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C700 | C720 Series Operating Manual
Instrument Connection
EC1, EC2, EC3, EC4
T+T
INPUT
REF
S+S
CE RE WE
I1 G I2
I3 G I4
RLY3, RLY2, RLY1
G, L, N
V + V- RX TX
V + V- A, B
V + V- A B
A1 B1
+ -
Electrical conductivity/resistivity wiring
Temperature connection
pH/ORP/lon measure
pH/ORP/lon reference
Membrane dissolved oxygen, FCL
Constant voltage Residual Chlorine/chlorine Dioxide/ozone
Output current
Input current
Three Relays
G-ground wire, L-live, N-neutral
RS-232 communication output
Digital input channel 1
Digital input channel 2
RS-485 communication output
DC power supply
◀ ◀
5
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