Basic Water Quality Sensor

Digital pH sensor, based on electrochemical principle, uses a linear measuring electrode that is sensitive to changes in the pH value of the medium and a reference electrode with a constant potential to achieve online measurement of pH value. The sensor uses an industrial-grade electrode core with temperature compensation to achieve temperature compensation and digital signal conversion functions, RS485 output, standard MODBUS RTU protocol, and supports various terminal networking.

Digital ORP sensor, based on electrochemical principle, uses a linear measuring electrode that is sensitive to the change of the medium ORP value and a reference electrode with a constant potential to achieve online measurement of the ORP value. The sensor uses an industrial-grade electrode core, built-in digital signal conversion and other functions, RS485 output, standard MODBUS RTU protocol, and supports various terminal networking.

Digital DO sensor, based on the principle of fluorescence quenching, the sensor covers the detection head (fluorescent membrane cap) with a layer of fluorescent material, the LED light source in the sensor emits blue light to the fluorescent material on the surface of the head (fluorescent membrane cap), the fluorescent material is excited to release red light, the higher the dissolved oxygen concentration, the shorter the time from emitting blue light to releasing red light, the dissolved oxygen meter sensor calculates the dissolved oxygen concentration in the medium by using the correlation between the red light release time and the dissolved oxygen concentration (release time). The sensor has built-in temperature compensation and standard RS485 output, which can be connected to various terminals.

Digital DO sensor, based on the principle of fluorescence quenching, the sensor covers the detection head (fluorescent membrane cap) with a layer of fluorescent material, the LED light source in the sensor emits blue light to the fluorescent material on the surface of the head (fluorescent membrane cap), the fluorescent material is excited to release red light, the higher the dissolved oxygen concentration, the shorter the time from emitting blue light to releasing red light, the dissolved oxygen meter sensor calculates the dissolved oxygen concentration in the medium by using the correlation between the red light release time and the dissolved oxygen concentration (release time). The sensor has built-in temperature compensation and standard RS485 output, which can be connected to various terminals.

Digital conductivity sensor, based on electrode potential method, uses industrial-grade electrodes and anti-polarization 4-electrode design. The conductivity sensor developed based on the digital sensing platform uses industrial four-level electrodes, and the sensor integrates automatic temperature compensation, digital signal conversion and other functions, with RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital conductivity sensor, based on electrode potential method, uses industrial-grade electrodes. The conductivity sensor developed based on the digital sensing platform uses a two-pole conductivity electrode. The current can be measured by applying voltage to the two poles. The conductivity can be calculated through the voltage/current measurement value and the water sample temperature compensation algorithm. With RS485 output, standard MODBUS protocol, and support for various terminal networking.

The digital turbidity sensor is based on the 90-degree infrared scattering method of the ISO7027 standard. It measures the turbidity value of the sample according to the scattered light intensity of suspended particles in the water sample. The sensor uses a near-infrared LED as a light source, and even if there is color in the sample, it will not affect the measurement results. The unique protective structural design of the sensor detection surface can protect the sensor detection window to the greatest extent and avoid accidental collision damage to the sensor measurement surface during installation and use.

The digital turbidity sensor is based on the 90-degree infrared scattering method of ISO7027 standard, and measures the sample turbidity value according to the scattered light intensity of suspended particles in the water sample. The sensor uses an LED infrared scattering light source (860nm), which will not affect the measurement results even if there is color in the sample. The unique protective structural design of the sensor detection surface can protect the sensor detection window to the greatest extent and avoid accidental collision damage to the sensor measurement surface during installation and use.

The digital suspended solids sensor is based on the 90-degree infrared scattering method of the ISO7027 standard. It measures the suspended solids value of the sample according to the scattered light intensity of suspended particles in the water sample. The sensor uses a near-infrared LED as a light source, and even if there is color in the sample, it will not affect the measurement results. The unique protective structural design of the sensor detection surface can protect the sensor detection window to the greatest extent and avoid accidental collision damage to the sensor measurement surface during installation and use.

The digital infrared turbidity sensor uses 880nm infrared light double beam scattered light to measure sludge concentration, which can be used to measure high-concentration sludge wastewater. The measuring probe has a built-in 45° LED light source, which emits 880nm near-infrared light to the sample. After the light beam is scattered by suspended particles, it forms scattered light at 90° to the incident light, which is detected by the detector and calculated to obtain the sample turbidity. When measuring sludge concentration, scattered light at 140° to the incident light is formed and detected by the rear detector in this direction. Then the suspended matter detector calculates the signal strength detected by the front and rear detectors to give the sludge concentration value.

Digital colorimetric sensor, developed based on the transmitted light method, uses dual-beam measurement to automatically compensate for turbidity interference. It can measure the color of the medium and the change of color. As an online sensor, it can accurately measure the concentration of colored substances. The measurement results have good repeatability, linearity and extremely high resolution.

The digital transparency sensor is developed based on the transmitted light method. It measures the light radiation intensity in the visible light band and calculates the transparency of the water body. The sensor uses dual detectors to compensate for the effect of light source attenuation on the measurement; it comes with a cleaning brush to prevent impurities and microorganisms from attaching; it has RS485 output, standard MODBUS protocol, and supports various terminal networking.