Pyxis DW-2000 Series Multi-Parameter Online Analyzer

        In industries such as water treatment plants (tap water), drinking water pipe networks, secondary water supply, and swimming pools, turbidity, free chlorine/total chlorine/chlorine dioxide, and pH are often the most critical water quality parameters for online monitoring. To meet users’ actual needs, Pyxis has integrated cutting-edge R&D technologies to develop the DW-2000 Series Multi-Parameter Online Analyzer.

        For free chlorine detection, users can choose between the colorimetric method or electrode method. For installation, either cabinet-mounted or wall-mounted configurations are available—different structures suit different application scenarios, providing maximum flexibility for users’ selection.

        The analyzer occupies a small installation area, features simple operation and maintenance, and has low professional requirements for operators, making it highly suitable for many non-industrial scenarios. It comes standard with a 3G/4G remote module: on-site monitoring data can be uploaded to the cloud server in real time, allowing management and maintenance personnel to conveniently view on-site data remotely, ensuring worry-free operation.

Typical Applications

• Tap water plant effluent

• Drinking water pipe networks

• Secondary water supply

• Sanitary treatment systems

Instrument Features

• Integrates cutting-edge R&D technologies to achieve high-precision and high-stability measurement of parameters including turbidity, free chlorine/total chlorine/chlorine dioxide, pH, and temperature.

• The turbidity sensor uses a warm white LED as the detection light source, complying with the USEPA 180.1 standard (ISO 7027.1 standard optional). When paired with the FR-200 flow cell, it achieves a maximum resolution of 0.001 NTU and ensures long-term stable operation.

• Two free chlorine detection methods optional: colorimetric method and electrode method. The free chlorine electrode adopts an innovative 3-parameter composite probe, enabling a single probe to output three parameters: free chlorine, pH, and temperature. Meanwhile, the free chlorine module also has built-in dual-parameter compensation (temperature and pH); in addition, a unique algorithm significantly reduces the impact of temperature and flow rate on free chlorine and pH values.

• Colorimetric method for free chlorine/total chlorine/chlorine dioxide: specifically designed for unattended applications. The free chlorine measurement interval is adjustable, and reagent consumption is low—with a 10-minute measurement interval, the reagent service life is no less than one month.

• Electrode method for free chlorine: enables a membrane-free, electrolyte-free, and consumable-free system. When used in tap water or drinking water conditions, it requires extremely low daily maintenance, ensuring peace of mind for on-site use.

• Before delivery, the analyzer undergoes a pressurized aging test and pre-calibration, and is shipped safely with protective solution.

• Self-cleaning flat electrode design for easy maintenance and cleaning. The well-designed FR-200 dual-probe flow cell provides excellent bubble and impurity removal effects, easily handling harsh water quality and greatly extending the sensor’s maintenance cycle. Additionally, the FR-200 dual-probe flow cell has a large buffer capacity and strong resistance to pressure fluctuations, making it suitable for various installation sites.

• According to different on-site conditions, cabinet-mounted or wall-mounted installation can be selected; both are integrated structures, featuring easy installation and small footprint. They can continuously measure three water quality parameters: free chlorine/total chlorine/chlorine dioxide, turbidity, and pH.




• Flow cell design: the minimum required inlet pressure is only 0.05 MPa, suitable for low-pressure applications such as end-of-pipe networks and pre-pump sampling in secondary water supply.

• Remote diagnosis and parameter setting are supported; permission management can be implemented according to different users.