VEGA VEGABAR 65 Foundation Fieldbus - Manual (Page 56)

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Turn down 1 : 1 up to 5 : 1 < 0.25 %
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Turn down > 5 : 1 < 0.05 % x TD
Influence of the product or ambient temperature
Applies to instruments with digital signal output (HART, Profibus PA, Foundation Fieldbus) as well
as to instruments with analogue current output 4 … 20 mA. Specifications refer to the set span.
Turn down (TD) = nominal measuring range/set span.
Thermal change zero signal and output span, reference temperature 20 °C (68 °F):
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In the compensated temperature range
0 … +100 °C (+32 … +212 °F) < (0.05 % + 0.1 % x TD)
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Outside the compensated temperature
range < (0.05 % + 0.15 % x TD)
Applies also to instruments with analogue 4 … 20 mA current output and refers to the set span.
Thermal change, current output < 0.15 % at -40 … +80 °C (-40 … +176 °F)
Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)
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) = nominal
measuring range/set span.
Long-term drift of the zero signal < (0.1 % x TD)/year
Ambient conditions
Ambient, storage and transport temperature -40 … +80 °C (-40 … +176 °F)
Process conditions
The specifications to the pressure stage and the product temperature are used as an overview.
The specifications of the type label are applicable.
Pressure stage, process fitting
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Thread 316L PN 60
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Thread Aluminium PN 25
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Hygienic fittings 316L PN 6, PN 10, PN 25, PN 40
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Flange 316L PN 16/PN 40 or 150 lb/300 lb
Product temperature
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Standard -12 … +140 °C (+10 … +284 °F)
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with extenation, extended thread or
Clamp 2½" -12 … +140 °C (+10 … +284 °F)
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with cooling element -12 … +180 °C (+10 … +356 °F)
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with cooling element and screening
sheet -12 … +200 °C (+10 … +392 °F)
Vibration resistance mechanical vibrations with 4 g and 5 … 100 Hz 12)
12) Tested according to the regulations of German Lloyd, GL directive 2.
56 VEGABAR 65 • Foundation Fieldbus
10 Supplement
28260
-EN
-090522