Block Diagram - PR 4222 Product Manual

RTD and lin. R,
connection
wires
4 3
+
-
+
-
50.0
l / min
VALVE 5

Block diagram

TC
0.2 mA
2
44
43
MUX
42
-
CJC
+
41
PTC
20 Ω
4222V101-UK
V
loop
CPU
Frequency
generator
Green
EEPROM
Yellow
4222
33
Supply
21.6...253 VAC or
19.2...300 VDC
31
Supply
24
PNP, 24 V
23
NPN
22
Gnd.
21
TTL, 5 V
17