The liquid level float switch in water treatment systems serves the following main functions:

https://www.sh-jieenlu.com/en/product/3/Float-switch-Liquid-level-float

1. Level Monitoring: The float switch can monitor the water level changes in tanks or pools in real time. By detecting the floating motion of the float, it can determine whether the water level has reached the set high or low points.

 2. Automatic Control: When the water level reaches the preset high or low points, the float switch will automatically open or close the corresponding valves or pumps, allowing for automatic water level control. This helps maintain the normal operation of the system, preventing the water level from becoming too high or too low.

 3. Overflow and Dry Run Protection: When the water level is too high, the float switch can cut off the power to the pump to prevent overflow. Conversely, when the water level is too low, it can prevent the pump from running in a dry state, protecting the equipment from damage.

 4. Efficiency Improvement: By automating water level control, the float switch can enhance the efficiency of the water treatment system, reducing the need for manual intervention and lowering operational costs.

In summary, the liquid level float switch is an essential device for ensuring the safe, stable, and efficient operation of water treatment systems.

https://www.sh-jieenlu.com/en/product/3/Float-switch-Liquid-level-float

The steps to set up a liquid level float switch for overflow and dry run protection are as follows:

1. Select the Appropriate Float Switch

 • Type: Choose a float switch type that suits the needs of your water treatment system, such as mechanical float switches or electronic float switches.

 • Material: Ensure that the float material is suitable for the liquid being handled to prevent corrosion or damage.

2. Determine Level Control Points

 • High Level Setting: Identify a high-level point, typically the safe water level of the tank. When the water reaches this point, the float switch should cut off the power to the pump to prevent overflow.

 • Low Level Setting: Identify a low-level point, usually the minimum operating water level for the pump. When the water drops to this point, the float switch should cut off the power to prevent dry running.

3. Install the Float Switch

 • Position: Install the float switch on the side of the tank or pool, ensuring it can float freely without obstruction.

 • Height: Based on the determined high and low-level settings, install the float switch’s bracket or guide to ensure it operates within the appropriate height range.

4. Connect the Circuit

 • Power Connection: Connect the output of the float switch to the power line of the pump to enable automatic control of power based on water level changes.

 • Protection Circuit: Consider adding a relay or contactor to enhance the load capacity of the switch and protect it.

5. Debugging and Testing

 • Function Testing: Before running the system, conduct tests to ensure the float switch can accurately detect water level changes and correctly cut off power at high and low levels.

 • Monitor Operation: Observe the float switch’s response during actual operation to ensure it functions correctly under various water level conditions.

6. Regular Maintenance

 • Inspection and Cleaning: Regularly check the operational status of the float switch and clean the surface of the float to prevent dirt or debris from affecting its buoyancy.

 • Function Testing: Periodically test the switch’s functionality to ensure it operates correctly when needed.

By following these steps, you can effectively set up the liquid level float switch to achieve overflow and dry run protection, ensuring the safe and efficient operation of the water treatment system.

https://www.sh-jieenlu.com/en/product/3/Float-switch-Liquid-level-float

The angle of the micro switch in a liquid level float switch significantly affects its sensitivity in the following ways:

1. Sensitivity Adjustment

 • Angle Impact: The angle of the micro switch determines how sensitive the float switch is to changes in water level. A small angular change can cause the switch to trigger earlier or later, affecting its response time and overall sensitivity.

 • Adaptability: By adjusting the installation angle of the micro switch, the switch can be tailored to meet different water level requirements for more precise control.

2. Trigger Threshold

 • High and Low Trigger Points: The angle at which the float moves during rising or falling water levels affects the trigger threshold of the micro switch. If the switch is installed too flat or too steeply, it may prevent the float from effectively triggering the switch when the water level approaches the set point, impacting the accuracy of water level control.

3. Mechanical Friction

 • Float Movement: The angle setting of the micro switch influences the trajectory of the float. An improper angle may increase friction between the float and its mounting bracket or other components, leading to reduced sensitivity and delayed response.

4. Environmental Adaptability

 • External Factors: In some situations, external factors (such as liquid flow or turbulence) may affect the float’s movement. A properly adjusted angle for the micro switch can enhance its adaptability to environmental changes, ensuring it maintains sensitivity under various conditions.

5. Adjustment and Calibration

 • Regular Calibration: Depending on practical application needs, it is important to periodically check and adjust the angle of the micro switch to ensure it operates in optimal working condition, thereby improving sensitivity and reliability.

In summary, the angle of the micro switch in a liquid level float switch has a significant impact on its sensitivity. Proper angle adjustment can ensure more accurate water level control and stability in system operation.