Shanghai Haozhuang Instrument Co., Ltd. develops the Kazakhstan nitrogen analyzer of the Hao Zhuang (LNB) brand, which is energy-saving and environmentally friendly, leading the country. Professional manufacturing is more secure and affordable Control system: l. The main control system adopts advanced PLC control platform, and the system control is reliable and accurate. 2. Intelligent cooling water automatic opening and closing system: when steam is generated, the cooling water is automatically turned on, and when no steam is generated, the cooling water is automatically turned off, saving the cooling water to the greatest extent and avoiding unnecessary caused by the operator negligently forgetting to turn off the water source Loss. 3. Warm-up function: the steam cylinder temperature is always maintained at 80 ℃ when the price is on or in the standby state. When measurement and analysis are required, steam can be quickly generated to shorten the waiting time. 4. Automatic dilution function to prevent excessive reaction of strong acid and alkali: Before adding alkali, dilute the strong acid sample by adding appropriate amount of distilled water to prevent strong acid from reacting strongly with strong alkali. 5. Automatic cleaning titration procedure: prevent the non-neutral residual liquid in the titration cup from affecting the low content and blank samples, and improve the system accuracy and reliability. 6. Unique automatic discharge and centralized collection of digestion tube waste liquid: after titration, the digestion tube waste liquid will be automatically discharged and collected centrally, the degree of automation is greatly improved, reducing the labor intensity of the staff and solving the analysis of waste liquid The problem of centralized collection and processing. Comply with good laboratory management standards. 7. Automatic discharge and centralized collection of titration waste liquid: Self-priming pump type titration waste liquid automatic emptying setting makes the titration cup waste liquid evacuation faster and more thorough, and the same collection port as the waste liquid of the digestion tube makes the pipeline The connection is simpler and more practical. 8. All pipelines of the instrument adopt imported materials and fully sealed structure to prolong the service life of the instrument. Safety protection system: 1. Absence protection of digestion tube: the system does not heat when the digestion tube is not placed; 2. Absence protection of safety door: the system does not heat when the safety door is not pulled down; When the steam generator is short of water or the water level is insufficient, the system will automatically fill water to avoid water shortage and dry burning; 4. Steam overpressure protection: When the steam generator system pressure is too high due to blockage, malfunction or abnormal steam circuit, the system will Automatically stop working and give an alarm prompt; 5. Leakage protection: When the system has a leakage or the operator accidentally gets an electric shock, the system will cut off the power and stop the power supply to ensure the safety of the operator.
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Kjeldahl nitrogen analyzer friendly control and safety alarm system