VEGA VEGABAR 66 4 … 20 mA_HART - climate compensated - Manual (Page 57)

57
10 Supplement
VEGABAR 66 • 4 … 20 mA/HART - climate compensated
36738-EN-130321
The specifications are only an overview and refer to the measuring cell. Limitations due to the ma-
terial and version of the process fitting are possible. The specifications on the nameplate apply.
Nominal range Overload capacity, max.
pressure
Overload capacity, min. pres-
sure
Gauge pressure
0 … +3 psig
+500 psig -15 psig
0 … +6 psig +700 psig -15 psig
0 … +15 psig +700 psig -15 psig
0 … +35 psig +950 psig -15 psig
0 … +70 psig +950 psig -15 psig
0 … +150 psig +1300 psig -15 psig
0 … +350 psig +1900 psig -15 psig
0 … +900 psig +2900 psig -15 psig
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 12)
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
Ʋ Turn down 1 : 1 up to 5 : 1 < 0.1 %
Ʋ Turn down > 5 : 1 < 0.02 % x TD
Influence of the product or ambient temperature
Average temperature coefficient of the zero signal and the output span
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.
12) Incl. non-linearity, hysteresis and non-repeatability.