Vega VEGABAR 61 Foundation Fieldbus Bedienungsanleitung PDF herunterladen (Seite 56)

Nominal range Overload, max. pressure Overload, min. pressure

0 … 2.5 bar/0 … 250 k Pa 50 bar/5000 kPa

0 bar abs.

0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa

0 bar

abs.

0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa

0 bar abs.

0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa

0 bar abs.

0 … 60 bar/0 … 6000 kPa 200 bar/20000 kPa

0 bar abs.

0 … 100 bar/0 … 10 MPa 200 bar/20000 kPa

0 bar abs.

0 … 400 bar/0 … 40 MPa 800 bar/80000 kPa

0 bar abs.

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

Reference conditions according to DIN EN 61298-1

- Temperature +18 … +30 °C (+64 … +86 °F)

- Relative humidity 45 … 75 %

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

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

Characteristics linear

Reference installation position upright, diaphragm points downward

Inﬂuence of the installation position depending on the isolating diaphragm version

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

12)

Applies to digital interfaces (HART, Proﬁbus PA, Foundation Fieldbus) as well as to analogue

current output 4 … 20 mA. Speciﬁcations refer to the set span. Turn down (TD) is the relation

nominal measuring range/set span.

Deviation

- Turn down 1 : 1 up to 5 : 1 < 0.1 %

- Turn down > 5 : 1 < 0.02 % x TD

Deviation with absolute pressure measuring range 0.1 bar

- Turn down 1 : 1 up to 5 : 1 < 0.25 %

- Turn down > 5 : 1 < 0.05 % x TD

Inﬂuence of the product or ambient temperature

Applies to instruments with digital signal output (HART, Proﬁbus PA, Foundation Fieldbus) as we ll

as to instruments with analogue current output 4 … 20 mA. Speciﬁcations refer to the set span.

Turn down (TD) = nominal measuring range/set span.

12)

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

56 VEGABAR 61 • Foun

dation Fieldbus

10 Supplement

28258-EN-081209

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