2, should start the alarm switch bus cylinders 3, medical gas supply or switch to emergency backup air source should start the alarm 4, low reserves of gas supply emergency backup should start alarm 5, compressed medical gas supply source pressure exceeds allowed The upper pressure limit and pressure-rated voltage 15% hospital oxygen equipment should start over, under voltage alarm; when the vacuum pressure sinks below the 48kPa, should start undervoltage alarm 6, air supply alarm response for each gas source device at least Set a fault alarm display low quality green oxygen cost, when any one of the in-place alarm activated, the air supply alarm should simultaneously display the corresponding equipment failure 1, circuit and interface design monitoring system should have high reliability, versatility , compatibility and scalability. Key parts or equipment shall be redundant. 2, the monitoring system should be set to the system itself diagnostic software and data redundancy. 3, the central monitoring and management system should be able to live with the same precision measuring instruments simultaneously recorded continuously operating parameters, equipment status of each subsystem. 4, the monitoring system should be equipped with appropriate software in real time transient simulation software, available for stock analysis and forecasting gas consumption. Efficient oxygen equipment installation _ Hebei Ericsson (certified) _ oxygen provided by the Hebei Medical Engineering Co., Ericsson. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) Hebei Hengshui, a leader in medical device manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hebei Ericsson leadership with the staff warmly welcome all inquiries negotiations to create a better future Hebei Ericsson.