BL-YW-SROL-42 Photoelectric Liquid Level Sensor

01.When the detected liquid is water and the water level is below the critical level, water vapor, steam, or water droplets will gather on the surface of the sensor body, leading to a decrease in signal output voltage. So in practical applications, considering the influence of water vapor, water vapor, or water droplets, the liquid level threshold voltage is set to VT. If the output voltage of the signal end is greater than VT, the liquid level is judged to be below the critical liquid level, and if the output voltage of the signal end is less than VT, the liquid level is judged to be above the critical liquid level. The general value of VT is 0.25-0.5V, and the specific value is determined based on the generation and degree of influence of water vapor, water vapor, or water droplets. When the detected liquid is other, it will also be affected by liquid droplets, so this method is also considered.

02. Considering the fluctuation characteristics of the liquid level, anti shaking logic should be added to the program.

03. The wiring part of this liquid level sensor is not waterproof, and the entire probe cannot be used in liquid.

04. In actual use, the surface of the liquid level sensor probe should not have too much dirt. If there is any, please clean it immediately. During the cleaning process, the detection surface should not be damaged.