VEGA VEGABAR 53 Profibus PA - Manual (Page 50)

50
10 Supplement
VEGABAR 53 • Profibus PA
36723-EN-130321
Ʋ Turn down 1 : 1 up to 5 : 1 < 0.25 %
Ʋ Turn down > 5 : 1 < 0.05 % x TD
Influence of the product or ambient temperature
Thermal change zero signal and output span
Applies to the digital signal output (HART, Profibus PA, Foundation Fieldbus) as well as to ana-
logue current output 4 … 20 mA and refers to the set span. Turn down (TD) is the ratio nominal
measuring range/set span.
Thermal change zero signal and output span, reference temperature 20 °C (68 °F):
Ʋ In the compensated temperature
range 0 … +100 °C (+32 … +212 °F)
< 0.05 %/10 K x TD
Ʋ Outside the compensated tempera-
ture range
typ. < 0.05 %/10 K x TD
Thermal change, current output
Applies also to the analogue 4 … 20 mA current output and refers to the set span.
Thermal change, current output
< 0.05 %/10 K, max. < 0.15 %, each with -40 … +80 °C
(-40 … +176 °F)
0,15 %
-0,15 %
-40°C -20°C
20°C
40°C 60°C 80°C
Fig. 27: Thermal change, current output
Long-term stability (according to DIN 16086 and IEC 60770-1)
Applies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to analogue cur-
rent 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
Ʋ Standard version -40 … +80 °C (-40 … +176 °F)
Ʋ Connection G1 A front-flush according
to EHEDG
-10 … +80 °C (+14 … +176 °F)
Ʋ Version for oxygen applications 12) -40 … +60 °C (-40 … +140 °F)
Ʋ Versions IP 66/IP 68 (1 bar) and IP 68
(25 bar), connection cable PUR
-20 … +80 °C (-4 … +176 °F)
12) Up to 60 °C (140 °F).