Ultrasonic Water Level Sensor can be used in two-wire, three-wire or four-wire systems.
The two-wire system is: power supply and signal output sharing;
The three-wire system is: the power supply circuit and the signal output circuit are independent. When using DC 24V power supply, a 3-core cable can be used, and the power supply negative terminal and the signal output negative terminal share a core wire;
The four-wire system is: When using AC 220v power supply, or when using DC 24V power supply, the power supply circuit is completely isolated from the signal output circuit, a 4-core cable should be used. DC or AC power supply, with 4~20mADC, high and low level switching output.
Range: 0-50 meters, a variety of forms are available, suitable for a variety of corrosive, chemical applications, high precision, remote signal output, PLC system monitoring.