Vega VEGABAR 51 Foundation Fieldbus Bedienungsanleitung PDF herunterladen (Seite 50)

10 Supplement

VEGABAR 51 • Foundation Fieldbus

36715-EN-130321

Long-termstability(accordingtoDIN16086andIEC60770-1)

Applies to digitalinterfaces(HART,ProbusPA,FoundationFieldbus)aswellastoanalogue cur-

rentoutput4…20mA.Specicationsrefertothesetspan.Turndown(TD)=nominalmeasuring

range/set span.

Long-termdriftofthezerosignal <(0.1%xTD)/year

Ambient conditions

Ambient, storage and transport temperature

Ʋ Standard version -40…+80°C(-40…+176°F)

Ʋ Version for oxygen applications

11)

-40…+60°C(-40…+140°F)

Ʋ VersionsIP66/IP68(1bar)andIP68

(25bar),connectioncablePUR

-20…+80°C(-4…+176°F)

Ʋ VersionIP66/IP68(1bar),connec-

tion cable PE

-20…+60°C(-4…+140°F)

Additionaltemperatureinuencethroughchemicalseal

Thespecicationsrefertodiaphragmmaterial316Laswellasisolatingliquidsiliconeoil.Theyare

only used for estimation. The actual values depend on the diameter, material and strength of the

diaphragm as well as the isolating liquid. They are available on request.

Temperaturecoecientofthechemicalsealinmbar/10Kwith

Ʋ Flange DN 50 PN 40, Form C,

DIN 2501

1.2 mbar/10 K

Ʋ Flange DN 80 PN 40, Form C,

DIN 2501

0.25 mbar/10 K

Ʋ Flange DN 80 PN 40, Form C,

DIN 2501 with extension 50 mm

1.34 mbar/10 K

Ʋ Flange2"150lbsRF,ANSIB16.5 1.2 mbar/10 K

Ʋ Flange3"150lbsRF,ANSIB16.5 0.25 mbar/10 K

Ʋ Flange3"150lbsRF,ANSIB16.5with

extension2"

1.34 mbar/10 K

Temperaturecoecientofacoolingele-

ment, depending on the diaphragm-ø

0.1 … 1.5 mbar/10 K

Temperaturecoecientofa1m

long capillary line, depending on the

diaphragm-ø

0.1 … 15 mbar/10 K

Process conditions

Thespecicationsofthepressurestageandproducttemperatureareusedasanoverview.The

specicationsonthetypelabelareapplicable.

Pressure stages

Ʋ Thread PN 160 … PN 600

Ʋ Flanges PN 16 … PN 100

Ʋ Hygienicttings PN 16 … PN 40

11)

Upto60°C(140°F).

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