Vega VEGABAR 74 4 … 20 mA_HART User Manual

Operating InstructionsVEGABAR 744 … 20 mA/HARTProcess pressure/Hydrostaticp

3.4 Packaging, transport and storageYour instrument was protected by packaging during transport.Its capacity to handle normal loads during transport i

4 Mounting4.1 General instructionsMake sure thatthe wetted parts of VEGABAR 74, especiallythe seal and process fitting, are suitable for the existingpr

4.2 Mounting stepsSeal the thread with teflon, hemp or a similar resistant sealmaterial on the process fitting thread 1½ NPT.à Screw VEGABAR 74 into the

5 Connecting to power supply5.1 Preparing theconnectionAlways keep in mind the following safety instructions:l Connect only in the complete absence of

industrial areas, screened cable should be used. For HARTmultidrop operation we recommend as standard practice theuse of screened cable.12Fig. 3: Conn

5.2 Connection procedureProceed as follows:1 Wire the connection cable up to the connection compart-ment. The bending radius must be at least 25 mm.2)

5.3 Wiring plan51234Fig. 4: Wire assignment, connection cable1 brown (+): to power supply or to the processing system2 blue (-): to power supply or to

+ – + – VEGADIS 12 TRANSMITTER + 4...20mA + NOT USED8 7 6 5 12 11 10 1 2 3 - OPERATE ti ZERO SPAN TRANSMITTER 3 4 5 1 2 Fig. 6: Terminal assignment,

6 Set up6.1 Setup steps without VEGADIS 12After mounting and electrical connection, VEGABAR 74 isready for operation.à Switch on voltageThe electronic

4 Empty the vessel or reduce process pressure5 Set a current of 4 mA with the [+] and [-] keys6 Meas. range end: Set rotary switch to "span"

Contents1 About this document1.1 Function . . .. . . . . . . . . . . . . . . . . . . . . . . . . .51.2 Target group . . . . . . . . . . . . . . . . .

8 Set rotary switch to "OPERATE"9 Close housing coverThe adjustment data are effective, the output current 4 … 20 mAcorresponds to the actual

7 Setup with PACTware™7.1 Connect the PC with VEGACONNECT 3~=2314Power supplyVEGACONNECT 3PACTware /TMFig. 8: Connecting the PC to the signal cable

7.2 Connect the PC with VEGACONNECT 42431OPENTWISTUSBLOCKFig. 9: Connecting the PC via HART to the signal cable1 VEGABAR 742 HART resistance 250 Ohm (

7.3 Parameter adjustment with PACTware™Further setup steps are described in the operating instructionsmanual "DTM Collection/PACTware™" atta

8 Maintenance and fault rectification8.1 MaintenanceWhen used asdirected in normal operation, VEGABAR 74 iscompletely maintenance free.8.2 Fault cleara

à Check the pressure compensation in the housing andclean the filter element, if necessary? 4 … 20 mA signal missingl Wrong connection to power supplyà

9 Dismounting9.1 Dismounting stepsWarning:Before dismounting, be aware of dangerous process con-ditions such as e.g. pressure in the vessel, high temp

10 Supplement10.1 Technical dataGeneral dataManufacturer VEGA Grieshaber KG, D-77761 SchiltachType name VEGABAR 74Parameter, pressure Gauge pressure,

Range -50 … +150 °C (-58 … +302 °F)Resolution 1 °C (1.8 °F)Accuracy- in the range of 0 … +100°C(+32 … +212 °F)±3 K- in the range of -50 … 0 °C(-58 … +

Nominal range Overload, max. pres-sure6)Overload, min. pressure-0.2 … 0.2 bar/-20 … 20 kPa 30 bar/3000 kPa -0.8 bar/-80 kPa-0.5 … 0.5 bar/-50 … 50 kPa

8 Maintenance and fault rectification8.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .258.2 Fault clearance . . . . . . . . . . . . .

Deviation with absolute pressure measuring range 0.1 bar- Turn down 1:1 up to 5:1 <0.25 % x TD- Turn down up to 10:1 <0.05 % x TDInfluence of the

- FT: Temperature coefficient (influ-ence of medium or ambient tem-perature)- FKl: DeviationAmbient conditionsAmbient, storage and transport temperature-

- Min. bending radius at 25 °C/77 °F 25 mm (0.985 in)- Diameter approx. 8 mm (0.315 in)- Colour - standard PE Black- Colour - standard PUR Blue- Colou

Ω450712,525018 24 29 36333421VFig. 11: Voltage diagram VEGABAR 74 with VEGADIS 121 HART load2 Voltage limit Ex instrument3 Voltage limit non-Ex instru

10.2 DimensionsVEGABAR 74 - threaded fittingGMGIGRGV GG/GNGGG½ASW 27mm(1 1/16")G½ASW 27mm(1 1/16")G1½ASW 46 mm(1 13/16")G1½ANPT1½SW 46 m

VEGABAR 74 - hygienic fitting 1CCø 41,6 mm(1 41/64")SW 46 mm(1 13/16")SW 46 mm(1 13/16")SW 46 mm(1 13/16")TA RA/RBTBø 84 mm (3 5/16

VEGABAR 74 - hygienic fitting 2ø 41,6 mm(1 41/64")217 mm (8 35/64")KAAAø 66 mm (2 19/32")ø 105 mm (4 9/64")ABø 70 mm (2 3/4")ø

VEGABAR 74 - flange connectiond4kDfbEA, FB, FE, FQ, FH, FI TV, TSd5RL d2197,5 mm (7 25/32")ø 41,6 mm (1 41/64")3 5/8" 7 1/2" 1/8&q

VEGABAR 74 - threaded fitting for paper industry64,5mm (2 35/64")BA/BB215,5mm (8 31/64")SW46M44x1,25174mm (6 27/32")ø 41,6mm (1 41/64&qu

VEGABAR 74 - extension fitting for paper industryFT/EV175 mm (6 57/64")154 mm (6 1/16")L134 mm (5 9/32")ø 41,6 mm (1 41/64")ø 41,6

1 About this document1.1 FunctionThis operating instructionsmanual provides all the informationyou need for mounting, connection and setup as well asi

10.3 Industrial property rightsVEGA product lines are global protected by industrial property rights.Further information see http://www.vega.com.Only

SupplementVEGABAR 74 - 4 … 20 mA/HART 4128432-EN-070718

Supplement42 VEGABAR 74 - 4 … 20 mA/HART28432-EN-070718

SupplementVEGABAR 74 - 4 … 20 mA/HART 4328432-EN-070718

VEGA Grieshaber KGAm Hohenstein 11377761 SchiltachGermanyPhone +49 7836 50-0Fax +49 7836 50-201E-mail: [email protected] 9001All statem

2 For your safety2.1 Authorised personnelAll operations described in this operating instructions manualmust be carried out only by trained specialist

During the entire duration of use, the user is obliged todetermine the compliance of the required occupational safetymeasures with the current valid r

You can view all software histories on our website www.vega.com. Make use of this advantage and get registered for updateinformation via e-mail.2.8 Sa

3 Product description3.1 ConfigurationThe scopeof delivery encompasses:l VEGABAR 74 pressure transmitterl Documentation- thisoperating instructions man

3.2 Principle of operationVEGABAR 74 is a pressure transmitter for use in the paper,food processing and pharmaceutical industry. Thanks to thehigh pro