background image

3

I

nstrument selection

A

pplication area

VEGABAR

81

T

he

VEGABAR

81

is a pressure transmitter with chemical seal for pres

-

sure and level measurement

.

T

he process

-

adapted chemical seal system

of

VEGABAR

81

ensures reliable measurement even in highly corrosive

and hot media

.

VEGABAR

82

T

he

VEGABAR

82

pressure transmitter can be used universally for meas

-

urement of gases

,

vapours and liquids

.

E

ven materials like sand are no

problem for the abrasion

-

resistant ceramic measuring cell

.

T

he

VEGA

-

BAR

82

is an economical solution for a multitude of applications in all

areas of industry

.

VEGABAR

83

T

he

VEGABAR

83

is a pressure transmitter for pressure measurement of

gases

,

vapours and liquids in all industries

.

VEGABAR

83

o

ers special

advantages for applications with high pressures

.

C

on

guration and housing protection classes

1

2

3

F

ig

.

4

:

E

xample of a

VEGABAR

82

with connection

G

1

½

and plastic housing with

protection

IP

66

/

IP

67

1

H

ousing cover with integrated display and adjustment module

(

optional

)

2

H

ousing with electronics

3

P

rocess

tting with measuring cell

1

2

3

4

5

F

ig

.

6

:

E

xample of a

VEGABAR

82

with

ange and aluminium housing in protection

IP

66

/

IP

68

,

1

bar

1

H

ousing cover with integrated display and adjustment module

(

optional

)

2

H

ousing with electronics

3

P

rocess

tting with measuring cell

4

C

able gland

5

C

onnection cable

1

2

3

5

4

F

ig

.

8

:

E

xample of a

VEGABAR

82

with

ange and stainless steel housing with

protection rating

IP

68

and external electronics

1

H

ousing cover with integrated display and adjustment module

(

optional

)

2

H

ousing with electronics

3

H

ousing base

4

C

onnection cable

5

P

rocess

tting with measuring cell

M

easured variables

T

he pressure transmitters

VEGABAR

81

,

82

and

83

are suitable for meas

-

urement of the following process variables

:

l

P

rocess pressure

l

L

evel

F

ig

.

10

:

P

rocess pressure measurement

I

n conjunction with a

S

lave sensor for electronic di

erential pressure

measurement

,

the instruments are also suitable for the measurement of

the following process variables

:

l

D

i

erential pressure

l

L

evel

l

F

low

l

D

ensity

l

I

nterface

F

ig

.

11

:

D

i

erential pressure measurement via

M

aster

-

S

lave combination

I

nstrument selection

P

rocess pressure

P

ressure transmitter

5

45078

-

EN

-

140625

Содержание VEGABAR 81

Страница 1: ...Process pressure Pressure transmitter VEGABAR 81 82 83 Product Information ...

Страница 2: ... differential pressure 13 12 Operation 14 13 Dimensions 15 Take note of safety instructions for Ex applications Please note the Ex specific safety information which you can find on our homepage www vega com downloads under Approvals and which comes with every instrument In hazardous areas you should take note of the corresponding regulations conformity and type approval certificates of the sensors and...

Страница 3: ...ement is the CERTEC measuring cell with front flush abrasion resistant ceramic diaphragm The hydrostatic pressure of the medium or the process pressure causes a capacitance change in the measuring cell via the diaphragm This change is converted into an ap propriate output signal 16 µm 1 2 3 Fig 2 Configuration of the CERTEC measuring cell in VEGABAR 82 1 Diaphragm 2 Soldered glass bond 3 Base elemen...

Страница 4: ...ic 316Ti Elgiloy 2 4711 Alloy C276 gold coated gold rhodi um coated Measuring cell seal FKM EPDM FFKM Isolating liquid Silicone oil high temperature oil halocarbon oil med white oil Dry measuring system Silicone oil Halocarbon oil Med white oil Measuring range 1 1000 bar 100 100 MPa 14 5 14500 psig 1 100 bar 100 10 MPa 14 5 1450 psig 1 1000 bar 100 100 MPa 14 5 14500 psig Smallest measuring range ...

Страница 5: ...g with electronics 3 Process fitting with measuring cell 1 2 3 4 5 Fig 6 Example of a VEGABAR 82 with flange and aluminium housing in protection IP 66 IP 68 1 bar 1 Housing cover with integrated display and adjustment module optional 2 Housing with electronics 3 Process fitting with measuring cell 4 Cable gland 5 Connection cable 1 2 3 5 4 Fig 8 Example of a VEGABAR 82 with flange and stainless steel ...

Страница 6: ... MPa 400 bar 40 MPa 1000 bar 100 MPa Smallest measuring range 400 mbar 40 kPa 100 mbar 10 kPa 25 mbar 2 5 kPa Vacuum applications up to 1 mbarabs 100 Pa Suitability for industry specific ap plications Aggregates and min ing industry Chemical Power generation Foodstuffs Metal production Offshore Paper Petrochemical Pharmaceutical Shipbuilding Environment and recy cling industry Water waste water Cemen...

Страница 7: ...ss Stainless steel 316L Protection rating IP 66 IP 67 IP 69K IP 66 IP 67 IP 66 IP 68 1 bar Version Single chamber electropolished Single chamber precision casting Double chamber precision casting Application area Aggressive environment food pro cessing pharmaceutical Aggressive environment extreme mechanical stress Separate version Material Stainless steel 316L plastic PBT Stainless steel 316L Pro...

Страница 8: ...a pipeline Fig 12 Process pressure measurement on a pipeline with VEGABAR Level measurement The VEGABAR measures the level in a vessel Fig 14 Level measurement in a vessel with VEGABAR Differential pressure measurement The VEGABAR measures the pressure difference between input and output of a filter Fig 16 Differential pressure measurement on a filter with VEGABAR and Slave sensor Flow measurement The ...

Страница 9: ... additional factors that influence the operating voltage l Lower output voltage of the power supply unit under nominal load e g with a sensor current of 20 5 mA or 22 mA in case of fault l Influence of additional instruments in the circuit see load values in chapter Technical data of the operatinginstructionsof the respective instrument Connection cable The instrument is connected with standardtwo w...

Страница 10: ...0 5 mA or 22 mA in case of fault l Influence of additional instruments in the circuit see load values in chapter Technical data of the operatinginstructionsof the respective instrument Connection cable The instrument is connected with standardtwo wire cable without screen If electromagnetic interference is expected which is above the test values of EN 61326 1 for industrial areas screened cable sho...

Страница 11: ... screening and grounding Insystemswithpotentialequalisation connectthecablescreendirectlyto ground potential at the power supply unit in the connection box and at the sensor The screen in the sensor must be connected directly to the inter nal ground terminal The ground terminal outside on the housing must be connected to the potential equalisation low impedance In systems without potential equalis...

Страница 12: ...and grounding Insystemswithpotentialequalisation connectthecablescreendirectlyto ground potential at the power supply unit in the connection box and at the sensor The screen in the sensor must be connected directly to the inter nal ground terminal The ground terminal outside on the housing must be connected to the potential equalisation low impedance In systems without potential equalisation conne...

Страница 13: ...to the sensor with standard four wire screened cable In the product configurator of VEGABAR different cable glands are avail able This selection covers all cable diameters in the range of 4 12 mm 0 16 0 47 in Cable screen and grounding Connect the cable screen on both ends to ground potential In VEGABAR Slave and Master sensor the screen must be connected directly to the internal ground terminal The...

Страница 14: ...rd version all functions for complete setup are already included An assistant for simple project configuration simplifies the adjustment considerably Saving printing the project as well as import export functions are also part of the standard version In the full version there is also an extended print function for complete project documentation as well as a save function for measured value and echo ...

Страница 15: ...sion casting 2 Double chamber housing precision casting VEGABAR 81 109 mm 4 29 89 mm 3 5 D 1 2 1 Flange version 2 Version with tube isolating diaphragm VEGABAR 82 2 3 1 20 8 mm 0 82 45 mm 1 77 SW 27 mm 1 06 G ø 18 4 mm 0 72 ø 27 mm 1 06 G1 50 mm 1 97 22 mm 0 87 ø 55 mm 2 17 SW 46 mm 1 81 50 mm 1 97 1 Threaded version G1 A 2 Threaded version G A inner G A 3 Threaded version G A inner G A PVDF VEGAB...

Страница 16: ... 7836 50 0 Fax 49 7836 50 201 E Mail info de vega com www vega com You can find at www vega com l operating instructions manuals l specification sheet l Software l drawings l certificates l approvals and much much more Subject to change without prior notice 45078 EN 140625 ...

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