Vega VEGABAR 67 Foundation Fieldbus - climate compensat Bedienungsanleitung PDF herunterladen (Seite 52)

10 Supplement

VEGABAR 67 • Foundation Fieldbus - climate compensated

39446-EN-130321

Nominalrange Overload capacity, max.

pressure

Overload capacity, min. pres-

sure

0 … +6 psig +430 psig -15 psig

0 … +15 psig +500 psig -15 psig

0 … +35 psig +700 psig -15 psig

0 … +70 psig +950 psig -15 psig

0 … +150 psig +1300 psig -15 psig

0 … +350 psig +1900 psig -15 psig

0 … +900 psig +2900 psig -15 psig

Referenceconditionsandactuatingvariables(accordingtoDINEN60770-1)

Reference conditions according to DIN EN 61298-1

Ʋ Temperature 18 … 30 °C (64 … 86 °F)

Ʋ Relative humidity 45 … 75 %

Ʋ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psi)

Determination of characteristics limit point adjustment according to DIN 16086

Characterstic curve Linear

Reference installation position upright, diaphragm points downward

Inuenceoftheinstallationposition < 5 mbar/0.5 kPa (0.07 psig)

Deviation determined according to the limit point method according to IEC 60770

11)

Applies to the digitalsignaloutput(HART,ProbusPA,FoundationFieldbus)aswellastoana-

logue

current output 4 … 20 mA and refers to the set span. Turn down (TD) is the ratio nominal

measuring range/set span.

Deviation

Ʋ Turn down 1 : 1 up to 5 : 1 < 0.1 %

Ʋ Turn down > 5 : 1 < 0.02 % x TD

Inuenceoftheproductorambienttemperature

Averagetemperaturecoecientofthezerosignalandtheoutputspan

Applies to the digitalsignaloutput(HART,ProbusPA,FoundationFieldbus)aswellastoana-

logue current output 4 … 20 mA and refers to the set span. Turn down (TD) is the ratio nominal

measuring range/set span.

Nominalmeasuringrange

in bar/kPa

Nominalmeasuring

range in psig

Average temperature co-

ecientofthezerosignal

and the output span, in

the compensated temper-

ature range 0 … +100 °C

(+32…+212°F),refer-

ence temperature 20 °C

(68°F)

Average temperature co-

ecientofthezerosignal

and the output span, out-

side the compensated

temperature range

0 … 0.2 bar/0 … 20 kPa 0 … 3 psi < (0.15 + 0.4 x TD)% < (0.15 + 0.6 x TD)%

0 … 0.4 bar/0 … 40 kPa 0 … 6 psig < (0.15 + 0.4 x TD)% < (0.15 + 0.6 x TD)%

0 … 1 bar/0 … 100 kPa 0 … 15 psig < (0.1 + 0.2 x TD)% < (0.1 + 0.3 x TD)%

11)

Incl. non-linearity, hysteresis and non-repeatability.

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