ESM-YF-DN40 1.5 inch DN40 turbine water flow meter for swimming pool water treatment
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ESM-YF-DN40 1.5 inch DN40 turbine water flow meter for swimming pool water treatment
Features:
The product is light and flexible in appearance, small in size, plug and play, easy to install.
The impeller is equipped with a stainless steel shaft, which is more powerful and prolongs the service life.
The sealing ring adopts the upper and lower force structure and never leaks.
The Hall element is imported and isolated from water to prevent water ingress and never age.
All raw materials are in compliance with ROHS testing standards
Product introduction:
The water flow sensor is mainly composed of a plastic valve body, a water flow rotor assembly and a Hall sensor.
It is installed in various coffee machines, water dispensers, and water inlets of electrolyzers to detect the influent flow. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the rotational speed changes with the flow rate. The Hall sensor outputs the corresponding pulse. The signal is fed back to the controller, and the controller determines the magnitude of the water flow and performs regulation.
Precautions for use:
Severe impact and chemical attack are strictly prohibited.
It is strictly forbidden to throw or collide.
Install the inlet and outlet water according to the arrow on the product.
The temperature of the medium should not exceed 120 degrees.
technical parameters
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Scope of application: |
Suitable for water heaters, water treatment systems |
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Basic parameters |
lowest rated working voltage |
DC4.5V-12V |
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Maximum operating current |
15 mA (DC 5V) |
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Operating voltage range |
DC 4.5~12 V |
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load capacity |
≤10 mA (DC 5V) |
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Operating temperature range |
≤80℃ |
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Humidity range |
35% to 90% RH (no frosting) |
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Allowable withstand voltage |
Water pressure below 1.75Mpa |
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Storage temperature |
-25~+80℃ |
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Save humidity |
25%~95%RH |
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skills requirement |
Output pulse high |
>DC 4.5 V (input voltage DC 5 V) |
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Output pulse low |
<DC 0.5 V (input voltage DC 5 V) |
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Accuracy(flow--pulse output) |
10~200 L/min±5% |
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Output pulse duty cycle |
50±10% |
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Output rise time |
0.04μS |
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Output fall time |
0.18μS |
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Flow-pulse characteristics |
Horizontal test pulse frequency (Hz) = [0.5 * Q] ± 5% (level test) (Q is flow L / min) |
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Shock proof |
The product is packed well, free fall from the 50cm height X, Y, Z direction to the concrete surface without abnormalities. Accuracy changes within 10%. |
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Insulation resistance |
The insulation resistance between the Hall sensor and the copper valve body is 100 MΩ or more. (DC 500V) |
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Heat resistance |
It is placed in the environment of 80±3°C for 48h, and returns to normal temperature for 1-2h without abnormality, and the parts have no crack, slack, expansion and deformation, and the precision changes within 10%. |
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cold resistance |
After being placed in the environment of -20±3°C for 48h, there is no abnormality when returning to normal temperature for 1-2h, and the parts have no crack, slack, expansion and deformation, and the precision changes within 10%. |
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Moisture resistance |
After being taken out in an environment of 40±2° C. and a relative humidity of 90% to 95% RH for 72 hours, the insulation resistance is 1 MΩ or more. |
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Drawing strength |
Applying a pulling force of 10 N for 1 minute on the lead wire, no looseness or breakage, and no change in performance. |
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Durability |
At normal temperature, 0.1 MPa water pressure is introduced from the water inlet to turn on 1 S, and 0.5 S is turned off. The test was conducted 300,000 times without abnormality. |
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Way out:
Red : IN is connected to the positive pole
Yellow : OUT signal output line
Black : GND is connected to the negative pole
Horizontal test pulse frequency (Hz) = [0.5 * Q] ± 5% (level test) (Q is flow L / min)
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