
3.3 Wiring descriptions of transmitter
3.3.1 Illustration of electrical connection
Note:
Repair and replacement of the built-in miniature relay of transmitter require professional
technicians. It is recommended to connect an external relay (Power Relay) with our
transmitters to activate surrounding equipments.
E
COM
NO
Transmitter
100~240VAC
Relay L1
Relay H2
Relay L2
100~240VAC
Relay H1
COM
NO
NC
NC
COM
NO
COM
NO
COM
NO
Dosing pump
Surge absorber
M
Dosing pump
Surge absorber
M
Dosing pump
Surge absorber
M
Dosing pump
Surge absorber
M
Surge absorber
External relay
Surge absorber
External relay
Surge absorber
External relay
Surge absorber
External relay
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