Remote Control Water Pump

12V Latched Mode Remote Control for Float Switch Controlling Water Pump

Question from customer:

When the tank is empty my float switch makes contact and stays in this mode till the tank is full.

What I need is for the transmitter to activate the receiver and hold it in the on position till the float switch interrupts the transmitter and releases the receiver. I need a receiver which is only activated as long as the transmitter sends a signal. Or I need a way to make the transmitter send a signal when the float switch makes contact, then interrupts this signal and sends a second signal when the float switch interrupts contact.

water-tank

Float_switch

Answer:

We recommend the model of normally open latched 2000m remote controller (S1L-DC12-ANT2 & CB-2N). The receiver is with magnetic antenna and only one working mode—latched mode. It is activated the 12V power. The transmitter is designed with novelty. There are two wires extending from transmitter. The triggering method is connection and disconnection of two wires. When two wires are connected, “ON” signal will be sent out. When two wires are connected, “OFF” signal will be sent out.

1

Wires on the transmitter should be connected to the contacts of float switch.

transmitter circuit

The normally open contacts B&C of receiver should be connected to the water pump.

receiver circuit

When the tank is empty, the contacts of float switch are closed, the transmitter is triggered and then transmits an rf signal “ON” to activate the receiver. After the receiver receives the signal, contacts B&C are closed; the pump starts to work.

When the tank is full, the contacts of float switch are cut, the transmitter is triggered and then transmits an rf signal “OFF” to deactivate the receiver. After the receiver receives the signal, contacts B&C are cut; the pump stops working.