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例 1 温度故障1 故障现象 透析机温度过高 ,温度表指示高于 4 0℃ ,而且不可调。2 测量方法 首先测量电源电压值 ,+12Ｖ、- 12Ｖ、+5Ｖ、+2 4Ｖ均正常 ,加热管电压也正常 ,测量温度控制板各值也正常 ,最后测量搅拌电机电压也正常。采用电阻法测量电机线圈阻值 ,发现电机线
Example 1 Temperature fault 1 Symptoms The temperature of the dialysis machine is too high, indicating that the temperature gauge is higher than 40°C and is not adjustable. 2 Measurement method First measure the power supply voltage, +12V, -12V, +5V, +2 4V are all normal, the heating tube voltage is also normal, the temperature control board is also normal, and the final measurement of the stirring motor voltage is also normal. Measure resistance of motor coil by resistance method and find motor line