Description
Working principle:
The water flow sensor is a sensor that uses the Hall effect of the Hall element to measure magnetic physical quantities. The water flow sensor is mainly composed of a valve body, a water flow rotor assembly, a steady flow assembly and a Hall sensor. It is installed on the water inlet of the water heater to detect the size and on-off of the inlet water flow. A load resistor is connected in series to the positive pole of the Hall element, and a 5V DC voltage is applied at the same time to make the direction of the current orthogonal to the direction of the magnetic field. When water pushes the magnetic rotor to rotate through the turbine switch housing, a rotating magnetic field with different magnetic poles is generated, the magnetic induction line is cut, and high and low pulse levels are generated. Since the frequency of the output pulse signal of the Hall element is proportional to the rotation speed of the magnetic rotor, the rotation speed of the rotor is also proportional to the water flow, and it starts according to the size of the water flow.
Parameter information:
1. Environmentally friendly design, food-grade POM material, compact and practical, adjustable at any angle
2. The Hall element is imported from Japan, which is sensitive and reliable;
3. Working voltage: DC4.5-18V, rated voltage DC5V; output voltage (rated DC5V): high level above 4.5V, low level below 0.5V; pulse output duty cycle 50±10%;
4. A small water flow sensor designed for small flow and medical machinery, and can also be used in electrical appliances and mechanical equipment.
5. Wiring mode: red wire + positive pole, black wire-negative pole, yellow wire = pulse signal
6. Instantaneous flow and pulse comparison table:
Lead length: 25CM (3P terminal XH2.54)
Specification
Upgrade Parts/Accessories : Frame
For Vehicle Type : Airplanes
Use : Vehicles & Remote Control Toys
RC Parts & Accs : Antennas
