Plastic PP material, switching signal,apply to water dispenser,humidifier,water air conditioning, air conditioning fan etc.
A float switch may be a sort of level sensor, a tool wont to detect the extent of liquid within a tank. The switch could also be wont to control a pump, as an indicator, an alarm, or to regulate other devices.
One sort of float switch uses a mercury switch inside a hinged float. Another common type may be a float that raises a rod to actuate a microswitch. One pattern uses a reed switch mounted during a tube; a float, containing a magnet, surrounds the tube and is guided by it. When the float raises the magnet to the reed switch, it closes. Several reeds are often mounted within the tube for various level indications by one assembly. Some float switches contain a two-stage switch. As liquid rises to the trigger point of the primary stage, the associated pump is activated. If the liquid continues to rise (perhaps because the pump has failed or its discharge is blocked), the second stage are going to be triggered. This stage may cut the source of the liquid being pumped, trigger an alarm, or both.
SEN-PPI135 PP technical parameters include: Used medium: Water or liquid that has no damage to the float,0- 60℃
Switching power: 10W, normally open,(NO). Voltage/electric current: DC2000V,≤0.5A. Rated voltage: ≤DC24V(for high voltage use, access intermediate relay). Insulation resistor: 108Ω. Switching life: 108times. Switching response time: 0.2ms. Fix screw: M10, floating diameter Φ 24mm. Installation method: Vertical entry 35mm
where level must be sensed inside a pressurized vessel, often a magnet is employed to couple the motion of the float to a switch located outside the pressurized volume. In some cases, a rod through a packing box are often wont to operate a switch, but this creates high drag and features a potential for leakage. Successful float switch installations minimize the chance for accumulation of dirt on the float that might impede its motion. Float switch materials are selected to resist the deleterious effects of corrosive process liquids. In some systems, a properly selected and sized float can be used to sense the interface level between two liquids of different density.