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我院的ABL—3血气分析仪已服役15年了,每天开机10h以上,现仍在正常运转,这全靠精心保养和及时检修。我们结合实际,总结归纳维修经验,仅供参考。1 例11．1 故障现象二点定标后,屏上出现PO_2:0.000或有?pH:。1．2 分析和检修经分析认为是氧电极膜的极化电位太低所致。二次更换氧电极均无变化。检查极化电池的电压低于2V,应该是2.6±0.3V。后用二节Ni—Cd钮扣电池代用,工作恢复正常,而pH的“?”也同时消失。2 例2
Our hospital’s ABL-3 blood gas analyzer has been in service for 15 years. It has been in operation for more than 10 hours a day. It is still in normal operation. It depends on meticulous maintenance and timely maintenance. We combine the actual, summed up the maintenance experience for reference only. 1 Example 11.1 Fault After the two-point calibration, PO_2: 0.000 or pH: appears on the screen. 1.2 The analysis and overhaul are considered to be due to the low polarization potential of the oxygen electrode film. There was no change in the secondary oxygen replacement electrode. Check that the voltage of the polarized battery is less than 2V and it should be 2.6±0.3V. After using two Ni-Cd button batteries instead, the work returned to normal, and the “?” of pH also disappeared at the same time. 2 cases 2