13
Power Supply
(115 VAC or 230 VAC)
Contact Closure:
Polarity not critical
Interlock Function
GROUND
STUD
L1 L2/N
G
R
N
1
20
V
G
R
N
/Y
EL
2
40
V
WHT 120V
BLU 240V
B
L
K
1
2
0
V
B
R
N
2
4
0
V
IN
+
IN
-
+5V
-5
V
IN-
DIG IN 2 DIG IN 3
IN+ IN-
DIG IN 1
IN+
IN-
IN+
DIG IN 4
IN+ IN-
DIG IN 5
IN+ IN-
IN-
DI
G
IN 2
DIG
IN
3
IN
+
IN
-
DIG IN
1
IN
+
IN
-
IN
+
DIG
IN 4
IN
+
IN-
DI
G
IN
5
IN
+
IN
-
L1
L2/N
L2
L2
L2
L2
L2
L2
BLEED
N.C.
N.O.
N.C.
BOI 1
N.O.
N.C.
FEED
N.C.
BIO 2
N.O.
N.C.
N.O.
N.O.
ALARM
N.C.
N.O.
SYSTEM A
SYSTEM A
Contact Closure:
Polarity not critical
Interlock Function
SYSTEM B
IN+
IN-
+5V
-5V
SYSTEM B
+5V
T-
T+
-5V
IN+ IN-
OPTIONAL TEMPERATURE
COMPENSATION (pH ONLY)
GROUND
EXTERNAL
PREAMPLIFIER
(190783)
to gr
o
und
+5V
T-
T+
-5V
IN+ IN-
OPTIONAL TEMPERATURE
COMPENSATION (pH ONLY)
GROUND
EXTERNAL
PREAMPLIFIER
(190783)
to
g
rou
nd
Figure 3d WDP Inputs using pH/ORP Electrode/External Preamplifiers
