I. Overview: Nitrogen is colorless, odorless, non-toxic, non-flammable, and non-explosive, making it extremely safe for use. Its molecular structure is highly stable, typically resistant to chemical reactions with other substances, and exhibits inertness, widely used as a protective gas. This series of nitrogen generators utilizes the pressure swing adsorption principle, separating oxygen from nitrogen in the air through carbon molecular sieve to produce nitrogen. It boasts simple process flow, minimal space requirements, low investment, ease of operation, convenient maintenance, and other advantages. The purity of the nitrogen produced can be adjusted according to actual needs, and the equipment has good adaptability. The working principle is PSA nitrogen generation, using high-performance CMS carbon molecular sieve AB towers for alternating continuous nitrogen production. The PGN-30L high-purity nitrogen generator is suitable for various nitrogen blowers worldwide and is widely used in laboratories for analysis and testing in the oil, chemical, coal, food, beverage, environmental protection, indoor testing, sanitation, quarantine, electricity, public security, and universities. The high-purity nitrogen generator is powered by an air compressor, featuring dual pumps, self-designed vibration and heat insulation measures, an automatic drainage system, a cooling system, a gas purification and filtration system, and an internal overpressure safety protection device. The gas storage tank is made of stainless steel material, and the control system has dual-stage protection against overpressure and overcurrent. A pressure stabilizing and throttling device is connected in the nitrogen gas circuit, ensuring the quality of the gas used. The operation is simple, reliable, and ensures the stability of continuous operation. The PGN-30L high-purity nitrogen generator is our company's flagship product, gaining increasing customer recognition. The gas circuit's main components, such as solenoid valves and pressure regulators, use imported valves to ensure stable operation under high pressure and high flow conditions, positioning this product in the market. This instrument is highly suitable for large-volume supply, with increased compressor power and separation materials. Our company has mature technology and processes to handle continuous heavy-duty operations. Nitrogen generators have become a substitute for cylinders due to their mature technology, ease of use, low production costs, and high purity, and are increasingly chosen by laboratories, completely phasing out the expensive and dangerous high-pressure cylinders from laboratories. II. Working Conditions and Usage Environment: 1. Requirements for Compressed Air Source: - Compressed Air Pressure: 0.6-0.8MPa - Compressed Air Dew Point: <-10℃ - Compressed Air: Oil-free and water-free qualified compressed air - Compressed Air Oil Content: <0.01PPM - Note: Regularly check the automatic drainage to ensure normal operation, as failure to do so can significantly affect the nitrogen generator's lifespan. 2. Environmental Requirements for Use: - Environmental Temperature: 5-40℃ - Machine Operating Temperature: 20-25℃ - Relative Humidity: ≤80% - Power Supply: 220V 50HZ - Power: 1150W - Weight: 130KG - Dimensions: 700*600*1100 - Nitrogen Output: 0-30L/min - Nitrogen Purity: 99% III. Nitrogen Generator Operation Procedure: - Power-On Sequence: 1. Turn on the air pump switch, run for 2 minutes, and check the air pressure gauge to ensure it reaches above 0.6MPa. 2. Then, turn on the power switch. The A tower pressure begins to rise, and the AB towers start alternating work. As the nitrogen pressure gradually rises to 0.5MPa, open the nitrogen outlet pipeline regulating valve to maintain the nitrogen pressure at least 0.4MPa and continuously discharge outward. The purity of the nitrogen will increase, and it will be supplied after reaching the required purity. 3. Power-Off Sequence: First, close the nitrogen outlet to maintain the nitrogen pressure at a high point, then turn off the intermediate power and air pump switches. 4. The machine is equipped with automatic start/stop pressure control technology. Once the nitrogen pressure reaches 0.6MPa, the nitrogen generator automatically cuts off the power, during which the power button is inactive. When the nitrogen pressure drops to 0.4MPa, it automatically starts running, saving energy and reducing consumption. IV. Quality Assurance Terms: 1. The warranty period for the nitrogen generator and equipment produced by our company is 12 months, unless otherwise agreed upon in the contract. Proper use according to this manual and regular maintenance should ensure a lifespan of 8-10 years. Outside the warranty period, our company will also be responsible for the maintenance of the equipment until it is scrapped. Outside the warranty period, we will only charge for parts if we provide repair services. 2. Warranty Scope: Within the warranty period, the warranty scope covers equipment failure or failure due to inherent quality issues or normal wear and tear of certain components within the equipment or instruments under normal operation. These are all covered under the free warranty scope. If you need free warranty parts or equipment, please notify our company promptly when a fault occurs, and retain the faulty parts as received. Our company will arrange for timely replacement after confirmation by phone or in person. Beijing Pulaixi Technology Co., Ltd. Address: No. 198, Changcui Road, Changping District, Beijing Phone: 18911405427 Website: www.bjpulaixi.cn