Humidifier,air condition fan,steam, protection level control
1.PE19 Steam class level control water level switch liquid optical level sensor
2.liquid level control
3.non contact sens
PE19 infrared photoelectric liquid level sensor
1)No mechanical moving parts, high reliability
2)Small size, can be installed in any direction
3)High precision level control
1) humidifiers, heaters 2) pumps, bathtub, sanitary ware, medical equipment 3) Steam class level control and other needs of electrical appliances, equipment, etc
Size & Wiring
Liquid level state
Signal port voltage Output(V)
Above the critical level
Below the critical level
Note: 1. detected when the liquid is water, the water level is lower than the critical level, water vapor, water vapor or water droplets in the sensor Surface of the body assembly, thereby leading to the signal output voltage decreases. Therefore, in practical application, taking into account the water vapor, water vapor, water droplets or affect, the set value of the threshold voltage level VT, that is, if greater than the output voltage signal terminal VT, it is determined that the level is below the critical level, the output voltage signal terminal If less than VT, the level is higher than the critical level is determined. VT general value of 0.25-0.5V, specific values according to water vapor, water vapor or droplets generated and the impact of process degree determined. When the liquid to be detected for the other, it will also be affected by the droplet, it is also considered press law. 2 Consider the level of fluctuation characteristics, image stabilization to join in the program logic. 3 This section level sensor is not waterproof, the entire probe can not be placed in the liquid used. 4. Actual use, the level sensor probe surface can not have too much dirt, and if so, please immediately cleaned, Cleaning the surface of the detection process can not damage it.
Use and testing
The level sensor is installed above one way, and then connect the following circuit, the output signal terminal condition consistent with the level of the voltage signal, this signal is used as the liquid level control signal access MCU (micro controller) A / D (analog when digital converter) ports, when the level exceeds a critical level and flooded the sensor body, then the signal output is low voltage, when the liquid level is below the critical level and reveal the sensor body, then the signal output is high voltage.
2.All of our products can be customized,OEM service offered
Xi 'an ESM Tech Co. Ltd launch its journey as a quality products manufacturer. We are currently producing precision series of products like ultrasonic sensors, temperature sensors, load cells, stress sensors, displacement sensors, proximity sensors, material level monitoring meters, and flow meters etc.
A core of highly profession and experience engineers are engaged with us for research and development process. Our range of equipment boundary expanded recently to GPS tracking equipment that able to detect vehicles even pets and moving objects.
Our website: http://www.gpsandsensor.com
Note:Please confirm the details while ordering
Any questions or demands, please do not hesitate to contact us.
PE17 photoelectric liquid level sensor switch for Humidifier