Water Quality Monitoring Sensor Series Products (Part One)

Digital PH Sensor-ZW-PH1006

 

Product introduction:      

The digital pH sensor is used to accurately measure the pH value of the solution, that is, the acidity and alkalinity of the solution. It is based on a glass electrode and can provide accurate pH measurement, usually with an accuracy of ±0.01pH unit. The sensor outputs a digital signal and has a built-in temperature sensor with good stability and repeatability.

Application areas:

Aquaculture water bodies, drinking water sources, sewage treatment plant treatment process and discharge port water quality monitoring, industrial process water quality monitoring, surface water/groundwater monitoring, other industrial wastewater treatment process and discharge port monitoring installations, etc.

Performance parameters:

⭐Measurement principle: glass electrode method;

⭐Measuring range: 0~14PH;

⭐Accuracy: <0.1PH;

⭐Resolution: 0.01PH;

⭐Repetition rate: <0.1PH;

⭐Drift: <0.3PH;

⭐Temperature compensator error: <0.1PH;

⭐Response time: <15s;

⭐Working temperature: 0-50℃;

⭐Sensor size (DxL): Φ34X225;

⭐Shell material: POM;

⭐Protection level: IP68, 6bar.

Digital Dissolved Oxygen Sensor-ZW-D01006

 

Product introduction：

The digital dissolved oxygen sensor is an instrument used to measure the dissolved oxygen content in water samples. It is based on electrochemical principle and uses platinum electrodes for the reduction reaction of oxygen molecules. The concentration of dissolved oxygen is determined by measuring the current generated when oxygen molecules undergo reduction reaction on the electrode surface.

Application areas:

Widely used in sewage treatment process monitoring, environmental monitoring, aquaculture, scientific research and other fields.

Performance parameters：

⭐Measurement principle: fluorescence method;

⭐Measuring range: 0~50mg/L (ppm);

⭐Accuracy: 0-100% <±1%;100-200% <±2%;>200% (20-50ppm): 2~15%;

⭐Resolution: 0.01mg/L;

⭐Repetition rate: <0.3mg/L;

⭐Drift: <0.3mg/L;

⭐Temperature compensator error: <0.3mg/L;

⭐Response time: <45s;

⭐Working temperature: 0-50℃;

⭐Working atmospheric pressure: 40-115 kPa ;

⭐Sensor size (DxL): Φ34X225;

⭐Shell material: POM;

⭐Protection level: IP68.6bar.

Digital Conductivity Sensor-ZW-Cond1006

 

Product introduction：

The digital conductivity sensor is an instrument used to measure the conductivity in a solution or water, based on the conductivity of ions in the solution. When current passes through a solution containing ions, the movement of ions produces conductivity. The conductivity is proportional to the concentration and type of ions in the solution. The built-in temperature sensor automatically adjusts the measurement results to compensate for the effect of temperature on conductivity.

Application areas:

Widely used in fresh water monitoring, industrial heating/cooling, drinking water quality analysis, water treatment, chemical industry, food processing, environmental monitoring and other fields.

Performance parameters：

⭐Measurement principle: quadrupole conductivity;

⭐Measuring range: 1μS/cm-100mS/cm or 1μS/cm-200mS/cm:

⭐Accuracy: < 1%;

⭐Resolution: 0.01/0.1/1μS/cm (depending on the range);

⭐Repetition rate: <1%;

⭐Drift: <1%;

⭐Temperature compensator error: <1%;

⭐Response time: 10s;

⭐Working temperature: 0-50℃

⭐Sensor size (DxL): Φ34X225;

⭐Housing material: POM;

⭐Protection level: IP68, 6bar.

Digital Turbidity Sensor-ZW-Turb1006

 

Product introduction：

The digital turbidity sensor is an instrument used to measure the concentration of suspended particles in water samples. Usually these particles may be composed of sediment, microorganisms, algae or other organic or inorganic substances, which affect the transparency of water. It works based on the principle of light scattering. The sensor emits light through the water sample, and the suspended particles in the water sample scatter the light. By measuring the intensity of the scattered light, the turbidity of the water sample can be calculated.

Application areas:

Used in water quality monitoring, water treatment, food processing, environmental monitoring and other fields.

Performance parameters：

⭐Measurement principle: scattering method;

⭐Measuring range: turbidity: 0~4000NTU;

⭐Suspended solids (SS): 0~8000mg/L;

⭐Accuracy:: <5%;

⭐Resolution: 0.01NTU; 0.01mg/L;

⭐Repetition rate: <0.1NTU;

⭐Drift: <0.3NTU;

⭐Temperature compensator error: < 0.1NTU;

⭐Response time: <15s;

⭐Working temperature: 0-50℃;

⭐Sensor size (DxL): ф34X225;

⭐Housing material: titanium alloy;

⭐Protection level: IP68, 6bar.

ZW-COD1006 UV254 COD/TOC Sensor

 

Product introduction：

Many organic substances dissolved in water have an absorption effect on external light. Therefore, by measuring the degree of absorption of these organic substances to 254nm wavelength ultraviolet light, the total amount of organic pollutants in the water can be measured. The UV254COD/TOC online analyzer uses two light sources, one 254nm ultraviolet light and one 365nm reference light, which can automatically compensate for the attenuation of the light path and the influence of turbidity, thereby achieving more stable and reliable measurement values.

Performance parameters：

⭐Measurement principle: dual beam absorbance method:254nm (COD detection);365nm reference light (eliminating the interference of suspended matter);

⭐Measurement parameters: Simultaneous measurement of CODCr, TOC, turbidity and temperature; BOD, CODMn and other parameters can be converted;

⭐Measurement optical path: 6mm or 1mm;

⭐Range (6mm): CODcr: 0-500mg/L; TOC: 0-250 mg/L (both using potassium hydrogen phthalate solution, KHP); turbidity: 0-500NTU;

⭐Range (1mm): CODcr: 0-3000mg/L; TOC: 0-1500 mg/L4 (both using potassium hydrogen phthalate solution, KHP); turbidity: 0-3000NTU;

⭐Accuracy: CODCr and TOC are both 5%; turbidity accuracy is 3%;

⭐Resolution: CODCr is 0.01mg/L; TOC is 0.1mg/L;Turbidity resolution is 0.1NTU;

⭐Response time: 1s;

⭐Light window cleaning method: automatic cleaning with standard cleaning brush;

⭐Sensor compensation: supports automatic compensation of temperature and turbidity;

⭐Temperature application range: 0-45℃;

⭐Protection level: IP68; Maximum pressure: 1 bar;

⭐Calibration method: 1 or 2 points;

⭐Communication method: RS485 (Modbus RTU);

⭐Power supply voltage: 12V DC+5%;

⭐Power consumption: ≤0.6W (when not cleaning);

⭐Cable length: 10m (customizable);

⭐Housing material: POM and stainless steel 316L;

⭐Installation method: immersion installation;

⭐Probe size (DxL): φ50mmx214mm.

Digital Ammonia Nitrogen Sensor-ZW-NH3-N1006

Product introduction:

The ammonia nitrogen sensor uses an ion-selective electrode and has a membrane with a specific type of ion permeability. The composite sensor composed of this selective membrane and electrolyte can be used to measure the redox potential of the required specific ions (for example, NH4+).

Application areas:

Sewage treatment plant treatment process and discharge port water quality monitoring, industrial process water quality monitoring, surface water/groundwater monitoring, other industrial wastewater treatment process and discharge port monitoring installations, etc.

Performance parameters:

⭐Measurement principle: ion selective electrode method;

⭐Measuring range: 0.1~100mg/L;

⭐Accuracy: ≤10% of the measured value or 0.1mg/L, whichever is greater;

⭐Resolution: 0.1mg/L;

⭐Repetition rate: <0.1mg/L;

⭐Drift: <0.3mg/L;

⭐Temperature compensator error: <0.1mg/L;

⭐Response time: <15s;

⭐Working temperature: 0-50℃;

⭐Sensor size (DxL): ф34X225;

⭐Housing material: POM;

⭐Protection level: IP68, 6bar.