............................................................................................. 3 1.4 General safety instructions .................................................
1 For your safety 1 1.1 For your safety Authorised personnel All operations described in this operating instructions manual must be carried out only by trained specialist personnel authorised by the plant operator. During work on and with the device the required personal protective equipment must always be worn. 1.2 Appropriate use VEGABAR 81 is a slave sensor for electronic differential pressure measurement. You can find detailed information on the application range in chapter "Product description".
1 For your safety 1.6 Measuring range - permissible process pressure The permissible process pressure is specified on the type label with "Process pressure", see chapter "Configuration". For safety reasons, this range may not be exceeded. This applies even if a measuring cell with a measuring range (order-related) higher than the permissible pressure range of the process fitting is installed. 1.7 Environmental instructions Protection of the environment is one of our most important duties.
2 Product description 2 Type plate Product description 2.1 Configuration The nameplate contains the most important data for identification and use of the instrument: 1 2 16 15 3 4 5 6 7 8 9 14 10 11 13 12 Fig. 1: Layout of the type label (example) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Serial number The type label contains the serial number of the instrument.
3 Mounting 3 Protection against moisture Mounting 3.
3 Mounting 3.3 Combination Master - Slave In principle, any sensor combination within the VEGABAR 80 series is allowed. The following requirements must be fulfilled: • • 46331-EN-131125 • • Configuration, Master sensor suitable for electronic differential pressure Pressure type is identical for both sensors, i.e.
4 Connecting to power supply 4 Connection technology 4.1 Connecting to power supply Connecting The voltage supply and signal output are connected via the springloaded terminals in the housing. Connection to the display and adjustment module or to the interface adapter is carried out via contact pins in the housing. Information: The terminal block is pluggable and can be removed from the electronics. To do this, lift the terminal block with a small screwdriver and pull it out.
4 Connecting to power supply 7. Check the hold of the wires in the terminals by lightly pulling on them 8. Connect the screen to the internal ground terminal, connect the outer ground terminal to potential equalisation 9. Tighten the compression nut of the cable entry gland. The seal ring must completely encircle the cable 10. Reinsert the display and adjustment module, if one was installed 11. Screw the housing cover back on The electrical connection is finished. 4.
4 Connecting to power supply The connection between VEGABAR 81 and the VEGABAR 81 slave sensor is made with a standard cable according to the chart: VEGABAR 81 Slave sensor Terminal 5 Terminal 5 Terminal 6 Terminal 6 Terminal 7 Terminal 7 Terminal 8 Terminal 8 46331-EN-131125 10 VEGABAR 81 • Slave sensor for electronic differential pressure
5 Set up with the display and adjustment module 5 5.1 Set up with the display and adjustment module Parameter adjustment - Quick setup To quickly and easily adapt the sensor to the application, select the menu item "Quick setup" in the start graphic on the display and adjustment module. Carry out the following steps in the sequence specified below. The presettings apply to all applications. You can find "Extended adjustment" in the next sub-chapter. Presettings 1.
5 Set up with the display and adjustment module Enter the percentage value and the corresponding pressure value for the max. level. The quick setup for level measurement is finished. Quick setup - Flow measurement 4. Position correction In this menu item you compensate the influence of the installation position of the instrument (offset) on the measured value. 5. Min. adjustment In this menu item you carry out the min. adjustment for flow.
5 Set up with the display and adjustment module The quick setup for differential pressure measurement is finished. Quick setup - Density measurement 4. Unit, static pressure In this menu item, you determine the unit of the static, i.e. superimposed pressure. 5. Position correction In this menu item you compensate the influence of the installation position of the instrument (offset) on the measured value. 6. Distance In this menu item, you enter the installation distance between master and slave sensor. 7.
5 Set up with the display and adjustment module The quick setup for interface measurement is finished. 5.2 Parameter adjustment - Extended adjustment For technically demanding measuring points, you can carry out extended settings in "Extended adjustment". Main menu The main menu is divided into five sections with the following functions: Setup: Settings, e.g., for measurement loop name, application, units, position correction, adjustment, signal output Display: Settings, e.g.
5 Set up with the display and adjustment module Setup Menu item Measurement loop name Application Slave for electronic differential pressure Application Units Unit of measurement Static pressure Position correction Adjustment Distance (with density and interface) Min. adjustment Max. adjustment Damping Integration time Linearization Linearization type Current output Current output - Mode Current output - Min./Max.
5 Set up with the display and adjustment module Menu item Current output Current output - Size Current output - adjustment HART mode Effective pressure transmitter Unit Adjustment 46331-EN-131125 16 VEGABAR 81 • Slave sensor for electronic differential pressure
6 Supplement 6 6.1 Supplement Technical data Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar Options of the cable entry Ʋ Cable diameter (options) 5 … 9 mm (0.20 … 0.35 in) 6 … 12 mm (0.24 … 0.47 in) 10 … 14 mm (0.39 … 0.55 in) Ʋ Cable entry ½ NPT Ʋ Closing cap M20 x 1.5; ½ NPT Ʋ Blind plug Plug options Ʋ Signal circuit Ʋ Indication circuit M20 x 1.
Notes 46331-EN-131125 18 VEGABAR 81 • Slave sensor for electronic differential pressure
46331-EN-131125 Notes VEGABAR 81 • Slave sensor for electronic differential pressure 19
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 2013 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.
