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Series 830/840/860 Instruction Manual Chapter 2 Installation
IM-83/84/86-H 2-9
Valve Purge and Valve Off Connections (Controllers Only)
Depending on the valve voltage, connect as shown below.
COM
Purge
On
Off
Open collector output
Valve Off
On
Off
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E
F
G
H
I
J
15 Volt Valve
Figure 2-6.
Valve Purge and Valve Off (20-Pin Connector)
+15V
Purge
On
Off
Open collector output
Valve Off
On
Off
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E
F
G
H
I
J
30 Volt Valve
COM
Figure 2-7.Valve Purge and Valve Off (20-Pin Connector)
Note: Typically controllers for 10 slpm or below will be equipped with a
15-volt valve circuit, while those above 10 slpm with a 30-volt cir-
cuit. Consult Technical Support if necessary.