4222
21
22
23
31
33
24
MUX
EEPR
OM
CPU
V
loop
44
43
42
41
PTC
CJC
0.2 mA
20
Ω
+
-
+
-
2
4
3
+
-
50
.0
VALVE 5
l / min
4222V101-UK 19
BLOCK DIAGRAM
Potentiometer
2-wire transmitter
Voltage
Current
RTD and lin. R,
connection
wir
es
TC
Supply
Supply
21.6...253 V
A
C or
19.2...300 VDC
Gnd.
TTL, 5 V
NPN
PNP
, 24 V
Gr
een
Yello
w
Fr
equency
gener
at
or