VEGA VEGABAR 63 Foundation Fieldbus User Manual
Page 55
Deviation determined according to the limit point method according to IEC 60770
13)
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) is the relation
nominal measuring range/set span.
Deviation
-
Turn down 1 : 1 up to 5 : 1
<
0.1 %
-
Turn down > 5 : 1
<
0.02 % x TD
Deviation with absolute pressure measuring range 0.1 bar
-
Turn down 1 : 1 up to 5 : 1
<
0.25 %
-
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 zignal, reference temperature 20 °C (68 °F):
-
In the compensated temperature range
0 … +100 °C (+32 … +212 °F)
<
0.05 %/10 K x TD
-
Outside the compensated temperature
range
typ. < 0.05 %/10 K 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
-
Standard version
-40 … +80 °C (-40 … +176 °F)
-
Standard version with indicating and
adjustment module
-15 … +70 °C (+5 … +158 °F)
-
Connection G1 A front-flush according to
EHEDG
-10 … +80 °C (+14 … +176 °F)
-
Fitting G1 A front-flush according to
EHEDG with indicating and adjustment
module
-10 … +70 °C (+14 … +158 °F)
13)
Incl. non-linearity, hysteresis and non-repeatability.
VEGABAR
63 • Foundation Fieldbus
55
10 Supplement
32464
-
EN
-081209