VEGA VEGABAR 52 Foundation Fieldbus - Manual (Page 50)

50
10 Supplement
VEGABAR 52 • Foundation Fieldbus
36720-EN-130321
Nominal range Overload capacity, max.
pressure
Overload capacity, min. pres-
sure
0 … 36.26 psi 725.2 psi 0 psi
0 … 72.52 psi 942.7 psi 0 psi
0 … 145.0 psi 1305 psi 0 psi
0 … 362.6 psi 1885 psi 0 psi
0 … 870.2 psi 2901 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
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 10)
Applies to the digital signal output (HART, Profibus 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 absolutely flush process fittings EV, FT
Ʋ Turn down 1 : 1 up to 5 : 1 < 0.05 %
Ʋ Turn down > 5 : 1 < 0.01 % x TD
Deviation with version 0.075 %
Ʋ Turn down 1 : 1 up to 5 : 1 < 0.075 %
Ʋ Turn down > 5 : 1 < 0.015 % x TD
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
Deviation with absolute pressure measuring range 0.1 bar
Ʋ Turn down 1 : 1 up to 5 : 1 < 0.25 %
Ʋ Turn down > 5 : 1 < 0.05 % x TD
Influence of the product or ambient temperature
Thermal change zero signal and output span
10) Incl. non-linearity, hysteresis and non-repeatability.