Vega VEGABAR 66 Operating Instructions Manual page 60

10 Supplement
Nominal range
0 ... +70 psig
0 ... +150 psig
0 ... +350 psig
0 ... +900 psig
Absolute pressure
0 ... 15 psi
0 ... 35 psi
0 ... 70 psi
0 ... 150 psi
0 ... 350 psi
Reference conditions and actuating variables (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Temperature
-
Relative humidity
-
Air pressure
-
Determination of characteristics
Characterstic curve
Reference installation position
Influence of the installation position
Deviation determined according to the limit point method according to IEC 60770
Applies to the digital signal output (HART, Profibus PA, Foundation Fieldbus) as well as to
analogue current output 4 ... 20 mA and refers to the set span. Turn down (TD) is the ratio nominal
measuring range/set span.
Deviation
Turn down 1 : 1 up to 5 : 1
-
Turn down > 5 : 1
-
Influence of the product or ambient temperature
Thermal change zero signal and output span
Applies to the digital signal output (HART, Profibus PA, Foundation Fieldbus) as well as to
analogue 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):
In the compensated temperature range
-
0 ... +100 °C (+32 ... +212 °F)
60
Overload capacity, max.
pressure
+950 psig
+1300 psig
+1900 psig
+2900 psig
500 psi
700 psi
900 psi
1300 psi
1900 psi
+15 ... +25 °C (+59 ... +77 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psi)
Limit point adjustment according to IEC 61298-2
Linear
upright, diaphragm points downward
< 0.2 mbar/20 Pa (0.003 psig)
< 0.1 %
< 0.02 % x TD
< 0.05 %/10 K x TD
12) Incl. non-linearity, hysteresis and non-repeatability.
Overload capacity, min.
pressure
-15 psig
-15 psig
-15 psig
-15 psig
0 psi
0 psi
0 psi
0 psi
0 psi
VEGABAR 66 • Foundation Fieldbus
12)