Vega VEGABAR 54 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 52)

10 Supplement

VEGABAR 54 • 4 … 20 mA/HART

36726-EN-130321

Nominalrange Overload capacity, max.

pressure

Overload capacity, min. pres-

sure

-3 … +3 psig +430 psig -12 psig

-7 … +7 psig +500 psig -15 psig

Absolute pressure

0 … 15 psi 500 psi 0 psi

0 … 35 psi 700 psi 0 psi

0 … 70 psi 900 psi 0 psi

0 … 150 psi 1300 psi 0 psi

0 … 350 psi 1900 psi 0 psi

0 … 900 psi 2900 psi 0 psi

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

Reference conditions according to DIN EN 61298-1

Ʋ Temperature +15 … +25 °C (+59 … +77 °F)

Ʋ Relative humidity 45 … 75 %

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

Determination of characteristics Limit point adjustment according to IEC 61298-2

Characterstic curve Linear

Reference installation position upright, diaphragm points downward

Inuenceoftheinstallationposition < 0.2 mbar/20 Pa (0.003 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 with version 0.1 %

Ʋ Turn down 1 : 1 up to 5 : 1 < 0.1 %

Ʋ Turn down > 5 : 1 < 0.02 % x TD

Deviation with version 0.2 %

Ʋ Turn down 1 : 1 up to 5 : 1 < 0.2 %

Ʋ Turn down > 5 : 1 < 0.04 % x TD

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

Averagetemperaturecoecientofthezerosignal

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.

In the compensated temperature range 0 … +100 °C (+32 … +212 °F), reference temperature

20 °C (68 °F).

Averagetemperaturecoecientzerosignal

Ʋ Turn down 1 : 1 < 0.05 %/10 K

11)

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

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