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10 Supplement
VEGABAR 52 • Probus PA
36719-EN-130321
Referenceconditionsandactuatingvariables(accordingtoDINEN60770-1)
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
Inuence of the installation position
< 0.2 mbar/20 Pa (0.003 psig)
Deviation determined according to the limit point method according to IEC 60770
5)
Applies to the digital signal output (HART, Probus 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 ush process ttings 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
Inuenceoftheproductorambienttemperature
Thermal change zero signal and output span
Applies to the digital signal output (HART, Probus 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.
Thermal change zero signal and output span, reference temperature 20 °C (68 °F):
Ʋ In the compensated temperature
range 0 … +100 °C (+32 … +212 °F)
< (0.05 % + 0.1 % x TD)
Ʋ Outside the compensated tempera-
ture range
< (0.05 % + 0.15 % x TD)
Thermal change zero signal and output span with absolute pressure measuring range 0.1 bar,
reference temperature 20 °C (68 °F):
5)
Incl. non-linearity, hysteresis and non-repeatability.
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