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Operating Instructions

Pressure sensor with ceramic measuring
cell

VEGABAR 18

Two-wire 4 … 20 mA

Document ID: 55575

Содержание VEGABAR 18

Страница 1: ...Operating Instructions Pressure sensor with ceramic measuring cell VEGABAR 18 Two wire 4 20 mA Document ID 55575...

Страница 2: ...3 5 Accessories 11 4 Mounting 12 4 1 General instructions 12 4 2 Process pressure measurement 14 5 Connecting to power supply 16 5 1 Preparing the connection 16 5 2 Connection procedure 16 5 3 Wiring...

Страница 3: ...7 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...

Страница 4: ...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 Note This sy...

Страница 5: ...s This is a state of the art instrument complying with all prevailing regulations and directives The instrument must only be operated in a technically flawless and reliable condition The operator is r...

Страница 6: ...e 4 20 mA 55575 EN 200327 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 requir...

Страница 7: ...described in this operating instructions manual The respective scope of delivery results from the order specification This operating instructions manual applies to the following instrument versions H...

Страница 8: ...umber of your instrument There you can find the following information about the instrument Order data Documentation Software Alternatively you can find all via your smartphone Scan the QR code on the...

Страница 9: ...measured value via the output signal 14 m 1 2 3 Fig 4 Configuration of the Mini CERTEC measuring cell 1 Process diaphragm 2 Glass joint 3 Base element Relative pressure the measuring cell is open to t...

Страница 10: ...be carried out in due consideration of the notes on the transport packaging Nonobservance of these instructions can cause damage to the device The delivery must be checked for completeness and possibl...

Страница 11: ...our homepage Welded sockets are used to connect the sensors to the process Threaded adapters enable simple adaptation of sensors with stand ard threaded fittings e g to process side hygiene connection...

Страница 12: ...lement of the measuring cell and processing fitting combination with the weakest pressure into consideration and may applied permanently The specification refers to a reference temperature of 20 C 68...

Страница 13: ...hexagon on the process fitting must be tightened with a suitable wrench See chapter Dimensions for wrench size Warning The housing or the electrical connection may not be used for screw ing in Dependi...

Страница 14: ...n mind when setting up the measuring system Mount the instrument above the measuring point Possible condensation can then drain off into the process line 1 2 3 Fig 8 Measurement setup for process pres...

Страница 15: ...ndensation in the pipe bends Even in applications with hot steam a medium temperature 100 C on the transmitter is ensured Keep the following in mind when setting up the measuring system Mount the inst...

Страница 16: ...output current Keep in mind the following additional factors that influence the operat ing voltage Lower output voltage of the power supply unit under nominal load e g with a sensor current of 20 5 mA...

Страница 17: ...dividual wires 5 Lead the cable through the cable gland into the plug housing 6 Connect the wire ends to the screw terminals according to the wiring plan 2 3 1 4 Fig 12 Connection to the screw termina...

Страница 18: ...g 14 Wiring plan two wire 4 20 mA plug according to ISO 4400 1 Voltage supply and signal output Contact plug connector Function Polarity 1 Voltage supply signal output 2 Voltage supply signal output 3...

Страница 19: ...ccur during operation These may be caused by the following e g Sensor Process Voltage supply Signal processing The first measures are Evaluation of fault messages Checking the output signal Treatment...

Страница 20: ...voltage too low load resist ance too high Check adapt if necessary Current signal greater than 22 mA less than 3 6 mA Sensor electronics defective Replace device or send in for repair de pending on de...

Страница 21: ...pressure in the vessel or pipeline high temperatures cor rosive or toxic media etc Take note of chapters Mounting and Connecting to voltage supply and carry out the listed steps in reverse order 7 2 D...

Страница 22: ...e published NAMUR recommendations are accepted as the standard in field instrumentation The device fulfils the requirements of the following NAMUR recom mendations NE 21 Electromagnetic compatibility...

Страница 23: ...ivery Thread G EN 837 manometer connection Klingersil C 4400 Thread G inside G ISO 228 1 Klingersil C 4400 Materials non wetted parts Electronics housing 316L M12 x 1 plug connector Contact support PA...

Страница 24: ...rload capacity in psi Nominal range Overload capacity max pressure Overload capacity min pressure 0 1 5 psig 225 psig 3 psig 0 5 psig 435 psig 12 psig 0 15 psig 525 psig 14 51 psig 0 30 psig 725 psig...

Страница 25: ...0 mbar 86 106 kPa 12 5 15 4 psig Determination of characteristics Limit point adjustment according to IEC 61298 2 Characteristic curve Linear Reference installation position upright diaphragm points d...

Страница 26: ...ctor Version 4 pin according to ISO 4400 Cable gland M16 x 1 5 for cable diameter 4 5 10 mm Screw terminals for cable cross section up to 1 5 mm AWG 16 Conductor version Massive wire or strand Round p...

Страница 27: ...2 x 1 plug IP66 IP67 Type 4X Plug according to ISO 4400 IP65 Altitude above sea level 5000 m 16404 ft Protection class III Pollution degree 2 9 2 Dimensions Housing and connections 11 5 mm 0 45 23 mm...

Страница 28: ...27 mm 1 06 G 23 mm 0 91 83 mm 3 27 3 mm 0 12 3 mm 0 12 6 mm 0 24 SW 27 mm 1 06 G 20 mm 0 79 80 mm 3 15 11 4 mm 0 45 17 5 mm 0 69 NPT 25 mm 0 98 20 mm 0 79 85 mm 3 35 NPT Fig 17 VEGABAR 18 threaded fit...

Страница 29: ...n unter www vega com Les lignes de produits VEGA sont globalement prot g es par des droits de propri t intellec tuelle Pour plus d informations on pourra se r f rer au site www vega com VEGA lineas de...

Страница 30: ...30 Notes VEGABAR 18 Two wire 4 20 mA 55575 EN 200327...

Страница 31: ...31 Notes VEGABAR 18 Two wire 4 20 mA 55575 EN 200327...

Страница 32: ...of delivery application practical use and operat ing conditions of the sensors and processing systems correspond to the information available at the time of printing Subject to change without prior n...

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