ENGLISH
13
Fig. 3
–
Connection diagram
TERMINAL BOARD “A”
Relay 1
COM
SV PURGE Solenoid Valve
NO
Relay 2
COM
INHIBITOR METERING PUMP
NO
Relay 3
COM
BIOCIDE 1 METERING PUMP
NO
Relay 4
COM
BIOCIDE 2 METERING PUMP
NO
TERMINAL BOARD “B”
AUX 1
COM
ON-OFF ALARM relay output for external signalling device
NO
TERMINAL BOARD “C”
IN 1
+
Digital input INHIBITOR level probe for the chemical tank
-
IN 2
+
Pulse Emitting Meter
-
IN 3
+
Proximity Sensor input BLACK wires
-
Proximity Sensor input BLUE wires
+12VDC
+
12 VDC output of the Proximity Sensor BROWN wire
4-20 mA1
+
(+) Proportional output Conductivity 4-20mA1 for metering pump mA, PLC, data collection
-
-
(-) Proportional output Conductivity 4-20mA1/mA2 for metering pump mA, PLC, data collection
4-20 mA2
+
(+) Proportional output Conductivity 4-20mA2 for metering pump mA, PLC, data collection
TERMINAL BOARD “D”
IN4
Digital input BIOCIDE 1 level probe for the chemical tank (+) (-)
IN5
Digital input BIOCIDE 2 level probe for the chemical tank (+) (-)
TERMINAL BOARD “E”
S +
Conductivity Probe (WHITE wire)
