VEGA VEGABAR 41 HART - Manual (Page 8)

8 VEGABAR 41 (HART ® )
1) Relating to the nominal measuring range.
2) In the compensated temperature range of 0°C … +80°C, reference temperature 20°C. Without isolating
diaphragm, capillaries, cooling element (see: Influence of the ambient temperature).
3) Acc. to IEC 770, point 6.1.2 relating to the nominal measuring range.
Product description
Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)
Deviation
Reference conditions (acc. to IEC 770)
- temperature
15°C … 35°C
- rel. humidity 45 % … 75 %
- air pressure 860 mbar … 1060 mbar/86 kPa … 106 kPa
Determination of characteristics limit point adjustment acc. to DIN 16 086
Characteristics linear
Deviation in characteristics incl. hysteresis and repeatability
- Turn Down 1 : 1 < 0.25 % with accuracy class 0.25
< 0.1 % with accuracy class 0.1
- Turn Down up to 1 : 5 typ. < 0.3 % with accuracy class 0.25
typ. < 0.1 % with accuracy class 0.1
- Turn Down up to 1 : 10 typ. < 0.4 % with accuracy class 0.25
typ. < 0.2 % with accuracy class 0.1
Influence of the ambient temperature
Average temperature coefficient
of the zero signal
2)
- Turn Down 1 : 1 < 0.15 %/10 K with accuracy class 0.25
< 0.05 %/10 K with accuracy class 0.1
- Turn Down up to 1 : 5 typ. < 0.225 %/10 K with accuracy class 0.25
typ. < 0.075 %/10 K with accuracy class 0.1
- Turn Down up to 1 : 10 typ. < 0.3 %/10 K with accuracy class 0.25
typ. < 0.1 %/10 K with accuracy class 0.1
Long-term stability
Long-term drift of the zero signal 1) 3) < 0.1 % per 2 years
Other actuating variables
Calibration position upright, diaphragm points downwards
Influence of mounting position < 0.2 mbar/20 Pa
Vibration resistance mechanical vibrations with 4 g and
5 … 100 Hz, tested acc. to the regulations of
German Lloyd GL-characteristics 2