1/2

3inch

Description:

Waterproof,Heat resistance,pressure resistance,cold resistance.

Easy to install.

Flow range:30-500L/min

Operating Temp:≤80℃,Operating humidity:35%～90%RH

Allow compression:Water pressure 1.75Mpa below

Insulation resistance:>100M OHM

Maximum current:15 mA(DC 5V)

Working voltage range:DC 5V

Storage Temperature:-20～+85℃

Output Waveform:Square Wave,output pulse singal.

ROHS Compliant.

Load capacity:≤10 mA(DC 5V)

The water flow sensor is mainly composed of a brass valve body, a water flow rotor assembly and a Hall sensor. It is installed at the water inlet end of the water heater to detect the water flow rate. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the speed changes with the flow rate. The Hall sensor outputs the corresponding pulse signal and feeds it back to the controller. The device judges the size of the water flow and regulates it.

Features:

1. This product is light and handy in appearance, small in size, and easy to install.

2.The impeller is inlaid with stainless steel beads, which is permanent and wear-resistant.

3.The sealing ring adopts the structure of upper and lower force and never leaks.

4. The Hall element is imported with original packaging and is encapsulated with potting glue to prevent water ingress and never age.

5. Wide application scenarios, widely used in water heaters, drinking fountains, water vending machines, campus credit card machines

Specifications:

Interface size: G1/2, G3/4, G1 G3

Working voltage range: DC5～18V

Water pressure resistance: ≤1.75MPa

Output pulse high level: >DC4.7V (input voltage DC 5V)

Output pulse duty cycle: 50%±10%

Insulation resistance: >100MΩ

Tightness: Close each hole, add 1.7Mpa water pressure test for 1 minute, no leakage and deformation

Flow pulse characteristics

1/2” (11 *Q)Q=L /Min+ 3%,That is 660 pulses per liter of water

3/4” (6.6 *Q)Q=L /Min+ 3%,That is 396 pulses per liter of water

1” F=(8*Q-4)±5%，That is 476 pulses per liter of water;(F is frequency, Q is L/min) Error±5%

Wiring:

Red IN is connected to the positive pole

Yellow OUT signal output line

Black GND connect to negative pole

Precautions:

1. Severe impact and chemical erosion are strictly prohibited

2. Throwing or collision is strictly prohibited

3. Vertical installation, the inclination does not exceed 5 degrees

4. The temperature of the medium should not exceed 120℃