Jntech JNP75KH - Water Level Sensor Connection

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VCC
Positive of VCC.
COM
Negative of VCC.
P_IN
Input of pressure signal.
DG_IN
Dry protection signal input terminal of sensor
SY_IN
Overflow protection signal input terminal of sensor
COM
Common terminal of water level sensor
SW_IN
Input of switch signal.
SW_OUT
Output of switch signal.
COM
Negative of switch signal.
6.6.2 Water level sensor connection
Two kinds of water level sensor you can select are shown below:
Sensor A Sensor B
Figure6-6 Sensor
Notice！
If you select overflow protection water level sensor, you need to set the value of
“OF-F”, the LCD menu ”Settings” "Para Set" "OF-F" to modify to
“ON”. The setting method with reference to “8.3.5 Key Parameters of the
System Set”.