Vega VEGABAR 64 Operating Instructions Manual page 57

Nominal range
0 ... 900 psi
Reference conditions and actuating variables (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Temperature
-
Relative humidity
-
Air pressure
-
Determination of characteristics
Characteristics
Reference installation position
Influence of the installation position
Deviation determined according to the limit point method according to IEC 60770
Applies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) 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
Turn down 1 : 1 up to 5 : 1
-
Turn down > 5 : 1
-
Deviation with absolutely flush process fittings EV, FT
Turn down 1 : 1 up to 5 : 1
-
Turn down > 5 : 1
-
Deviation with absolute pressure measuring range 0.1 bar
Turn down 1 : 1 up to 5 : 1
-
Turn down > 5 : 1
-
Influence of the product or ambient temperature
Applies also to instruments with analogue 4 ... 20 mA current output and refers to the 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)
Outside the compensated temperature
-
range
VEGABAR 64 • Foundation Fieldbus
Overload, max. pressure Overload, min. pressure
2900 psi
+15 ... +25 °C (+59 ... +77 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
Limit point adjustment according to IEC 61298-2
linear
upright, diaphragm points downward
< 0.2 mbar/20 Pa (0.003 psig)
< 0.075 %
< 0.015 % x TD
< 0.05 %
< 0.01 % x TD
< 0.25 % x TD
< 0.05 % x TD
< (0.05 % + 0.1 % x TD)
< (0.05 % + 0.15 % x TD)
11) Incl. non-linearity, hysteresis and non-repeatability.
10 Supplement
0 psi
11)
57