Vega VEGABAR 52 - climate compensated Bedienungsanleitung PDF herunterladen (Seite 48)

Nominal

range Overload, max. pressure Overload, min. pressure

-15 … 25 psig 700 psig -15 psig

-15 … 70 psig 950 psig -15 psig

-15 … 150 psig 1300 psig -15 psig

-15 … 350 psig 1900 psig -15 psig

-15 … 900 psig 2900 psig -15 psig

-1.5 … 1.5 psig 500 psig -15 psig

-3 … 3 psig 500 psig -12 psig

-7 … 7 psig 700 psig -15 psig

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

Reference conditions according to DIN EN 61298-1

- Temperature +15 … +25 °C (+59 … +77 °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 curve linear

Reference installation position upright, diaphragm points downward

Inﬂuence of the installation position < 0.2 mbar/20 Pa (0.003 psig)

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

Applies to digital HART interface 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 < (0.05 + 0.025 x TD)%

Inﬂuence of the product or ambient temperature

Average temperature coeﬃcient of the zero signal

Applies to digital HART interface 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.

Nominal measuring range in

bar/kPa

Nominal

measuring

range in psig

Average temperature coeﬃ-

cient of the zero signal

Average temperature coeﬃ-

cient of the zero signal

10)

0 … 0.2 bar/0 … 20 kPa 0 … 3 psig < (0.05 + 0.05 x TD)%/10K < (0.05 + 0.1 x TD)%/10K

0 … 0.4 bar/0 … 40 kPa 0 … 6 psig < (0.05 + 0.05 x TD)%/10K < (0.05 + 0.1 x TD)%/10K

0 … 1 bar/0 … 100 kPa 0 … 15 psig < (0.02 + 0.05 x TD)%/10K < (0.02 + 0.1 x TD)%/10K

0 … 2.5 bar/0 … 250 kPa 0 … 35 psig < (0.02 + 0.05 x TD)%/10K < (0.02 + 0.1 x TD)%/10K

0 … 5 bar/0 … 500 kPa 0 … 70 psig < (0.02 + 0.03 x TD)%/10K < (0.04 + 0.06 x TD)%/10K

48 VE

GABAR 52 • 4 … 20 mA/HART - climate compensated

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