SP-2305E型气相色谱仪的使用很普遍,但使用中也有一些问题。如恒温温度不容易调准,稍一转动旋钮,温度往往变化好几度,甚至十几度。由于刻度指示比较粗糙,再加上视误差,要把旋钮刻度准确调到已知温度位置上比较困难。产生这一问题的主要原因是选用的温度调整电位器不够理 The use of SP-2305E gas chromatograph is very common, but there are some problems in the use. Such as the temperature is not easy to adjust the temperature, a little turn the knob, the temperature tends to change several degrees, or even dozen degrees. As the graduation instructions relatively rough, together with the visual error, it is more difficult to accurately adjust the knob scale to the known temperature. The main reason for this problem is the use of temperature adjustment potentiometer unreasonable