Instruction manual

17
Figure 7: Wiring Diagram for Flow Switches, Water Meter Contactors and Sensors
RS-232
RXD
TXD
GND
MAKEUP
WATER
METER
BLEED
WATER
METER
FLOW
SWTICH
REED SWITCH
WATERMETER-
CONTACTOR
FLOW
SWITCH
SHIELD
BLK
RED
RED/BLK POLARITY
NOT CRITICAL
POLARITY
NOT CRITICAL
HALL EFFECT
WATERMETER-
CONTACTOR
OR
PADDLEWHEEL
S
H
I
E
L
D
S
I
G
N
A
L
G
N
D
(
-
)
RED
BLK
DETAIL "A"
SEE DETAIL
"A"
MAKEUP
CONDUCTIVITY
OPTION
(WIRING THE SAME
AS DETAIL "C")
ORP OPTION
(WIRING THE
SAME AS
DETAIL "C" EXCEPT
NO T+ OR T-)
pH OPTION
(WIRING THE
SAME AS
DETAIL "C" EXCEPT NO
T+ OR T-)
SYSTEM COND
SEE DETAIL
"C"
N/C
RTS
CTS
P
O
W
E
R
(
+
)
T-
T+
IN-
IN+ +5
-5
SENSOR
DETAIL "C"
CONDUCTIVITY
ELECTRODE
SHIELD
TO GND STUD
B
L
U
W
H
T
/
B
L
U
O
R
N
W
H
T
/
O
R
N
G
R
N
W
H
T
/
G
R
N
+V
IN+
IN-
+V
IN+
IN-
T-
T+
IN-
IN+
+5
-5
SENSOR
DETAIL "C"
BLU
W
H
T
/
B
L
U
ORN
WHT/ORN
GRN
WHT/GRN
High Pressure
Conductivity
Electrode
-T
-T
+T
+T
-
+
-S
+S
-5
+5
W
H
T
G
R
N
B
L
K
R
E
D
Shield
(Drain wire)
to GND
stud on
front
panel