2.2.3 ELECTRICAL CONNECTIONS TABLE
Chlorine
probe input
(CU-PT)
Chlorine
probe input
(CU-PT)
Chlorine
probe input
(CU-PT)
Temperature Probe (Green)
PT100 or PT1000 Temperature Probe Input
Temperature Probe (Yellow)
Output current GND connector
RS485 Serial Port
with ModBus RTU protocol
15 to 30 Vdc voltage input
Relay 1 output (dry contact)
Relay 2 output (dry contact)
Relay phase (100 to 240Vac)
Relay neutral (100 to 240 Vac)
Relay phase (100 to 240Vac)
Relay neutral (100 to 240 Vac)
Relay phase (100 to 240Vac)
Relay neutral (100 to 240 Vac)
Power supply phase (100 to
240 Vac)
100 to 240 Vac 50/60 Hz Power Supply Connector
Power supply neutral (100 to
240 Vac)
Example of the Connections Label affixed to the back of the instrument’s connections compartment.