VEGA VEGAWELL 72 4 … 20 mA_HART - Manual (Page 36)

Nominal range Overload, max. pressure Overload, min. pressure
A bsolute pressure
0 … 15 psi 500 psi 0 psi
0 … 35 psi 700 psi 0 psi
0 … 70 psi 900 psi 0 psi
0 … 150 psi 1300 psi 0 psi
0 … 350 psi 1900 psi 0 psi
Output variable
O
utput signal 4 … 20 mA/HART
F ailure signal 22 mA (3.6 mA), adjustable via PACTware
M ax. output current 22.5 mA
R
un-up time approx. 2.5 s
D
amping (63 % of the input variable) 0 … 10 s, adjustable
S tep response time 200 ms (ti: 0 s, 0 … 63 %)
F ulfilled NAMUR recommendations NE 43
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 psig)
Deviation determined according to the limit point method according to IEC 60770 7 )
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.
7) I ncl. non-linearity, hysteresis and non-repeatability.
36 VEGAWELL 72 • 4 … 20 mA/HART
10 S upplement
27630
-EN
-080806