Center negative terminal leak troubleshooting if there is a negative pressure within the examination center terminal dirt clogging, resulting in less than situ sealing spring return, there are air leaks. Remove the dirt inside the terminal, failure can be ruled out. Remove dirt, leak still can not solve, explain the occurrence of negative pressure terminal spring elastic deformation, causing the valve closed lax, replace the negative terminal. When replacing, be sure to pay attention to close the valve negative terminal front-end to reduce dirt contamination of the pipeline. Maintenance of medical devices with Attention 1, due to oxygen combustion, equipment belts, oxygen service center, when the center of negative pressure to the fire ban, ban oil, integrated device with replacement of the terminal to be carried out in the front end of the safety valve is closed . Oxygen equipment, with the price of equipment, vacuum equipment maintenance, the need for the power, under relief. 2, when the medical device with a power supply section inspection, be sure to pay attention to anti-static treatment, fittings and joints firm contact. Prevent electric ignition occurs under oxygen-rich conditions of security risks. Monitoring grounding wire, grounding resistance ensure compliance with state medical equipment grounding resistance of less than 4 ohms requirements, to prevent electric shock injury to the patient. Ward equipment belt _ _ Hebei devices with Ericsson Ericsson provided by the Hebei Medical Engineering Limited. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) strong, credible, Hengshui in Hebei medical device manufacturing equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Ericsson and you hand into the brilliant, for a better future!