Tabla de contenido
Publicidad
HAZARDOUS AREA
HMT360 Connection board
-
CH1
In case only CH1
is in use in HMT360,
keep CH2
unconnected.
HMT360 Safety factors:
U
= 28 Vdc
i
I
= 100 mA
i
P
= 700 mW
i
C
= 1 nF
i
L
= Negligibly low
i
Figure 2 HMT360 Connected to a Zener Barrier
-
+
+
CH2
ON
OFF
SAFE AREA
Intrinsically
safe certified
Zener
barriers
+
+
4-20 mA
4-20 mA
-
-
+
+
4-20 mA
-
-
Associated apparatus
entity parameters:
U
≤ U
o
i
I
≤ I
o
i
P
≤ P
o
i
C
≥ C
+ C
o
i
cable
L
≥ L
+ L
o
i
cable
4-20 mA
DC Power supply
+
-
Controller
+
-
+
-
In case of controller
with voltage input,
use shunt resistor:
Controller
+
RI
U = I*RI
-
7
Publicidad
Tabla de contenido
