VEGA VEGABAR 66 Foundation Fieldbus - Manual (Page 55)

55
10 Supplement
VEGABAR 66 • Foundation Fieldbus
36740-EN-130321
0,15 %
-0,15 %
-40°C -20°C
20°C
40°C 60°C 80°C
Fig. 31: Thermal change, current output
Long-term stability (according to DIN 16086 and IEC 60770-1)
Applies to digital HART interface as well as to analogue current output 4 … 20 mA under refer-
ence conditions. Specifications refer to the set span. Turn down (TD) is the relation nominal meas-
uring range/set span.
Long-term drift of the zero signal:
Ʋ For one year < 0.05 % x TD
Ʋ For five years < 0.1 % x TD
Ʋ For ten years < 0.2 % x TD
Ambient conditions
Ambient, storage and transport temperature
Ʋ Version with connection tube -40 … +80 °C (-40 … +176 °F)
Ʋ Version with suspension cable FEP,
PUR
-20 … +80 °C (-4 … +176 °F)
Ʋ Version with suspension cable PE -20 … +60 °C (-4 … +140 °F)
Process conditions
The specifications of the pressure stage and product temperature are used as an overview. The
specifications on the type label are applicable.
Process pressure, transmitter
Ʋ with measuring ranges 0.1 bar
(1.45 psig) or 0.2 bar (2.9 psig)
max. 15 bar (217.6 psig) or max. 20 bar (290 psig) 12)
Ʋ with meas. ranges from 0.4 bar
(5.8 psig)
max. 25 bar (363 psig) 13)
Pressure stage, process fitting
Ʋ Threaded fitting 316L PN 3, PVDF PN 5 14)
Ʋ Thread 316L PN 25, PVDF unpressurized
Ʋ Lock fitting Unpressurized
Ʋ Flange 316L PN 16 or PN 40
Ʋ Flange GFK 10 bar
12) Limited by the overpressure resistance of the measuring cell.
13) Limitation by the pressure-tightness of the cable connection.
14) Limited by the overpressure resistance of the measuring cell.