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近几年日立7070、7060型全自动生化分析仪我国引进了不少，该仪器测试精度高，故障少，用户反映良好。但其因废液排放系统的堵塞造成的停机给日常工作带来了诸多的不便。我们使用该仪器4年来，通过反复摸索，找到废液排放系统反复堵塞原因和预防措施，现介绍如下：故障现象：仪
In recent years, the Hitachi 7070 and 7060 automatic biochemical analyzers have been introduced in many countries. The instrument has high test accuracy, few failures, and good user response. However, the downtime caused by the blockage of the waste discharge system caused many inconveniences for daily work. We have used this instrument for 4 years, through repeated explorations, to find out the reasons for the repeated blockage of the waste liquid discharge system and preventive measures. The following are introduced: Symptom: Instrument