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6
3.4 Connection
Connection terminals wiring directions
:
(1)
AH, High alarm relay
(
N/O, normally open
)
(2)
High/Low alarm relay
(
Common
)
(3)
AL, Low alarm relay
(
N/O, normally open
)
(4)
Spare
(5)
Spare
(6)
Ground
(7)
Power supply terminal: Connect AC110 ~ 220V
(8)
Power supply terminal: Connect the power supply phase
(9)
Conductivity sensor line A (red)
(10) Conductivity sensor line A (yellow or white)
(11) Spare
(12) Temperature sensor 1 (blue or brown)
(13) Temperature sensor 2 (black)
(14) Spare
(15) 4~20mA current Output (-)
(16) 4~20mA current Output (+)
Figure 5: connection terminals diagram