KEZE K301S series of online hexavalent chromium analyzer are independently developed and Online water quality analysis instrument with independent intellectual property rights.
K301S online hexavalent chromium analyzer has multiple advantages such as high scalability, high precision, and high stability. It is a highly intelligent instrument that meets national environmental protection standards and online instrument standards.
| Parameter | Direct measurement of CODCr |
| Measurement Method | Fast digestion-Spectrophotometric method |
| Range | （10-1000-5000） mg/L |
| Range Selection | Automatic or Manual Range Selection |
| Multi-Stream | Up to two 4-20 mA signals |
| Repeatability | ±3% of reading or ±0.2 mg/L P, whichever is greater |
| Stability | ±2% |
| Cycle Time | From 40 minutes, depending on range and application |
| Communication | Modbus RTU, Modbus TCP/IP & Profibus (when the Profibus option is selected, the digital output signals are sent through the Profibus converter with its specific communication protocol). |
| Enclosure Rating | IP65 |
| Sample Inlet Temperature | 2 – 60 °C |
| Ambient Temperature | 5 – 45 °C |
| Humidity | 5 – 85 % (non-condensing) |
| Data Storage | Previous 9999 analysis data on screen in the microcontroller memory and storage of data archive for the lifetime of the analyzer in the SD/MMC card. |
| Display | Maximum pixels 800*600 backlit LCD with LED backlight |
| Power Requirements (Voltage) | AC（220±22）V(customizable) |
| Power Requirements(Hz) | 50/60 Hz |
| Service Interval | 1 month service intervals |
| Dimensions(H x W x D) | 1371 mm×470mm×372 mm |
| Weight | 60 kg |
Stability
Simplicity
High Adaptability
Low Maintenance
1 Stable and efficient data measurement
The K301S series incorporates a PID thermostatic reaction system for precise and reliable regulation of chemical reactions, along with a heating electrode for efficient sample digestion. It also features a robust data processing unit that retains over three years of historical data and supports data recovery after power outages.
2 High-precision sample pump for quantitative delivery
The equipment utilizes a combination of a high-precision sample pump and a nine-way valve. The nine-way valves are connected to multiple inlet tubes for sample, reagent, and air, and the liquid flow paths required for the reaction are switched by motor control. As a result, the quantitative analysis is more precise, the chemical reactions are more thorough, and the detection limits are lower. Additionally, the reduction in the reaction system size leads to a decreased sample requirement and lower reagent consumption.
3 Intelligent operation experience
The equipment employs intelligent range adjustment technology to automatically determine and adapt measurement parameters for water bodies, ensuring accuracy. It also features automatic quality control functions, including zero calibration with standard solutions span calibration with standard solutions, and remote sample verification, meeting national surface water operation standards. Additionally, the K301S series offers a user-friendly interface with simple instructions and intuitive displays, ensuring ease of use and improved human-machine interaction.
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