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F30-Ⅱ型是组合机头X线机。它具有结构简单、安装方便、经济实用等优点。农村医院多采用此型X线机。现将F30-Ⅱ型X线机几种常见的故障现象和检查简介如下。一、电源电压表故障现象:透视时荧光屏亮度增强、毫安表指示过高(约8～10mA)。若将透视毫安调节器旋到最低处,毫安表指示依然超过正常使用范围。有时当电源电压调节器旋到最高档,电源电压表指示才接近或仍低于220伏。严重时踩下脚闸操纵台内可有明显的嗡嗡声。
F30-II is a combination head X-ray machine. It has the advantages of simple structure, convenient installation, economy and practicality. Rural hospitals use this X-ray machine. Several common fault phenomena and inspections of the F30-II X-ray machine are introduced below. First, the power supply voltage meter failure phenomenon: when the perspective of the screen brightness enhancement, millimeter table indicates too high (about 8 ~ 10mA). If the see-through milliammeter regulator is turned to the lowest position, the milliammeter indication still exceeds the normal range of use. Sometimes when the power supply voltage regulator is turned to the highest level, the supply voltage meter indication is close to or still less than 220 volts. In severe cases, there may be noticeable squeaks in the pedals.