Hand Off Auto Float Switch

Consider a second example.

Hand off auto float switch.

The water tank motor control automatic u. A two wire single pole single throw float switch the rising action of the float can either close i e turn on a normally open circuit or it can open turn off a normally closed circuit installation scenarios might include a normally open float switch turning on a pump to empty a tank control schematic 2 or a normally closed. When the float rises to an unacceptable level it sets off an alarm to warn you that your tank may be about to overflow. Duplex waterproof control panels with hand off auto switches running lights h o a elapse time meters for each pump plus a visual flashing high water alarm and a pulsating high water alarm horn with silence button in a nema 4x water proof fiberglass enclosure for a variety of sump effluent sewage and water transfer applications.

The switch is shown as a single pole. Hand off automatic controls recognize hand off automatic switches on a schematic diagram. Pinoy teknisyan 6 725 views. Let s start with the most basic float switch.

A modulating valve has a control switch labeled hand off auto located near the valve. A bilge or sump pump has a normally open float switch which turns on the pump when the water level rises above a set point. The float switch detects the level of water in the pump before automatically switching it on. Hand off automatic controls are used to permit an operator to select between automatic or manual operation of a motor.

This video is about the wiring and installation of float switch which is used for water pump motor automatic on off. A float switch prevents flooding. Float switch automatic on off water pump motor control circuit tutorial 13 pinoy teknisyan duration. An air conditioner includes a normally closed float switch which turns off the system if the condensate drain clogs and water overfills the drip pan.

In hand the motor would run continuously and in auto the motor would start and stop by a plc or other controller. In hand the valve can be jogged open or close right at the switch. Nevertheless for the pump to function effectively it requires a float switch. The circuit shown in figure 27 1 permits a motor to be operated by a float switch or to be run manually.

At times the float switch will malfunction and sound the alarm when the tank isn t overflowing. Before calling a service technician try troubleshooting the problem first.