Watlow Series V4 - Manual (Page 10)

Output 1 Wiring
Figure 10a – Switched DC, Open Collector
V4T _ - C _ _ _ - _ _ _ _
Figure 10b – 4-20mA Process
V4T _ - F _ _ _ - _ _ _ _
Maximum load impedance: 800
Ω
18
17
16
15
14
13
External
Load
-
+
4
5
6
18
17
16
15
14
13
8
7
OFF 1 2
16
unregulated
V+
V—
18
Internal Circuitry
18
17
16
15
14
13
External
Load
-
+
4
5
6
18
17
16
15
14
13
8
7
OFF 1 2
NOTE:
When an external
device with a non-
isolated circuit com-
mon is connected to
the 4-20mA or dc out-
put, you must use an
isolated or unground-
ed thermocouple.