VEGA VEGABAR 21 - Manual (Page 8)

8 VEGABAR 21
1) Relating to the nominal 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, item 6.1.2 relating to the nominal range.
4) At pabs < 1 bar (vacuum range ) the isolating liquid boils already at low temperatures.
Product description
Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)
Influence of the ambient temperature
Average temperature coefficient
of the zero signal
1) 2)
- accuracy class 0,25 < 0,15 %/10 K
- accuracy class 0,1 < 0,05 %/10 K
Long-term stability
Long-term drift of the zero signal 1) 3) < 0,1 % (meas. cell, without considering the
isolating system)
Deviation
Reference conditions (acc. to IEC 770)
- temperature
15°C … 35°C
- rel. humidity 45 % … 75 %
- air pressure 860 mbar … 1060 mbar
Determination of characteristics limit point adjustment acc. to DIN 16 086
Characteristics linear
Deviation in characteristics 1)
- accuracy class 0,25 < 0,25 %
- accuracy class 0,1 < 0,1 %
Hysteresis 1) < 0,02 %
Repeatability 1) < 0,02 %
Other actuating variables
Calibration position standing, diaphragm points downwards
Vibration resistance mechanical vibrations with 4 g and
5 … 100 Hz, tested acc. to the regulations of
German Lloyd GL-characteristics 2
Operating conditions
Ambient conditions
Ambient temperature -40°C … +85°C
- indication module -20°C … +70°C
Storage and transport temperature -40°C … +85°C
Medium temperature -40°C … +100°C
Medium temperature, abhängig von
Druckmittlerflüssigkeit
Temperature
p
abs
> 1 bar / p
abs
4) < 1 bar
- silicone oil -40°C … +130°C / -40°C … +130°C
- silicone oil and cooling element -40°C … +200°C / -40°C … +130°C
- silicone oil and capillaries 1 m -40°C … +200°C / -40°C … +130°C
- vegetable oil -10°C … +130°C / -10°C … +130°C
- vegetalble oil and cooling element -10°C … +250°C / -10°C … +130°C
- high temperature oil a. cooling element -10°C … +400°C / -10°C … +200°C
- high temperature oil and capillaries 1 m -10°C … +400°C / -10°C … +200°C