► PRODUCT INTRODUCTION The two in one online automatic monitoring instrument for total phosphorus and total nitrogen is mainly used to monitor the presence of phosphorus containing compounds in various forms of phosphates and nitrogen-containing chemicals in water in various forms. The automatic monitoring instrument is widely used in pollution monitoring points, surface water monitoring stations, river new faces, and drinking water source monitoring stations 1. The sapphire valve used for core sampling is a sixteen way valve with high wear resistance, resistance to strong acids and alkalis, resistance to organic solvents, strong service life, and high stability; 2. Adopting a specially designed reference method, mild displacement and contamination of the digestion tank do not affect the measured values. 3. It has a waste liquid separation function, which enables the separate discharge of high concentration reaction solution and low concentration cleaning solution; 4. It has a dynamic dilution function and can automatically adjust the dilution count according to the range set by the viewing area. 5. It has built-in quality control functions such as spiked recovery, blank testing, standard sample verification, zero point verification, span verification, parallel sample testing, etc., and can be activated automatically, manually, remotely, etc. for quality control functions: 6. Equipped with automatic fault diagnosis and abnormal information uploading and recording functions, such as component faults, over range alarms, over limit alarms, reagent shortage alarms, etc; 7. Equipped with overheat protection: If the heating temperature exceeds the limit, the heater will turn white and cut off power; 8. After abnormal reset and power failure, the instrument will automatically discharge residual reactants and return to its initial working state. Equipped with power on alarm function, the instrument will generate alarm information when powered on again after power failure; 9. It has the function of analyzing instrument process logs, recording measurement data, and storing alarm information. It records data once per hour for calculation, can store for more than 3 years, and can quickly export data from a USB flash drive;