VEGA VEGAWELL 51 4 … 20 mA_HART - Manual (Page 30)

S
ignal resolution 2 µA
F
ailure signal < 3.6 mA; 20.5 mA; 22 mA; unchanged
( adjustable via PACTware™)
M
ax. output current 22 mA
R un-up time 15 s
S tep response time 200 ms (ti: 0 s, 0 … 63 %)
F
ulfilled NAMUR recommenda-
tions
NE 43
Additional output parameter - temperature
integrated resistance thermometer
PT 100 according to DIN EN 60751
R
ange
-50 … +100 °C (-58 … +212 °F)
R esolution 1 °K
Reference conditions and actuating variables (similar to DIN EN 60770-1)
R
eference conditions according to DIN EN 61298-1
-
T
emperature + 15 … +25 °C (+59 … +77 °F)
-
R elative humidity 45 … 75 %
-
A ir pressure 860 … 1060 mbar/86 … 106 kPa
(12.5 … 15.4
psig)
D etermination of characteristics L imit point adjustment according to
IEC 61298-2
C haracteristics curve linear
R eference installation position upright, diaphragm points downward
I
nfluence of the installation position < 0.2 mbar/20 Pa (0.003 psi)
Deviation determined according to the limit point method according to IEC 60770 5 )
A pplies to digital HART interface as well as to analogue current output 4 … 20 mA.
S
pecifications refer to the set span. Turn down (TD) is the relation nominal measuring
range/set span.
D
eviation
-
T urn down 1 : 1 up to 5 : 1 < 0.2 %
-
T urn down up to 10 : 1 < 0.04 % x TD
5) I ncl. non-linearity, hysteresis and non-repeatability.
S upplement
30 VEGAWELL 51 • 4 … 20 mA/HART
32468
-EN
-080604